ARM driver updates for 5.18

There are a few separately maintained driver subsystems that we merge through
 the SoC tree, notable changes are:
 
  - Memory controller updates, mainly for Tegra and Mediatek SoCs,
    and clarifications for the memory controller DT bindings
 
  - SCMI firmware interface updates, in particular a new transport based
    on OPTEE and support for atomic operations.
 
  - Cleanups to the TEE subsystem, refactoring its memory management
 
 For SoC specific drivers without a separate subsystem, changes include
 
  - Smaller updates and fixes for TI, AT91/SAMA5, Qualcomm and NXP
    Layerscape SoCs.
 
  - Driver support for Microchip SAMA5D29, Tesla FSD, Renesas RZ/G2L,
    and Qualcomm SM8450.
 
  - Better power management on Mediatek MT81xx, NXP i.MX8MQ
    and older NVIDIA Tegra chips
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Merge tag 'arm-drivers-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM driver updates from Arnd Bergmann:
 "There are a few separately maintained driver subsystems that we merge
  through the SoC tree, notable changes are:

   - Memory controller updates, mainly for Tegra and Mediatek SoCs, and
     clarifications for the memory controller DT bindings

   - SCMI firmware interface updates, in particular a new transport
     based on OPTEE and support for atomic operations.

   - Cleanups to the TEE subsystem, refactoring its memory management

  For SoC specific drivers without a separate subsystem, changes include

   - Smaller updates and fixes for TI, AT91/SAMA5, Qualcomm and NXP
     Layerscape SoCs.

   - Driver support for Microchip SAMA5D29, Tesla FSD, Renesas RZ/G2L,
     and Qualcomm SM8450.

   - Better power management on Mediatek MT81xx, NXP i.MX8MQ and older
     NVIDIA Tegra chips"

* tag 'arm-drivers-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (154 commits)
  ARM: spear: fix typos in comments
  soc/microchip: fix invalid free in mpfs_sys_controller_delete
  soc: s4: Add support for power domains controller
  dt-bindings: power: add Amlogic s4 power domains bindings
  ARM: at91: add support in soc driver for new SAMA5D29
  soc: mediatek: mmsys: add sw0_rst_offset in mmsys driver data
  dt-bindings: memory: renesas,rpc-if: Document RZ/V2L SoC
  memory: emif: check the pointer temp in get_device_details()
  memory: emif: Add check for setup_interrupts
  dt-bindings: arm: mediatek: mmsys: add support for MT8186
  dt-bindings: mediatek: add compatible for MT8186 pwrap
  soc: mediatek: pwrap: add pwrap driver for MT8186 SoC
  soc: mediatek: mmsys: add mmsys reset control for MT8186
  soc: mediatek: mtk-infracfg: Disable ACP on MT8192
  soc: ti: k3-socinfo: Add AM62x JTAG ID
  soc: mediatek: add MTK mutex support for MT8186
  soc: mediatek: mmsys: add mt8186 mmsys routing table
  soc: mediatek: pm-domains: Add support for mt8186
  dt-bindings: power: Add MT8186 power domains
  soc: mediatek: pm-domains: Add support for mt8195
  ...

Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.yaml

@@ -29,6 +29,7 @@ properties:
               - mediatek,mt8167-mmsys
               - mediatek,mt8173-mmsys
               - mediatek,mt8183-mmsys
+              - mediatek,mt8186-mmsys
               - mediatek,mt8192-mmsys
               - mediatek,mt8365-mmsys
           - const: syscon

Documentation/devicetree/bindings/arm/msm/qcom,llcc.yaml

@@ -27,6 +27,8 @@ properties:
       - qcom,sm6350-llcc
       - qcom,sm8150-llcc
       - qcom,sm8250-llcc
+      - qcom,sm8350-llcc
+      - qcom,sm8450-llcc
 
   reg:
     items:

Documentation/devicetree/bindings/clock/tesla,fsd-clock.yaml

@@ -0,0 +1,198 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/tesla,fsd-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Tesla FSD (Full Self-Driving) SoC clock controller
+
+maintainers:
+  - Alim Akhtar <alim.akhtar@samsung.com>
+  - linux-fsd@tesla.com
+
+description: |
+  FSD clock controller consist of several clock management unit
+  (CMU), which generates clocks for various inteernal SoC blocks.
+  The root clock comes from external OSC clock (24 MHz).
+
+  All available clocks are defined as preprocessor macros in
+  'dt-bindings/clock/fsd-clk.h' header.
+
+properties:
+  compatible:
+    enum:
+      - tesla,fsd-clock-cmu
+      - tesla,fsd-clock-imem
+      - tesla,fsd-clock-peric
+      - tesla,fsd-clock-fsys0
+      - tesla,fsd-clock-fsys1
+      - tesla,fsd-clock-mfc
+      - tesla,fsd-clock-cam_csi
+
+  clocks:
+    minItems: 1
+    maxItems: 6
+
+  clock-names:
+    minItems: 1
+    maxItems: 6
+
+  "#clock-cells":
+    const: 1
+
+  reg:
+    maxItems: 1
+
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: tesla,fsd-clock-cmu
+    then:
+      properties:
+        clocks:
+          items:
+            - description: External reference clock (24 MHz)
+        clock-names:
+          items:
+            - const: fin_pll
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: tesla,fsd-clock-imem
+    then:
+      properties:
+        clocks:
+          items:
+            - description: External reference clock (24 MHz)
+            - description: IMEM TCU clock (from CMU_CMU)
+            - description: IMEM bus clock (from CMU_CMU)
+            - description: IMEM DMA clock (from CMU_CMU)
+        clock-names:
+          items:
+            - const: fin_pll
+            - const: dout_cmu_imem_tcuclk
+            - const: dout_cmu_imem_aclk
+            - const: dout_cmu_imem_dmaclk
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: tesla,fsd-clock-peric
+    then:
+      properties:
+        clocks:
+          items:
+            - description: External reference clock (24 MHz)
+            - description: Shared0 PLL div4 clock (from CMU_CMU)
+            - description: PERIC shared1 div36 clock (from CMU_CMU)
+            - description: PERIC shared0 div3 TBU clock (from CMU_CMU)
+            - description: PERIC shared0 div20 clock (from CMU_CMU)
+            - description: PERIC shared1 div4 DMAclock (from CMU_CMU)
+        clock-names:
+          items:
+            - const: fin_pll
+            - const: dout_cmu_pll_shared0_div4
+            - const: dout_cmu_peric_shared1div36
+            - const: dout_cmu_peric_shared0div3_tbuclk
+            - const: dout_cmu_peric_shared0div20
+            - const: dout_cmu_peric_shared1div4_dmaclk
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: tesla,fsd-clock-fsys0
+    then:
+      properties:
+        clocks:
+          items:
+            - description: External reference clock (24 MHz)
+            - description: Shared0 PLL div6 clock (from CMU_CMU)
+            - description: FSYS0 shared1 div4 clock (from CMU_CMU)
+            - description: FSYS0 shared0 div4 clock (from CMU_CMU)
+        clock-names:
+          items:
+            - const: fin_pll
+            - const: dout_cmu_pll_shared0_div6
+            - const: dout_cmu_fsys0_shared1div4
+            - const: dout_cmu_fsys0_shared0div4
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: tesla,fsd-clock-fsys1
+    then:
+      properties:
+        clocks:
+          items:
+            - description: External reference clock (24 MHz)
+            - description: FSYS1 shared0 div8 clock (from CMU_CMU)
+            - description: FSYS1 shared0 div4 clock (from CMU_CMU)
+        clock-names:
+          items:
+            - const: fin_pll
+            - const: dout_cmu_fsys1_shared0div8
+            - const: dout_cmu_fsys1_shared0div4
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: tesla,fsd-clock-mfc
+    then:
+      properties:
+        clocks:
+          items:
+            - description: External reference clock (24 MHz)
+        clock-names:
+          items:
+            - const: fin_pll
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: tesla,fsd-clock-cam_csi
+    then:
+      properties:
+        clocks:
+          items:
+            - description: External reference clock (24 MHz)
+        clock-names:
+          items:
+            - const: fin_pll
+
+required:
+  - compatible
+  - "#clock-cells"
+  - clocks
+  - clock-names
+  - reg
+
+additionalProperties: false
+
+examples:
+  # Clock controller node for CMU_FSYS1
+  - |
+    #include <dt-bindings/clock/fsd-clk.h>
+
+    clock_fsys1: clock-controller@16810000 {
+          compatible = "tesla,fsd-clock-fsys1";
+          reg = <0x16810000 0x3000>;
+          #clock-cells = <1>;
+
+          clocks = <&fin_pll>,
+                   <&clock_cmu DOUT_CMU_FSYS1_SHARED0DIV8>,
+                   <&clock_cmu DOUT_CMU_FSYS1_SHARED0DIV4>;
+          clock-names = "fin_pll",
+                        "dout_cmu_fsys1_shared0div8",
+                        "dout_cmu_fsys1_shared0div4";
+    };
+
+...

Documentation/devicetree/bindings/firmware/arm,scmi.yaml

@@ -38,6 +38,9 @@ properties:
                      The virtio transport only supports a single device.
         items:
           - const: arm,scmi-virtio
+      - description: SCMI compliant firmware with OP-TEE transport
+        items:
+          - const: linaro,scmi-optee
 
   interrupts:
     description:
@@ -78,11 +81,24 @@ properties:
   '#size-cells':
     const: 0
 
+  atomic-threshold-us:
+    description:
+      An optional time value, expressed in microseconds, representing, on this
+      platform, the threshold above which any SCMI command, advertised to have
+      an higher-than-threshold execution latency, should not be considered for
+      atomic mode of operation, even if requested.
+    default: 0
+
   arm,smc-id:
     $ref: /schemas/types.yaml#/definitions/uint32
     description:
       SMC id required when using smc or hvc transports
 
+  linaro,optee-channel-id:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description:
+      Channel specifier required when using OP-TEE transport.
+
   protocol@11:
     type: object
     properties:
@@ -195,6 +211,12 @@ patternProperties:
         minItems: 1
         maxItems: 2
 
+      linaro,optee-channel-id:
+        $ref: /schemas/types.yaml#/definitions/uint32
+        description:
+          Channel specifier required when using OP-TEE transport and
+          protocol has a dedicated communication channel.
+
     required:
       - reg
 
@@ -226,6 +248,16 @@ else:
       - arm,smc-id
       - shmem
 
+  else:
+    if:
+      properties:
+        compatible:
+          contains:
+            const: linaro,scmi-optee
+    then:
+      required:
+        - linaro,optee-channel-id
+
 examples:
   - |
     firmware {
@@ -240,6 +272,8 @@ examples:
             #address-cells = <1>;
             #size-cells = <0>;
 
+            atomic-threshold-us = <10000>;
+
             scmi_devpd: protocol@11 {
                 reg = <0x11>;
                 #power-domain-cells = <1>;
@@ -340,7 +374,48 @@ examples:
                 reg = <0x11>;
                 #power-domain-cells = <1>;
             };
+        };
+    };
 
+  - |
+    firmware {
+        scmi {
+            compatible = "linaro,scmi-optee";
+            linaro,optee-channel-id = <0>;
+
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            scmi_dvfs1: protocol@13 {
+                reg = <0x13>;
+                linaro,optee-channel-id = <1>;
+                shmem = <&cpu_optee_lpri0>;
+                #clock-cells = <1>;
+            };
+
+            scmi_clk0: protocol@14 {
+                reg = <0x14>;
+                #clock-cells = <1>;
+            };
+        };
+    };
+
+    soc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        sram@51000000 {
+            compatible = "mmio-sram";
+            reg = <0x0 0x51000000 0x0 0x10000>;
+
+            #address-cells = <1>;
+            #size-cells = <1>;
+            ranges = <0 0x0 0x51000000 0x10000>;
+
+            cpu_optee_lpri0: optee-sram-section@0 {
+                compatible = "arm,scmi-shmem";
+                reg = <0x0 0x80>;
+            };
         };
     };
 

Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr2-timings.yaml

@@ -0,0 +1,135 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/memory-controllers/ddr/jedec,lpddr2-timings.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: LPDDR2 SDRAM AC timing parameters for a given speed-bin
+
+maintainers:
+  - Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
+
+properties:
+  compatible:
+    const: jedec,lpddr2-timings
+
+  max-freq:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      Maximum DDR clock frequency for the speed-bin, in Hz.
+
+  min-freq:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      Minimum DDR clock frequency for the speed-bin, in Hz.
+
+  tCKESR:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      CKE minimum pulse width during SELF REFRESH (low pulse width during
+      SELF REFRESH) in pico seconds.
+
+  tDQSCK-max:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      DQS output data access time from CK_t/CK_c in pico seconds.
+
+  tDQSCK-max-derated:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      DQS output data access time from CK_t/CK_c, temperature de-rated, in pico
+      seconds.
+
+  tFAW:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      Four-bank activate window in pico seconds.
+
+  tRAS-max-ns:
+    description: |
+      Row active time in nano seconds.
+
+  tRAS-min:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      Row active time in pico seconds.
+
+  tRCD:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      RAS-to-CAS delay in pico seconds.
+
+  tRPab:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      Row precharge time (all banks) in pico seconds.
+
+  tRRD:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      Active bank A to active bank B in pico seconds.
+
+  tRTP:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      Internal READ to PRECHARGE command delay in pico seconds.
+
+  tWR:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      WRITE recovery time in pico seconds.
+
+  tWTR:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      Internal WRITE-to-READ command delay in pico seconds.
+
+  tXP:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      Exit power-down to next valid command delay in pico seconds.
+
+  tZQCL:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      Long calibration time in pico seconds.
+
+  tZQCS:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      Short calibration time in pico seconds.
+
+  tZQinit:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      Initialization calibration time in pico seconds.
+
+required:
+  - compatible
+  - min-freq
+  - max-freq
+
+additionalProperties: false
+
+examples:
+  - |
+    timings {
+        compatible = "jedec,lpddr2-timings";
+        min-freq = <10000000>;
+        max-freq = <400000000>;
+        tCKESR = <15000>;
+        tDQSCK-max = <5500>;
+        tFAW = <50000>;
+        tRAS-max-ns = <70000>;
+        tRAS-min = <42000>;
+        tRPab = <21000>;
+        tRCD = <18000>;
+        tRRD = <10000>;
+        tRTP = <7500>;
+        tWR = <15000>;
+        tWTR = <7500>;
+        tXP = <7500>;
+        tZQCL = <360000>;
+        tZQCS = <90000>;
+        tZQinit = <1000000>;
+    };

Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr2.yaml

@@ -30,12 +30,26 @@ properties:
     maximum: 255
     description: |
       Revision 1 value of SDRAM chip. Obtained from device datasheet.
+      Property is deprecated, use revision-id instead.
+    deprecated: true
 
   revision-id2:
     $ref: /schemas/types.yaml#/definitions/uint32
     maximum: 255
     description: |
       Revision 2 value of SDRAM chip. Obtained from device datasheet.
+      Property is deprecated, use revision-id instead.
+    deprecated: true
+
+  revision-id:
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    description: |
+      Revision IDs read from Mode Register 6 and 7. One byte per uint32 cell (i.e. <MR6 MR7>).
+    minItems: 2
+    maxItems: 2
+    items:
+      minimum: 0
+      maximum: 255
 
   density:
     $ref: /schemas/types.yaml#/definitions/uint32
@@ -142,14 +156,12 @@ properties:
 
 patternProperties:
   "^lpddr2-timings":
-    type: object
+    $ref: jedec,lpddr2-timings.yaml
     description: |
       The lpddr2 node may have one or more child nodes of type "lpddr2-timings".
       "lpddr2-timings" provides AC timing parameters of the device for
       a given speed-bin. The user may provide the timings for as many
-      speed-bins as is required. Please see Documentation/devicetree/
-      bindings/memory-controllers/ddr/lpddr2-timings.txt for more information
-      on "lpddr2-timings".
+      speed-bins as is required.
 
 required:
   - compatible
@@ -164,8 +176,7 @@ examples:
         compatible = "elpida,ECB240ABACN", "jedec,lpddr2-s4";
         density = <2048>;
         io-width = <32>;
-        revision-id1 = <1>;
-        revision-id2 = <0>;
+        revision-id = <1 0>;
 
         tRPab-min-tck = <3>;
         tRCD-min-tck = <3>;

Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr3-timings.yaml

@@ -0,0 +1,157 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/memory-controllers/ddr/jedec,lpddr3-timings.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: LPDDR3 SDRAM AC timing parameters for a given speed-bin
+
+maintainers:
+  - Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
+
+properties:
+  compatible:
+    const: jedec,lpddr3-timings
+
+  reg:
+    maxItems: 1
+    description: |
+      Maximum DDR clock frequency for the speed-bin, in Hz.
+      Property is deprecated, use max-freq.
+    deprecated: true
+
+  max-freq:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      Maximum DDR clock frequency for the speed-bin, in Hz.
+
+  min-freq:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      Minimum DDR clock frequency for the speed-bin, in Hz.
+
+  tCKE:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      CKE minimum pulse width (HIGH and LOW pulse width) in pico seconds.
+
+  tCKESR:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      CKE minimum pulse width during SELF REFRESH (low pulse width during
+      SELF REFRESH) in pico seconds.
+
+  tFAW:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      Four-bank activate window in pico seconds.
+
+  tMRD:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      Mode register set command delay in pico seconds.
+
+  tR2R-C2C:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      Additional READ-to-READ delay in chip-to-chip cases in pico seconds.
+
+  tRAS:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      Row active time in pico seconds.
+
+  tRC:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      ACTIVATE-to-ACTIVATE command period in pico seconds.
+
+  tRCD:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      RAS-to-CAS delay in pico seconds.
+
+  tRFC:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      Refresh Cycle time in pico seconds.
+
+  tRPab:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      Row precharge time (all banks) in pico seconds.
+
+  tRPpb:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      Row precharge time (single banks) in pico seconds.
+
+  tRRD:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      Active bank A to active bank B in pico seconds.
+
+  tRTP:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      Internal READ to PRECHARGE command delay in pico seconds.
+
+  tW2W-C2C:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      Additional WRITE-to-WRITE delay in chip-to-chip cases in pico seconds.
+
+  tWR:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      WRITE recovery time in pico seconds.
+
+  tWTR:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      Internal WRITE-to-READ command delay in pico seconds.
+
+  tXP:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      Exit power-down to next valid command delay in pico seconds.
+
+  tXSR:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      SELF REFRESH exit to next valid command delay in pico seconds.
+
+required:
+  - compatible
+  - min-freq
+  - max-freq
+
+additionalProperties: false
+
+examples:
+  - |
+    lpddr3 {
+        timings {
+            compatible = "jedec,lpddr3-timings";
+            max-freq = <800000000>;
+            min-freq = <100000000>;
+            tCKE = <3750>;
+            tCKESR = <3750>;
+            tFAW = <25000>;
+            tMRD = <7000>;
+            tR2R-C2C = <0>;
+            tRAS = <23000>;
+            tRC = <33750>;
+            tRCD = <10000>;
+            tRFC = <65000>;
+            tRPab = <12000>;
+            tRPpb = <12000>;
+            tRRD = <6000>;
+            tRTP = <3750>;
+            tW2W-C2C = <0>;
+            tWR = <7500>;
+            tWTR = <3750>;
+            tXP = <3750>;
+            tXSR = <70000>;
+        };
+    };

Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr3.yaml

@@ -0,0 +1,263 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/memory-controllers/ddr/jedec,lpddr3.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: LPDDR3 SDRAM compliant to JEDEC JESD209-3
+
+maintainers:
+  - Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - samsung,K3QF2F20DB
+      - const: jedec,lpddr3
+
+  '#address-cells':
+    const: 1
+    deprecated: true
+
+  density:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      Density in megabits of SDRAM chip.
+    enum:
+      - 4096
+      - 8192
+      - 16384
+      - 32768
+
+  io-width:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      IO bus width in bits of SDRAM chip.
+    enum:
+      - 32
+      - 16
+
+  manufacturer-id:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      Manufacturer ID value read from Mode Register 5.  The property is
+      deprecated, manufacturer should be derived from the compatible.
+    deprecated: true
+
+  revision-id:
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    minItems: 2
+    maxItems: 2
+    items:
+      maximum: 255
+    description: |
+      Revision value of SDRAM chip read from Mode Registers 6 and 7.
+
+  '#size-cells':
+    const: 0
+    deprecated: true
+
+  tCKE-min-tck:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    maximum: 15
+    description: |
+      CKE minimum pulse width (HIGH and LOW pulse width) in terms of number
+      of clock cycles.
+
+  tCKESR-min-tck:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    maximum: 15
+    description: |
+      CKE minimum pulse width during SELF REFRESH (low pulse width during
+      SELF REFRESH) in terms of number of clock cycles.
+
+  tDQSCK-min-tck:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    maximum: 15
+    description: |
+      DQS output data access time from CK_t/CK_c in terms of number of clock
+      cycles.
+
+  tFAW-min-tck:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    maximum: 63
+    description: |
+      Four-bank activate window in terms of number of clock cycles.
+
+  tMRD-min-tck:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    maximum: 15
+    description: |
+      Mode register set command delay in terms of number of clock cycles.
+
+  tR2R-C2C-min-tck:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    enum: [0, 1]
+    description: |
+      Additional READ-to-READ delay in chip-to-chip cases in terms of number
+      of clock cycles.
+
+  tRAS-min-tck:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    maximum: 63
+    description: |
+      Row active time in terms of number of clock cycles.
+
+  tRC-min-tck:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    maximum: 63
+    description: |
+      ACTIVATE-to-ACTIVATE command period in terms of number of clock cycles.
+
+  tRCD-min-tck:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    maximum: 15
+    description: |
+      RAS-to-CAS delay in terms of number of clock cycles.
+
+  tRFC-min-tck:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    maximum: 255
+    description: |
+      Refresh Cycle time in terms of number of clock cycles.
+
+  tRL-min-tck:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    maximum: 15
+    description: |
+     READ data latency in terms of number of clock cycles.
+
+  tRPab-min-tck:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    maximum: 15
+    description: |
+      Row precharge time (all banks) in terms of number of clock cycles.
+
+  tRPpb-min-tck:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    maximum: 15
+    description: |
+      Row precharge time (single banks) in terms of number of clock cycles.
+
+  tRRD-min-tck:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    maximum: 15
+    description: |
+      Active bank A to active bank B in terms of number of clock cycles.
+
+  tRTP-min-tck:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    maximum: 15
+    description: |
+      Internal READ to PRECHARGE command delay in terms of number of clock
+      cycles.
+
+  tW2W-C2C-min-tck:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    enum: [0, 1]
+    description: |
+      Additional WRITE-to-WRITE delay in chip-to-chip cases in terms of number
+      of clock cycles.
+
+  tWL-min-tck:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    maximum: 15
+    description: |
+      WRITE data latency in terms of number of clock cycles.
+
+  tWR-min-tck:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    maximum: 15
+    description: |
+      WRITE recovery time in terms of number of clock cycles.
+
+  tWTR-min-tck:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    maximum: 15
+    description: |
+      Internal WRITE-to-READ command delay in terms of number of clock cycles.
+
+  tXP-min-tck:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    maximum: 255
+    description: |
+      Exit power-down to next valid command delay in terms of number of clock
+      cycles.
+
+  tXSR-min-tck:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    maximum: 1023
+    description: |
+      SELF REFRESH exit to next valid command delay in terms of number of clock
+      cycles.
+
+patternProperties:
+  "^timings((-[0-9])+|(@[0-9a-f]+))?$":
+    $ref: jedec,lpddr3-timings.yaml
+    description: |
+      The lpddr3 node may have one or more child nodes with timings.
+      Each timing node provides AC timing parameters of the device for a given
+      speed-bin. The user may provide the timings for as many speed-bins as is
+      required.
+
+required:
+  - compatible
+  - density
+  - io-width
+
+additionalProperties: false
+
+examples:
+  - |
+    lpddr3 {
+        compatible = "samsung,K3QF2F20DB", "jedec,lpddr3";
+        density = <16384>;
+        io-width = <32>;
+
+        tCKE-min-tck = <2>;
+        tCKESR-min-tck = <2>;
+        tDQSCK-min-tck = <5>;
+        tFAW-min-tck = <5>;
+        tMRD-min-tck = <5>;
+        tR2R-C2C-min-tck = <0>;
+        tRAS-min-tck = <5>;
+        tRC-min-tck = <6>;
+        tRCD-min-tck = <3>;
+        tRFC-min-tck = <17>;
+        tRL-min-tck = <14>;
+        tRPab-min-tck = <2>;
+        tRPpb-min-tck = <2>;
+        tRRD-min-tck = <2>;
+        tRTP-min-tck = <2>;
+        tW2W-C2C-min-tck = <0>;
+        tWL-min-tck = <8>;
+        tWR-min-tck = <7>;
+        tWTR-min-tck = <2>;
+        tXP-min-tck = <2>;
+        tXSR-min-tck = <12>;
+
+        timings {
+            compatible = "jedec,lpddr3-timings";
+            max-freq = <800000000>;
+            min-freq = <100000000>;
+            tCKE = <3750>;
+            tCKESR = <3750>;
+            tFAW = <25000>;
+            tMRD = <7000>;
+            tR2R-C2C = <0>;
+            tRAS = <23000>;
+            tRC = <33750>;
+            tRCD = <10000>;
+            tRFC = <65000>;
+            tRPab = <12000>;
+            tRPpb = <12000>;
+            tRRD = <6000>;
+            tRTP = <3750>;
+            tW2W-C2C = <0>;
+            tWR = <7500>;
+            tWTR = <3750>;
+            tXP = <3750>;
+            tXSR = <70000>;
+        };
+    };

Documentation/devicetree/bindings/memory-controllers/ddr/lpddr2-timings.txt

@@ -1,52 +0,0 @@
-* AC timing parameters of LPDDR2(JESD209-2) memories for a given speed-bin
-
-Required properties:
-- compatible : Should be "jedec,lpddr2-timings"
-- min-freq : minimum DDR clock frequency for the speed-bin. Type is <u32>
-- max-freq : maximum DDR clock frequency for the speed-bin. Type is <u32>
-
-Optional properties:
-
-The following properties represent AC timing parameters from the memory
-data-sheet of the device for a given speed-bin. All these properties are
-of type <u32> and the default unit is ps (pico seconds). Parameters with
-a different unit have a suffix indicating the unit such as 'tRAS-max-ns'
-- tRCD
-- tWR
-- tRAS-min
-- tRRD
-- tWTR
-- tXP
-- tRTP
-- tDQSCK-max
-- tFAW
-- tZQCS
-- tZQinit
-- tRPab
-- tZQCL
-- tCKESR
-- tRAS-max-ns
-- tDQSCK-max-derated
-
-Example:
-
-timings_elpida_ECB240ABACN_400mhz: lpddr2-timings@0 {
-	compatible	= "jedec,lpddr2-timings";
-	min-freq	= <10000000>;
-	max-freq	= <400000000>;
-	tRPab		= <21000>;
-	tRCD		= <18000>;
-	tWR		= <15000>;
-	tRAS-min	= <42000>;
-	tRRD		= <10000>;
-	tWTR		= <7500>;
-	tXP		= <7500>;
-	tRTP		= <7500>;
-	tCKESR		= <15000>;
-	tDQSCK-max	= <5500>;
-	tFAW		= <50000>;
-	tZQCS		= <90000>;
-	tZQCL		= <360000>;
-	tZQinit		= <1000000>;
-	tRAS-max-ns	= <70000>;
-};

Documentation/devicetree/bindings/memory-controllers/ddr/lpddr3-timings.txt

@@ -1,58 +0,0 @@
-* AC timing parameters of LPDDR3 memories for a given speed-bin.
-
-The structures are based on LPDDR2 and extended where needed.
-
-Required properties:
-- compatible : Should be "jedec,lpddr3-timings"
-- min-freq : minimum DDR clock frequency for the speed-bin. Type is <u32>
-- reg : maximum DDR clock frequency for the speed-bin. Type is <u32>
-
-Optional properties:
-
-The following properties represent AC timing parameters from the memory
-data-sheet of the device for a given speed-bin. All these properties are
-of type <u32> and the default unit is ps (pico seconds).
-- tRFC
-- tRRD
-- tRPab
-- tRPpb
-- tRCD
-- tRC
-- tRAS
-- tWTR
-- tWR
-- tRTP
-- tW2W-C2C
-- tR2R-C2C
-- tFAW
-- tXSR
-- tXP
-- tCKE
-- tCKESR
-- tMRD
-
-Example:
-
-timings_samsung_K3QF2F20DB_800mhz: lpddr3-timings@800000000 {
-	compatible	= "jedec,lpddr3-timings";
-	reg		= <800000000>; /* workaround: it shows max-freq */
-	min-freq	= <100000000>;
-	tRFC		= <65000>;
-	tRRD		= <6000>;
-	tRPab		= <12000>;
-	tRPpb		= <12000>;
-	tRCD		= <10000>;
-	tRC		= <33750>;
-	tRAS		= <23000>;
-	tWTR		= <3750>;
-	tWR		= <7500>;
-	tRTP		= <3750>;
-	tW2W-C2C	= <0>;
-	tR2R-C2C	= <0>;
-	tFAW		= <25000>;
-	tXSR		= <70000>;
-	tXP		= <3750>;
-	tCKE		= <3750>;
-	tCKESR		= <3750>;
-	tMRD		= <7000>;
-};

Documentation/devicetree/bindings/memory-controllers/ddr/lpddr3.txt

@@ -1,107 +0,0 @@
-* LPDDR3 SDRAM memories compliant to JEDEC JESD209-3C
-
-Required properties:
-- compatible : Should be "<vendor>,<type>", and generic value "jedec,lpddr3".
-  Example "<vendor>,<type>" values:
-    "samsung,K3QF2F20DB"
-
-- density  : <u32> representing density in Mb (Mega bits)
-- io-width : <u32> representing bus width. Possible values are 8, 16, 32, 64
-- #address-cells: Must be set to 1
-- #size-cells: Must be set to 0
-
-Optional properties:
-
-- manufacturer-id : <u32>     Manufacturer ID value read from Mode Register 5
-- revision-id     : <u32 u32> Revision IDs read from Mode Registers 6 and 7
-
-The following optional properties represent the minimum value of some AC
-timing parameters of the DDR device in terms of number of clock cycles.
-These values shall be obtained from the device data-sheet.
-- tRFC-min-tck
-- tRRD-min-tck
-- tRPab-min-tck
-- tRPpb-min-tck
-- tRCD-min-tck
-- tRC-min-tck
-- tRAS-min-tck
-- tWTR-min-tck
-- tWR-min-tck
-- tRTP-min-tck
-- tW2W-C2C-min-tck
-- tR2R-C2C-min-tck
-- tWL-min-tck
-- tDQSCK-min-tck
-- tRL-min-tck
-- tFAW-min-tck
-- tXSR-min-tck
-- tXP-min-tck
-- tCKE-min-tck
-- tCKESR-min-tck
-- tMRD-min-tck
-
-Child nodes:
-- The lpddr3 node may have one or more child nodes of type "lpddr3-timings".
-  "lpddr3-timings" provides AC timing parameters of the device for
-  a given speed-bin. Please see
-  Documentation/devicetree/bindings/memory-controllers/ddr/lpddr3-timings.txt
-  for more information on "lpddr3-timings"
-
-Example:
-
-samsung_K3QF2F20DB: lpddr3 {
-	compatible	= "samsung,K3QF2F20DB", "jedec,lpddr3";
-	density		= <16384>;
-	io-width	= <32>;
-	manufacturer-id = <1>;
-	revision-id     = <123 234>;
-	#address-cells	= <1>;
-	#size-cells	= <0>;
-
-	tRFC-min-tck		= <17>;
-	tRRD-min-tck		= <2>;
-	tRPab-min-tck		= <2>;
-	tRPpb-min-tck		= <2>;
-	tRCD-min-tck		= <3>;
-	tRC-min-tck		= <6>;
-	tRAS-min-tck		= <5>;
-	tWTR-min-tck		= <2>;
-	tWR-min-tck		= <7>;
-	tRTP-min-tck		= <2>;
-	tW2W-C2C-min-tck	= <0>;
-	tR2R-C2C-min-tck	= <0>;
-	tWL-min-tck		= <8>;
-	tDQSCK-min-tck		= <5>;
-	tRL-min-tck		= <14>;
-	tFAW-min-tck		= <5>;
-	tXSR-min-tck		= <12>;
-	tXP-min-tck		= <2>;
-	tCKE-min-tck		= <2>;
-	tCKESR-min-tck		= <2>;
-	tMRD-min-tck		= <5>;
-
-	timings_samsung_K3QF2F20DB_800mhz: lpddr3-timings@800000000 {
-		compatible	= "jedec,lpddr3-timings";
-		/* workaround: 'reg' shows max-freq */
-		reg		= <800000000>;
-		min-freq	= <100000000>;
-		tRFC		= <65000>;
-		tRRD		= <6000>;
-		tRPab		= <12000>;
-		tRPpb		= <12000>;
-		tRCD		= <10000>;
-		tRC		= <33750>;
-		tRAS		= <23000>;
-		tWTR		= <3750>;
-		tWR		= <7500>;
-		tRTP		= <3750>;
-		tW2W-C2C	= <0>;
-		tR2R-C2C	= <0>;
-		tFAW		= <25000>;
-		tXSR		= <70000>;
-		tXP		= <3750>;
-		tCKE		= <3750>;
-		tCKESR		= <3750>;
-		tMRD		= <7000>;
-	};
-}

Documentation/devicetree/bindings/memory-controllers/fsl/fsl,ifc.yaml

@@ -0,0 +1,113 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/memory-controllers/fsl/fsl,ifc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: FSL/NXP Integrated Flash Controller
+
+maintainers:
+  - Li Yang <leoyang.li@nxp.com>
+
+description: |
+  NXP's integrated flash controller (IFC) is an advanced version of the
+  enhanced local bus controller which includes similar programming and signal
+  interfaces with an extended feature set. The IFC provides access to multiple
+  external memory types, such as NAND flash (SLC and MLC), NOR flash, EPROM,
+  SRAM and other memories where address and data are shared on a bus.
+
+properties:
+  $nodename:
+    pattern: "^memory-controller@[0-9a-f]+$"
+
+  compatible:
+    const: fsl,ifc
+
+  "#address-cells":
+    enum: [2, 3]
+    description: |
+      Should be either two or three.  The first cell is the chipselect
+      number, and the remaining cells are the offset into the chipselect.
+
+  "#size-cells":
+    enum: [1, 2]
+    description: |
+      Either one or two, depending on how large each chipselect can be.
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    minItems: 1
+    maxItems: 2
+    description: |
+      IFC may have one or two interrupts.  If two interrupt specifiers are
+      present, the first is the "common" interrupt (CM_EVTER_STAT), and the
+      second is the NAND interrupt (NAND_EVTER_STAT).  If there is only one,
+      that interrupt reports both types of event.
+
+  little-endian:
+    type: boolean
+    description: |
+      If this property is absent, the big-endian mode will be in use as default
+      for registers.
+
+  ranges:
+    description: |
+      Each range corresponds to a single chipselect, and covers the entire
+      access window as configured.
+
+patternProperties:
+  "^.*@[a-f0-9]+(,[a-f0-9]+)+$":
+    type: object
+    description: |
+      Child device nodes describe the devices connected to IFC such as NOR (e.g.
+      cfi-flash) and NAND (fsl,ifc-nand). There might be board specific devices
+      like FPGAs, CPLDs, etc.
+
+    required:
+      - compatible
+      - reg
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    soc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        memory-controller@ffe1e000 {
+            compatible = "fsl,ifc";
+            #address-cells = <2>;
+            #size-cells = <1>;
+            reg = <0x0 0xffe1e000 0 0x2000>;
+            interrupts = <16 2 19 2>;
+            little-endian;
+
+            /* NOR, NAND Flashes and CPLD on board */
+            ranges = <0x0 0x0 0x0 0xee000000 0x02000000>,
+                     <0x1 0x0 0x0 0xffa00000 0x00010000>,
+                     <0x3 0x0 0x0 0xffb00000 0x00020000>;
+
+            flash@0,0 {
+                #address-cells = <1>;
+                #size-cells = <1>;
+                compatible = "cfi-flash";
+                reg = <0x0 0x0 0x2000000>;
+                bank-width = <2>;
+                device-width = <1>;
+
+                partition@0 {
+                    /* 32MB for user data */
+                    reg = <0x0 0x02000000>;
+                    label = "NOR Data";
+                };
+            };
+        };
+    };

Documentation/devicetree/bindings/memory-controllers/fsl/ifc.txt

@@ -1,82 +0,0 @@
-Integrated Flash Controller
-
-Properties:
-- name : Should be ifc
-- compatible : should contain "fsl,ifc". The version of the integrated
-               flash controller can be found in the IFC_REV register at
-               offset zero.
-
-- #address-cells : Should be either two or three.  The first cell is the
-                   chipselect number, and the remaining cells are the
-                   offset into the chipselect.
-- #size-cells : Either one or two, depending on how large each chipselect
-                can be.
-- reg : Offset and length of the register set for the device
-- interrupts: IFC may have one or two interrupts.  If two interrupt
-              specifiers are present, the first is the "common"
-              interrupt (CM_EVTER_STAT), and the second is the NAND
-              interrupt (NAND_EVTER_STAT).  If there is only one,
-              that interrupt reports both types of event.
-
-- little-endian : If this property is absent, the big-endian mode will
-                  be in use as default for registers.
-
-- ranges : Each range corresponds to a single chipselect, and covers
-           the entire access window as configured.
-
-Child device nodes describe the devices connected to IFC such as NOR (e.g.
-cfi-flash) and NAND (fsl,ifc-nand). There might be board specific devices
-like FPGAs, CPLDs, etc.
-
-Example:
-
-	ifc@ffe1e000 {
-		compatible = "fsl,ifc", "simple-bus";
-		#address-cells = <2>;
-		#size-cells = <1>;
-		reg = <0x0 0xffe1e000 0 0x2000>;
-		interrupts = <16 2 19 2>;
-		little-endian;
-
-		/* NOR, NAND Flashes and CPLD on board */
-		ranges = <0x0 0x0 0x0 0xee000000 0x02000000
-			  0x1 0x0 0x0 0xffa00000 0x00010000
-			  0x3 0x0 0x0 0xffb00000 0x00020000>;
-
-		flash@0,0 {
-			#address-cells = <1>;
-			#size-cells = <1>;
-			compatible = "cfi-flash";
-			reg = <0x0 0x0 0x2000000>;
-			bank-width = <2>;
-			device-width = <1>;
-
-			partition@0 {
-				/* 32MB for user data */
-				reg = <0x0 0x02000000>;
-				label = "NOR Data";
-			};
-		};
-
-		flash@1,0 {
-			#address-cells = <1>;
-			#size-cells = <1>;
-			compatible = "fsl,ifc-nand";
-			reg = <0x1 0x0 0x10000>;
-
-			partition@0 {
-				/* This location must not be altered  */
-				/* 1MB for u-boot Bootloader Image */
-				reg = <0x0 0x00100000>;
-				label = "NAND U-Boot Image";
-				read-only;
-			};
-		};
-
-		cpld@3,0 {
-			#address-cells = <1>;
-			#size-cells = <1>;
-			compatible = "fsl,p1010rdb-cpld";
-			reg = <0x3 0x0 0x000001f>;
-		};
-	};

Documentation/devicetree/bindings/memory-controllers/mediatek,smi-common.yaml

@@ -16,7 +16,7 @@ description: |
   MediaTek SMI have two generations of HW architecture, here is the list
   which generation the SoCs use:
   generation 1: mt2701 and mt7623.
-  generation 2: mt2712, mt6779, mt8167, mt8173, mt8183, mt8192 and mt8195.
+  generation 2: mt2712, mt6779, mt8167, mt8173, mt8183, mt8186, mt8192 and mt8195.
 
   There's slight differences between the two SMI, for generation 2, the
   register which control the iommu port is at each larb's register base. But
@@ -35,6 +35,7 @@ properties:
           - mediatek,mt8167-smi-common
           - mediatek,mt8173-smi-common
           - mediatek,mt8183-smi-common
+          - mediatek,mt8186-smi-common
           - mediatek,mt8192-smi-common
           - mediatek,mt8195-smi-common-vdo
           - mediatek,mt8195-smi-common-vpp
@@ -88,10 +89,9 @@ allOf:
               - mediatek,mt2701-smi-common
     then:
       properties:
-        clock:
-          items:
-            minItems: 3
-            maxItems: 3
+        clocks:
+          minItems: 3
+          maxItems: 3
         clock-names:
           items:
             - const: apb
@@ -108,10 +108,9 @@ allOf:
       required:
         - mediatek,smi
       properties:
-        clock:
-          items:
-            minItems: 3
-            maxItems: 3
+        clocks:
+          minItems: 3
+          maxItems: 3
         clock-names:
           items:
             - const: apb
@@ -127,16 +126,16 @@ allOf:
           enum:
             - mediatek,mt6779-smi-common
             - mediatek,mt8183-smi-common
+            - mediatek,mt8186-smi-common
             - mediatek,mt8192-smi-common
             - mediatek,mt8195-smi-common-vdo
             - mediatek,mt8195-smi-common-vpp
 
     then:
       properties:
-        clock:
-          items:
-            minItems: 4
-            maxItems: 4
+        clocks:
+          minItems: 4
+          maxItems: 4
         clock-names:
           items:
             - const: apb
@@ -146,10 +145,9 @@ allOf:
 
     else:  # for gen2 HW that don't have gals
       properties:
-        clock:
-          items:
-            minItems: 2
-            maxItems: 2
+        clocks:
+          minItems: 2
+          maxItems: 2
         clock-names:
           items:
             - const: apb

Documentation/devicetree/bindings/memory-controllers/mediatek,smi-larb.yaml

@@ -23,6 +23,7 @@ properties:
           - mediatek,mt8167-smi-larb
           - mediatek,mt8173-smi-larb
           - mediatek,mt8183-smi-larb
+          - mediatek,mt8186-smi-larb
           - mediatek,mt8192-smi-larb
           - mediatek,mt8195-smi-larb
 
@@ -75,15 +76,16 @@ allOf:
         compatible:
           enum:
             - mediatek,mt8183-smi-larb
+            - mediatek,mt8186-smi-larb
             - mediatek,mt8195-smi-larb
 
     then:
       properties:
-        clock:
-          items:
-            minItems: 3
-            maxItems: 3
+        clocks:
+          minItems: 2
+          maxItems: 3
         clock-names:
+          minItems: 2
           items:
             - const: apb
             - const: smi
@@ -91,10 +93,9 @@ allOf:
 
     else:
       properties:
-        clock:
-          items:
-            minItems: 2
-            maxItems: 2
+        clocks:
+          minItems: 2
+          maxItems: 2
         clock-names:
           items:
             - const: apb
@@ -108,7 +109,7 @@ allOf:
               - mediatek,mt2701-smi-larb
               - mediatek,mt2712-smi-larb
               - mediatek,mt6779-smi-larb
-              - mediatek,mt8167-smi-larb
+              - mediatek,mt8186-smi-larb
               - mediatek,mt8192-smi-larb
               - mediatek,mt8195-smi-larb
 

Documentation/devicetree/bindings/memory-controllers/renesas,rpc-if.yaml

@@ -40,7 +40,8 @@ properties:
       - items:
           - enum:
               - renesas,r9a07g044-rpc-if      # RZ/G2{L,LC}
-          - const: renesas,rzg2l-rpc-if       # RZ/G2L family
+              - renesas,r9a07g054-rpc-if      # RZ/V2L
+          - const: renesas,rzg2l-rpc-if
 
   reg:
     items:

Documentation/devicetree/bindings/memory-controllers/samsung,exynos5422-dmc.yaml

@@ -51,8 +51,7 @@ properties:
     $ref: '/schemas/types.yaml#/definitions/phandle'
     description: |
       phandle of the connected DRAM memory device. For more information please
-      refer to documentation file:
-      Documentation/devicetree/bindings/memory-controllers/ddr/lpddr3.txt
+      refer to jedec,lpddr3.yaml.
 
   operating-points-v2: true
 

Documentation/devicetree/bindings/power/amlogic,meson-sec-pwrc.yaml

@@ -12,13 +12,14 @@ maintainers:
   - Jianxin Pan <jianxin.pan@amlogic.com>
 
 description: |+
-  Secure Power Domains used in Meson A1/C1 SoCs, and should be the child node
+  Secure Power Domains used in Meson A1/C1/S4 SoCs, and should be the child node
   of secure-monitor.
 
 properties:
   compatible:
     enum:
       - amlogic,meson-a1-pwrc
+      - amlogic,meson-s4-pwrc
 
   "#power-domain-cells":
     const: 1

Documentation/devicetree/bindings/power/mediatek,power-controller.yaml

@@ -26,7 +26,9 @@ properties:
       - mediatek,mt8167-power-controller
       - mediatek,mt8173-power-controller
       - mediatek,mt8183-power-controller
+      - mediatek,mt8186-power-controller
       - mediatek,mt8192-power-controller
+      - mediatek,mt8195-power-controller
 
   '#power-domain-cells':
     const: 1
@@ -64,6 +66,7 @@ patternProperties:
               "include/dt-bindings/power/mt8173-power.h" - for MT8173 type power domain.
               "include/dt-bindings/power/mt8183-power.h" - for MT8183 type power domain.
               "include/dt-bindings/power/mt8192-power.h" - for MT8192 type power domain.
+              "include/dt-bindings/power/mt8195-power.h" - for MT8195 type power domain.
         maxItems: 1
 
       clocks:

Documentation/devicetree/bindings/power/qcom,rpmpd.yaml

@@ -17,6 +17,7 @@ properties:
   compatible:
     enum:
       - qcom,mdm9607-rpmpd
+      - qcom,msm8226-rpmpd
       - qcom,msm8916-rpmpd
       - qcom,msm8939-rpmpd
       - qcom,msm8953-rpmpd

Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml

@@ -47,6 +47,10 @@ properties:
       - qcom,sm8350-cdsp-pas
       - qcom,sm8350-slpi-pas
       - qcom,sm8350-mpss-pas
+      - qcom,sm8450-adsp-pas
+      - qcom,sm8450-cdsp-pas
+      - qcom,sm8450-mpss-pas
+      - qcom,sm8450-slpi-pas
 
   reg:
     maxItems: 1
@@ -175,6 +179,10 @@ allOf:
               - qcom,sm8350-cdsp-pas
               - qcom,sm8350-slpi-pas
               - qcom,sm8350-mpss-pas
+              - qcom,sm8450-adsp-pas
+              - qcom,sm8450-cdsp-pas
+              - qcom,sm8450-slpi-pas
+              - qcom,sm8450-mpss-pas
     then:
       properties:
         clocks:
@@ -283,6 +291,9 @@ allOf:
               - qcom,sm8350-adsp-pas
               - qcom,sm8350-cdsp-pas
               - qcom,sm8350-slpi-pas
+              - qcom,sm8450-adsp-pas
+              - qcom,sm8450-cdsp-pas
+              - qcom,sm8450-slpi-pas
     then:
       properties:
         interrupts:
@@ -312,6 +323,7 @@ allOf:
               - qcom,sm6350-mpss-pas
               - qcom,sm8150-mpss-pas
               - qcom,sm8350-mpss-pas
+              - qcom,sm8450-mpss-pas
     then:
       properties:
         interrupts:
@@ -434,6 +446,7 @@ allOf:
               - qcom,sm6350-mpss-pas
               - qcom,sm8150-mpss-pas
               - qcom,sm8350-mpss-pas
+              - qcom,sm8450-mpss-pas
     then:
       properties:
         power-domains:
@@ -458,6 +471,8 @@ allOf:
               - qcom,sm8250-slpi-pas
               - qcom,sm8350-adsp-pas
               - qcom,sm8350-slpi-pas
+              - qcom,sm8450-adsp-pas
+              - qcom,sm8450-slpi-pas
     then:
       properties:
         power-domains:
@@ -475,6 +490,7 @@ allOf:
           contains:
             enum:
               - qcom,sm8350-cdsp-pas
+              - qcom,sm8450-cdsp-pas
     then:
       properties:
         power-domains:

Documentation/devicetree/bindings/soc/mediatek/pwrap.txt

@@ -27,6 +27,7 @@ Required properties in pwrap device node.
 	"mediatek,mt8135-pwrap" for MT8135 SoCs
 	"mediatek,mt8173-pwrap" for MT8173 SoCs
 	"mediatek,mt8183-pwrap" for MT8183 SoCs
+	"mediatek,mt8186-pwrap" for MT8186 SoCs
 	"mediatek,mt8195-pwrap" for MT8195 SoCs
 	"mediatek,mt8516-pwrap" for MT8516 SoCs
 - interrupts: IRQ for pwrap in SOC

arch/arm/mach-qcom/platsmp.c

@@ -357,8 +357,7 @@ static void __init qcom_smp_prepare_cpus(unsigned int max_cpus)
 {
 	int cpu;
 
-	if (qcom_scm_set_cold_boot_addr(secondary_startup_arm,
-					cpu_present_mask)) {
+	if (qcom_scm_set_cold_boot_addr(secondary_startup_arm)) {
 		for_each_present_cpu(cpu) {
 			if (cpu == smp_processor_id())
 				continue;

arch/arm/mach-spear/spear13xx.c

@@ -29,7 +29,7 @@ void __init spear13xx_l2x0_init(void)
 	/*
 	 * 512KB (64KB/way), 8-way associativity, parity supported
 	 *
-	 * FIXME: 9th bit, of Auxillary Controller register must be set
+	 * FIXME: 9th bit, of Auxiliary Controller register must be set
 	 * for some spear13xx devices for stable L2 operation.
 	 *
 	 * Enable Early BRESP, L2 prefetch for Instruction and Data,

drivers/bus/imx-weim.c

@@ -64,6 +64,11 @@ struct cs_timing_state {
 	struct cs_timing cs[MAX_CS_COUNT];
 };
 
+struct weim_priv {
+	void __iomem *base;
+	struct cs_timing_state timing_state;
+};
+
 static const struct of_device_id weim_id_table[] = {
 	/* i.MX1/21 */
 	{ .compatible = "fsl,imx1-weim", .data = &imx1_weim_devtype, },
@@ -128,21 +133,26 @@ err:
 }
 
 /* Parse and set the timing for this device. */
-static int weim_timing_setup(struct device *dev,
-			     struct device_node *np, void __iomem *base,
-			     const struct imx_weim_devtype *devtype,
-			     struct cs_timing_state *ts)
+static int weim_timing_setup(struct device *dev, struct device_node *np,
+			     const struct imx_weim_devtype *devtype)
 {
 	u32 cs_idx, value[MAX_CS_REGS_COUNT];
 	int i, ret;
 	int reg_idx, num_regs;
 	struct cs_timing *cst;
+	struct weim_priv *priv;
+	struct cs_timing_state *ts;
+	void __iomem *base;
 
 	if (WARN_ON(devtype->cs_regs_count > MAX_CS_REGS_COUNT))
 		return -EINVAL;
 	if (WARN_ON(devtype->cs_count > MAX_CS_COUNT))
 		return -EINVAL;
 
+	priv = dev_get_drvdata(dev);
+	base = priv->base;
+	ts = &priv->timing_state;
+
 	ret = of_property_read_u32_array(np, "fsl,weim-cs-timing",
 					 value, devtype->cs_regs_count);
 	if (ret)
@@ -189,14 +199,15 @@ static int weim_timing_setup(struct device *dev,
 	return 0;
 }
 
-static int weim_parse_dt(struct platform_device *pdev, void __iomem *base)
+static int weim_parse_dt(struct platform_device *pdev)
 {
 	const struct of_device_id *of_id = of_match_device(weim_id_table,
 							   &pdev->dev);
 	const struct imx_weim_devtype *devtype = of_id->data;
 	struct device_node *child;
 	int ret, have_child = 0;
-	struct cs_timing_state ts = {};
+	struct weim_priv *priv;
+	void __iomem *base;
 	u32 reg;
 
 	if (devtype == &imx50_weim_devtype) {
@@ -205,6 +216,9 @@ static int weim_parse_dt(struct platform_device *pdev, void __iomem *base)
 			return ret;
 	}
 
+	priv = dev_get_drvdata(&pdev->dev);
+	base = priv->base;
+
 	if (of_property_read_bool(pdev->dev.of_node, "fsl,burst-clk-enable")) {
 		if (devtype->wcr_bcm) {
 			reg = readl(base + devtype->wcr_offset);
@@ -229,7 +243,7 @@ static int weim_parse_dt(struct platform_device *pdev, void __iomem *base)
 	}
 
 	for_each_available_child_of_node(pdev->dev.of_node, child) {
-		ret = weim_timing_setup(&pdev->dev, child, base, devtype, &ts);
+		ret = weim_timing_setup(&pdev->dev, child, devtype);
 		if (ret)
 			dev_warn(&pdev->dev, "%pOF set timing failed.\n",
 				child);
@@ -248,17 +262,25 @@ static int weim_parse_dt(struct platform_device *pdev, void __iomem *base)
 
 static int weim_probe(struct platform_device *pdev)
 {
+	struct weim_priv *priv;
 	struct resource *res;
 	struct clk *clk;
 	void __iomem *base;
 	int ret;
 
+	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
 	/* get the resource */
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	base = devm_ioremap_resource(&pdev->dev, res);
 	if (IS_ERR(base))
 		return PTR_ERR(base);
 
+	priv->base = base;
+	dev_set_drvdata(&pdev->dev, priv);
+
 	/* get the clock */
 	clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(clk))
@@ -269,7 +291,7 @@ static int weim_probe(struct platform_device *pdev)
 		return ret;
 
 	/* parse the device node */
-	ret = weim_parse_dt(pdev, base);
+	ret = weim_parse_dt(pdev);
 	if (ret)
 		clk_disable_unprepare(clk);
 	else
@@ -278,6 +300,81 @@ static int weim_probe(struct platform_device *pdev)
 	return ret;
 }
 
+#if IS_ENABLED(CONFIG_OF_DYNAMIC)
+static int of_weim_notify(struct notifier_block *nb, unsigned long action,
+			  void *arg)
+{
+	const struct imx_weim_devtype *devtype;
+	struct of_reconfig_data *rd = arg;
+	const struct of_device_id *of_id;
+	struct platform_device *pdev;
+	int ret = NOTIFY_OK;
+
+	switch (of_reconfig_get_state_change(action, rd)) {
+	case OF_RECONFIG_CHANGE_ADD:
+		of_id = of_match_node(weim_id_table, rd->dn->parent);
+		if (!of_id)
+			return NOTIFY_OK; /* not for us */
+
+		devtype = of_id->data;
+
+		pdev = of_find_device_by_node(rd->dn->parent);
+		if (!pdev) {
+			pr_err("%s: could not find platform device for '%pOF'\n",
+				__func__, rd->dn->parent);
+
+			return notifier_from_errno(-EINVAL);
+		}
+
+		if (weim_timing_setup(&pdev->dev, rd->dn, devtype))
+			dev_warn(&pdev->dev,
+				 "Failed to setup timing for '%pOF'\n", rd->dn);
+
+		if (!of_node_check_flag(rd->dn, OF_POPULATED)) {
+			if (!of_platform_device_create(rd->dn, NULL, &pdev->dev)) {
+				dev_err(&pdev->dev,
+					"Failed to create child device '%pOF'\n",
+					rd->dn);
+				ret = notifier_from_errno(-EINVAL);
+			}
+		}
+
+		platform_device_put(pdev);
+
+		break;
+	case OF_RECONFIG_CHANGE_REMOVE:
+		if (!of_node_check_flag(rd->dn, OF_POPULATED))
+			return NOTIFY_OK; /* device already destroyed */
+
+		of_id = of_match_node(weim_id_table, rd->dn->parent);
+		if (!of_id)
+			return NOTIFY_OK; /* not for us */
+
+		pdev = of_find_device_by_node(rd->dn);
+		if (!pdev) {
+			dev_err(&pdev->dev,
+				"Could not find platform device for '%pOF'\n",
+				rd->dn);
+
+			ret = notifier_from_errno(-EINVAL);
+		} else {
+			of_platform_device_destroy(&pdev->dev, NULL);
+			platform_device_put(pdev);
+		}
+
+		break;
+	default:
+		break;
+	}
+
+	return ret;
+}
+
+struct notifier_block weim_of_notifier = {
+	.notifier_call = of_weim_notify,
+};
+#endif /* IS_ENABLED(CONFIG_OF_DYNAMIC) */
+
 static struct platform_driver weim_driver = {
 	.driver = {
 		.name		= "imx-weim",
@@ -285,7 +382,27 @@ static struct platform_driver weim_driver = {
 	},
 	.probe = weim_probe,
 };
-module_platform_driver(weim_driver);
+
+static int __init weim_init(void)
+{
+#if IS_ENABLED(CONFIG_OF_DYNAMIC)
+	WARN_ON(of_reconfig_notifier_register(&weim_of_notifier));
+#endif /* IS_ENABLED(CONFIG_OF_DYNAMIC) */
+
+	return platform_driver_register(&weim_driver);
+}
+module_init(weim_init);
+
+static void __exit weim_exit(void)
+{
+#if IS_ENABLED(CONFIG_OF_DYNAMIC)
+	of_reconfig_notifier_unregister(&weim_of_notifier);
+#endif /* IS_ENABLED(CONFIG_OF_DYNAMIC) */
+
+	return platform_driver_unregister(&weim_driver);
+
+}
+module_exit(weim_exit);
 
 MODULE_AUTHOR("Freescale Semiconductor Inc.");
 MODULE_DESCRIPTION("i.MX EIM Controller Driver");

drivers/char/hw_random/optee-rng.c

@@ -145,10 +145,10 @@ static int optee_rng_init(struct hwrng *rng)
 	struct optee_rng_private *pvt_data = to_optee_rng_private(rng);
 	struct tee_shm *entropy_shm_pool = NULL;
 
-	entropy_shm_pool = tee_shm_alloc(pvt_data->ctx, MAX_ENTROPY_REQ_SZ,
-					 TEE_SHM_MAPPED | TEE_SHM_DMA_BUF);
+	entropy_shm_pool = tee_shm_alloc_kernel_buf(pvt_data->ctx,
+						    MAX_ENTROPY_REQ_SZ);
 	if (IS_ERR(entropy_shm_pool)) {
-		dev_err(pvt_data->dev, "tee_shm_alloc failed\n");
+		dev_err(pvt_data->dev, "tee_shm_alloc_kernel_buf failed\n");
 		return PTR_ERR(entropy_shm_pool);
 	}
 

drivers/clk/clk-scmi.c

@@ -2,7 +2,7 @@
 /*
  * System Control and Power Interface (SCMI) Protocol based clock driver
  *
- * Copyright (C) 2018-2021 ARM Ltd.
+ * Copyright (C) 2018-2022 ARM Ltd.
  */
 
 #include <linux/clk-provider.h>
@@ -88,21 +88,51 @@ static void scmi_clk_disable(struct clk_hw *hw)
 	scmi_proto_clk_ops->disable(clk->ph, clk->id);
 }
 
+static int scmi_clk_atomic_enable(struct clk_hw *hw)
+{
+	struct scmi_clk *clk = to_scmi_clk(hw);
+
+	return scmi_proto_clk_ops->enable_atomic(clk->ph, clk->id);
+}
+
+static void scmi_clk_atomic_disable(struct clk_hw *hw)
+{
+	struct scmi_clk *clk = to_scmi_clk(hw);
+
+	scmi_proto_clk_ops->disable_atomic(clk->ph, clk->id);
+}
+
+/*
+ * We can provide enable/disable atomic callbacks only if the underlying SCMI
+ * transport for an SCMI instance is configured to handle SCMI commands in an
+ * atomic manner.
+ *
+ * When no SCMI atomic transport support is available we instead provide only
+ * the prepare/unprepare API, as allowed by the clock framework when atomic
+ * calls are not available.
+ *
+ * Two distinct sets of clk_ops are provided since we could have multiple SCMI
+ * instances with different underlying transport quality, so they cannot be
+ * shared.
+ */
 static const struct clk_ops scmi_clk_ops = {
 	.recalc_rate = scmi_clk_recalc_rate,
 	.round_rate = scmi_clk_round_rate,
 	.set_rate = scmi_clk_set_rate,
-	/*
-	 * We can't provide enable/disable callback as we can't perform the same
-	 * in atomic context. Since the clock framework provides standard API
-	 * clk_prepare_enable that helps cases using clk_enable in non-atomic
-	 * context, it should be fine providing prepare/unprepare.
-	 */
 	.prepare = scmi_clk_enable,
 	.unprepare = scmi_clk_disable,
 };
 
-static int scmi_clk_ops_init(struct device *dev, struct scmi_clk *sclk)
+static const struct clk_ops scmi_atomic_clk_ops = {
+	.recalc_rate = scmi_clk_recalc_rate,
+	.round_rate = scmi_clk_round_rate,
+	.set_rate = scmi_clk_set_rate,
+	.enable = scmi_clk_atomic_enable,
+	.disable = scmi_clk_atomic_disable,
+};
+
+static int scmi_clk_ops_init(struct device *dev, struct scmi_clk *sclk,
+			     const struct clk_ops *scmi_ops)
 {
 	int ret;
 	unsigned long min_rate, max_rate;
@@ -110,7 +140,7 @@ static int scmi_clk_ops_init(struct device *dev, struct scmi_clk *sclk)
 	struct clk_init_data init = {
 		.flags = CLK_GET_RATE_NOCACHE,
 		.num_parents = 0,
-		.ops = &scmi_clk_ops,
+		.ops = scmi_ops,
 		.name = sclk->info->name,
 	};
 
@@ -139,6 +169,8 @@ static int scmi_clk_ops_init(struct device *dev, struct scmi_clk *sclk)
 static int scmi_clocks_probe(struct scmi_device *sdev)
 {
 	int idx, count, err;
+	unsigned int atomic_threshold;
+	bool is_atomic;
 	struct clk_hw **hws;
 	struct clk_hw_onecell_data *clk_data;
 	struct device *dev = &sdev->dev;
@@ -168,8 +200,11 @@ static int scmi_clocks_probe(struct scmi_device *sdev)
 	clk_data->num = count;
 	hws = clk_data->hws;
 
+	is_atomic = handle->is_transport_atomic(handle, &atomic_threshold);
+
 	for (idx = 0; idx < count; idx++) {
 		struct scmi_clk *sclk;
+		const struct clk_ops *scmi_ops;
 
 		sclk = devm_kzalloc(dev, sizeof(*sclk), GFP_KERNEL);
 		if (!sclk)
@@ -184,13 +219,27 @@ static int scmi_clocks_probe(struct scmi_device *sdev)
 		sclk->id = idx;
 		sclk->ph = ph;
 
-		err = scmi_clk_ops_init(dev, sclk);
+		/*
+		 * Note that when transport is atomic but SCMI protocol did not
+		 * specify (or support) an enable_latency associated with a
+		 * clock, we default to use atomic operations mode.
+		 */
+		if (is_atomic &&
+		    sclk->info->enable_latency <= atomic_threshold)
+			scmi_ops = &scmi_atomic_clk_ops;
+		else
+			scmi_ops = &scmi_clk_ops;
+
+		err = scmi_clk_ops_init(dev, sclk, scmi_ops);
 		if (err) {
 			dev_err(dev, "failed to register clock %d\n", idx);
 			devm_kfree(dev, sclk);
 			hws[idx] = NULL;
 		} else {
-			dev_dbg(dev, "Registered clock:%s\n", sclk->info->name);
+			dev_dbg(dev, "Registered clock:%s%s\n",
+				sclk->info->name,
+				scmi_ops == &scmi_atomic_clk_ops ?
+				" (atomic ops)" : "");
 			hws[idx] = &sclk->hw;
 		}
 	}

drivers/clk/samsung/Kconfig

@@ -11,6 +11,7 @@ config COMMON_CLK_SAMSUNG
 	select EXYNOS_5410_COMMON_CLK if ARM && SOC_EXYNOS5410
 	select EXYNOS_5420_COMMON_CLK if ARM && SOC_EXYNOS5420
 	select EXYNOS_ARM64_COMMON_CLK if ARM64 && ARCH_EXYNOS
+	select TESLA_FSD_COMMON_CLK if ARM64 && ARCH_TESLA_FSD
 
 config S3C64XX_COMMON_CLK
 	bool "Samsung S3C64xx clock controller support" if COMPILE_TEST
@@ -124,3 +125,11 @@ config S3C2443_COMMON_CLK
 	help
 	  Support for the clock controller present on the Samsung
 	  S3C2416/S3C2443 SoCs. Choose Y here only if you build for this SoC.
+
+config TESLA_FSD_COMMON_CLK
+	bool "Tesla FSD clock controller support" if COMPILE_TEST
+	depends on COMMON_CLK_SAMSUNG
+	depends on EXYNOS_ARM64_COMMON_CLK
+	help
+	  Support for the clock controller present on the Tesla FSD SoC.
+	  Choose Y here only if you build for this SoC.

drivers/clk/samsung/Makefile

@@ -26,3 +26,4 @@ obj-$(CONFIG_S3C2412_COMMON_CLK)+= clk-s3c2412.o
 obj-$(CONFIG_S3C2443_COMMON_CLK)+= clk-s3c2443.o
 obj-$(CONFIG_S3C64XX_COMMON_CLK)	+= clk-s3c64xx.o
 obj-$(CONFIG_S5PV210_COMMON_CLK)	+= clk-s5pv210.o clk-s5pv210-audss.o
+obj-$(CONFIG_TESLA_FSD_COMMON_CLK)	+= clk-fsd.o

drivers/clk/samsung/clk-pll.c

@@ -1469,6 +1469,7 @@ static void __init _samsung_clk_register_pll(struct samsung_clk_provider *ctx,
 	case pll_1450x:
 	case pll_1451x:
 	case pll_1452x:
+	case pll_142xx:
 		pll->enable_offs = PLL35XX_ENABLE_SHIFT;
 		pll->lock_offs = PLL35XX_LOCK_STAT_SHIFT;
 		if (!pll->rate_table)

drivers/clk/samsung/clk-pll.h

@@ -39,6 +39,7 @@ enum samsung_pll_type {
 	pll_1460x,
 	pll_0822x,
 	pll_0831x,
+	pll_142xx,
 };
 
 #define PLL_RATE(_fin, _m, _p, _s, _k, _ks) \

drivers/cpuidle/cpuidle-qcom-spm.c

@@ -122,10 +122,6 @@ static int spm_cpuidle_register(struct device *cpuidle_dev, int cpu)
 	if (ret <= 0)
 		return ret ? : -ENODEV;
 
-	ret = qcom_scm_set_warm_boot_addr(cpu_resume_arm, cpumask_of(cpu));
-	if (ret)
-		return ret;
-
 	return cpuidle_register(&data->cpuidle_driver, NULL);
 }
 
@@ -136,6 +132,10 @@ static int spm_cpuidle_drv_probe(struct platform_device *pdev)
 	if (!qcom_scm_is_available())
 		return -EPROBE_DEFER;
 
+	ret = qcom_scm_set_warm_boot_addr(cpu_resume_arm);
+	if (ret)
+		return dev_err_probe(&pdev->dev, ret, "set warm boot addr failed");
+
 	for_each_possible_cpu(cpu) {
 		ret = spm_cpuidle_register(&pdev->dev, cpu);
 		if (ret && ret != -ENODEV) {
@@ -155,6 +155,22 @@ static struct platform_driver spm_cpuidle_driver = {
 	},
 };
 
+static bool __init qcom_spm_find_any_cpu(void)
+{
+	struct device_node *cpu_node, *saw_node;
+
+	for_each_of_cpu_node(cpu_node) {
+		saw_node = of_parse_phandle(cpu_node, "qcom,saw", 0);
+		if (of_device_is_available(saw_node)) {
+			of_node_put(saw_node);
+			of_node_put(cpu_node);
+			return true;
+		}
+		of_node_put(saw_node);
+	}
+	return false;
+}
+
 static int __init qcom_spm_cpuidle_init(void)
 {
 	struct platform_device *pdev;
@@ -164,6 +180,10 @@ static int __init qcom_spm_cpuidle_init(void)
 	if (ret)
 		return ret;
 
+	/* Make sure there is actually any CPU managed by the SPM */
+	if (!qcom_spm_find_any_cpu())
+		return 0;
+
 	pdev = platform_device_register_simple("qcom-spm-cpuidle",
 					       -1, NULL, 0);
 	if (IS_ERR(pdev)) {

drivers/firmware/arm_scmi/Kconfig

@@ -54,6 +54,18 @@ config ARM_SCMI_TRANSPORT_MAILBOX
 	  If you want the ARM SCMI PROTOCOL stack to include support for a
 	  transport based on mailboxes, answer Y.
 
+config ARM_SCMI_TRANSPORT_OPTEE
+	bool "SCMI transport based on OP-TEE service"
+	depends on OPTEE=y || OPTEE=ARM_SCMI_PROTOCOL
+	select ARM_SCMI_HAVE_TRANSPORT
+	select ARM_SCMI_HAVE_SHMEM
+	default y
+	help
+	  This enables the OP-TEE service based transport for SCMI.
+
+	  If you want the ARM SCMI PROTOCOL stack to include support for a
+	  transport based on OP-TEE SCMI service, answer Y.
+
 config ARM_SCMI_TRANSPORT_SMC
 	bool "SCMI transport based on SMC"
 	depends on HAVE_ARM_SMCCC_DISCOVERY
@@ -66,6 +78,20 @@ config ARM_SCMI_TRANSPORT_SMC
 	  If you want the ARM SCMI PROTOCOL stack to include support for a
 	  transport based on SMC, answer Y.
 
+config ARM_SCMI_TRANSPORT_SMC_ATOMIC_ENABLE
+	bool "Enable atomic mode support for SCMI SMC transport"
+	depends on ARM_SCMI_TRANSPORT_SMC
+	help
+	  Enable support of atomic operation for SCMI SMC based transport.
+
+	  If you want the SCMI SMC based transport to operate in atomic
+	  mode, avoiding any kind of sleeping behaviour for selected
+	  transactions on the TX path, answer Y.
+	  Enabling atomic mode operations allows any SCMI driver using this
+	  transport to optionally ask for atomic SCMI transactions and operate
+	  in atomic context too, at the price of using a number of busy-waiting
+	  primitives all over instead. If unsure say N.
+
 config ARM_SCMI_TRANSPORT_VIRTIO
 	bool "SCMI transport based on VirtIO"
 	depends on VIRTIO=y || VIRTIO=ARM_SCMI_PROTOCOL
@@ -77,6 +103,36 @@ config ARM_SCMI_TRANSPORT_VIRTIO
 	  If you want the ARM SCMI PROTOCOL stack to include support for a
 	  transport based on VirtIO, answer Y.
 
+config ARM_SCMI_TRANSPORT_VIRTIO_VERSION1_COMPLIANCE
+	bool "SCMI VirtIO transport Version 1 compliance"
+	depends on ARM_SCMI_TRANSPORT_VIRTIO
+	default y
+	help
+	  This enforces strict compliance with VirtIO Version 1 specification.
+
+	  If you want the ARM SCMI VirtIO transport layer to refuse to work
+	  with Legacy VirtIO backends and instead support only VirtIO Version 1
+	  devices (or above), answer Y.
+
+	  If you want instead to support also old Legacy VirtIO backends (like
+	  the ones implemented by kvmtool) and let the core Kernel VirtIO layer
+	  take care of the needed conversions, say N.
+
+config ARM_SCMI_TRANSPORT_VIRTIO_ATOMIC_ENABLE
+	bool "Enable atomic mode for SCMI VirtIO transport"
+	depends on ARM_SCMI_TRANSPORT_VIRTIO
+	help
+	  Enable support of atomic operation for SCMI VirtIO based transport.
+
+	  If you want the SCMI VirtIO based transport to operate in atomic
+	  mode, avoiding any kind of sleeping behaviour for selected
+	  transactions on the TX path, answer Y.
+
+	  Enabling atomic mode operations allows any SCMI driver using this
+	  transport to optionally ask for atomic SCMI transactions and operate
+	  in atomic context too, at the price of using a number of busy-waiting
+	  primitives all over instead. If unsure say N.
+
 endif #ARM_SCMI_PROTOCOL
 
 config ARM_SCMI_POWER_DOMAIN

drivers/firmware/arm_scmi/Makefile

@@ -6,8 +6,16 @@ scmi-transport-$(CONFIG_ARM_SCMI_TRANSPORT_MAILBOX) += mailbox.o
 scmi-transport-$(CONFIG_ARM_SCMI_TRANSPORT_SMC) += smc.o
 scmi-transport-$(CONFIG_ARM_SCMI_HAVE_MSG) += msg.o
 scmi-transport-$(CONFIG_ARM_SCMI_TRANSPORT_VIRTIO) += virtio.o
+scmi-transport-$(CONFIG_ARM_SCMI_TRANSPORT_OPTEE) += optee.o
 scmi-protocols-y = base.o clock.o perf.o power.o reset.o sensors.o system.o voltage.o
 scmi-module-objs := $(scmi-bus-y) $(scmi-driver-y) $(scmi-protocols-y) \
 		    $(scmi-transport-y)
 obj-$(CONFIG_ARM_SCMI_PROTOCOL) += scmi-module.o
 obj-$(CONFIG_ARM_SCMI_POWER_DOMAIN) += scmi_pm_domain.o
+
+ifeq ($(CONFIG_THUMB2_KERNEL)$(CONFIG_CC_IS_CLANG),yy)
+# The use of R7 in the SMCCC conflicts with the compiler's use of R7 as a frame
+# pointer in Thumb2 mode, which is forcibly enabled by Clang when profiling
+# hooks are inserted via the -pg switch.
+CFLAGS_REMOVE_smc.o += $(CC_FLAGS_FTRACE)
+endif

drivers/firmware/arm_scmi/clock.c

@@ -27,7 +27,8 @@ struct scmi_msg_resp_clock_protocol_attributes {
 struct scmi_msg_resp_clock_attributes {
 	__le32 attributes;
 #define	CLOCK_ENABLE	BIT(0)
-	    u8 name[SCMI_MAX_STR_SIZE];
+	u8 name[SCMI_MAX_STR_SIZE];
+	__le32 clock_enable_latency;
 };
 
 struct scmi_clock_set_config {
@@ -116,10 +117,15 @@ static int scmi_clock_attributes_get(const struct scmi_protocol_handle *ph,
 	attr = t->rx.buf;
 
 	ret = ph->xops->do_xfer(ph, t);
-	if (!ret)
+	if (!ret) {
 		strlcpy(clk->name, attr->name, SCMI_MAX_STR_SIZE);
-	else
+		/* Is optional field clock_enable_latency provided ? */
+		if (t->rx.len == sizeof(*attr))
+			clk->enable_latency =
+				le32_to_cpu(attr->clock_enable_latency);
+	} else {
 		clk->name[0] = '\0';
+	}
 
 	ph->xops->xfer_put(ph, t);
 	return ret;
@@ -273,7 +279,7 @@ static int scmi_clock_rate_set(const struct scmi_protocol_handle *ph,
 
 static int
 scmi_clock_config_set(const struct scmi_protocol_handle *ph, u32 clk_id,
-		      u32 config)
+		      u32 config, bool atomic)
 {
 	int ret;
 	struct scmi_xfer *t;
@@ -284,6 +290,8 @@ scmi_clock_config_set(const struct scmi_protocol_handle *ph, u32 clk_id,
 	if (ret)
 		return ret;
 
+	t->hdr.poll_completion = atomic;
+
 	cfg = t->tx.buf;
 	cfg->id = cpu_to_le32(clk_id);
 	cfg->attributes = cpu_to_le32(config);
@@ -296,12 +304,24 @@ scmi_clock_config_set(const struct scmi_protocol_handle *ph, u32 clk_id,
 
 static int scmi_clock_enable(const struct scmi_protocol_handle *ph, u32 clk_id)
 {
-	return scmi_clock_config_set(ph, clk_id, CLOCK_ENABLE);
+	return scmi_clock_config_set(ph, clk_id, CLOCK_ENABLE, false);
 }
 
 static int scmi_clock_disable(const struct scmi_protocol_handle *ph, u32 clk_id)
 {
-	return scmi_clock_config_set(ph, clk_id, 0);
+	return scmi_clock_config_set(ph, clk_id, 0, false);
+}
+
+static int scmi_clock_enable_atomic(const struct scmi_protocol_handle *ph,
+				    u32 clk_id)
+{
+	return scmi_clock_config_set(ph, clk_id, CLOCK_ENABLE, true);
+}
+
+static int scmi_clock_disable_atomic(const struct scmi_protocol_handle *ph,
+				     u32 clk_id)
+{
+	return scmi_clock_config_set(ph, clk_id, 0, true);
 }
 
 static int scmi_clock_count_get(const struct scmi_protocol_handle *ph)
@@ -330,6 +350,8 @@ static const struct scmi_clk_proto_ops clk_proto_ops = {
 	.rate_set = scmi_clock_rate_set,
 	.enable = scmi_clock_enable,
 	.disable = scmi_clock_disable,
+	.enable_atomic = scmi_clock_enable_atomic,
+	.disable_atomic = scmi_clock_disable_atomic,
 };
 
 static int scmi_clock_protocol_init(const struct scmi_protocol_handle *ph)

drivers/firmware/arm_scmi/common.h

@@ -339,11 +339,16 @@ void scmi_protocol_release(const struct scmi_handle *handle, u8 protocol_id);
  * @dev: Reference to device in the SCMI hierarchy corresponding to this
  *	 channel
  * @handle: Pointer to SCMI entity handle
+ * @no_completion_irq: Flag to indicate that this channel has no completion
+ *		       interrupt mechanism for synchronous commands.
+ *		       This can be dynamically set by transports at run-time
+ *		       inside their provided .chan_setup().
  * @transport_info: Transport layer related information
  */
 struct scmi_chan_info {
 	struct device *dev;
 	struct scmi_handle *handle;
+	bool no_completion_irq;
 	void *transport_info;
 };
 
@@ -373,7 +378,8 @@ struct scmi_transport_ops {
 	unsigned int (*get_max_msg)(struct scmi_chan_info *base_cinfo);
 	int (*send_message)(struct scmi_chan_info *cinfo,
 			    struct scmi_xfer *xfer);
-	void (*mark_txdone)(struct scmi_chan_info *cinfo, int ret);
+	void (*mark_txdone)(struct scmi_chan_info *cinfo, int ret,
+			    struct scmi_xfer *xfer);
 	void (*fetch_response)(struct scmi_chan_info *cinfo,
 			       struct scmi_xfer *xfer);
 	void (*fetch_notification)(struct scmi_chan_info *cinfo,
@@ -402,6 +408,18 @@ struct scmi_device *scmi_child_dev_find(struct device *parent,
  *	be pending simultaneously in the system. May be overridden by the
  *	get_max_msg op.
  * @max_msg_size: Maximum size of data per message that can be handled.
+ * @force_polling: Flag to force this whole transport to use SCMI core polling
+ *		   mechanism instead of completion interrupts even if available.
+ * @sync_cmds_completed_on_ret: Flag to indicate that the transport assures
+ *				synchronous-command messages are atomically
+ *				completed on .send_message: no need to poll
+ *				actively waiting for a response.
+ *				Used by core internally only when polling is
+ *				selected as a waiting for reply method: i.e.
+ *				if a completion irq was found use that anyway.
+ * @atomic_enabled: Flag to indicate that this transport, which is assured not
+ *		    to sleep anywhere on the TX path, can be used in atomic mode
+ *		    when requested.
  */
 struct scmi_desc {
 	int (*transport_init)(void);
@@ -410,6 +428,9 @@ struct scmi_desc {
 	int max_rx_timeout_ms;
 	int max_msg;
 	int max_msg_size;
+	const bool force_polling;
+	const bool sync_cmds_completed_on_ret;
+	const bool atomic_enabled;
 };
 
 #ifdef CONFIG_ARM_SCMI_TRANSPORT_MAILBOX
@@ -421,6 +442,9 @@ extern const struct scmi_desc scmi_smc_desc;
 #ifdef CONFIG_ARM_SCMI_TRANSPORT_VIRTIO
 extern const struct scmi_desc scmi_virtio_desc;
 #endif
+#ifdef CONFIG_ARM_SCMI_TRANSPORT_OPTEE
+extern const struct scmi_desc scmi_optee_desc;
+#endif
 
 void scmi_rx_callback(struct scmi_chan_info *cinfo, u32 msg_hdr, void *priv);
 void scmi_free_channel(struct scmi_chan_info *cinfo, struct idr *idr, int id);

drivers/firmware/arm_scmi/driver.c

@@ -131,6 +131,12 @@ struct scmi_protocol_instance {
  *	MAX_PROTOCOLS_IMP elements allocated by the base protocol
  * @active_protocols: IDR storing device_nodes for protocols actually defined
  *		      in the DT and confirmed as implemented by fw.
+ * @atomic_threshold: Optional system wide DT-configured threshold, expressed
+ *		      in microseconds, for atomic operations.
+ *		      Only SCMI synchronous commands reported by the platform
+ *		      to have an execution latency lesser-equal to the threshold
+ *		      should be considered for atomic mode operation: such
+ *		      decision is finally left up to the SCMI drivers.
  * @notify_priv: Pointer to private data structure specific to notifications.
  * @node: List head
  * @users: Number of users of this instance
@@ -149,6 +155,7 @@ struct scmi_info {
 	struct mutex protocols_mtx;
 	u8 *protocols_imp;
 	struct idr active_protocols;
+	unsigned int atomic_threshold;
 	void *notify_priv;
 	struct list_head node;
 	int users;
@@ -609,6 +616,25 @@ static inline void scmi_clear_channel(struct scmi_info *info,
 		info->desc->ops->clear_channel(cinfo);
 }
 
+static inline bool is_polling_required(struct scmi_chan_info *cinfo,
+				       struct scmi_info *info)
+{
+	return cinfo->no_completion_irq || info->desc->force_polling;
+}
+
+static inline bool is_transport_polling_capable(struct scmi_info *info)
+{
+	return info->desc->ops->poll_done ||
+		info->desc->sync_cmds_completed_on_ret;
+}
+
+static inline bool is_polling_enabled(struct scmi_chan_info *cinfo,
+				      struct scmi_info *info)
+{
+	return is_polling_required(cinfo, info) &&
+		is_transport_polling_capable(info);
+}
+
 static void scmi_handle_notification(struct scmi_chan_info *cinfo,
 				     u32 msg_hdr, void *priv)
 {
@@ -629,7 +655,8 @@ static void scmi_handle_notification(struct scmi_chan_info *cinfo,
 
 	unpack_scmi_header(msg_hdr, &xfer->hdr);
 	if (priv)
-		xfer->priv = priv;
+		/* Ensure order between xfer->priv store and following ops */
+		smp_store_mb(xfer->priv, priv);
 	info->desc->ops->fetch_notification(cinfo, info->desc->max_msg_size,
 					    xfer);
 	scmi_notify(cinfo->handle, xfer->hdr.protocol_id,
@@ -661,7 +688,8 @@ static void scmi_handle_response(struct scmi_chan_info *cinfo,
 		xfer->rx.len = info->desc->max_msg_size;
 
 	if (priv)
-		xfer->priv = priv;
+		/* Ensure order between xfer->priv store and following ops */
+		smp_store_mb(xfer->priv, priv);
 	info->desc->ops->fetch_response(cinfo, xfer);
 
 	trace_scmi_rx_done(xfer->transfer_id, xfer->hdr.id,
@@ -724,8 +752,6 @@ static void xfer_put(const struct scmi_protocol_handle *ph,
 	__scmi_xfer_put(&info->tx_minfo, xfer);
 }
 
-#define SCMI_MAX_POLL_TO_NS	(100 * NSEC_PER_USEC)
-
 static bool scmi_xfer_done_no_timeout(struct scmi_chan_info *cinfo,
 				      struct scmi_xfer *xfer, ktime_t stop)
 {
@@ -740,6 +766,79 @@ static bool scmi_xfer_done_no_timeout(struct scmi_chan_info *cinfo,
 	       ktime_after(ktime_get(), stop);
 }
 
+/**
+ * scmi_wait_for_message_response  - An helper to group all the possible ways of
+ * waiting for a synchronous message response.
+ *
+ * @cinfo: SCMI channel info
+ * @xfer: Reference to the transfer being waited for.
+ *
+ * Chooses waiting strategy (sleep-waiting vs busy-waiting) depending on
+ * configuration flags like xfer->hdr.poll_completion.
+ *
+ * Return: 0 on Success, error otherwise.
+ */
+static int scmi_wait_for_message_response(struct scmi_chan_info *cinfo,
+					  struct scmi_xfer *xfer)
+{
+	struct scmi_info *info = handle_to_scmi_info(cinfo->handle);
+	struct device *dev = info->dev;
+	int ret = 0, timeout_ms = info->desc->max_rx_timeout_ms;
+
+	trace_scmi_xfer_response_wait(xfer->transfer_id, xfer->hdr.id,
+				      xfer->hdr.protocol_id, xfer->hdr.seq,
+				      timeout_ms,
+				      xfer->hdr.poll_completion);
+
+	if (xfer->hdr.poll_completion) {
+		/*
+		 * Real polling is needed only if transport has NOT declared
+		 * itself to support synchronous commands replies.
+		 */
+		if (!info->desc->sync_cmds_completed_on_ret) {
+			/*
+			 * Poll on xfer using transport provided .poll_done();
+			 * assumes no completion interrupt was available.
+			 */
+			ktime_t stop = ktime_add_ms(ktime_get(), timeout_ms);
+
+			spin_until_cond(scmi_xfer_done_no_timeout(cinfo,
+								  xfer, stop));
+			if (ktime_after(ktime_get(), stop)) {
+				dev_err(dev,
+					"timed out in resp(caller: %pS) - polling\n",
+					(void *)_RET_IP_);
+				ret = -ETIMEDOUT;
+			}
+		}
+
+		if (!ret) {
+			unsigned long flags;
+
+			/*
+			 * Do not fetch_response if an out-of-order delayed
+			 * response is being processed.
+			 */
+			spin_lock_irqsave(&xfer->lock, flags);
+			if (xfer->state == SCMI_XFER_SENT_OK) {
+				info->desc->ops->fetch_response(cinfo, xfer);
+				xfer->state = SCMI_XFER_RESP_OK;
+			}
+			spin_unlock_irqrestore(&xfer->lock, flags);
+		}
+	} else {
+		/* And we wait for the response. */
+		if (!wait_for_completion_timeout(&xfer->done,
+						 msecs_to_jiffies(timeout_ms))) {
+			dev_err(dev, "timed out in resp(caller: %pS)\n",
+				(void *)_RET_IP_);
+			ret = -ETIMEDOUT;
+		}
+	}
+
+	return ret;
+}
+
 /**
  * do_xfer() - Do one transfer
  *
@@ -754,18 +853,26 @@ static int do_xfer(const struct scmi_protocol_handle *ph,
 		   struct scmi_xfer *xfer)
 {
 	int ret;
-	int timeout;
 	const struct scmi_protocol_instance *pi = ph_to_pi(ph);
 	struct scmi_info *info = handle_to_scmi_info(pi->handle);
 	struct device *dev = info->dev;
 	struct scmi_chan_info *cinfo;
 
-	if (xfer->hdr.poll_completion && !info->desc->ops->poll_done) {
+	/* Check for polling request on custom command xfers at first */
+	if (xfer->hdr.poll_completion && !is_transport_polling_capable(info)) {
 		dev_warn_once(dev,
 			      "Polling mode is not supported by transport.\n");
 		return -EINVAL;
 	}
 
+	cinfo = idr_find(&info->tx_idr, pi->proto->id);
+	if (unlikely(!cinfo))
+		return -EINVAL;
+
+	/* True ONLY if also supported by transport. */
+	if (is_polling_enabled(cinfo, info))
+		xfer->hdr.poll_completion = true;
+
 	/*
 	 * Initialise protocol id now from protocol handle to avoid it being
 	 * overridden by mistake (or malice) by the protocol code mangling with
@@ -774,10 +881,6 @@ static int do_xfer(const struct scmi_protocol_handle *ph,
 	xfer->hdr.protocol_id = pi->proto->id;
 	reinit_completion(&xfer->done);
 
-	cinfo = idr_find(&info->tx_idr, xfer->hdr.protocol_id);
-	if (unlikely(!cinfo))
-		return -EINVAL;
-
 	trace_scmi_xfer_begin(xfer->transfer_id, xfer->hdr.id,
 			      xfer->hdr.protocol_id, xfer->hdr.seq,
 			      xfer->hdr.poll_completion);
@@ -798,41 +901,12 @@ static int do_xfer(const struct scmi_protocol_handle *ph,
 		return ret;
 	}
 
-	if (xfer->hdr.poll_completion) {
-		ktime_t stop = ktime_add_ns(ktime_get(), SCMI_MAX_POLL_TO_NS);
-
-		spin_until_cond(scmi_xfer_done_no_timeout(cinfo, xfer, stop));
-		if (ktime_before(ktime_get(), stop)) {
-			unsigned long flags;
-
-			/*
-			 * Do not fetch_response if an out-of-order delayed
-			 * response is being processed.
-			 */
-			spin_lock_irqsave(&xfer->lock, flags);
-			if (xfer->state == SCMI_XFER_SENT_OK) {
-				info->desc->ops->fetch_response(cinfo, xfer);
-				xfer->state = SCMI_XFER_RESP_OK;
-			}
-			spin_unlock_irqrestore(&xfer->lock, flags);
-		} else {
-			ret = -ETIMEDOUT;
-		}
-	} else {
-		/* And we wait for the response. */
-		timeout = msecs_to_jiffies(info->desc->max_rx_timeout_ms);
-		if (!wait_for_completion_timeout(&xfer->done, timeout)) {
-			dev_err(dev, "timed out in resp(caller: %pS)\n",
-				(void *)_RET_IP_);
-			ret = -ETIMEDOUT;
-		}
-	}
-
+	ret = scmi_wait_for_message_response(cinfo, xfer);
 	if (!ret && xfer->hdr.status)
 		ret = scmi_to_linux_errno(xfer->hdr.status);
 
 	if (info->desc->ops->mark_txdone)
-		info->desc->ops->mark_txdone(cinfo, ret);
+		info->desc->ops->mark_txdone(cinfo, ret, xfer);
 
 	trace_scmi_xfer_end(xfer->transfer_id, xfer->hdr.id,
 			    xfer->hdr.protocol_id, xfer->hdr.seq, ret);
@@ -858,6 +932,20 @@ static void reset_rx_to_maxsz(const struct scmi_protocol_handle *ph,
  * @ph: Pointer to SCMI protocol handle
  * @xfer: Transfer to initiate and wait for response
  *
+ * Using asynchronous commands in atomic/polling mode should be avoided since
+ * it could cause long busy-waiting here, so ignore polling for the delayed
+ * response and WARN if it was requested for this command transaction since
+ * upper layers should refrain from issuing such kind of requests.
+ *
+ * The only other option would have been to refrain from using any asynchronous
+ * command even if made available, when an atomic transport is detected, and
+ * instead forcibly use the synchronous version (thing that can be easily
+ * attained at the protocol layer), but this would also have led to longer
+ * stalls of the channel for synchronous commands and possibly timeouts.
+ * (in other words there is usually a good reason if a platform provides an
+ *  asynchronous version of a command and we should prefer to use it...just not
+ *  when using atomic/polling mode)
+ *
  * Return: -ETIMEDOUT in case of no delayed response, if transmit error,
  *	return corresponding error, else if all goes well, return 0.
  */
@@ -869,12 +957,24 @@ static int do_xfer_with_response(const struct scmi_protocol_handle *ph,
 
 	xfer->async_done = &async_response;
 
+	/*
+	 * Delayed responses should not be polled, so an async command should
+	 * not have been used when requiring an atomic/poll context; WARN and
+	 * perform instead a sleeping wait.
+	 * (Note Async + IgnoreDelayedResponses are sent via do_xfer)
+	 */
+	WARN_ON_ONCE(xfer->hdr.poll_completion);
+
 	ret = do_xfer(ph, xfer);
 	if (!ret) {
-		if (!wait_for_completion_timeout(xfer->async_done, timeout))
+		if (!wait_for_completion_timeout(xfer->async_done, timeout)) {
+			dev_err(ph->dev,
+				"timed out in delayed resp(caller: %pS)\n",
+				(void *)_RET_IP_);
 			ret = -ETIMEDOUT;
-		else if (xfer->hdr.status)
+		} else if (xfer->hdr.status) {
 			ret = scmi_to_linux_errno(xfer->hdr.status);
+		}
 	}
 
 	xfer->async_done = NULL;
@@ -1308,6 +1408,29 @@ static void scmi_devm_protocol_put(struct scmi_device *sdev, u8 protocol_id)
 	WARN_ON(ret);
 }
 
+/**
+ * scmi_is_transport_atomic  - Method to check if underlying transport for an
+ * SCMI instance is configured as atomic.
+ *
+ * @handle: A reference to the SCMI platform instance.
+ * @atomic_threshold: An optional return value for the system wide currently
+ *		      configured threshold for atomic operations.
+ *
+ * Return: True if transport is configured as atomic
+ */
+static bool scmi_is_transport_atomic(const struct scmi_handle *handle,
+				     unsigned int *atomic_threshold)
+{
+	bool ret;
+	struct scmi_info *info = handle_to_scmi_info(handle);
+
+	ret = info->desc->atomic_enabled && is_transport_polling_capable(info);
+	if (ret && atomic_threshold)
+		*atomic_threshold = info->atomic_threshold;
+
+	return ret;
+}
+
 static inline
 struct scmi_handle *scmi_handle_get_from_info_unlocked(struct scmi_info *info)
 {
@@ -1499,6 +1622,16 @@ static int scmi_chan_setup(struct scmi_info *info, struct device *dev,
 	if (ret)
 		return ret;
 
+	if (tx && is_polling_required(cinfo, info)) {
+		if (is_transport_polling_capable(info))
+			dev_info(dev,
+				 "Enabled polling mode TX channel - prot_id:%d\n",
+				 prot_id);
+		else
+			dev_warn(dev,
+				 "Polling mode NOT supported by transport.\n");
+	}
+
 idr_alloc:
 	ret = idr_alloc(idr, cinfo, prot_id, prot_id + 1, GFP_KERNEL);
 	if (ret != prot_id) {
@@ -1836,6 +1969,14 @@ static int scmi_probe(struct platform_device *pdev)
 	handle->devm_protocol_get = scmi_devm_protocol_get;
 	handle->devm_protocol_put = scmi_devm_protocol_put;
 
+	/* System wide atomic threshold for atomic ops .. if any */
+	if (!of_property_read_u32(np, "atomic-threshold-us",
+				  &info->atomic_threshold))
+		dev_info(dev,
+			 "SCMI System wide atomic threshold set to %d us\n",
+			 info->atomic_threshold);
+	handle->is_transport_atomic = scmi_is_transport_atomic;
+
 	if (desc->ops->link_supplier) {
 		ret = desc->ops->link_supplier(dev);
 		if (ret)
@@ -1853,6 +1994,10 @@ static int scmi_probe(struct platform_device *pdev)
 	if (scmi_notification_init(handle))
 		dev_err(dev, "SCMI Notifications NOT available.\n");
 
+	if (info->desc->atomic_enabled && !is_transport_polling_capable(info))
+		dev_err(dev,
+			"Transport is not polling capable. Atomic mode not supported.\n");
+
 	/*
 	 * Trigger SCMI Base protocol initialization.
 	 * It's mandatory and won't be ever released/deinit until the
@@ -1994,6 +2139,9 @@ static const struct of_device_id scmi_of_match[] = {
 #ifdef CONFIG_ARM_SCMI_TRANSPORT_MAILBOX
 	{ .compatible = "arm,scmi", .data = &scmi_mailbox_desc },
 #endif
+#ifdef CONFIG_ARM_SCMI_TRANSPORT_OPTEE
+	{ .compatible = "linaro,scmi-optee", .data = &scmi_optee_desc },
+#endif
 #ifdef CONFIG_ARM_SCMI_TRANSPORT_SMC
 	{ .compatible = "arm,scmi-smc", .data = &scmi_smc_desc},
 #endif

drivers/firmware/arm_scmi/mailbox.c

@@ -140,7 +140,8 @@ static int mailbox_send_message(struct scmi_chan_info *cinfo,
 	return ret;
 }
 
-static void mailbox_mark_txdone(struct scmi_chan_info *cinfo, int ret)
+static void mailbox_mark_txdone(struct scmi_chan_info *cinfo, int ret,
+				struct scmi_xfer *__unused)
 {
 	struct scmi_mailbox *smbox = cinfo->transport_info;
 

drivers/firmware/arm_scmi/optee.c

@@ -0,0 +1,567 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2019-2021 Linaro Ltd.
+ */
+
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/slab.h>
+#include <linux/tee_drv.h>
+#include <linux/uuid.h>
+#include <uapi/linux/tee.h>
+
+#include "common.h"
+
+#define SCMI_OPTEE_MAX_MSG_SIZE		128
+
+enum scmi_optee_pta_cmd {
+	/*
+	 * PTA_SCMI_CMD_CAPABILITIES - Get channel capabilities
+	 *
+	 * [out]    value[0].a: Capability bit mask (enum pta_scmi_caps)
+	 * [out]    value[0].b: Extended capabilities or 0
+	 */
+	PTA_SCMI_CMD_CAPABILITIES = 0,
+
+	/*
+	 * PTA_SCMI_CMD_PROCESS_SMT_CHANNEL - Process SCMI message in SMT buffer
+	 *
+	 * [in]     value[0].a: Channel handle
+	 *
+	 * Shared memory used for SCMI message/response exhange is expected
+	 * already identified and bound to channel handle in both SCMI agent
+	 * and SCMI server (OP-TEE) parts.
+	 * The memory uses SMT header to carry SCMI meta-data (protocol ID and
+	 * protocol message ID).
+	 */
+	PTA_SCMI_CMD_PROCESS_SMT_CHANNEL = 1,
+
+	/*
+	 * PTA_SCMI_CMD_PROCESS_SMT_CHANNEL_MESSAGE - Process SMT/SCMI message
+	 *
+	 * [in]     value[0].a: Channel handle
+	 * [in/out] memref[1]: Message/response buffer (SMT and SCMI payload)
+	 *
+	 * Shared memory used for SCMI message/response is a SMT buffer
+	 * referenced by param[1]. It shall be 128 bytes large to fit response
+	 * payload whatever message playload size.
+	 * The memory uses SMT header to carry SCMI meta-data (protocol ID and
+	 * protocol message ID).
+	 */
+	PTA_SCMI_CMD_PROCESS_SMT_CHANNEL_MESSAGE = 2,
+
+	/*
+	 * PTA_SCMI_CMD_GET_CHANNEL - Get channel handle
+	 *
+	 * SCMI shm information are 0 if agent expects to use OP-TEE regular SHM
+	 *
+	 * [in]     value[0].a: Channel identifier
+	 * [out]    value[0].a: Returned channel handle
+	 * [in]     value[0].b: Requested capabilities mask (enum pta_scmi_caps)
+	 */
+	PTA_SCMI_CMD_GET_CHANNEL = 3,
+};
+
+/*
+ * OP-TEE SCMI service capabilities bit flags (32bit)
+ *
+ * PTA_SCMI_CAPS_SMT_HEADER
+ * When set, OP-TEE supports command using SMT header protocol (SCMI shmem) in
+ * shared memory buffers to carry SCMI protocol synchronisation information.
+ */
+#define PTA_SCMI_CAPS_NONE		0
+#define PTA_SCMI_CAPS_SMT_HEADER	BIT(0)
+
+/**
+ * struct scmi_optee_channel - Description of an OP-TEE SCMI channel
+ *
+ * @channel_id: OP-TEE channel ID used for this transport
+ * @tee_session: TEE session identifier
+ * @caps: OP-TEE SCMI channel capabilities
+ * @mu: Mutex protection on channel access
+ * @cinfo: SCMI channel information
+ * @shmem: Virtual base address of the shared memory
+ * @tee_shm: Reference to TEE shared memory or NULL if using static shmem
+ * @link: Reference in agent's channel list
+ */
+struct scmi_optee_channel {
+	u32 channel_id;
+	u32 tee_session;
+	u32 caps;
+	struct mutex mu;
+	struct scmi_chan_info *cinfo;
+	struct scmi_shared_mem __iomem *shmem;
+	struct tee_shm *tee_shm;
+	struct list_head link;
+};
+
+/**
+ * struct scmi_optee_agent - OP-TEE transport private data
+ *
+ * @dev: Device used for communication with TEE
+ * @tee_ctx: TEE context used for communication
+ * @caps: Supported channel capabilities
+ * @mu: Mutex for protection of @channel_list
+ * @channel_list: List of all created channels for the agent
+ */
+struct scmi_optee_agent {
+	struct device *dev;
+	struct tee_context *tee_ctx;
+	u32 caps;
+	struct mutex mu;
+	struct list_head channel_list;
+};
+
+/* There can be only 1 SCMI service in OP-TEE we connect to */
+static struct scmi_optee_agent *scmi_optee_private;
+
+/* Forward reference to scmi_optee transport initialization */
+static int scmi_optee_init(void);
+
+/* Open a session toward SCMI OP-TEE service with REE_KERNEL identity */
+static int open_session(struct scmi_optee_agent *agent, u32 *tee_session)
+{
+	struct device *dev = agent->dev;
+	struct tee_client_device *scmi_pta = to_tee_client_device(dev);
+	struct tee_ioctl_open_session_arg arg = { };
+	int ret;
+
+	memcpy(arg.uuid, scmi_pta->id.uuid.b, TEE_IOCTL_UUID_LEN);
+	arg.clnt_login = TEE_IOCTL_LOGIN_REE_KERNEL;
+
+	ret = tee_client_open_session(agent->tee_ctx, &arg, NULL);
+	if (ret < 0 || arg.ret) {
+		dev_err(dev, "Can't open tee session: %d / %#x\n", ret, arg.ret);
+		return -EOPNOTSUPP;
+	}
+
+	*tee_session = arg.session;
+
+	return 0;
+}
+
+static void close_session(struct scmi_optee_agent *agent, u32 tee_session)
+{
+	tee_client_close_session(agent->tee_ctx, tee_session);
+}
+
+static int get_capabilities(struct scmi_optee_agent *agent)
+{
+	struct tee_ioctl_invoke_arg arg = { };
+	struct tee_param param[1] = { };
+	u32 caps;
+	u32 tee_session;
+	int ret;
+
+	ret = open_session(agent, &tee_session);
+	if (ret)
+		return ret;
+
+	arg.func = PTA_SCMI_CMD_CAPABILITIES;
+	arg.session = tee_session;
+	arg.num_params = 1;
+
+	param[0].attr = TEE_IOCTL_PARAM_ATTR_TYPE_VALUE_OUTPUT;
+
+	ret = tee_client_invoke_func(agent->tee_ctx, &arg, param);
+
+	close_session(agent, tee_session);
+
+	if (ret < 0 || arg.ret) {
+		dev_err(agent->dev, "Can't get capabilities: %d / %#x\n", ret, arg.ret);
+		return -EOPNOTSUPP;
+	}
+
+	caps = param[0].u.value.a;
+
+	if (!(caps & PTA_SCMI_CAPS_SMT_HEADER)) {
+		dev_err(agent->dev, "OP-TEE SCMI PTA doesn't support SMT\n");
+		return -EOPNOTSUPP;
+	}
+
+	agent->caps = caps;
+
+	return 0;
+}
+
+static int get_channel(struct scmi_optee_channel *channel)
+{
+	struct device *dev = scmi_optee_private->dev;
+	struct tee_ioctl_invoke_arg arg = { };
+	struct tee_param param[1] = { };
+	unsigned int caps = PTA_SCMI_CAPS_SMT_HEADER;
+	int ret;
+
+	arg.func = PTA_SCMI_CMD_GET_CHANNEL;
+	arg.session = channel->tee_session;
+	arg.num_params = 1;
+
+	param[0].attr = TEE_IOCTL_PARAM_ATTR_TYPE_VALUE_INOUT;
+	param[0].u.value.a = channel->channel_id;
+	param[0].u.value.b = caps;
+
+	ret = tee_client_invoke_func(scmi_optee_private->tee_ctx, &arg, param);
+
+	if (ret || arg.ret) {
+		dev_err(dev, "Can't get channel with caps %#x: %d / %#x\n", caps, ret, arg.ret);
+		return -EOPNOTSUPP;
+	}
+
+	/* From now on use channel identifer provided by OP-TEE SCMI service */
+	channel->channel_id = param[0].u.value.a;
+	channel->caps = caps;
+
+	return 0;
+}
+
+static int invoke_process_smt_channel(struct scmi_optee_channel *channel)
+{
+	struct tee_ioctl_invoke_arg arg = { };
+	struct tee_param param[2] = { };
+	int ret;
+
+	arg.session = channel->tee_session;
+	param[0].attr = TEE_IOCTL_PARAM_ATTR_TYPE_VALUE_INPUT;
+	param[0].u.value.a = channel->channel_id;
+
+	if (channel->tee_shm) {
+		param[1].attr = TEE_IOCTL_PARAM_ATTR_TYPE_MEMREF_INOUT;
+		param[1].u.memref.shm = channel->tee_shm;
+		param[1].u.memref.size = SCMI_OPTEE_MAX_MSG_SIZE;
+		arg.num_params = 2;
+		arg.func = PTA_SCMI_CMD_PROCESS_SMT_CHANNEL_MESSAGE;
+	} else {
+		arg.num_params = 1;
+		arg.func = PTA_SCMI_CMD_PROCESS_SMT_CHANNEL;
+	}
+
+	ret = tee_client_invoke_func(scmi_optee_private->tee_ctx, &arg, param);
+	if (ret < 0 || arg.ret) {
+		dev_err(scmi_optee_private->dev, "Can't invoke channel %u: %d / %#x\n",
+			channel->channel_id, ret, arg.ret);
+		return -EIO;
+	}
+
+	return 0;
+}
+
+static int scmi_optee_link_supplier(struct device *dev)
+{
+	if (!scmi_optee_private) {
+		if (scmi_optee_init())
+			dev_dbg(dev, "Optee bus not yet ready\n");
+
+		/* Wait for optee bus */
+		return -EPROBE_DEFER;
+	}
+
+	if (!device_link_add(dev, scmi_optee_private->dev, DL_FLAG_AUTOREMOVE_CONSUMER)) {
+		dev_err(dev, "Adding link to supplier optee device failed\n");
+		return -ECANCELED;
+	}
+
+	return 0;
+}
+
+static bool scmi_optee_chan_available(struct device *dev, int idx)
+{
+	u32 channel_id;
+
+	return !of_property_read_u32_index(dev->of_node, "linaro,optee-channel-id",
+					   idx, &channel_id);
+}
+
+static void scmi_optee_clear_channel(struct scmi_chan_info *cinfo)
+{
+	struct scmi_optee_channel *channel = cinfo->transport_info;
+
+	shmem_clear_channel(channel->shmem);
+}
+
+static int setup_static_shmem(struct device *dev, struct scmi_chan_info *cinfo,
+			      struct scmi_optee_channel *channel)
+{
+	struct device_node *np;
+	resource_size_t size;
+	struct resource res;
+	int ret;
+
+	np = of_parse_phandle(cinfo->dev->of_node, "shmem", 0);
+	if (!of_device_is_compatible(np, "arm,scmi-shmem")) {
+		ret = -ENXIO;
+		goto out;
+	}
+
+	ret = of_address_to_resource(np, 0, &res);
+	if (ret) {
+		dev_err(dev, "Failed to get SCMI Tx shared memory\n");
+		goto out;
+	}
+
+	size = resource_size(&res);
+
+	channel->shmem = devm_ioremap(dev, res.start, size);
+	if (!channel->shmem) {
+		dev_err(dev, "Failed to ioremap SCMI Tx shared memory\n");
+		ret = -EADDRNOTAVAIL;
+		goto out;
+	}
+
+	ret = 0;
+
+out:
+	of_node_put(np);
+
+	return ret;
+}
+
+static int setup_shmem(struct device *dev, struct scmi_chan_info *cinfo,
+		       struct scmi_optee_channel *channel)
+{
+	if (of_find_property(cinfo->dev->of_node, "shmem", NULL))
+		return setup_static_shmem(dev, cinfo, channel);
+	else
+		return -ENOMEM;
+}
+
+static int scmi_optee_chan_setup(struct scmi_chan_info *cinfo, struct device *dev, bool tx)
+{
+	struct scmi_optee_channel *channel;
+	uint32_t channel_id;
+	int ret;
+
+	if (!tx)
+		return -ENODEV;
+
+	channel = devm_kzalloc(dev, sizeof(*channel), GFP_KERNEL);
+	if (!channel)
+		return -ENOMEM;
+
+	ret = of_property_read_u32_index(cinfo->dev->of_node, "linaro,optee-channel-id",
+					 0, &channel_id);
+	if (ret)
+		return ret;
+
+	cinfo->transport_info = channel;
+	channel->cinfo = cinfo;
+	channel->channel_id = channel_id;
+	mutex_init(&channel->mu);
+
+	ret = setup_shmem(dev, cinfo, channel);
+	if (ret)
+		return ret;
+
+	ret = open_session(scmi_optee_private, &channel->tee_session);
+	if (ret)
+		goto err_free_shm;
+
+	ret = get_channel(channel);
+	if (ret)
+		goto err_close_sess;
+
+	/* Enable polling */
+	cinfo->no_completion_irq = true;
+
+	mutex_lock(&scmi_optee_private->mu);
+	list_add(&channel->link, &scmi_optee_private->channel_list);
+	mutex_unlock(&scmi_optee_private->mu);
+
+	return 0;
+
+err_close_sess:
+	close_session(scmi_optee_private, channel->tee_session);
+err_free_shm:
+	if (channel->tee_shm)
+		tee_shm_free(channel->tee_shm);
+
+	return ret;
+}
+
+static int scmi_optee_chan_free(int id, void *p, void *data)
+{
+	struct scmi_chan_info *cinfo = p;
+	struct scmi_optee_channel *channel = cinfo->transport_info;
+
+	mutex_lock(&scmi_optee_private->mu);
+	list_del(&channel->link);
+	mutex_unlock(&scmi_optee_private->mu);
+
+	close_session(scmi_optee_private, channel->tee_session);
+
+	if (channel->tee_shm) {
+		tee_shm_free(channel->tee_shm);
+		channel->tee_shm = NULL;
+	}
+
+	cinfo->transport_info = NULL;
+	channel->cinfo = NULL;
+
+	scmi_free_channel(cinfo, data, id);
+
+	return 0;
+}
+
+static struct scmi_shared_mem *get_channel_shm(struct scmi_optee_channel *chan,
+					       struct scmi_xfer *xfer)
+{
+	if (!chan)
+		return NULL;
+
+	return chan->shmem;
+}
+
+
+static int scmi_optee_send_message(struct scmi_chan_info *cinfo,
+				   struct scmi_xfer *xfer)
+{
+	struct scmi_optee_channel *channel = cinfo->transport_info;
+	struct scmi_shared_mem *shmem = get_channel_shm(channel, xfer);
+	int ret;
+
+	mutex_lock(&channel->mu);
+	shmem_tx_prepare(shmem, xfer);
+
+	ret = invoke_process_smt_channel(channel);
+	if (ret)
+		mutex_unlock(&channel->mu);
+
+	return ret;
+}
+
+static void scmi_optee_fetch_response(struct scmi_chan_info *cinfo,
+				      struct scmi_xfer *xfer)
+{
+	struct scmi_optee_channel *channel = cinfo->transport_info;
+	struct scmi_shared_mem *shmem = get_channel_shm(channel, xfer);
+
+	shmem_fetch_response(shmem, xfer);
+}
+
+static void scmi_optee_mark_txdone(struct scmi_chan_info *cinfo, int ret,
+				   struct scmi_xfer *__unused)
+{
+	struct scmi_optee_channel *channel = cinfo->transport_info;
+
+	mutex_unlock(&channel->mu);
+}
+
+static struct scmi_transport_ops scmi_optee_ops = {
+	.link_supplier = scmi_optee_link_supplier,
+	.chan_available = scmi_optee_chan_available,
+	.chan_setup = scmi_optee_chan_setup,
+	.chan_free = scmi_optee_chan_free,
+	.send_message = scmi_optee_send_message,
+	.mark_txdone = scmi_optee_mark_txdone,
+	.fetch_response = scmi_optee_fetch_response,
+	.clear_channel = scmi_optee_clear_channel,
+};
+
+static int scmi_optee_ctx_match(struct tee_ioctl_version_data *ver, const void *data)
+{
+	return ver->impl_id == TEE_IMPL_ID_OPTEE;
+}
+
+static int scmi_optee_service_probe(struct device *dev)
+{
+	struct scmi_optee_agent *agent;
+	struct tee_context *tee_ctx;
+	int ret;
+
+	/* Only one SCMI OP-TEE device allowed */
+	if (scmi_optee_private) {
+		dev_err(dev, "An SCMI OP-TEE device was already initialized: only one allowed\n");
+		return -EBUSY;
+	}
+
+	tee_ctx = tee_client_open_context(NULL, scmi_optee_ctx_match, NULL, NULL);
+	if (IS_ERR(tee_ctx))
+		return -ENODEV;
+
+	agent = devm_kzalloc(dev, sizeof(*agent), GFP_KERNEL);
+	if (!agent) {
+		ret = -ENOMEM;
+		goto err;
+	}
+
+	agent->dev = dev;
+	agent->tee_ctx = tee_ctx;
+	INIT_LIST_HEAD(&agent->channel_list);
+	mutex_init(&agent->mu);
+
+	ret = get_capabilities(agent);
+	if (ret)
+		goto err;
+
+	/* Ensure agent resources are all visible before scmi_optee_private is */
+	smp_mb();
+	scmi_optee_private = agent;
+
+	return 0;
+
+err:
+	tee_client_close_context(tee_ctx);
+
+	return ret;
+}
+
+static int scmi_optee_service_remove(struct device *dev)
+{
+	struct scmi_optee_agent *agent = scmi_optee_private;
+
+	if (!scmi_optee_private)
+		return -EINVAL;
+
+	if (!list_empty(&scmi_optee_private->channel_list))
+		return -EBUSY;
+
+	/* Ensure cleared reference is visible before resources are released */
+	smp_store_mb(scmi_optee_private, NULL);
+
+	tee_client_close_context(agent->tee_ctx);
+
+	return 0;
+}
+
+static const struct tee_client_device_id scmi_optee_service_id[] = {
+	{
+		UUID_INIT(0xa8cfe406, 0xd4f5, 0x4a2e,
+			  0x9f, 0x8d, 0xa2, 0x5d, 0xc7, 0x54, 0xc0, 0x99)
+	},
+	{ }
+};
+
+MODULE_DEVICE_TABLE(tee, scmi_optee_service_id);
+
+static struct tee_client_driver scmi_optee_driver = {
+	.id_table	= scmi_optee_service_id,
+	.driver		= {
+		.name = "scmi-optee",
+		.bus = &tee_bus_type,
+		.probe = scmi_optee_service_probe,
+		.remove = scmi_optee_service_remove,
+	},
+};
+
+static int scmi_optee_init(void)
+{
+	return driver_register(&scmi_optee_driver.driver);
+}
+
+static void scmi_optee_exit(void)
+{
+	if (scmi_optee_private)
+		driver_unregister(&scmi_optee_driver.driver);
+}
+
+const struct scmi_desc scmi_optee_desc = {
+	.transport_exit = scmi_optee_exit,
+	.ops = &scmi_optee_ops,
+	.max_rx_timeout_ms = 30,
+	.max_msg = 20,
+	.max_msg_size = SCMI_OPTEE_MAX_MSG_SIZE,
+	.sync_cmds_completed_on_ret = true,
+};

drivers/firmware/arm_scmi/smc.c

@@ -7,6 +7,7 @@
  */
 
 #include <linux/arm-smccc.h>
+#include <linux/atomic.h>
 #include <linux/device.h>
 #include <linux/err.h>
 #include <linux/interrupt.h>
@@ -14,6 +15,7 @@
 #include <linux/of.h>
 #include <linux/of_address.h>
 #include <linux/of_irq.h>
+#include <linux/processor.h>
 #include <linux/slab.h>
 
 #include "common.h"
@@ -23,26 +25,29 @@
  *
  * @cinfo: SCMI channel info
  * @shmem: Transmit/Receive shared memory area
- * @shmem_lock: Lock to protect access to Tx/Rx shared memory area
+ * @shmem_lock: Lock to protect access to Tx/Rx shared memory area.
+ *		Used when NOT operating in atomic mode.
+ * @inflight: Atomic flag to protect access to Tx/Rx shared memory area.
+ *	      Used when operating in atomic mode.
  * @func_id: smc/hvc call function id
- * @irq: Optional; employed when platforms indicates msg completion by intr.
- * @tx_complete: Optional, employed only when irq is valid.
  */
 
 struct scmi_smc {
 	struct scmi_chan_info *cinfo;
 	struct scmi_shared_mem __iomem *shmem;
+	/* Protect access to shmem area */
 	struct mutex shmem_lock;
+#define INFLIGHT_NONE	MSG_TOKEN_MAX
+	atomic_t inflight;
 	u32 func_id;
-	int irq;
-	struct completion tx_complete;
 };
 
 static irqreturn_t smc_msg_done_isr(int irq, void *data)
 {
 	struct scmi_smc *scmi_info = data;
 
-	complete(&scmi_info->tx_complete);
+	scmi_rx_callback(scmi_info->cinfo,
+			 shmem_read_header(scmi_info->shmem), NULL);
 
 	return IRQ_HANDLED;
 }
@@ -57,6 +62,41 @@ static bool smc_chan_available(struct device *dev, int idx)
 	return true;
 }
 
+static inline void smc_channel_lock_init(struct scmi_smc *scmi_info)
+{
+	if (IS_ENABLED(CONFIG_ARM_SCMI_TRANSPORT_SMC_ATOMIC_ENABLE))
+		atomic_set(&scmi_info->inflight, INFLIGHT_NONE);
+	else
+		mutex_init(&scmi_info->shmem_lock);
+}
+
+static bool smc_xfer_inflight(struct scmi_xfer *xfer, atomic_t *inflight)
+{
+	int ret;
+
+	ret = atomic_cmpxchg(inflight, INFLIGHT_NONE, xfer->hdr.seq);
+
+	return ret == INFLIGHT_NONE;
+}
+
+static inline void
+smc_channel_lock_acquire(struct scmi_smc *scmi_info,
+			 struct scmi_xfer *xfer __maybe_unused)
+{
+	if (IS_ENABLED(CONFIG_ARM_SCMI_TRANSPORT_SMC_ATOMIC_ENABLE))
+		spin_until_cond(smc_xfer_inflight(xfer, &scmi_info->inflight));
+	else
+		mutex_lock(&scmi_info->shmem_lock);
+}
+
+static inline void smc_channel_lock_release(struct scmi_smc *scmi_info)
+{
+	if (IS_ENABLED(CONFIG_ARM_SCMI_TRANSPORT_SMC_ATOMIC_ENABLE))
+		atomic_set(&scmi_info->inflight, INFLIGHT_NONE);
+	else
+		mutex_unlock(&scmi_info->shmem_lock);
+}
+
 static int smc_chan_setup(struct scmi_chan_info *cinfo, struct device *dev,
 			  bool tx)
 {
@@ -111,13 +151,13 @@ static int smc_chan_setup(struct scmi_chan_info *cinfo, struct device *dev,
 			dev_err(dev, "failed to setup SCMI smc irq\n");
 			return ret;
 		}
-		init_completion(&scmi_info->tx_complete);
-		scmi_info->irq = irq;
+	} else {
+		cinfo->no_completion_irq = true;
 	}
 
 	scmi_info->func_id = func_id;
 	scmi_info->cinfo = cinfo;
-	mutex_init(&scmi_info->shmem_lock);
+	smc_channel_lock_init(scmi_info);
 	cinfo->transport_info = scmi_info;
 
 	return 0;
@@ -142,26 +182,22 @@ static int smc_send_message(struct scmi_chan_info *cinfo,
 	struct scmi_smc *scmi_info = cinfo->transport_info;
 	struct arm_smccc_res res;
 
-	mutex_lock(&scmi_info->shmem_lock);
+	/*
+	 * Channel will be released only once response has been
+	 * surely fully retrieved, so after .mark_txdone()
+	 */
+	smc_channel_lock_acquire(scmi_info, xfer);
 
 	shmem_tx_prepare(scmi_info->shmem, xfer);
 
-	if (scmi_info->irq)
-		reinit_completion(&scmi_info->tx_complete);
-
 	arm_smccc_1_1_invoke(scmi_info->func_id, 0, 0, 0, 0, 0, 0, 0, &res);
 
-	if (scmi_info->irq)
-		wait_for_completion(&scmi_info->tx_complete);
-
-	scmi_rx_callback(scmi_info->cinfo,
-			 shmem_read_header(scmi_info->shmem), NULL);
-
-	mutex_unlock(&scmi_info->shmem_lock);
-
 	/* Only SMCCC_RET_NOT_SUPPORTED is valid error code */
-	if (res.a0)
+	if (res.a0) {
+		smc_channel_lock_release(scmi_info);
 		return -EOPNOTSUPP;
+	}
+
 	return 0;
 }
 
@@ -173,12 +209,12 @@ static void smc_fetch_response(struct scmi_chan_info *cinfo,
 	shmem_fetch_response(scmi_info->shmem, xfer);
 }
 
-static bool
-smc_poll_done(struct scmi_chan_info *cinfo, struct scmi_xfer *xfer)
+static void smc_mark_txdone(struct scmi_chan_info *cinfo, int ret,
+			    struct scmi_xfer *__unused)
 {
 	struct scmi_smc *scmi_info = cinfo->transport_info;
 
-	return shmem_poll_done(scmi_info->shmem, xfer);
+	smc_channel_lock_release(scmi_info);
 }
 
 static const struct scmi_transport_ops scmi_smc_ops = {
@@ -186,8 +222,8 @@ static const struct scmi_transport_ops scmi_smc_ops = {
 	.chan_setup = smc_chan_setup,
 	.chan_free = smc_chan_free,
 	.send_message = smc_send_message,
+	.mark_txdone = smc_mark_txdone,
 	.fetch_response = smc_fetch_response,
-	.poll_done = smc_poll_done,
 };
 
 const struct scmi_desc scmi_smc_desc = {
@@ -195,4 +231,14 @@ const struct scmi_desc scmi_smc_desc = {
 	.max_rx_timeout_ms = 30,
 	.max_msg = 20,
 	.max_msg_size = 128,
+	/*
+	 * Setting .sync_cmds_atomic_replies to true for SMC assumes that,
+	 * once the SMC instruction has completed successfully, the issued
+	 * SCMI command would have been already fully processed by the SCMI
+	 * platform firmware and so any possible response value expected
+	 * for the issued command will be immmediately ready to be fetched
+	 * from the shared memory area.
+	 */
+	.sync_cmds_completed_on_ret = true,
+	.atomic_enabled = IS_ENABLED(CONFIG_ARM_SCMI_TRANSPORT_SMC_ATOMIC_ENABLE),
 };

drivers/firmware/arm_scmi/virtio.c

@@ -3,8 +3,8 @@
  * Virtio Transport driver for Arm System Control and Management Interface
  * (SCMI).
  *
- * Copyright (C) 2020-2021 OpenSynergy.
- * Copyright (C) 2021 ARM Ltd.
+ * Copyright (C) 2020-2022 OpenSynergy.
+ * Copyright (C) 2021-2022 ARM Ltd.
  */
 
 /**
@@ -17,7 +17,9 @@
  * virtqueue. Access to each virtqueue is protected by spinlocks.
  */
 
+#include <linux/completion.h>
 #include <linux/errno.h>
+#include <linux/refcount.h>
 #include <linux/slab.h>
 #include <linux/virtio.h>
 #include <linux/virtio_config.h>
@@ -27,6 +29,7 @@
 
 #include "common.h"
 
+#define VIRTIO_MAX_RX_TIMEOUT_MS	60000
 #define VIRTIO_SCMI_MAX_MSG_SIZE 128 /* Value may be increased. */
 #define VIRTIO_SCMI_MAX_PDU_SIZE \
 	(VIRTIO_SCMI_MAX_MSG_SIZE + SCMI_MSG_MAX_PROT_OVERHEAD)
@@ -37,25 +40,46 @@
  *
  * @vqueue: Associated virtqueue
  * @cinfo: SCMI Tx or Rx channel
+ * @free_lock: Protects access to the @free_list.
  * @free_list: List of unused scmi_vio_msg, maintained for Tx channels only
+ * @deferred_tx_work: Worker for TX deferred replies processing
+ * @deferred_tx_wq: Workqueue for TX deferred replies
+ * @pending_lock: Protects access to the @pending_cmds_list.
+ * @pending_cmds_list: List of pre-fetched commands queueud for later processing
  * @is_rx: Whether channel is an Rx channel
- * @ready: Whether transport user is ready to hear about channel
  * @max_msg: Maximum number of pending messages for this channel.
- * @lock: Protects access to all members except ready.
- * @ready_lock: Protects access to ready. If required, it must be taken before
- *              lock.
+ * @lock: Protects access to all members except users, free_list and
+ *	  pending_cmds_list.
+ * @shutdown_done: A reference to a completion used when freeing this channel.
+ * @users: A reference count to currently active users of this channel.
  */
 struct scmi_vio_channel {
 	struct virtqueue *vqueue;
 	struct scmi_chan_info *cinfo;
+	/* lock to protect access to the free list. */
+	spinlock_t free_lock;
 	struct list_head free_list;
+	/* lock to protect access to the pending list. */
+	spinlock_t pending_lock;
+	struct list_head pending_cmds_list;
+	struct work_struct deferred_tx_work;
+	struct workqueue_struct *deferred_tx_wq;
 	bool is_rx;
-	bool ready;
 	unsigned int max_msg;
-	/* lock to protect access to all members except ready. */
+	/*
+	 * Lock to protect access to all members except users, free_list and
+	 * pending_cmds_list
+	 */
 	spinlock_t lock;
-	/* lock to rotects access to ready flag. */
-	spinlock_t ready_lock;
+	struct completion *shutdown_done;
+	refcount_t users;
+};
+
+enum poll_states {
+	VIO_MSG_NOT_POLLED,
+	VIO_MSG_POLL_TIMEOUT,
+	VIO_MSG_POLLING,
+	VIO_MSG_POLL_DONE,
 };
 
 /**
@@ -65,29 +89,154 @@ struct scmi_vio_channel {
  * @input: SDU used for (delayed) responses and notifications
  * @list: List which scmi_vio_msg may be part of
  * @rx_len: Input SDU size in bytes, once input has been received
+ * @poll_idx: Last used index registered for polling purposes if this message
+ *	      transaction reply was configured for polling.
+ * @poll_status: Polling state for this message.
+ * @poll_lock: A lock to protect @poll_status
+ * @users: A reference count to track this message users and avoid premature
+ *	   freeing (and reuse) when polling and IRQ execution paths interleave.
  */
 struct scmi_vio_msg {
 	struct scmi_msg_payld *request;
 	struct scmi_msg_payld *input;
 	struct list_head list;
 	unsigned int rx_len;
+	unsigned int poll_idx;
+	enum poll_states poll_status;
+	/* Lock to protect access to poll_status */
+	spinlock_t poll_lock;
+	refcount_t users;
 };
 
 /* Only one SCMI VirtIO device can possibly exist */
 static struct virtio_device *scmi_vdev;
 
+static void scmi_vio_channel_ready(struct scmi_vio_channel *vioch,
+				   struct scmi_chan_info *cinfo)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&vioch->lock, flags);
+	cinfo->transport_info = vioch;
+	/* Indirectly setting channel not available any more */
+	vioch->cinfo = cinfo;
+	spin_unlock_irqrestore(&vioch->lock, flags);
+
+	refcount_set(&vioch->users, 1);
+}
+
+static inline bool scmi_vio_channel_acquire(struct scmi_vio_channel *vioch)
+{
+	return refcount_inc_not_zero(&vioch->users);
+}
+
+static inline void scmi_vio_channel_release(struct scmi_vio_channel *vioch)
+{
+	if (refcount_dec_and_test(&vioch->users)) {
+		unsigned long flags;
+
+		spin_lock_irqsave(&vioch->lock, flags);
+		if (vioch->shutdown_done) {
+			vioch->cinfo = NULL;
+			complete(vioch->shutdown_done);
+		}
+		spin_unlock_irqrestore(&vioch->lock, flags);
+	}
+}
+
+static void scmi_vio_channel_cleanup_sync(struct scmi_vio_channel *vioch)
+{
+	unsigned long flags;
+	DECLARE_COMPLETION_ONSTACK(vioch_shutdown_done);
+	void *deferred_wq = NULL;
+
+	/*
+	 * Prepare to wait for the last release if not already released
+	 * or in progress.
+	 */
+	spin_lock_irqsave(&vioch->lock, flags);
+	if (!vioch->cinfo || vioch->shutdown_done) {
+		spin_unlock_irqrestore(&vioch->lock, flags);
+		return;
+	}
+
+	vioch->shutdown_done = &vioch_shutdown_done;
+	virtio_break_device(vioch->vqueue->vdev);
+	if (!vioch->is_rx && vioch->deferred_tx_wq) {
+		deferred_wq = vioch->deferred_tx_wq;
+		/* Cannot be kicked anymore after this...*/
+		vioch->deferred_tx_wq = NULL;
+	}
+	spin_unlock_irqrestore(&vioch->lock, flags);
+
+	if (deferred_wq)
+		destroy_workqueue(deferred_wq);
+
+	scmi_vio_channel_release(vioch);
+
+	/* Let any possibly concurrent RX path release the channel */
+	wait_for_completion(vioch->shutdown_done);
+}
+
+/* Assumes to be called with vio channel acquired already */
+static struct scmi_vio_msg *
+scmi_virtio_get_free_msg(struct scmi_vio_channel *vioch)
+{
+	unsigned long flags;
+	struct scmi_vio_msg *msg;
+
+	spin_lock_irqsave(&vioch->free_lock, flags);
+	if (list_empty(&vioch->free_list)) {
+		spin_unlock_irqrestore(&vioch->free_lock, flags);
+		return NULL;
+	}
+
+	msg = list_first_entry(&vioch->free_list, typeof(*msg), list);
+	list_del_init(&msg->list);
+	spin_unlock_irqrestore(&vioch->free_lock, flags);
+
+	/* Still no users, no need to acquire poll_lock */
+	msg->poll_status = VIO_MSG_NOT_POLLED;
+	refcount_set(&msg->users, 1);
+
+	return msg;
+}
+
+static inline bool scmi_vio_msg_acquire(struct scmi_vio_msg *msg)
+{
+	return refcount_inc_not_zero(&msg->users);
+}
+
+/* Assumes to be called with vio channel acquired already */
+static inline bool scmi_vio_msg_release(struct scmi_vio_channel *vioch,
+					struct scmi_vio_msg *msg)
+{
+	bool ret;
+
+	ret = refcount_dec_and_test(&msg->users);
+	if (ret) {
+		unsigned long flags;
+
+		spin_lock_irqsave(&vioch->free_lock, flags);
+		list_add_tail(&msg->list, &vioch->free_list);
+		spin_unlock_irqrestore(&vioch->free_lock, flags);
+	}
+
+	return ret;
+}
+
 static bool scmi_vio_have_vq_rx(struct virtio_device *vdev)
 {
 	return virtio_has_feature(vdev, VIRTIO_SCMI_F_P2A_CHANNELS);
 }
 
 static int scmi_vio_feed_vq_rx(struct scmi_vio_channel *vioch,
-			       struct scmi_vio_msg *msg,
-			       struct device *dev)
+			       struct scmi_vio_msg *msg)
 {
 	struct scatterlist sg_in;
 	int rc;
 	unsigned long flags;
+	struct device *dev = &vioch->vqueue->vdev->dev;
 
 	sg_init_one(&sg_in, msg->input, VIRTIO_SCMI_MAX_PDU_SIZE);
 
@@ -95,7 +244,7 @@ static int scmi_vio_feed_vq_rx(struct scmi_vio_channel *vioch,
 
 	rc = virtqueue_add_inbuf(vioch->vqueue, &sg_in, 1, msg, GFP_ATOMIC);
 	if (rc)
-		dev_err_once(dev, "failed to add to virtqueue (%d)\n", rc);
+		dev_err(dev, "failed to add to RX virtqueue (%d)\n", rc);
 	else
 		virtqueue_kick(vioch->vqueue);
 
@@ -104,22 +253,22 @@ static int scmi_vio_feed_vq_rx(struct scmi_vio_channel *vioch,
 	return rc;
 }
 
+/*
+ * Assume to be called with channel already acquired or not ready at all;
+ * vioch->lock MUST NOT have been already acquired.
+ */
 static void scmi_finalize_message(struct scmi_vio_channel *vioch,
 				  struct scmi_vio_msg *msg)
 {
-	if (vioch->is_rx) {
-		scmi_vio_feed_vq_rx(vioch, msg, vioch->cinfo->dev);
-	} else {
-		/* Here IRQs are assumed to be already disabled by the caller */
-		spin_lock(&vioch->lock);
-		list_add(&msg->list, &vioch->free_list);
-		spin_unlock(&vioch->lock);
-	}
+	if (vioch->is_rx)
+		scmi_vio_feed_vq_rx(vioch, msg);
+	else
+		scmi_vio_msg_release(vioch, msg);
 }
 
 static void scmi_vio_complete_cb(struct virtqueue *vqueue)
 {
-	unsigned long ready_flags;
+	unsigned long flags;
 	unsigned int length;
 	struct scmi_vio_channel *vioch;
 	struct scmi_vio_msg *msg;
@@ -130,27 +279,25 @@ static void scmi_vio_complete_cb(struct virtqueue *vqueue)
 	vioch = &((struct scmi_vio_channel *)vqueue->vdev->priv)[vqueue->index];
 
 	for (;;) {
-		spin_lock_irqsave(&vioch->ready_lock, ready_flags);
+		if (!scmi_vio_channel_acquire(vioch))
+			return;
 
-		if (!vioch->ready) {
-			if (!cb_enabled)
-				(void)virtqueue_enable_cb(vqueue);
-			goto unlock_ready_out;
-		}
-
-		/* IRQs already disabled here no need to irqsave */
-		spin_lock(&vioch->lock);
+		spin_lock_irqsave(&vioch->lock, flags);
 		if (cb_enabled) {
 			virtqueue_disable_cb(vqueue);
 			cb_enabled = false;
 		}
+
 		msg = virtqueue_get_buf(vqueue, &length);
 		if (!msg) {
-			if (virtqueue_enable_cb(vqueue))
-				goto unlock_out;
+			if (virtqueue_enable_cb(vqueue)) {
+				spin_unlock_irqrestore(&vioch->lock, flags);
+				scmi_vio_channel_release(vioch);
+				return;
+			}
 			cb_enabled = true;
 		}
-		spin_unlock(&vioch->lock);
+		spin_unlock_irqrestore(&vioch->lock, flags);
 
 		if (msg) {
 			msg->rx_len = length;
@@ -161,19 +308,57 @@ static void scmi_vio_complete_cb(struct virtqueue *vqueue)
 		}
 
 		/*
-		 * Release ready_lock and re-enable IRQs between loop iterations
-		 * to allow virtio_chan_free() to possibly kick in and set the
-		 * flag vioch->ready to false even in between processing of
-		 * messages, so as to force outstanding messages to be ignored
-		 * when system is shutting down.
+		 * Release vio channel between loop iterations to allow
+		 * virtio_chan_free() to eventually fully release it when
+		 * shutting down; in such a case, any outstanding message will
+		 * be ignored since this loop will bail out at the next
+		 * iteration.
 		 */
-		spin_unlock_irqrestore(&vioch->ready_lock, ready_flags);
+		scmi_vio_channel_release(vioch);
+	}
+}
+
+static void scmi_vio_deferred_tx_worker(struct work_struct *work)
+{
+	unsigned long flags;
+	struct scmi_vio_channel *vioch;
+	struct scmi_vio_msg *msg, *tmp;
+
+	vioch = container_of(work, struct scmi_vio_channel, deferred_tx_work);
+
+	if (!scmi_vio_channel_acquire(vioch))
+		return;
+
+	/*
+	 * Process pre-fetched messages: these could be non-polled messages or
+	 * late timed-out replies to polled messages dequeued by chance while
+	 * polling for some other messages: this worker is in charge to process
+	 * the valid non-expired messages and anyway finally free all of them.
+	 */
+	spin_lock_irqsave(&vioch->pending_lock, flags);
+
+	/* Scan the list of possibly pre-fetched messages during polling. */
+	list_for_each_entry_safe(msg, tmp, &vioch->pending_cmds_list, list) {
+		list_del(&msg->list);
+
+		/*
+		 * Channel is acquired here (cannot vanish) and this message
+		 * is no more processed elsewhere so no poll_lock needed.
+		 */
+		if (msg->poll_status == VIO_MSG_NOT_POLLED)
+			scmi_rx_callback(vioch->cinfo,
+					 msg_read_header(msg->input), msg);
+
+		/* Free the processed message once done */
+		scmi_vio_msg_release(vioch, msg);
 	}
 
-unlock_out:
-	spin_unlock(&vioch->lock);
-unlock_ready_out:
-	spin_unlock_irqrestore(&vioch->ready_lock, ready_flags);
+	spin_unlock_irqrestore(&vioch->pending_lock, flags);
+
+	/* Process possibly still pending messages */
+	scmi_vio_complete_cb(vioch->vqueue);
+
+	scmi_vio_channel_release(vioch);
 }
 
 static const char *const scmi_vio_vqueue_names[] = { "tx", "rx" };
@@ -193,8 +378,8 @@ static unsigned int virtio_get_max_msg(struct scmi_chan_info *base_cinfo)
 static int virtio_link_supplier(struct device *dev)
 {
 	if (!scmi_vdev) {
-		dev_notice_once(dev,
-				"Deferring probe after not finding a bound scmi-virtio device\n");
+		dev_notice(dev,
+			   "Deferring probe after not finding a bound scmi-virtio device\n");
 		return -EPROBE_DEFER;
 	}
 
@@ -234,7 +419,6 @@ static bool virtio_chan_available(struct device *dev, int idx)
 static int virtio_chan_setup(struct scmi_chan_info *cinfo, struct device *dev,
 			     bool tx)
 {
-	unsigned long flags;
 	struct scmi_vio_channel *vioch;
 	int index = tx ? VIRTIO_SCMI_VQ_TX : VIRTIO_SCMI_VQ_RX;
 	int i;
@@ -244,6 +428,19 @@ static int virtio_chan_setup(struct scmi_chan_info *cinfo, struct device *dev,
 
 	vioch = &((struct scmi_vio_channel *)scmi_vdev->priv)[index];
 
+	/* Setup a deferred worker for polling. */
+	if (tx && !vioch->deferred_tx_wq) {
+		vioch->deferred_tx_wq =
+			alloc_workqueue(dev_name(&scmi_vdev->dev),
+					WQ_UNBOUND | WQ_FREEZABLE | WQ_SYSFS,
+					0);
+		if (!vioch->deferred_tx_wq)
+			return -ENOMEM;
+
+		INIT_WORK(&vioch->deferred_tx_work,
+			  scmi_vio_deferred_tx_worker);
+	}
+
 	for (i = 0; i < vioch->max_msg; i++) {
 		struct scmi_vio_msg *msg;
 
@@ -257,6 +454,8 @@ static int virtio_chan_setup(struct scmi_chan_info *cinfo, struct device *dev,
 						    GFP_KERNEL);
 			if (!msg->request)
 				return -ENOMEM;
+			spin_lock_init(&msg->poll_lock);
+			refcount_set(&msg->users, 1);
 		}
 
 		msg->input = devm_kzalloc(cinfo->dev, VIRTIO_SCMI_MAX_PDU_SIZE,
@@ -264,44 +463,23 @@ static int virtio_chan_setup(struct scmi_chan_info *cinfo, struct device *dev,
 		if (!msg->input)
 			return -ENOMEM;
 
-		if (tx) {
-			spin_lock_irqsave(&vioch->lock, flags);
-			list_add_tail(&msg->list, &vioch->free_list);
-			spin_unlock_irqrestore(&vioch->lock, flags);
-		} else {
-			scmi_vio_feed_vq_rx(vioch, msg, cinfo->dev);
-		}
+		scmi_finalize_message(vioch, msg);
 	}
 
-	spin_lock_irqsave(&vioch->lock, flags);
-	cinfo->transport_info = vioch;
-	/* Indirectly setting channel not available any more */
-	vioch->cinfo = cinfo;
-	spin_unlock_irqrestore(&vioch->lock, flags);
-
-	spin_lock_irqsave(&vioch->ready_lock, flags);
-	vioch->ready = true;
-	spin_unlock_irqrestore(&vioch->ready_lock, flags);
+	scmi_vio_channel_ready(vioch, cinfo);
 
 	return 0;
 }
 
 static int virtio_chan_free(int id, void *p, void *data)
 {
-	unsigned long flags;
 	struct scmi_chan_info *cinfo = p;
 	struct scmi_vio_channel *vioch = cinfo->transport_info;
 
-	spin_lock_irqsave(&vioch->ready_lock, flags);
-	vioch->ready = false;
-	spin_unlock_irqrestore(&vioch->ready_lock, flags);
+	scmi_vio_channel_cleanup_sync(vioch);
 
 	scmi_free_channel(cinfo, data, id);
 
-	spin_lock_irqsave(&vioch->lock, flags);
-	vioch->cinfo = NULL;
-	spin_unlock_irqrestore(&vioch->lock, flags);
-
 	return 0;
 }
 
@@ -316,33 +494,56 @@ static int virtio_send_message(struct scmi_chan_info *cinfo,
 	int rc;
 	struct scmi_vio_msg *msg;
 
-	spin_lock_irqsave(&vioch->lock, flags);
+	if (!scmi_vio_channel_acquire(vioch))
+		return -EINVAL;
 
-	if (list_empty(&vioch->free_list)) {
-		spin_unlock_irqrestore(&vioch->lock, flags);
+	msg = scmi_virtio_get_free_msg(vioch);
+	if (!msg) {
+		scmi_vio_channel_release(vioch);
 		return -EBUSY;
 	}
 
-	msg = list_first_entry(&vioch->free_list, typeof(*msg), list);
-	list_del(&msg->list);
-
 	msg_tx_prepare(msg->request, xfer);
 
 	sg_init_one(&sg_out, msg->request, msg_command_size(xfer));
 	sg_init_one(&sg_in, msg->input, msg_response_size(xfer));
 
-	rc = virtqueue_add_sgs(vioch->vqueue, sgs, 1, 1, msg, GFP_ATOMIC);
-	if (rc) {
-		list_add(&msg->list, &vioch->free_list);
-		dev_err_once(vioch->cinfo->dev,
-			     "%s() failed to add to virtqueue (%d)\n", __func__,
-			     rc);
-	} else {
-		virtqueue_kick(vioch->vqueue);
+	spin_lock_irqsave(&vioch->lock, flags);
+
+	/*
+	 * If polling was requested for this transaction:
+	 *  - retrieve last used index (will be used as polling reference)
+	 *  - bind the polled message to the xfer via .priv
+	 *  - grab an additional msg refcount for the poll-path
+	 */
+	if (xfer->hdr.poll_completion) {
+		msg->poll_idx = virtqueue_enable_cb_prepare(vioch->vqueue);
+		/* Still no users, no need to acquire poll_lock */
+		msg->poll_status = VIO_MSG_POLLING;
+		scmi_vio_msg_acquire(msg);
+		/* Ensure initialized msg is visibly bound to xfer */
+		smp_store_mb(xfer->priv, msg);
 	}
 
+	rc = virtqueue_add_sgs(vioch->vqueue, sgs, 1, 1, msg, GFP_ATOMIC);
+	if (rc)
+		dev_err(vioch->cinfo->dev,
+			"failed to add to TX virtqueue (%d)\n", rc);
+	else
+		virtqueue_kick(vioch->vqueue);
+
 	spin_unlock_irqrestore(&vioch->lock, flags);
 
+	if (rc) {
+		/* Ensure order between xfer->priv clear and vq feeding */
+		smp_store_mb(xfer->priv, NULL);
+		if (xfer->hdr.poll_completion)
+			scmi_vio_msg_release(vioch, msg);
+		scmi_vio_msg_release(vioch, msg);
+	}
+
+	scmi_vio_channel_release(vioch);
+
 	return rc;
 }
 
@@ -351,10 +552,8 @@ static void virtio_fetch_response(struct scmi_chan_info *cinfo,
 {
 	struct scmi_vio_msg *msg = xfer->priv;
 
-	if (msg) {
+	if (msg)
 		msg_fetch_response(msg->input, msg->rx_len, xfer);
-		xfer->priv = NULL;
-	}
 }
 
 static void virtio_fetch_notification(struct scmi_chan_info *cinfo,
@@ -362,10 +561,225 @@ static void virtio_fetch_notification(struct scmi_chan_info *cinfo,
 {
 	struct scmi_vio_msg *msg = xfer->priv;
 
-	if (msg) {
+	if (msg)
 		msg_fetch_notification(msg->input, msg->rx_len, max_len, xfer);
-		xfer->priv = NULL;
+}
+
+/**
+ * virtio_mark_txdone  - Mark transmission done
+ *
+ * Free only completed polling transfer messages.
+ *
+ * Note that in the SCMI VirtIO transport we never explicitly release still
+ * outstanding but timed-out messages by forcibly re-adding them to the
+ * free-list inside the TX code path; we instead let IRQ/RX callbacks, or the
+ * TX deferred worker, eventually clean up such messages once, finally, a late
+ * reply is received and discarded (if ever).
+ *
+ * This approach was deemed preferable since those pending timed-out buffers are
+ * still effectively owned by the SCMI platform VirtIO device even after timeout
+ * expiration: forcibly freeing and reusing them before they had been returned
+ * explicitly by the SCMI platform could lead to subtle bugs due to message
+ * corruption.
+ * An SCMI platform VirtIO device which never returns message buffers is
+ * anyway broken and it will quickly lead to exhaustion of available messages.
+ *
+ * For this same reason, here, we take care to free only the polled messages
+ * that had been somehow replied (only if not by chance already processed on the
+ * IRQ path - the initial scmi_vio_msg_release() takes care of this) and also
+ * any timed-out polled message if that indeed appears to have been at least
+ * dequeued from the virtqueues (VIO_MSG_POLL_DONE): this is needed since such
+ * messages won't be freed elsewhere. Any other polled message is marked as
+ * VIO_MSG_POLL_TIMEOUT.
+ *
+ * Possible late replies to timed-out polled messages will be eventually freed
+ * by RX callbacks if delivered on the IRQ path or by the deferred TX worker if
+ * dequeued on some other polling path.
+ *
+ * @cinfo: SCMI channel info
+ * @ret: Transmission return code
+ * @xfer: Transfer descriptor
+ */
+static void virtio_mark_txdone(struct scmi_chan_info *cinfo, int ret,
+			       struct scmi_xfer *xfer)
+{
+	unsigned long flags;
+	struct scmi_vio_channel *vioch = cinfo->transport_info;
+	struct scmi_vio_msg *msg = xfer->priv;
+
+	if (!msg || !scmi_vio_channel_acquire(vioch))
+		return;
+
+	/* Ensure msg is unbound from xfer anyway at this point */
+	smp_store_mb(xfer->priv, NULL);
+
+	/* Must be a polled xfer and not already freed on the IRQ path */
+	if (!xfer->hdr.poll_completion || scmi_vio_msg_release(vioch, msg)) {
+		scmi_vio_channel_release(vioch);
+		return;
 	}
+
+	spin_lock_irqsave(&msg->poll_lock, flags);
+	/* Do not free timedout polled messages only if still inflight */
+	if (ret != -ETIMEDOUT || msg->poll_status == VIO_MSG_POLL_DONE)
+		scmi_vio_msg_release(vioch, msg);
+	else if (msg->poll_status == VIO_MSG_POLLING)
+		msg->poll_status = VIO_MSG_POLL_TIMEOUT;
+	spin_unlock_irqrestore(&msg->poll_lock, flags);
+
+	scmi_vio_channel_release(vioch);
+}
+
+/**
+ * virtio_poll_done  - Provide polling support for VirtIO transport
+ *
+ * @cinfo: SCMI channel info
+ * @xfer: Reference to the transfer being poll for.
+ *
+ * VirtIO core provides a polling mechanism based only on last used indexes:
+ * this means that it is possible to poll the virtqueues waiting for something
+ * new to arrive from the host side, but the only way to check if the freshly
+ * arrived buffer was indeed what we were waiting for is to compare the newly
+ * arrived message descriptor with the one we are polling on.
+ *
+ * As a consequence it can happen to dequeue something different from the buffer
+ * we were poll-waiting for: if that is the case such early fetched buffers are
+ * then added to a the @pending_cmds_list list for later processing by a
+ * dedicated deferred worker.
+ *
+ * So, basically, once something new is spotted we proceed to de-queue all the
+ * freshly received used buffers until we found the one we were polling on, or,
+ * we have 'seemingly' emptied the virtqueue; if some buffers are still pending
+ * in the vqueue at the end of the polling loop (possible due to inherent races
+ * in virtqueues handling mechanisms), we similarly kick the deferred worker
+ * and let it process those, to avoid indefinitely looping in the .poll_done
+ * busy-waiting helper.
+ *
+ * Finally, we delegate to the deferred worker also the final free of any timed
+ * out reply to a polled message that we should dequeue.
+ *
+ * Note that, since we do NOT have per-message suppress notification mechanism,
+ * the message we are polling for could be alternatively delivered via usual
+ * IRQs callbacks on another core which happened to have IRQs enabled while we
+ * are actively polling for it here: in such a case it will be handled as such
+ * by scmi_rx_callback() and the polling loop in the SCMI Core TX path will be
+ * transparently terminated anyway.
+ *
+ * Return: True once polling has successfully completed.
+ */
+static bool virtio_poll_done(struct scmi_chan_info *cinfo,
+			     struct scmi_xfer *xfer)
+{
+	bool pending, found = false;
+	unsigned int length, any_prefetched = 0;
+	unsigned long flags;
+	struct scmi_vio_msg *next_msg, *msg = xfer->priv;
+	struct scmi_vio_channel *vioch = cinfo->transport_info;
+
+	if (!msg)
+		return true;
+
+	/*
+	 * Processed already by other polling loop on another CPU ?
+	 *
+	 * Note that this message is acquired on the poll path so cannot vanish
+	 * while inside this loop iteration even if concurrently processed on
+	 * the IRQ path.
+	 *
+	 * Avoid to acquire poll_lock since polled_status can be changed
+	 * in a relevant manner only later in this same thread of execution:
+	 * any other possible changes made concurrently by other polling loops
+	 * or by a reply delivered on the IRQ path have no meaningful impact on
+	 * this loop iteration: in other words it is harmless to allow this
+	 * possible race but let has avoid spinlocking with irqs off in this
+	 * initial part of the polling loop.
+	 */
+	if (msg->poll_status == VIO_MSG_POLL_DONE)
+		return true;
+
+	if (!scmi_vio_channel_acquire(vioch))
+		return true;
+
+	/* Has cmdq index moved at all ? */
+	pending = virtqueue_poll(vioch->vqueue, msg->poll_idx);
+	if (!pending) {
+		scmi_vio_channel_release(vioch);
+		return false;
+	}
+
+	spin_lock_irqsave(&vioch->lock, flags);
+	virtqueue_disable_cb(vioch->vqueue);
+
+	/*
+	 * Process all new messages till the polled-for message is found OR
+	 * the vqueue is empty.
+	 */
+	while ((next_msg = virtqueue_get_buf(vioch->vqueue, &length))) {
+		bool next_msg_done = false;
+
+		/*
+		 * Mark any dequeued buffer message as VIO_MSG_POLL_DONE so
+		 * that can be properly freed even on timeout in mark_txdone.
+		 */
+		spin_lock(&next_msg->poll_lock);
+		if (next_msg->poll_status == VIO_MSG_POLLING) {
+			next_msg->poll_status = VIO_MSG_POLL_DONE;
+			next_msg_done = true;
+		}
+		spin_unlock(&next_msg->poll_lock);
+
+		next_msg->rx_len = length;
+		/* Is the message we were polling for ? */
+		if (next_msg == msg) {
+			found = true;
+			break;
+		} else if (next_msg_done) {
+			/* Skip the rest if this was another polled msg */
+			continue;
+		}
+
+		/*
+		 * Enqueue for later processing any non-polled message and any
+		 * timed-out polled one that we happen to have dequeued.
+		 */
+		spin_lock(&next_msg->poll_lock);
+		if (next_msg->poll_status == VIO_MSG_NOT_POLLED ||
+		    next_msg->poll_status == VIO_MSG_POLL_TIMEOUT) {
+			spin_unlock(&next_msg->poll_lock);
+
+			any_prefetched++;
+			spin_lock(&vioch->pending_lock);
+			list_add_tail(&next_msg->list,
+				      &vioch->pending_cmds_list);
+			spin_unlock(&vioch->pending_lock);
+		} else {
+			spin_unlock(&next_msg->poll_lock);
+		}
+	}
+
+	/*
+	 * When the polling loop has successfully terminated if something
+	 * else was queued in the meantime, it will be served by a deferred
+	 * worker OR by the normal IRQ/callback OR by other poll loops.
+	 *
+	 * If we are still looking for the polled reply, the polling index has
+	 * to be updated to the current vqueue last used index.
+	 */
+	if (found) {
+		pending = !virtqueue_enable_cb(vioch->vqueue);
+	} else {
+		msg->poll_idx = virtqueue_enable_cb_prepare(vioch->vqueue);
+		pending = virtqueue_poll(vioch->vqueue, msg->poll_idx);
+	}
+
+	if (vioch->deferred_tx_wq && (any_prefetched || pending))
+		queue_work(vioch->deferred_tx_wq, &vioch->deferred_tx_work);
+
+	spin_unlock_irqrestore(&vioch->lock, flags);
+
+	scmi_vio_channel_release(vioch);
+
+	return found;
 }
 
 static const struct scmi_transport_ops scmi_virtio_ops = {
@@ -377,6 +791,8 @@ static const struct scmi_transport_ops scmi_virtio_ops = {
 	.send_message = virtio_send_message,
 	.fetch_response = virtio_fetch_response,
 	.fetch_notification = virtio_fetch_notification,
+	.mark_txdone = virtio_mark_txdone,
+	.poll_done = virtio_poll_done,
 };
 
 static int scmi_vio_probe(struct virtio_device *vdev)
@@ -417,8 +833,10 @@ static int scmi_vio_probe(struct virtio_device *vdev)
 		unsigned int sz;
 
 		spin_lock_init(&channels[i].lock);
-		spin_lock_init(&channels[i].ready_lock);
+		spin_lock_init(&channels[i].free_lock);
 		INIT_LIST_HEAD(&channels[i].free_list);
+		spin_lock_init(&channels[i].pending_lock);
+		INIT_LIST_HEAD(&channels[i].pending_cmds_list);
 		channels[i].vqueue = vqs[i];
 
 		sz = virtqueue_get_vring_size(channels[i].vqueue);
@@ -427,10 +845,10 @@ static int scmi_vio_probe(struct virtio_device *vdev)
 			sz /= DESCRIPTORS_PER_TX_MSG;
 
 		if (sz > MSG_TOKEN_MAX) {
-			dev_info_once(dev,
-				      "%s virtqueue could hold %d messages. Only %ld allowed to be pending.\n",
-				      channels[i].is_rx ? "rx" : "tx",
-				      sz, MSG_TOKEN_MAX);
+			dev_info(dev,
+				 "%s virtqueue could hold %d messages. Only %ld allowed to be pending.\n",
+				 channels[i].is_rx ? "rx" : "tx",
+				 sz, MSG_TOKEN_MAX);
 			sz = MSG_TOKEN_MAX;
 		}
 		channels[i].max_msg = sz;
@@ -460,12 +878,13 @@ static void scmi_vio_remove(struct virtio_device *vdev)
 
 static int scmi_vio_validate(struct virtio_device *vdev)
 {
+#ifdef CONFIG_ARM_SCMI_TRANSPORT_VIRTIO_VERSION1_COMPLIANCE
 	if (!virtio_has_feature(vdev, VIRTIO_F_VERSION_1)) {
 		dev_err(&vdev->dev,
 			"device does not comply with spec version 1.x\n");
 		return -EINVAL;
 	}
-
+#endif
 	return 0;
 }
 
@@ -503,7 +922,9 @@ const struct scmi_desc scmi_virtio_desc = {
 	.transport_init = virtio_scmi_init,
 	.transport_exit = virtio_scmi_exit,
 	.ops = &scmi_virtio_ops,
-	.max_rx_timeout_ms = 60000, /* for non-realtime virtio devices */
+	/* for non-realtime virtio devices */
+	.max_rx_timeout_ms = VIRTIO_MAX_RX_TIMEOUT_MS,
 	.max_msg = 0, /* overridden by virtio_get_max_msg() */
 	.max_msg_size = VIRTIO_SCMI_MAX_MSG_SIZE,
+	.atomic_enabled = IS_ENABLED(CONFIG_ARM_SCMI_TRANSPORT_VIRTIO_ATOMIC_ENABLE),
 };

drivers/firmware/imx/rm.c

@@ -43,3 +43,48 @@ bool imx_sc_rm_is_resource_owned(struct imx_sc_ipc *ipc, u16 resource)
 	return hdr->func;
 }
 EXPORT_SYMBOL(imx_sc_rm_is_resource_owned);
+
+struct imx_sc_msg_rm_get_resource_owner {
+	struct imx_sc_rpc_msg hdr;
+	union {
+		struct {
+			u16 resource;
+		} req;
+		struct {
+			u8 val;
+		} resp;
+	} data;
+} __packed __aligned(4);
+
+/*
+ * This function get @resource partition number
+ *
+ * @param[in]     ipc         IPC handle
+ * @param[in]     resource    resource the control is associated with
+ * @param[out]    pt          pointer to return the partition number
+ *
+ * @return Returns 0 for success and < 0 for errors.
+ */
+int imx_sc_rm_get_resource_owner(struct imx_sc_ipc *ipc, u16 resource, u8 *pt)
+{
+	struct imx_sc_msg_rm_get_resource_owner msg;
+	struct imx_sc_rpc_msg *hdr = &msg.hdr;
+	int ret;
+
+	hdr->ver = IMX_SC_RPC_VERSION;
+	hdr->svc = IMX_SC_RPC_SVC_RM;
+	hdr->func = IMX_SC_RM_FUNC_GET_RESOURCE_OWNER;
+	hdr->size = 2;
+
+	msg.data.req.resource = resource;
+
+	ret = imx_scu_call_rpc(ipc, &msg, true);
+	if (ret)
+		return ret;
+
+	if (pt)
+		*pt = msg.data.resp.val;
+
+	return 0;
+}
+EXPORT_SYMBOL(imx_sc_rm_get_resource_owner);

drivers/firmware/imx/scu-pd.c

@@ -155,6 +155,10 @@ static const struct imx_sc_pd_range imx8qxp_scu_pd_ranges[] = {
 	{ "vpu-pid", IMX_SC_R_VPU_PID0, 8, true, 0 },
 	{ "vpu-dec0", IMX_SC_R_VPU_DEC_0, 1, false, 0 },
 	{ "vpu-enc0", IMX_SC_R_VPU_ENC_0, 1, false, 0 },
+	{ "vpu-enc1", IMX_SC_R_VPU_ENC_1, 1, false, 0 },
+	{ "vpu-mu0", IMX_SC_R_VPU_MU_0, 1, false, 0 },
+	{ "vpu-mu1", IMX_SC_R_VPU_MU_1, 1, false, 0 },
+	{ "vpu-mu2", IMX_SC_R_VPU_MU_2, 1, false, 0 },
 
 	/* GPU SS */
 	{ "gpu0-pid", IMX_SC_R_GPU_0_PID0, 4, true, 0 },

drivers/firmware/qcom_scm.c

@@ -49,26 +49,12 @@ struct qcom_scm_mem_map_info {
 	__le64 mem_size;
 };
 
-#define QCOM_SCM_FLAG_COLDBOOT_CPU0	0x00
-#define QCOM_SCM_FLAG_COLDBOOT_CPU1	0x01
-#define QCOM_SCM_FLAG_COLDBOOT_CPU2	0x08
-#define QCOM_SCM_FLAG_COLDBOOT_CPU3	0x20
-
-#define QCOM_SCM_FLAG_WARMBOOT_CPU0	0x04
-#define QCOM_SCM_FLAG_WARMBOOT_CPU1	0x02
-#define QCOM_SCM_FLAG_WARMBOOT_CPU2	0x10
-#define QCOM_SCM_FLAG_WARMBOOT_CPU3	0x40
-
-struct qcom_scm_wb_entry {
-	int flag;
-	void *entry;
+/* Each bit configures cold/warm boot address for one of the 4 CPUs */
+static const u8 qcom_scm_cpu_cold_bits[QCOM_SCM_BOOT_MAX_CPUS] = {
+	0, BIT(0), BIT(3), BIT(5)
 };
-
-static struct qcom_scm_wb_entry qcom_scm_wb[] = {
-	{ .flag = QCOM_SCM_FLAG_WARMBOOT_CPU0 },
-	{ .flag = QCOM_SCM_FLAG_WARMBOOT_CPU1 },
-	{ .flag = QCOM_SCM_FLAG_WARMBOOT_CPU2 },
-	{ .flag = QCOM_SCM_FLAG_WARMBOOT_CPU3 },
+static const u8 qcom_scm_cpu_warm_bits[QCOM_SCM_BOOT_MAX_CPUS] = {
+	BIT(2), BIT(1), BIT(4), BIT(6)
 };
 
 static const char * const qcom_scm_convention_names[] = {
@@ -179,9 +165,8 @@ found:
 /**
  * qcom_scm_call() - Invoke a syscall in the secure world
  * @dev:	device
- * @svc_id:	service identifier
- * @cmd_id:	command identifier
  * @desc:	Descriptor structure containing arguments and return values
+ * @res:        Structure containing results from SMC/HVC call
  *
  * Sends a command to the SCM and waits for the command to finish processing.
  * This should *only* be called in pre-emptible context.
@@ -205,8 +190,6 @@ static int qcom_scm_call(struct device *dev, const struct qcom_scm_desc *desc,
 /**
  * qcom_scm_call_atomic() - atomic variation of qcom_scm_call()
  * @dev:	device
- * @svc_id:	service identifier
- * @cmd_id:	command identifier
  * @desc:	Descriptor structure containing arguments and return values
  * @res:	Structure containing results from SMC/HVC call
  *
@@ -260,70 +243,10 @@ static bool __qcom_scm_is_call_available(struct device *dev, u32 svc_id,
 	return ret ? false : !!res.result[0];
 }
 
-/**
- * qcom_scm_set_warm_boot_addr() - Set the warm boot address for cpus
- * @entry: Entry point function for the cpus
- * @cpus: The cpumask of cpus that will use the entry point
- *
- * Set the Linux entry point for the SCM to transfer control to when coming
- * out of a power down. CPU power down may be executed on cpuidle or hotplug.
- */
-int qcom_scm_set_warm_boot_addr(void *entry, const cpumask_t *cpus)
+static int qcom_scm_set_boot_addr(void *entry, const u8 *cpu_bits)
 {
-	int ret;
-	int flags = 0;
 	int cpu;
-	struct qcom_scm_desc desc = {
-		.svc = QCOM_SCM_SVC_BOOT,
-		.cmd = QCOM_SCM_BOOT_SET_ADDR,
-		.arginfo = QCOM_SCM_ARGS(2),
-	};
-
-	/*
-	 * Reassign only if we are switching from hotplug entry point
-	 * to cpuidle entry point or vice versa.
-	 */
-	for_each_cpu(cpu, cpus) {
-		if (entry == qcom_scm_wb[cpu].entry)
-			continue;
-		flags |= qcom_scm_wb[cpu].flag;
-	}
-
-	/* No change in entry function */
-	if (!flags)
-		return 0;
-
-	desc.args[0] = flags;
-	desc.args[1] = virt_to_phys(entry);
-
-	ret = qcom_scm_call(__scm->dev, &desc, NULL);
-	if (!ret) {
-		for_each_cpu(cpu, cpus)
-			qcom_scm_wb[cpu].entry = entry;
-	}
-
-	return ret;
-}
-EXPORT_SYMBOL(qcom_scm_set_warm_boot_addr);
-
-/**
- * qcom_scm_set_cold_boot_addr() - Set the cold boot address for cpus
- * @entry: Entry point function for the cpus
- * @cpus: The cpumask of cpus that will use the entry point
- *
- * Set the cold boot address of the cpus. Any cpu outside the supported
- * range would be removed from the cpu present mask.
- */
-int qcom_scm_set_cold_boot_addr(void *entry, const cpumask_t *cpus)
-{
-	int flags = 0;
-	int cpu;
-	int scm_cb_flags[] = {
-		QCOM_SCM_FLAG_COLDBOOT_CPU0,
-		QCOM_SCM_FLAG_COLDBOOT_CPU1,
-		QCOM_SCM_FLAG_COLDBOOT_CPU2,
-		QCOM_SCM_FLAG_COLDBOOT_CPU3,
-	};
+	unsigned int flags = 0;
 	struct qcom_scm_desc desc = {
 		.svc = QCOM_SCM_SVC_BOOT,
 		.cmd = QCOM_SCM_BOOT_SET_ADDR,
@@ -331,14 +254,10 @@ int qcom_scm_set_cold_boot_addr(void *entry, const cpumask_t *cpus)
 		.owner = ARM_SMCCC_OWNER_SIP,
 	};
 
-	if (!cpus || cpumask_empty(cpus))
-		return -EINVAL;
-
-	for_each_cpu(cpu, cpus) {
-		if (cpu < ARRAY_SIZE(scm_cb_flags))
-			flags |= scm_cb_flags[cpu];
-		else
-			set_cpu_present(cpu, false);
+	for_each_present_cpu(cpu) {
+		if (cpu >= QCOM_SCM_BOOT_MAX_CPUS)
+			return -EINVAL;
+		flags |= cpu_bits[cpu];
 	}
 
 	desc.args[0] = flags;
@@ -346,11 +265,61 @@ int qcom_scm_set_cold_boot_addr(void *entry, const cpumask_t *cpus)
 
 	return qcom_scm_call_atomic(__scm ? __scm->dev : NULL, &desc, NULL);
 }
+
+static int qcom_scm_set_boot_addr_mc(void *entry, unsigned int flags)
+{
+	struct qcom_scm_desc desc = {
+		.svc = QCOM_SCM_SVC_BOOT,
+		.cmd = QCOM_SCM_BOOT_SET_ADDR_MC,
+		.owner = ARM_SMCCC_OWNER_SIP,
+		.arginfo = QCOM_SCM_ARGS(6),
+		.args = {
+			virt_to_phys(entry),
+			/* Apply to all CPUs in all affinity levels */
+			~0ULL, ~0ULL, ~0ULL, ~0ULL,
+			flags,
+		},
+	};
+
+	/* Need a device for DMA of the additional arguments */
+	if (!__scm || __get_convention() == SMC_CONVENTION_LEGACY)
+		return -EOPNOTSUPP;
+
+	return qcom_scm_call(__scm->dev, &desc, NULL);
+}
+
+/**
+ * qcom_scm_set_warm_boot_addr() - Set the warm boot address for all cpus
+ * @entry: Entry point function for the cpus
+ *
+ * Set the Linux entry point for the SCM to transfer control to when coming
+ * out of a power down. CPU power down may be executed on cpuidle or hotplug.
+ */
+int qcom_scm_set_warm_boot_addr(void *entry)
+{
+	if (qcom_scm_set_boot_addr_mc(entry, QCOM_SCM_BOOT_MC_FLAG_WARMBOOT))
+		/* Fallback to old SCM call */
+		return qcom_scm_set_boot_addr(entry, qcom_scm_cpu_warm_bits);
+	return 0;
+}
+EXPORT_SYMBOL(qcom_scm_set_warm_boot_addr);
+
+/**
+ * qcom_scm_set_cold_boot_addr() - Set the cold boot address for all cpus
+ * @entry: Entry point function for the cpus
+ */
+int qcom_scm_set_cold_boot_addr(void *entry)
+{
+	if (qcom_scm_set_boot_addr_mc(entry, QCOM_SCM_BOOT_MC_FLAG_COLDBOOT))
+		/* Fallback to old SCM call */
+		return qcom_scm_set_boot_addr(entry, qcom_scm_cpu_cold_bits);
+	return 0;
+}
 EXPORT_SYMBOL(qcom_scm_set_cold_boot_addr);
 
 /**
  * qcom_scm_cpu_power_down() - Power down the cpu
- * @flags - Flags to flush cache
+ * @flags:	Flags to flush cache
  *
  * This is an end point to power down cpu. If there was a pending interrupt,
  * the control would return from this function, otherwise, the cpu jumps to the
@@ -435,10 +404,16 @@ static void qcom_scm_set_download_mode(bool enable)
  *		and optional blob of data used for authenticating the metadata
  *		and the rest of the firmware
  * @size:	size of the metadata
+ * @ctx:	optional metadata context
  *
- * Returns 0 on success.
+ * Return: 0 on success.
+ *
+ * Upon successful return, the PAS metadata context (@ctx) will be used to
+ * track the metadata allocation, this needs to be released by invoking
+ * qcom_scm_pas_metadata_release() by the caller.
  */
-int qcom_scm_pas_init_image(u32 peripheral, const void *metadata, size_t size)
+int qcom_scm_pas_init_image(u32 peripheral, const void *metadata, size_t size,
+			    struct qcom_scm_pas_metadata *ctx)
 {
 	dma_addr_t mdata_phys;
 	void *mdata_buf;
@@ -467,7 +442,7 @@ int qcom_scm_pas_init_image(u32 peripheral, const void *metadata, size_t size)
 
 	ret = qcom_scm_clk_enable();
 	if (ret)
-		goto free_metadata;
+		goto out;
 
 	desc.args[1] = mdata_phys;
 
@@ -475,13 +450,36 @@ int qcom_scm_pas_init_image(u32 peripheral, const void *metadata, size_t size)
 
 	qcom_scm_clk_disable();
 
-free_metadata:
-	dma_free_coherent(__scm->dev, size, mdata_buf, mdata_phys);
+out:
+	if (ret < 0 || !ctx) {
+		dma_free_coherent(__scm->dev, size, mdata_buf, mdata_phys);
+	} else if (ctx) {
+		ctx->ptr = mdata_buf;
+		ctx->phys = mdata_phys;
+		ctx->size = size;
+	}
 
 	return ret ? : res.result[0];
 }
 EXPORT_SYMBOL(qcom_scm_pas_init_image);
 
+/**
+ * qcom_scm_pas_metadata_release() - release metadata context
+ * @ctx:	metadata context
+ */
+void qcom_scm_pas_metadata_release(struct qcom_scm_pas_metadata *ctx)
+{
+	if (!ctx->ptr)
+		return;
+
+	dma_free_coherent(__scm->dev, ctx->size, ctx->ptr, ctx->phys);
+
+	ctx->ptr = NULL;
+	ctx->phys = 0;
+	ctx->size = 0;
+}
+EXPORT_SYMBOL(qcom_scm_pas_metadata_release);
+
 /**
  * qcom_scm_pas_mem_setup() - Prepare the memory related to a given peripheral
  *			      for firmware loading
@@ -749,12 +747,6 @@ int qcom_scm_iommu_secure_ptbl_init(u64 addr, u32 size, u32 spare)
 	};
 	int ret;
 
-	desc.args[0] = addr;
-	desc.args[1] = size;
-	desc.args[2] = spare;
-	desc.arginfo = QCOM_SCM_ARGS(3, QCOM_SCM_RW, QCOM_SCM_VAL,
-				     QCOM_SCM_VAL);
-
 	ret = qcom_scm_call(__scm->dev, &desc, NULL);
 
 	/* the pg table has been initialized already, ignore the error */
@@ -765,6 +757,21 @@ int qcom_scm_iommu_secure_ptbl_init(u64 addr, u32 size, u32 spare)
 }
 EXPORT_SYMBOL(qcom_scm_iommu_secure_ptbl_init);
 
+int qcom_scm_iommu_set_cp_pool_size(u32 spare, u32 size)
+{
+	struct qcom_scm_desc desc = {
+		.svc = QCOM_SCM_SVC_MP,
+		.cmd = QCOM_SCM_MP_IOMMU_SET_CP_POOL_SIZE,
+		.arginfo = QCOM_SCM_ARGS(2),
+		.args[0] = size,
+		.args[1] = spare,
+		.owner = ARM_SMCCC_OWNER_SIP,
+	};
+
+	return qcom_scm_call(__scm->dev, &desc, NULL);
+}
+EXPORT_SYMBOL(qcom_scm_iommu_set_cp_pool_size);
+
 int qcom_scm_mem_protect_video_var(u32 cp_start, u32 cp_size,
 				   u32 cp_nonpixel_start,
 				   u32 cp_nonpixel_size)
@@ -1131,6 +1138,22 @@ int qcom_scm_hdcp_req(struct qcom_scm_hdcp_req *req, u32 req_cnt, u32 *resp)
 }
 EXPORT_SYMBOL(qcom_scm_hdcp_req);
 
+int qcom_scm_iommu_set_pt_format(u32 sec_id, u32 ctx_num, u32 pt_fmt)
+{
+	struct qcom_scm_desc desc = {
+		.svc = QCOM_SCM_SVC_SMMU_PROGRAM,
+		.cmd = QCOM_SCM_SMMU_PT_FORMAT,
+		.arginfo = QCOM_SCM_ARGS(3),
+		.args[0] = sec_id,
+		.args[1] = ctx_num,
+		.args[2] = pt_fmt, /* 0: LPAE AArch32 - 1: AArch64 */
+		.owner = ARM_SMCCC_OWNER_SIP,
+	};
+
+	return qcom_scm_call(__scm->dev, &desc, NULL);
+}
+EXPORT_SYMBOL(qcom_scm_iommu_set_pt_format);
+
 int qcom_scm_qsmmu500_wait_safe_toggle(bool en)
 {
 	struct qcom_scm_desc desc = {

drivers/firmware/qcom_scm.h

@@ -78,8 +78,13 @@ extern int scm_legacy_call(struct device *dev, const struct qcom_scm_desc *desc,
 #define QCOM_SCM_BOOT_SET_ADDR		0x01
 #define QCOM_SCM_BOOT_TERMINATE_PC	0x02
 #define QCOM_SCM_BOOT_SET_DLOAD_MODE	0x10
+#define QCOM_SCM_BOOT_SET_ADDR_MC	0x11
 #define QCOM_SCM_BOOT_SET_REMOTE_STATE	0x0a
 #define QCOM_SCM_FLUSH_FLAG_MASK	0x3
+#define QCOM_SCM_BOOT_MAX_CPUS		4
+#define QCOM_SCM_BOOT_MC_FLAG_AARCH64	BIT(0)
+#define QCOM_SCM_BOOT_MC_FLAG_COLDBOOT	BIT(1)
+#define QCOM_SCM_BOOT_MC_FLAG_WARMBOOT	BIT(2)
 
 #define QCOM_SCM_SVC_PIL		0x02
 #define QCOM_SCM_PIL_PAS_INIT_IMAGE	0x01
@@ -100,6 +105,7 @@ extern int scm_legacy_call(struct device *dev, const struct qcom_scm_desc *desc,
 #define QCOM_SCM_MP_RESTORE_SEC_CFG		0x02
 #define QCOM_SCM_MP_IOMMU_SECURE_PTBL_SIZE	0x03
 #define QCOM_SCM_MP_IOMMU_SECURE_PTBL_INIT	0x04
+#define QCOM_SCM_MP_IOMMU_SET_CP_POOL_SIZE	0x05
 #define QCOM_SCM_MP_VIDEO_VAR			0x08
 #define QCOM_SCM_MP_ASSIGN			0x16
 
@@ -119,6 +125,7 @@ extern int scm_legacy_call(struct device *dev, const struct qcom_scm_desc *desc,
 #define QCOM_SCM_LMH_LIMIT_DCVSH		0x10
 
 #define QCOM_SCM_SVC_SMMU_PROGRAM		0x15
+#define QCOM_SCM_SMMU_PT_FORMAT			0x01
 #define QCOM_SCM_SMMU_CONFIG_ERRATA1		0x03
 #define QCOM_SCM_SMMU_CONFIG_ERRATA1_CLIENT_ALL	0x02
 

drivers/firmware/ti_sci.c

@@ -3412,7 +3412,7 @@ static int ti_sci_probe(struct platform_device *pdev)
 		ret = register_restart_handler(&info->nb);
 		if (ret) {
 			dev_err(dev, "reboot registration fail(%d)\n", ret);
-			return ret;
+			goto out;
 		}
 	}
 

drivers/memory/brcmstb_dpfe.c

@@ -424,7 +424,7 @@ static void __finalize_command(struct brcmstb_dpfe_priv *priv)
 
 	/*
 	 * It depends on the API version which MBOX register we have to write to
-	 * to signal we are done.
+	 * signal we are done.
 	 */
 	release_mbox = (priv->dpfe_api->version < 2)
 			? REG_TO_HOST_MBOX : REG_TO_DCPU_MBOX;

drivers/memory/emif.c

@@ -1025,7 +1025,7 @@ static struct emif_data *__init_or_module get_device_details(
 	temp	= devm_kzalloc(dev, sizeof(*pd), GFP_KERNEL);
 	dev_info = devm_kzalloc(dev, sizeof(*dev_info), GFP_KERNEL);
 
-	if (!emif || !pd || !dev_info) {
+	if (!emif || !temp || !dev_info) {
 		dev_err(dev, "%s:%d: allocation error\n", __func__, __LINE__);
 		goto error;
 	}
@@ -1117,7 +1117,7 @@ static int __init_or_module emif_probe(struct platform_device *pdev)
 {
 	struct emif_data	*emif;
 	struct resource		*res;
-	int			irq;
+	int			irq, ret;
 
 	if (pdev->dev.of_node)
 		emif = of_get_memory_device_details(pdev->dev.of_node, &pdev->dev);
@@ -1147,7 +1147,9 @@ static int __init_or_module emif_probe(struct platform_device *pdev)
 	emif_onetime_settings(emif);
 	emif_debugfs_init(emif);
 	disable_and_clear_all_interrupts(emif);
-	setup_interrupts(emif, irq);
+	ret = setup_interrupts(emif, irq);
+	if (ret)
+		goto error;
 
 	/* One-time actions taken on probing the first device */
 	if (!emif1) {

drivers/memory/fsl_ifc.c

@@ -88,6 +88,7 @@ static int fsl_ifc_ctrl_remove(struct platform_device *dev)
 {
 	struct fsl_ifc_ctrl *ctrl = dev_get_drvdata(&dev->dev);
 
+	of_platform_depopulate(&dev->dev);
 	free_irq(ctrl->nand_irq, ctrl);
 	free_irq(ctrl->irq, ctrl);
 
@@ -285,8 +286,16 @@ static int fsl_ifc_ctrl_probe(struct platform_device *dev)
 		}
 	}
 
+	/* legacy dts may still use "simple-bus" compatible */
+	ret = of_platform_populate(dev->dev.of_node, NULL, NULL,
+					&dev->dev);
+	if (ret)
+		goto err_free_nandirq;
+
 	return 0;
 
+err_free_nandirq:
+	free_irq(fsl_ifc_ctrl_dev->nand_irq, fsl_ifc_ctrl_dev);
 err_free_irq:
 	free_irq(fsl_ifc_ctrl_dev->irq, fsl_ifc_ctrl_dev);
 err_unmap_nandirq:

drivers/memory/mtk-smi.c

@@ -8,6 +8,7 @@
 #include <linux/device.h>
 #include <linux/err.h>
 #include <linux/io.h>
+#include <linux/iopoll.h>
 #include <linux/module.h>
 #include <linux/of.h>
 #include <linux/of_platform.h>
@@ -32,6 +33,10 @@
 #define SMI_DUMMY			0x444
 
 /* SMI LARB */
+#define SMI_LARB_SLP_CON                0xc
+#define SLP_PROT_EN                     BIT(0)
+#define SLP_PROT_RDY                    BIT(16)
+
 #define SMI_LARB_CMD_THRT_CON		0x24
 #define SMI_LARB_THRT_RD_NU_LMT_MSK	GENMASK(7, 4)
 #define SMI_LARB_THRT_RD_NU_LMT		(5 << 4)
@@ -81,6 +86,7 @@
 
 #define MTK_SMI_FLAG_THRT_UPDATE	BIT(0)
 #define MTK_SMI_FLAG_SW_FLAG		BIT(1)
+#define MTK_SMI_FLAG_SLEEP_CTL		BIT(2)
 #define MTK_SMI_CAPS(flags, _x)		(!!((flags) & (_x)))
 
 struct mtk_smi_reg_pair {
@@ -94,8 +100,6 @@ enum mtk_smi_type {
 	MTK_SMI_GEN2_SUB_COMM,	/* gen2 smi sub common */
 };
 
-#define MTK_SMI_CLK_NR_MAX			4
-
 /* larbs: Require apb/smi clocks while gals is optional. */
 static const char * const mtk_smi_larb_clks[] = {"apb", "smi", "gals"};
 #define MTK_SMI_LARB_REQ_CLK_NR		2
@@ -106,6 +110,7 @@ static const char * const mtk_smi_larb_clks[] = {"apb", "smi", "gals"};
  * sub common: Require apb/smi/gals0 clocks in has_gals case. Otherwise, only apb/smi are required.
  */
 static const char * const mtk_smi_common_clks[] = {"apb", "smi", "gals0", "gals1"};
+#define MTK_SMI_CLK_NR_MAX		ARRAY_SIZE(mtk_smi_common_clks)
 #define MTK_SMI_COM_REQ_CLK_NR		2
 #define MTK_SMI_COM_GALS_REQ_CLK_NR	MTK_SMI_CLK_NR_MAX
 #define MTK_SMI_SUB_COM_GALS_REQ_CLK_NR 3
@@ -335,13 +340,19 @@ static const struct mtk_smi_larb_gen mtk_smi_larb_mt8183 = {
 				      /* IPU0 | IPU1 | CCU */
 };
 
+static const struct mtk_smi_larb_gen mtk_smi_larb_mt8186 = {
+	.config_port                = mtk_smi_larb_config_port_gen2_general,
+	.flags_general	            = MTK_SMI_FLAG_SLEEP_CTL,
+};
+
 static const struct mtk_smi_larb_gen mtk_smi_larb_mt8192 = {
 	.config_port                = mtk_smi_larb_config_port_gen2_general,
 };
 
 static const struct mtk_smi_larb_gen mtk_smi_larb_mt8195 = {
 	.config_port                = mtk_smi_larb_config_port_gen2_general,
-	.flags_general	            = MTK_SMI_FLAG_THRT_UPDATE | MTK_SMI_FLAG_SW_FLAG,
+	.flags_general	            = MTK_SMI_FLAG_THRT_UPDATE | MTK_SMI_FLAG_SW_FLAG |
+				      MTK_SMI_FLAG_SLEEP_CTL,
 	.ostd		            = mtk_smi_larb_mt8195_ostd,
 };
 
@@ -352,11 +363,32 @@ static const struct of_device_id mtk_smi_larb_of_ids[] = {
 	{.compatible = "mediatek,mt8167-smi-larb", .data = &mtk_smi_larb_mt8167},
 	{.compatible = "mediatek,mt8173-smi-larb", .data = &mtk_smi_larb_mt8173},
 	{.compatible = "mediatek,mt8183-smi-larb", .data = &mtk_smi_larb_mt8183},
+	{.compatible = "mediatek,mt8186-smi-larb", .data = &mtk_smi_larb_mt8186},
 	{.compatible = "mediatek,mt8192-smi-larb", .data = &mtk_smi_larb_mt8192},
 	{.compatible = "mediatek,mt8195-smi-larb", .data = &mtk_smi_larb_mt8195},
 	{}
 };
 
+static int mtk_smi_larb_sleep_ctrl_enable(struct mtk_smi_larb *larb)
+{
+	int ret;
+	u32 tmp;
+
+	writel_relaxed(SLP_PROT_EN, larb->base + SMI_LARB_SLP_CON);
+	ret = readl_poll_timeout_atomic(larb->base + SMI_LARB_SLP_CON,
+					tmp, !!(tmp & SLP_PROT_RDY), 10, 1000);
+	if (ret) {
+		/* TODO: Reset this larb if it fails here. */
+		dev_err(larb->smi.dev, "sleep ctrl is not ready(0x%x).\n", tmp);
+	}
+	return ret;
+}
+
+static void mtk_smi_larb_sleep_ctrl_disable(struct mtk_smi_larb *larb)
+{
+	writel_relaxed(0, larb->base + SMI_LARB_SLP_CON);
+}
+
 static int mtk_smi_device_link_common(struct device *dev, struct device **com_dev)
 {
 	struct platform_device *smi_com_pdev;
@@ -466,9 +498,12 @@ static int __maybe_unused mtk_smi_larb_resume(struct device *dev)
 	int ret;
 
 	ret = clk_bulk_prepare_enable(larb->smi.clk_num, larb->smi.clks);
-	if (ret < 0)
+	if (ret)
 		return ret;
 
+	if (MTK_SMI_CAPS(larb->larb_gen->flags_general, MTK_SMI_FLAG_SLEEP_CTL))
+		mtk_smi_larb_sleep_ctrl_disable(larb);
+
 	/* Configure the basic setting for this larb */
 	larb_gen->config_port(dev);
 
@@ -478,6 +513,13 @@ static int __maybe_unused mtk_smi_larb_resume(struct device *dev)
 static int __maybe_unused mtk_smi_larb_suspend(struct device *dev)
 {
 	struct mtk_smi_larb *larb = dev_get_drvdata(dev);
+	int ret;
+
+	if (MTK_SMI_CAPS(larb->larb_gen->flags_general, MTK_SMI_FLAG_SLEEP_CTL)) {
+		ret = mtk_smi_larb_sleep_ctrl_enable(larb);
+		if (ret)
+			return ret;
+	}
 
 	clk_bulk_disable_unprepare(larb->smi.clk_num, larb->smi.clks);
 	return 0;
@@ -530,6 +572,12 @@ static const struct mtk_smi_common_plat mtk_smi_common_mt8183 = {
 		    F_MMU1_LARB(7),
 };
 
+static const struct mtk_smi_common_plat mtk_smi_common_mt8186 = {
+	.type     = MTK_SMI_GEN2,
+	.has_gals = true,
+	.bus_sel  = F_MMU1_LARB(1) | F_MMU1_LARB(4) | F_MMU1_LARB(7),
+};
+
 static const struct mtk_smi_common_plat mtk_smi_common_mt8192 = {
 	.type     = MTK_SMI_GEN2,
 	.has_gals = true,
@@ -564,6 +612,7 @@ static const struct of_device_id mtk_smi_common_of_ids[] = {
 	{.compatible = "mediatek,mt8167-smi-common", .data = &mtk_smi_common_gen2},
 	{.compatible = "mediatek,mt8173-smi-common", .data = &mtk_smi_common_gen2},
 	{.compatible = "mediatek,mt8183-smi-common", .data = &mtk_smi_common_mt8183},
+	{.compatible = "mediatek,mt8186-smi-common", .data = &mtk_smi_common_mt8186},
 	{.compatible = "mediatek,mt8192-smi-common", .data = &mtk_smi_common_mt8192},
 	{.compatible = "mediatek,mt8195-smi-common-vdo", .data = &mtk_smi_common_mt8195_vdo},
 	{.compatible = "mediatek,mt8195-smi-common-vpp", .data = &mtk_smi_common_mt8195_vpp},

drivers/memory/of_memory.c

@@ -212,8 +212,10 @@ static int of_lpddr3_do_get_timings(struct device_node *np,
 {
 	int ret;
 
-	/* The 'reg' param required since DT has changed, used as 'max-freq' */
-	ret = of_property_read_u32(np, "reg", &tim->max_freq);
+	ret = of_property_read_u32(np, "max-freq", &tim->max_freq);
+	if (ret)
+		/* Deprecated way of passing max-freq as 'reg' */
+		ret = of_property_read_u32(np, "reg", &tim->max_freq);
 	ret |= of_property_read_u32(np, "min-freq", &tim->min_freq);
 	ret |= of_property_read_u32(np, "tRFC", &tim->tRFC);
 	ret |= of_property_read_u32(np, "tRRD", &tim->tRRD);
@@ -316,14 +318,21 @@ const struct lpddr2_info
 	struct property *prop;
 	const char *cp;
 	int err;
+	u32 revision_id[2];
 
-	err = of_property_read_u32(np, "revision-id1", &info.revision_id1);
-	if (err)
-		info.revision_id1 = -ENOENT;
+	err = of_property_read_u32_array(np, "revision-id", revision_id, 2);
+	if (!err) {
+		info.revision_id1 = revision_id[0];
+		info.revision_id2 = revision_id[1];
+	} else {
+		err = of_property_read_u32(np, "revision-id1", &info.revision_id1);
+		if (err)
+			info.revision_id1 = -ENOENT;
 
-	err = of_property_read_u32(np, "revision-id2", &info.revision_id2);
-	if (err)
-		info.revision_id2 = -ENOENT;
+		err = of_property_read_u32(np, "revision-id2", &info.revision_id2);
+		if (err)
+			info.revision_id2 = -ENOENT;
+	}
 
 	err = of_property_read_u32(np, "io-width", &info.io_width);
 	if (err)

drivers/memory/tegra/Kconfig

@@ -28,6 +28,7 @@ config TEGRA30_EMC
 	default y
 	depends on ARCH_TEGRA_3x_SOC || COMPILE_TEST
 	select PM_OPP
+	select DDR
 	help
 	  This driver is for the External Memory Controller (EMC) found on
 	  Tegra30 chips. The EMC controls the external DRAM on the board.

drivers/memory/tegra/tegra20-emc.c

@@ -540,7 +540,7 @@ static int emc_read_lpddr_mode_register(struct tegra_emc *emc,
 					unsigned int register_addr,
 					unsigned int *register_data)
 {
-	u32 memory_dev = emem_dev + 1;
+	u32 memory_dev = emem_dev ? 1 : 2;
 	u32 val, mr_mask = 0xff;
 	int err;
 

drivers/memory/tegra/tegra210-emc-core.c

@@ -711,7 +711,7 @@ static int tegra210_emc_cd_set_state(struct thermal_cooling_device *cd,
 	return 0;
 }
 
-static struct thermal_cooling_device_ops tegra210_emc_cd_ops = {
+static const struct thermal_cooling_device_ops tegra210_emc_cd_ops = {
 	.get_max_state = tegra210_emc_cd_max_state,
 	.get_cur_state = tegra210_emc_cd_get_state,
 	.set_cur_state = tegra210_emc_cd_set_state,

drivers/memory/tegra/tegra30-emc.c

@@ -9,6 +9,7 @@
  * Copyright (C) 2019 GRATE-DRIVER project
  */
 
+#include <linux/bitfield.h>
 #include <linux/clk.h>
 #include <linux/clk/tegra.h>
 #include <linux/debugfs.h>
@@ -31,11 +32,15 @@
 #include <soc/tegra/common.h>
 #include <soc/tegra/fuse.h>
 
+#include "../jedec_ddr.h"
+#include "../of_memory.h"
+
 #include "mc.h"
 
 #define EMC_INTSTATUS				0x000
 #define EMC_INTMASK				0x004
 #define EMC_DBG					0x008
+#define EMC_ADR_CFG				0x010
 #define EMC_CFG					0x00c
 #define EMC_REFCTRL				0x020
 #define EMC_TIMING_CONTROL			0x028
@@ -81,6 +86,7 @@
 #define EMC_EMRS				0x0d0
 #define EMC_SELF_REF				0x0e0
 #define EMC_MRW					0x0e8
+#define EMC_MRR					0x0ec
 #define EMC_XM2DQSPADCTRL3			0x0f8
 #define EMC_FBIO_SPARE				0x100
 #define EMC_FBIO_CFG5				0x104
@@ -208,6 +214,13 @@
 
 #define EMC_REFRESH_OVERFLOW_INT		BIT(3)
 #define EMC_CLKCHANGE_COMPLETE_INT		BIT(4)
+#define EMC_MRR_DIVLD_INT			BIT(5)
+
+#define EMC_MRR_DEV_SELECTN			GENMASK(31, 30)
+#define EMC_MRR_MRR_MA				GENMASK(23, 16)
+#define EMC_MRR_MRR_DATA			GENMASK(15, 0)
+
+#define EMC_ADR_CFG_EMEM_NUMDEV			BIT(0)
 
 enum emc_dram_type {
 	DRAM_TYPE_DDR3,
@@ -378,6 +391,8 @@ struct tegra_emc {
 
 	/* protect shared rate-change code path */
 	struct mutex rate_lock;
+
+	bool mrr_error;
 };
 
 static int emc_seq_update_timing(struct tegra_emc *emc)
@@ -1008,12 +1023,18 @@ static int emc_load_timings_from_dt(struct tegra_emc *emc,
 	return 0;
 }
 
-static struct device_node *emc_find_node_by_ram_code(struct device *dev)
+static struct device_node *emc_find_node_by_ram_code(struct tegra_emc *emc)
 {
+	struct device *dev = emc->dev;
 	struct device_node *np;
 	u32 value, ram_code;
 	int err;
 
+	if (emc->mrr_error) {
+		dev_warn(dev, "memory timings skipped due to MRR error\n");
+		return NULL;
+	}
+
 	if (of_get_child_count(dev->of_node) == 0) {
 		dev_info_once(dev, "device-tree doesn't have memory timings\n");
 		return NULL;
@@ -1035,11 +1056,73 @@ static struct device_node *emc_find_node_by_ram_code(struct device *dev)
 	return NULL;
 }
 
+static int emc_read_lpddr_mode_register(struct tegra_emc *emc,
+					unsigned int emem_dev,
+					unsigned int register_addr,
+					unsigned int *register_data)
+{
+	u32 memory_dev = emem_dev ? 1 : 2;
+	u32 val, mr_mask = 0xff;
+	int err;
+
+	/* clear data-valid interrupt status */
+	writel_relaxed(EMC_MRR_DIVLD_INT, emc->regs + EMC_INTSTATUS);
+
+	/* issue mode register read request */
+	val  = FIELD_PREP(EMC_MRR_DEV_SELECTN, memory_dev);
+	val |= FIELD_PREP(EMC_MRR_MRR_MA, register_addr);
+
+	writel_relaxed(val, emc->regs + EMC_MRR);
+
+	/* wait for the LPDDR2 data-valid interrupt */
+	err = readl_relaxed_poll_timeout_atomic(emc->regs + EMC_INTSTATUS, val,
+						val & EMC_MRR_DIVLD_INT,
+						1, 100);
+	if (err) {
+		dev_err(emc->dev, "mode register %u read failed: %d\n",
+			register_addr, err);
+		emc->mrr_error = true;
+		return err;
+	}
+
+	/* read out mode register data */
+	val = readl_relaxed(emc->regs + EMC_MRR);
+	*register_data = FIELD_GET(EMC_MRR_MRR_DATA, val) & mr_mask;
+
+	return 0;
+}
+
+static void emc_read_lpddr_sdram_info(struct tegra_emc *emc,
+				      unsigned int emem_dev)
+{
+	union lpddr2_basic_config4 basic_conf4;
+	unsigned int manufacturer_id;
+	unsigned int revision_id1;
+	unsigned int revision_id2;
+
+	/* these registers are standard for all LPDDR JEDEC memory chips */
+	emc_read_lpddr_mode_register(emc, emem_dev, 5, &manufacturer_id);
+	emc_read_lpddr_mode_register(emc, emem_dev, 6, &revision_id1);
+	emc_read_lpddr_mode_register(emc, emem_dev, 7, &revision_id2);
+	emc_read_lpddr_mode_register(emc, emem_dev, 8, &basic_conf4.value);
+
+	dev_info(emc->dev, "SDRAM[dev%u]: manufacturer: 0x%x (%s) rev1: 0x%x rev2: 0x%x prefetch: S%u density: %uMbit iowidth: %ubit\n",
+		 emem_dev, manufacturer_id,
+		 lpddr2_jedec_manufacturer(manufacturer_id),
+		 revision_id1, revision_id2,
+		 4 >> basic_conf4.arch_type,
+		 64 << basic_conf4.density,
+		 32 >> basic_conf4.io_width);
+}
+
 static int emc_setup_hw(struct tegra_emc *emc)
 {
+	u32 fbio_cfg5, emc_cfg, emc_dbg, emc_adr_cfg;
 	u32 intmask = EMC_REFRESH_OVERFLOW_INT;
-	u32 fbio_cfg5, emc_cfg, emc_dbg;
+	static bool print_sdram_info_once;
 	enum emc_dram_type dram_type;
+	const char *dram_type_str;
+	unsigned int emem_numdev;
 
 	fbio_cfg5 = readl_relaxed(emc->regs + EMC_FBIO_CFG5);
 	dram_type = fbio_cfg5 & EMC_FBIO_CFG5_DRAM_TYPE_MASK;
@@ -1076,6 +1159,34 @@ static int emc_setup_hw(struct tegra_emc *emc)
 	emc_dbg &= ~EMC_DBG_FORCE_UPDATE;
 	writel_relaxed(emc_dbg, emc->regs + EMC_DBG);
 
+	switch (dram_type) {
+	case DRAM_TYPE_DDR1:
+		dram_type_str = "DDR1";
+		break;
+	case DRAM_TYPE_LPDDR2:
+		dram_type_str = "LPDDR2";
+		break;
+	case DRAM_TYPE_DDR2:
+		dram_type_str = "DDR2";
+		break;
+	case DRAM_TYPE_DDR3:
+		dram_type_str = "DDR3";
+		break;
+	}
+
+	emc_adr_cfg = readl_relaxed(emc->regs + EMC_ADR_CFG);
+	emem_numdev = FIELD_GET(EMC_ADR_CFG_EMEM_NUMDEV, emc_adr_cfg) + 1;
+
+	dev_info_once(emc->dev, "%u %s %s attached\n", emem_numdev,
+		      dram_type_str, emem_numdev == 2 ? "devices" : "device");
+
+	if (dram_type == DRAM_TYPE_LPDDR2 && !print_sdram_info_once) {
+		while (emem_numdev--)
+			emc_read_lpddr_sdram_info(emc, emem_numdev);
+
+		print_sdram_info_once = true;
+	}
+
 	return 0;
 }
 
@@ -1538,14 +1649,6 @@ static int tegra_emc_probe(struct platform_device *pdev)
 	emc->clk_nb.notifier_call = emc_clk_change_notify;
 	emc->dev = &pdev->dev;
 
-	np = emc_find_node_by_ram_code(&pdev->dev);
-	if (np) {
-		err = emc_load_timings_from_dt(emc, np);
-		of_node_put(np);
-		if (err)
-			return err;
-	}
-
 	emc->regs = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(emc->regs))
 		return PTR_ERR(emc->regs);
@@ -1554,6 +1657,14 @@ static int tegra_emc_probe(struct platform_device *pdev)
 	if (err)
 		return err;
 
+	np = emc_find_node_by_ram_code(emc);
+	if (np) {
+		err = emc_load_timings_from_dt(emc, np);
+		of_node_put(np);
+		if (err)
+			return err;
+	}
+
 	err = platform_get_irq(pdev, 0);
 	if (err < 0)
 		return err;

drivers/remoteproc/qcom_q6v5_mss.c

@@ -928,7 +928,8 @@ static void q6v5proc_halt_axi_port(struct q6v5 *qproc,
 	regmap_write(halt_map, offset + AXI_HALTREQ_REG, 0);
 }
 
-static int q6v5_mpss_init_image(struct q6v5 *qproc, const struct firmware *fw)
+static int q6v5_mpss_init_image(struct q6v5 *qproc, const struct firmware *fw,
+				const char *fw_name)
 {
 	unsigned long dma_attrs = DMA_ATTR_FORCE_CONTIGUOUS;
 	dma_addr_t phys;
@@ -939,7 +940,7 @@ static int q6v5_mpss_init_image(struct q6v5 *qproc, const struct firmware *fw)
 	void *ptr;
 	int ret;
 
-	metadata = qcom_mdt_read_metadata(fw, &size);
+	metadata = qcom_mdt_read_metadata(fw, &size, fw_name, qproc->dev);
 	if (IS_ERR(metadata))
 		return PTR_ERR(metadata);
 
@@ -1289,7 +1290,7 @@ static int q6v5_mpss_load(struct q6v5 *qproc)
 	/* Initialize the RMB validator */
 	writel(0, qproc->rmb_base + RMB_PMI_CODE_LENGTH_REG);
 
-	ret = q6v5_mpss_init_image(qproc, fw);
+	ret = q6v5_mpss_init_image(qproc, fw, qproc->hexagon_mdt_image);
 	if (ret)
 		goto release_firmware;
 

drivers/remoteproc/qcom_q6v5_pas.c

@@ -79,6 +79,8 @@ struct qcom_adsp {
 	struct qcom_rproc_subdev smd_subdev;
 	struct qcom_rproc_ssr ssr_subdev;
 	struct qcom_sysmon *sysmon;
+
+	struct qcom_scm_pas_metadata pas_metadata;
 };
 
 static void adsp_minidump(struct rproc *rproc)
@@ -126,14 +128,34 @@ static void adsp_pds_disable(struct qcom_adsp *adsp, struct device **pds,
 	}
 }
 
+static int adsp_unprepare(struct rproc *rproc)
+{
+	struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
+
+	/*
+	 * adsp_load() did pass pas_metadata to the SCM driver for storing
+	 * metadata context. It might have been released already if
+	 * auth_and_reset() was successful, but in other cases clean it up
+	 * here.
+	 */
+	qcom_scm_pas_metadata_release(&adsp->pas_metadata);
+
+	return 0;
+}
+
 static int adsp_load(struct rproc *rproc, const struct firmware *fw)
 {
 	struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
 	int ret;
 
-	ret = qcom_mdt_load(adsp->dev, fw, rproc->firmware, adsp->pas_id,
-			    adsp->mem_region, adsp->mem_phys, adsp->mem_size,
-			    &adsp->mem_reloc);
+	ret = qcom_mdt_pas_init(adsp->dev, fw, rproc->firmware, adsp->pas_id,
+				adsp->mem_phys, &adsp->pas_metadata);
+	if (ret)
+		return ret;
+
+	ret = qcom_mdt_load_no_init(adsp->dev, fw, rproc->firmware, adsp->pas_id,
+				    adsp->mem_region, adsp->mem_phys, adsp->mem_size,
+				    &adsp->mem_reloc);
 	if (ret)
 		return ret;
 
@@ -185,6 +207,8 @@ static int adsp_start(struct rproc *rproc)
 		goto disable_px_supply;
 	}
 
+	qcom_scm_pas_metadata_release(&adsp->pas_metadata);
+
 	return 0;
 
 disable_px_supply:
@@ -255,6 +279,7 @@ static unsigned long adsp_panic(struct rproc *rproc)
 }
 
 static const struct rproc_ops adsp_ops = {
+	.unprepare = adsp_unprepare,
 	.start = adsp_start,
 	.stop = adsp_stop,
 	.da_to_va = adsp_da_to_va,
@@ -264,6 +289,7 @@ static const struct rproc_ops adsp_ops = {
 };
 
 static const struct rproc_ops adsp_minidump_ops = {
+	.unprepare = adsp_unprepare,
 	.start = adsp_start,
 	.stop = adsp_stop,
 	.da_to_va = adsp_da_to_va,
@@ -853,6 +879,10 @@ static const struct of_device_id adsp_of_match[] = {
 	{ .compatible = "qcom,sm8350-cdsp-pas", .data = &sm8350_cdsp_resource},
 	{ .compatible = "qcom,sm8350-slpi-pas", .data = &sm8350_slpi_resource},
 	{ .compatible = "qcom,sm8350-mpss-pas", .data = &mpss_resource_init},
+	{ .compatible = "qcom,sm8450-adsp-pas", .data = &sm8350_adsp_resource},
+	{ .compatible = "qcom,sm8450-cdsp-pas", .data = &sm8350_cdsp_resource},
+	{ .compatible = "qcom,sm8450-slpi-pas", .data = &sm8350_slpi_resource},
+	{ .compatible = "qcom,sm8450-mpss-pas", .data = &mpss_resource_init},
 	{ },
 };
 MODULE_DEVICE_TABLE(of, adsp_of_match);

drivers/soc/amlogic/meson-secure-pwrc.c

@@ -11,6 +11,7 @@
 #include <linux/platform_device.h>
 #include <linux/pm_domain.h>
 #include <dt-bindings/power/meson-a1-power.h>
+#include <dt-bindings/power/meson-s4-power.h>
 #include <linux/arm-smccc.h>
 #include <linux/firmware/meson/meson_sm.h>
 #include <linux/module.h>
@@ -119,6 +120,18 @@ static struct meson_secure_pwrc_domain_desc a1_pwrc_domains[] = {
 	SEC_PD(RSA,	0),
 };
 
+static struct meson_secure_pwrc_domain_desc s4_pwrc_domains[] = {
+	SEC_PD(S4_DOS_HEVC,	0),
+	SEC_PD(S4_DOS_VDEC,	0),
+	SEC_PD(S4_VPU_HDMI,	0),
+	SEC_PD(S4_USB_COMB,	0),
+	SEC_PD(S4_GE2D,		0),
+	/* ETH is for ethernet online wakeup, and should be always on */
+	SEC_PD(S4_ETH,		GENPD_FLAG_ALWAYS_ON),
+	SEC_PD(S4_DEMOD,	0),
+	SEC_PD(S4_AUDIO,	0),
+};
+
 static int meson_secure_pwrc_probe(struct platform_device *pdev)
 {
 	int i;
@@ -187,11 +200,20 @@ static struct meson_secure_pwrc_domain_data meson_secure_a1_pwrc_data = {
 	.count = ARRAY_SIZE(a1_pwrc_domains),
 };
 
+static struct meson_secure_pwrc_domain_data meson_secure_s4_pwrc_data = {
+	.domains = s4_pwrc_domains,
+	.count = ARRAY_SIZE(s4_pwrc_domains),
+};
+
 static const struct of_device_id meson_secure_pwrc_match_table[] = {
 	{
 		.compatible = "amlogic,meson-a1-pwrc",
 		.data = &meson_secure_a1_pwrc_data,
 	},
+	{
+		.compatible = "amlogic,meson-s4-pwrc",
+		.data = &meson_secure_s4_pwrc_data,
+	},
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, meson_secure_pwrc_match_table);

drivers/soc/atmel/soc.c

@@ -156,6 +156,9 @@ static const struct at91_soc socs[] __initconst = {
 	AT91_SOC(SAMA5D2_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
 		 AT91_CIDR_VERSION_MASK, SAMA5D28C_LD2G_EXID_MATCH,
 		 "sama5d28c 256MiB LPDDR2 SiP", "sama5d2"),
+	AT91_SOC(SAMA5D2_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
+		 AT91_CIDR_VERSION_MASK, SAMA5D29CN_EXID_MATCH,
+		 "sama5d29", "sama5d2"),
 	AT91_SOC(SAMA5D3_CIDR_MATCH, AT91_CIDR_MATCH_MASK,
 		 AT91_CIDR_VERSION_MASK, SAMA5D31_EXID_MATCH,
 		 "sama5d31", "sama5d3"),

drivers/soc/atmel/soc.h

@@ -95,6 +95,7 @@ at91_soc_init(const struct at91_soc *socs);
 #define SAMA5D28C_LD2G_EXID_MATCH	0x00000072
 #define SAMA5D28CU_EXID_MATCH		0x00000010
 #define SAMA5D28CN_EXID_MATCH		0x00000020
+#define SAMA5D29CN_EXID_MATCH		0x00000023
 
 #define SAMA5D3_CIDR_MATCH		0x0a5c07c0
 #define SAMA5D31_EXID_MATCH		0x00444300

drivers/soc/imx/imx8m-blk-ctrl.c

@@ -15,6 +15,7 @@
 
 #include <dt-bindings/power/imx8mm-power.h>
 #include <dt-bindings/power/imx8mn-power.h>
+#include <dt-bindings/power/imx8mq-power.h>
 
 #define BLK_SFT_RSTN	0x0
 #define BLK_CLK_EN	0x4
@@ -589,6 +590,68 @@ static const struct imx8m_blk_ctrl_data imx8mn_disp_blk_ctl_dev_data = {
 	.num_domains = ARRAY_SIZE(imx8mn_disp_blk_ctl_domain_data),
 };
 
+static int imx8mq_vpu_power_notifier(struct notifier_block *nb,
+				     unsigned long action, void *data)
+{
+	struct imx8m_blk_ctrl *bc = container_of(nb, struct imx8m_blk_ctrl,
+						 power_nb);
+
+	if (action != GENPD_NOTIFY_ON && action != GENPD_NOTIFY_PRE_OFF)
+		return NOTIFY_OK;
+
+	/*
+	 * The ADB in the VPUMIX domain has no separate reset and clock
+	 * enable bits, but is ungated and reset together with the VPUs. The
+	 * reset and clock enable inputs to the ADB is a logical OR of the
+	 * VPU bits. In order to set the G2 fuse bits, the G2 clock must
+	 * also be enabled.
+	 */
+	regmap_set_bits(bc->regmap, BLK_SFT_RSTN, BIT(0) | BIT(1));
+	regmap_set_bits(bc->regmap, BLK_CLK_EN, BIT(0) | BIT(1));
+
+	if (action == GENPD_NOTIFY_ON) {
+		/*
+		 * On power up we have no software backchannel to the GPC to
+		 * wait for the ADB handshake to happen, so we just delay for a
+		 * bit. On power down the GPC driver waits for the handshake.
+		 */
+		udelay(5);
+
+		/* set "fuse" bits to enable the VPUs */
+		regmap_set_bits(bc->regmap, 0x8, 0xffffffff);
+		regmap_set_bits(bc->regmap, 0xc, 0xffffffff);
+		regmap_set_bits(bc->regmap, 0x10, 0xffffffff);
+	}
+
+	return NOTIFY_OK;
+}
+
+static const struct imx8m_blk_ctrl_domain_data imx8mq_vpu_blk_ctl_domain_data[] = {
+	[IMX8MQ_VPUBLK_PD_G1] = {
+		.name = "vpublk-g1",
+		.clk_names = (const char *[]){ "g1", },
+		.num_clks = 1,
+		.gpc_name = "g1",
+		.rst_mask = BIT(1),
+		.clk_mask = BIT(1),
+	},
+	[IMX8MQ_VPUBLK_PD_G2] = {
+		.name = "vpublk-g2",
+		.clk_names = (const char *[]){ "g2", },
+		.num_clks = 1,
+		.gpc_name = "g2",
+		.rst_mask = BIT(0),
+		.clk_mask = BIT(0),
+	},
+};
+
+static const struct imx8m_blk_ctrl_data imx8mq_vpu_blk_ctl_dev_data = {
+	.max_reg = 0x14,
+	.power_notifier_fn = imx8mq_vpu_power_notifier,
+	.domains = imx8mq_vpu_blk_ctl_domain_data,
+	.num_domains = ARRAY_SIZE(imx8mq_vpu_blk_ctl_domain_data),
+};
+
 static const struct of_device_id imx8m_blk_ctrl_of_match[] = {
 	{
 		.compatible = "fsl,imx8mm-vpu-blk-ctrl",
@@ -599,6 +662,9 @@ static const struct of_device_id imx8m_blk_ctrl_of_match[] = {
 	}, {
 		.compatible = "fsl,imx8mn-disp-blk-ctrl",
 		.data = &imx8mn_disp_blk_ctl_dev_data
+	}, {
+		.compatible = "fsl,imx8mq-vpu-blk-ctrl",
+		.data = &imx8mq_vpu_blk_ctl_dev_data
 	}, {
 		/* Sentinel */
 	}

drivers/soc/imx/soc-imx.c

@@ -40,9 +40,6 @@ static int __init imx_soc_device_init(void)
 	if (!__mxc_cpu_type)
 		return 0;
 
-	if (of_machine_is_compatible("fsl,ls1021a"))
-		return 0;
-
 	soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
 	if (!soc_dev_attr)
 		return -ENOMEM;

drivers/soc/mediatek/mt8167-pm-domains.h

@@ -18,6 +18,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8167[] = {
 		.name = "mm",
 		.sta_mask = PWR_STATUS_DISP,
 		.ctl_offs = SPM_DIS_PWR_CON,
+		.pwr_sta_offs = SPM_PWR_STATUS,
+		.pwr_sta2nd_offs = SPM_PWR_STATUS_2ND,
 		.sram_pdn_bits = GENMASK(11, 8),
 		.sram_pdn_ack_bits = GENMASK(12, 12),
 		.bp_infracfg = {
@@ -30,6 +32,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8167[] = {
 		.name = "vdec",
 		.sta_mask = PWR_STATUS_VDEC,
 		.ctl_offs = SPM_VDE_PWR_CON,
+		.pwr_sta_offs = SPM_PWR_STATUS,
+		.pwr_sta2nd_offs = SPM_PWR_STATUS_2ND,
 		.sram_pdn_bits = GENMASK(8, 8),
 		.sram_pdn_ack_bits = GENMASK(12, 12),
 		.caps = MTK_SCPD_ACTIVE_WAKEUP,
@@ -38,6 +42,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8167[] = {
 		.name = "isp",
 		.sta_mask = PWR_STATUS_ISP,
 		.ctl_offs = SPM_ISP_PWR_CON,
+		.pwr_sta_offs = SPM_PWR_STATUS,
+		.pwr_sta2nd_offs = SPM_PWR_STATUS_2ND,
 		.sram_pdn_bits = GENMASK(11, 8),
 		.sram_pdn_ack_bits = GENMASK(13, 12),
 		.caps = MTK_SCPD_ACTIVE_WAKEUP,
@@ -46,6 +52,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8167[] = {
 		.name = "mfg_async",
 		.sta_mask = MT8167_PWR_STATUS_MFG_ASYNC,
 		.ctl_offs = SPM_MFG_ASYNC_PWR_CON,
+		.pwr_sta_offs = SPM_PWR_STATUS,
+		.pwr_sta2nd_offs = SPM_PWR_STATUS_2ND,
 		.sram_pdn_bits = 0,
 		.sram_pdn_ack_bits = 0,
 		.bp_infracfg = {
@@ -57,6 +65,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8167[] = {
 		.name = "mfg_2d",
 		.sta_mask = MT8167_PWR_STATUS_MFG_2D,
 		.ctl_offs = SPM_MFG_2D_PWR_CON,
+		.pwr_sta_offs = SPM_PWR_STATUS,
+		.pwr_sta2nd_offs = SPM_PWR_STATUS_2ND,
 		.sram_pdn_bits = GENMASK(11, 8),
 		.sram_pdn_ack_bits = GENMASK(15, 12),
 	},
@@ -64,6 +74,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8167[] = {
 		.name = "mfg",
 		.sta_mask = PWR_STATUS_MFG,
 		.ctl_offs = SPM_MFG_PWR_CON,
+		.pwr_sta_offs = SPM_PWR_STATUS,
+		.pwr_sta2nd_offs = SPM_PWR_STATUS_2ND,
 		.sram_pdn_bits = GENMASK(11, 8),
 		.sram_pdn_ack_bits = GENMASK(15, 12),
 	},
@@ -71,6 +83,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8167[] = {
 		.name = "conn",
 		.sta_mask = PWR_STATUS_CONN,
 		.ctl_offs = SPM_CONN_PWR_CON,
+		.pwr_sta_offs = SPM_PWR_STATUS,
+		.pwr_sta2nd_offs = SPM_PWR_STATUS_2ND,
 		.sram_pdn_bits = GENMASK(8, 8),
 		.sram_pdn_ack_bits = 0,
 		.caps = MTK_SCPD_ACTIVE_WAKEUP,
@@ -85,8 +99,6 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8167[] = {
 static const struct scpsys_soc_data mt8167_scpsys_data = {
 	.domains_data = scpsys_domain_data_mt8167,
 	.num_domains = ARRAY_SIZE(scpsys_domain_data_mt8167),
-	.pwr_sta_offs = SPM_PWR_STATUS,
-	.pwr_sta2nd_offs = SPM_PWR_STATUS_2ND,
 };
 
 #endif /* __SOC_MEDIATEK_MT8167_PM_DOMAINS_H */

drivers/soc/mediatek/mt8173-pm-domains.h

@@ -15,6 +15,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8173[] = {
 		.name = "vdec",
 		.sta_mask = PWR_STATUS_VDEC,
 		.ctl_offs = SPM_VDE_PWR_CON,
+		.pwr_sta_offs = SPM_PWR_STATUS,
+		.pwr_sta2nd_offs = SPM_PWR_STATUS_2ND,
 		.sram_pdn_bits = GENMASK(11, 8),
 		.sram_pdn_ack_bits = GENMASK(12, 12),
 	},
@@ -22,6 +24,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8173[] = {
 		.name = "venc",
 		.sta_mask = PWR_STATUS_VENC,
 		.ctl_offs = SPM_VEN_PWR_CON,
+		.pwr_sta_offs = SPM_PWR_STATUS,
+		.pwr_sta2nd_offs = SPM_PWR_STATUS_2ND,
 		.sram_pdn_bits = GENMASK(11, 8),
 		.sram_pdn_ack_bits = GENMASK(15, 12),
 	},
@@ -29,6 +33,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8173[] = {
 		.name = "isp",
 		.sta_mask = PWR_STATUS_ISP,
 		.ctl_offs = SPM_ISP_PWR_CON,
+		.pwr_sta_offs = SPM_PWR_STATUS,
+		.pwr_sta2nd_offs = SPM_PWR_STATUS_2ND,
 		.sram_pdn_bits = GENMASK(11, 8),
 		.sram_pdn_ack_bits = GENMASK(13, 12),
 	},
@@ -36,6 +42,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8173[] = {
 		.name = "mm",
 		.sta_mask = PWR_STATUS_DISP,
 		.ctl_offs = SPM_DIS_PWR_CON,
+		.pwr_sta_offs = SPM_PWR_STATUS,
+		.pwr_sta2nd_offs = SPM_PWR_STATUS_2ND,
 		.sram_pdn_bits = GENMASK(11, 8),
 		.sram_pdn_ack_bits = GENMASK(12, 12),
 		.bp_infracfg = {
@@ -47,6 +55,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8173[] = {
 		.name = "venc_lt",
 		.sta_mask = PWR_STATUS_VENC_LT,
 		.ctl_offs = SPM_VEN2_PWR_CON,
+		.pwr_sta_offs = SPM_PWR_STATUS,
+		.pwr_sta2nd_offs = SPM_PWR_STATUS_2ND,
 		.sram_pdn_bits = GENMASK(11, 8),
 		.sram_pdn_ack_bits = GENMASK(15, 12),
 	},
@@ -54,6 +64,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8173[] = {
 		.name = "audio",
 		.sta_mask = PWR_STATUS_AUDIO,
 		.ctl_offs = SPM_AUDIO_PWR_CON,
+		.pwr_sta_offs = SPM_PWR_STATUS,
+		.pwr_sta2nd_offs = SPM_PWR_STATUS_2ND,
 		.sram_pdn_bits = GENMASK(11, 8),
 		.sram_pdn_ack_bits = GENMASK(15, 12),
 	},
@@ -61,6 +73,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8173[] = {
 		.name = "usb",
 		.sta_mask = PWR_STATUS_USB,
 		.ctl_offs = SPM_USB_PWR_CON,
+		.pwr_sta_offs = SPM_PWR_STATUS,
+		.pwr_sta2nd_offs = SPM_PWR_STATUS_2ND,
 		.sram_pdn_bits = GENMASK(11, 8),
 		.sram_pdn_ack_bits = GENMASK(15, 12),
 		.caps = MTK_SCPD_ACTIVE_WAKEUP,
@@ -69,6 +83,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8173[] = {
 		.name = "mfg_async",
 		.sta_mask = PWR_STATUS_MFG_ASYNC,
 		.ctl_offs = SPM_MFG_ASYNC_PWR_CON,
+		.pwr_sta_offs = SPM_PWR_STATUS,
+		.pwr_sta2nd_offs = SPM_PWR_STATUS_2ND,
 		.sram_pdn_bits = GENMASK(11, 8),
 		.sram_pdn_ack_bits = 0,
 		.caps = MTK_SCPD_DOMAIN_SUPPLY,
@@ -77,6 +93,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8173[] = {
 		.name = "mfg_2d",
 		.sta_mask = PWR_STATUS_MFG_2D,
 		.ctl_offs = SPM_MFG_2D_PWR_CON,
+		.pwr_sta_offs = SPM_PWR_STATUS,
+		.pwr_sta2nd_offs = SPM_PWR_STATUS_2ND,
 		.sram_pdn_bits = GENMASK(11, 8),
 		.sram_pdn_ack_bits = GENMASK(13, 12),
 	},
@@ -84,6 +102,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8173[] = {
 		.name = "mfg",
 		.sta_mask = PWR_STATUS_MFG,
 		.ctl_offs = SPM_MFG_PWR_CON,
+		.pwr_sta_offs = SPM_PWR_STATUS,
+		.pwr_sta2nd_offs = SPM_PWR_STATUS_2ND,
 		.sram_pdn_bits = GENMASK(13, 8),
 		.sram_pdn_ack_bits = GENMASK(21, 16),
 		.bp_infracfg = {
@@ -98,8 +118,6 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8173[] = {
 static const struct scpsys_soc_data mt8173_scpsys_data = {
 	.domains_data = scpsys_domain_data_mt8173,
 	.num_domains = ARRAY_SIZE(scpsys_domain_data_mt8173),
-	.pwr_sta_offs = SPM_PWR_STATUS,
-	.pwr_sta2nd_offs = SPM_PWR_STATUS_2ND,
 };
 
 #endif /* __SOC_MEDIATEK_MT8173_PM_DOMAINS_H */

drivers/soc/mediatek/mt8183-mmsys.h

@@ -25,6 +25,8 @@
 #define MT8183_RDMA0_SOUT_COLOR0		0x1
 #define MT8183_RDMA1_SOUT_DSI0			0x1
 
+#define MT8183_MMSYS_SW0_RST_B			0x140
+
 static const struct mtk_mmsys_routes mmsys_mt8183_routing_table[] = {
 	{
 		DDP_COMPONENT_OVL0, DDP_COMPONENT_OVL_2L0,

drivers/soc/mediatek/mt8183-pm-domains.h

@@ -15,6 +15,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8183[] = {
 		.name = "audio",
 		.sta_mask = PWR_STATUS_AUDIO,
 		.ctl_offs = 0x0314,
+		.pwr_sta_offs = 0x0180,
+		.pwr_sta2nd_offs = 0x0184,
 		.sram_pdn_bits = GENMASK(11, 8),
 		.sram_pdn_ack_bits = GENMASK(15, 12),
 	},
@@ -22,6 +24,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8183[] = {
 		.name = "conn",
 		.sta_mask = PWR_STATUS_CONN,
 		.ctl_offs = 0x032c,
+		.pwr_sta_offs = 0x0180,
+		.pwr_sta2nd_offs = 0x0184,
 		.sram_pdn_bits = 0,
 		.sram_pdn_ack_bits = 0,
 		.bp_infracfg = {
@@ -33,6 +37,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8183[] = {
 		.name = "mfg_async",
 		.sta_mask = PWR_STATUS_MFG_ASYNC,
 		.ctl_offs = 0x0334,
+		.pwr_sta_offs = 0x0180,
+		.pwr_sta2nd_offs = 0x0184,
 		.sram_pdn_bits = 0,
 		.sram_pdn_ack_bits = 0,
 	},
@@ -40,6 +46,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8183[] = {
 		.name = "mfg",
 		.sta_mask = PWR_STATUS_MFG,
 		.ctl_offs = 0x0338,
+		.pwr_sta_offs = 0x0180,
+		.pwr_sta2nd_offs = 0x0184,
 		.sram_pdn_bits = GENMASK(8, 8),
 		.sram_pdn_ack_bits = GENMASK(12, 12),
 		.caps = MTK_SCPD_DOMAIN_SUPPLY,
@@ -48,6 +56,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8183[] = {
 		.name = "mfg_core0",
 		.sta_mask = BIT(7),
 		.ctl_offs = 0x034c,
+		.pwr_sta_offs = 0x0180,
+		.pwr_sta2nd_offs = 0x0184,
 		.sram_pdn_bits = GENMASK(8, 8),
 		.sram_pdn_ack_bits = GENMASK(12, 12),
 	},
@@ -55,6 +65,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8183[] = {
 		.name = "mfg_core1",
 		.sta_mask = BIT(20),
 		.ctl_offs = 0x0310,
+		.pwr_sta_offs = 0x0180,
+		.pwr_sta2nd_offs = 0x0184,
 		.sram_pdn_bits = GENMASK(8, 8),
 		.sram_pdn_ack_bits = GENMASK(12, 12),
 	},
@@ -62,6 +74,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8183[] = {
 		.name = "mfg_2d",
 		.sta_mask = PWR_STATUS_MFG_2D,
 		.ctl_offs = 0x0348,
+		.pwr_sta_offs = 0x0180,
+		.pwr_sta2nd_offs = 0x0184,
 		.sram_pdn_bits = GENMASK(8, 8),
 		.sram_pdn_ack_bits = GENMASK(12, 12),
 		.bp_infracfg = {
@@ -75,6 +89,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8183[] = {
 		.name = "disp",
 		.sta_mask = PWR_STATUS_DISP,
 		.ctl_offs = 0x030c,
+		.pwr_sta_offs = 0x0180,
+		.pwr_sta2nd_offs = 0x0184,
 		.sram_pdn_bits = GENMASK(8, 8),
 		.sram_pdn_ack_bits = GENMASK(12, 12),
 		.bp_infracfg = {
@@ -94,6 +110,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8183[] = {
 		.name = "cam",
 		.sta_mask = BIT(25),
 		.ctl_offs = 0x0344,
+		.pwr_sta_offs = 0x0180,
+		.pwr_sta2nd_offs = 0x0184,
 		.sram_pdn_bits = GENMASK(9, 8),
 		.sram_pdn_ack_bits = GENMASK(13, 12),
 		.bp_infracfg = {
@@ -117,6 +135,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8183[] = {
 		.name = "isp",
 		.sta_mask = PWR_STATUS_ISP,
 		.ctl_offs = 0x0308,
+		.pwr_sta_offs = 0x0180,
+		.pwr_sta2nd_offs = 0x0184,
 		.sram_pdn_bits = GENMASK(9, 8),
 		.sram_pdn_ack_bits = GENMASK(13, 12),
 		.bp_infracfg = {
@@ -140,6 +160,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8183[] = {
 		.name = "vdec",
 		.sta_mask = BIT(31),
 		.ctl_offs = 0x0300,
+		.pwr_sta_offs = 0x0180,
+		.pwr_sta2nd_offs = 0x0184,
 		.sram_pdn_bits = GENMASK(8, 8),
 		.sram_pdn_ack_bits = GENMASK(12, 12),
 		.bp_smi = {
@@ -153,6 +175,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8183[] = {
 		.name = "venc",
 		.sta_mask = PWR_STATUS_VENC,
 		.ctl_offs = 0x0304,
+		.pwr_sta_offs = 0x0180,
+		.pwr_sta2nd_offs = 0x0184,
 		.sram_pdn_bits = GENMASK(11, 8),
 		.sram_pdn_ack_bits = GENMASK(15, 12),
 		.bp_smi = {
@@ -166,6 +190,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8183[] = {
 		.name = "vpu_top",
 		.sta_mask = BIT(26),
 		.ctl_offs = 0x0324,
+		.pwr_sta_offs = 0x0180,
+		.pwr_sta2nd_offs = 0x0184,
 		.sram_pdn_bits = GENMASK(8, 8),
 		.sram_pdn_ack_bits = GENMASK(12, 12),
 		.bp_infracfg = {
@@ -193,6 +219,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8183[] = {
 		.name = "vpu_core0",
 		.sta_mask = BIT(27),
 		.ctl_offs = 0x33c,
+		.pwr_sta_offs = 0x0180,
+		.pwr_sta2nd_offs = 0x0184,
 		.sram_pdn_bits = GENMASK(11, 8),
 		.sram_pdn_ack_bits = GENMASK(13, 12),
 		.bp_infracfg = {
@@ -211,6 +239,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8183[] = {
 		.name = "vpu_core1",
 		.sta_mask = BIT(28),
 		.ctl_offs = 0x0340,
+		.pwr_sta_offs = 0x0180,
+		.pwr_sta2nd_offs = 0x0184,
 		.sram_pdn_bits = GENMASK(11, 8),
 		.sram_pdn_ack_bits = GENMASK(13, 12),
 		.bp_infracfg = {
@@ -230,8 +260,6 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8183[] = {
 static const struct scpsys_soc_data mt8183_scpsys_data = {
 	.domains_data = scpsys_domain_data_mt8183,
 	.num_domains = ARRAY_SIZE(scpsys_domain_data_mt8183),
-	.pwr_sta_offs = 0x0180,
-	.pwr_sta2nd_offs = 0x0184
 };
 
 #endif /* __SOC_MEDIATEK_MT8183_PM_DOMAINS_H */

drivers/soc/mediatek/mt8186-mmsys.h

@@ -0,0 +1,115 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef __SOC_MEDIATEK_MT8186_MMSYS_H
+#define __SOC_MEDIATEK_MT8186_MMSYS_H
+
+#define MT8186_MMSYS_OVL_CON			0xF04
+#define MT8186_MMSYS_OVL0_CON_MASK			0x3
+#define MT8186_MMSYS_OVL0_2L_CON_MASK			0xC
+#define MT8186_OVL0_GO_BLEND				BIT(0)
+#define MT8186_OVL0_GO_BG				BIT(1)
+#define MT8186_OVL0_2L_GO_BLEND				BIT(2)
+#define MT8186_OVL0_2L_GO_BG				BIT(3)
+#define MT8186_DISP_RDMA0_SOUT_SEL		0xF0C
+#define MT8186_RDMA0_SOUT_SEL_MASK			0xF
+#define MT8186_RDMA0_SOUT_TO_DSI0			(0)
+#define MT8186_RDMA0_SOUT_TO_COLOR0			(1)
+#define MT8186_RDMA0_SOUT_TO_DPI0			(2)
+#define MT8186_DISP_OVL0_2L_MOUT_EN		0xF14
+#define MT8186_OVL0_2L_MOUT_EN_MASK			0xF
+#define MT8186_OVL0_2L_MOUT_TO_RDMA0			BIT(0)
+#define MT8186_OVL0_2L_MOUT_TO_RDMA1			BIT(3)
+#define MT8186_DISP_OVL0_MOUT_EN		0xF18
+#define MT8186_OVL0_MOUT_EN_MASK			0xF
+#define MT8186_OVL0_MOUT_TO_RDMA0			BIT(0)
+#define MT8186_OVL0_MOUT_TO_RDMA1			BIT(3)
+#define MT8186_DISP_DITHER0_MOUT_EN		0xF20
+#define MT8186_DITHER0_MOUT_EN_MASK			0xF
+#define MT8186_DITHER0_MOUT_TO_DSI0			BIT(0)
+#define MT8186_DITHER0_MOUT_TO_RDMA1			BIT(2)
+#define MT8186_DITHER0_MOUT_TO_DPI0			BIT(3)
+#define MT8186_DISP_RDMA0_SEL_IN		0xF28
+#define MT8186_RDMA0_SEL_IN_MASK			0xF
+#define MT8186_RDMA0_FROM_OVL0				0
+#define MT8186_RDMA0_FROM_OVL0_2L			2
+#define MT8186_DISP_DSI0_SEL_IN			0xF30
+#define MT8186_DSI0_SEL_IN_MASK				0xF
+#define MT8186_DSI0_FROM_RDMA0				0
+#define MT8186_DSI0_FROM_DITHER0			1
+#define MT8186_DSI0_FROM_RDMA1				2
+#define MT8186_DISP_RDMA1_MOUT_EN		0xF3C
+#define MT8186_RDMA1_MOUT_EN_MASK			0xF
+#define MT8186_RDMA1_MOUT_TO_DPI0_SEL			BIT(0)
+#define MT8186_RDMA1_MOUT_TO_DSI0_SEL			BIT(2)
+#define MT8186_DISP_RDMA1_SEL_IN		0xF40
+#define MT8186_RDMA1_SEL_IN_MASK			0xF
+#define MT8186_RDMA1_FROM_OVL0				0
+#define MT8186_RDMA1_FROM_OVL0_2L			2
+#define MT8186_RDMA1_FROM_DITHER0			3
+#define MT8186_DISP_DPI0_SEL_IN			0xF44
+#define MT8186_DPI0_SEL_IN_MASK				0xF
+#define MT8186_DPI0_FROM_RDMA1				0
+#define MT8186_DPI0_FROM_DITHER0			1
+#define MT8186_DPI0_FROM_RDMA0				2
+
+#define MT8186_MMSYS_SW0_RST_B				0x160
+
+static const struct mtk_mmsys_routes mmsys_mt8186_routing_table[] = {
+	{
+		DDP_COMPONENT_OVL0, DDP_COMPONENT_RDMA0,
+		MT8186_DISP_OVL0_MOUT_EN, MT8186_OVL0_MOUT_EN_MASK,
+		MT8186_OVL0_MOUT_TO_RDMA0
+	},
+	{
+		DDP_COMPONENT_OVL0, DDP_COMPONENT_RDMA0,
+		MT8186_DISP_RDMA0_SEL_IN, MT8186_RDMA0_SEL_IN_MASK,
+		MT8186_RDMA0_FROM_OVL0
+	},
+	{
+		DDP_COMPONENT_OVL0, DDP_COMPONENT_RDMA0,
+		MT8186_MMSYS_OVL_CON, MT8186_MMSYS_OVL0_CON_MASK,
+		MT8186_OVL0_GO_BLEND
+	},
+	{
+		DDP_COMPONENT_RDMA0, DDP_COMPONENT_COLOR0,
+		MT8186_DISP_RDMA0_SOUT_SEL, MT8186_RDMA0_SOUT_SEL_MASK,
+		MT8186_RDMA0_SOUT_TO_COLOR0
+	},
+	{
+		DDP_COMPONENT_DITHER, DDP_COMPONENT_DSI0,
+		MT8186_DISP_DITHER0_MOUT_EN, MT8186_DITHER0_MOUT_EN_MASK,
+		MT8186_DITHER0_MOUT_TO_DSI0,
+	},
+	{
+		DDP_COMPONENT_DITHER, DDP_COMPONENT_DSI0,
+		MT8186_DISP_DSI0_SEL_IN, MT8186_DSI0_SEL_IN_MASK,
+		MT8186_DSI0_FROM_DITHER0
+	},
+	{
+		DDP_COMPONENT_OVL_2L0, DDP_COMPONENT_RDMA1,
+		MT8186_DISP_OVL0_2L_MOUT_EN, MT8186_OVL0_2L_MOUT_EN_MASK,
+		MT8186_OVL0_2L_MOUT_TO_RDMA1
+	},
+	{
+		DDP_COMPONENT_OVL_2L0, DDP_COMPONENT_RDMA1,
+		MT8186_DISP_RDMA1_SEL_IN, MT8186_RDMA1_SEL_IN_MASK,
+		MT8186_RDMA1_FROM_OVL0_2L
+	},
+	{
+		DDP_COMPONENT_OVL_2L0, DDP_COMPONENT_RDMA1,
+		MT8186_MMSYS_OVL_CON, MT8186_MMSYS_OVL0_2L_CON_MASK,
+		MT8186_OVL0_2L_GO_BLEND
+	},
+	{
+		DDP_COMPONENT_RDMA1, DDP_COMPONENT_DPI0,
+		MT8186_DISP_RDMA1_MOUT_EN, MT8186_RDMA1_MOUT_EN_MASK,
+		MT8186_RDMA1_MOUT_TO_DPI0_SEL
+	},
+	{
+		DDP_COMPONENT_RDMA1, DDP_COMPONENT_DPI0,
+		MT8186_DISP_DPI0_SEL_IN, MT8186_DPI0_SEL_IN_MASK,
+		MT8186_DPI0_FROM_RDMA1
+	},
+};
+
+#endif /* __SOC_MEDIATEK_MT8186_MMSYS_H */

drivers/soc/mediatek/mt8186-pm-domains.h

@@ -0,0 +1,344 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2022 MediaTek Inc.
+ * Author: Chun-Jie Chen <chun-jie.chen@mediatek.com>
+ */
+
+#ifndef __SOC_MEDIATEK_MT8186_PM_DOMAINS_H
+#define __SOC_MEDIATEK_MT8186_PM_DOMAINS_H
+
+#include "mtk-pm-domains.h"
+#include <dt-bindings/power/mt8186-power.h>
+
+/*
+ * MT8186 power domain support
+ */
+
+static const struct scpsys_domain_data scpsys_domain_data_mt8186[] = {
+	[MT8186_POWER_DOMAIN_MFG0] = {
+		.name = "mfg0",
+		.sta_mask = BIT(2),
+		.ctl_offs = 0x308,
+		.pwr_sta_offs = 0x16C,
+		.pwr_sta2nd_offs = 0x170,
+		.sram_pdn_bits = BIT(8),
+		.sram_pdn_ack_bits = BIT(12),
+		.caps = MTK_SCPD_KEEP_DEFAULT_OFF | MTK_SCPD_DOMAIN_SUPPLY,
+	},
+	[MT8186_POWER_DOMAIN_MFG1] = {
+		.name = "mfg1",
+		.sta_mask = BIT(3),
+		.ctl_offs = 0x30c,
+		.pwr_sta_offs = 0x16C,
+		.pwr_sta2nd_offs = 0x170,
+		.sram_pdn_bits = BIT(8),
+		.sram_pdn_ack_bits = BIT(12),
+		.bp_infracfg = {
+			BUS_PROT_WR_IGN(MT8186_TOP_AXI_PROT_EN_1_MFG1_STEP1,
+				MT8186_TOP_AXI_PROT_EN_1_SET,
+				MT8186_TOP_AXI_PROT_EN_1_CLR,
+				MT8186_TOP_AXI_PROT_EN_1_STA),
+			BUS_PROT_WR_IGN(MT8186_TOP_AXI_PROT_EN_MFG1_STEP2,
+				MT8186_TOP_AXI_PROT_EN_SET,
+				MT8186_TOP_AXI_PROT_EN_CLR,
+				MT8186_TOP_AXI_PROT_EN_STA),
+			BUS_PROT_WR_IGN(MT8186_TOP_AXI_PROT_EN_MFG1_STEP3,
+				MT8186_TOP_AXI_PROT_EN_SET,
+				MT8186_TOP_AXI_PROT_EN_CLR,
+				MT8186_TOP_AXI_PROT_EN_STA),
+			BUS_PROT_WR_IGN(MT8186_TOP_AXI_PROT_EN_1_MFG1_STEP4,
+				MT8186_TOP_AXI_PROT_EN_1_SET,
+				MT8186_TOP_AXI_PROT_EN_1_CLR,
+				MT8186_TOP_AXI_PROT_EN_1_STA),
+		},
+		.caps = MTK_SCPD_KEEP_DEFAULT_OFF,
+	},
+	[MT8186_POWER_DOMAIN_MFG2] = {
+		.name = "mfg2",
+		.sta_mask = BIT(4),
+		.ctl_offs = 0x310,
+		.pwr_sta_offs = 0x16C,
+		.pwr_sta2nd_offs = 0x170,
+		.sram_pdn_bits = BIT(8),
+		.sram_pdn_ack_bits = BIT(12),
+		.caps = MTK_SCPD_KEEP_DEFAULT_OFF,
+	},
+	[MT8186_POWER_DOMAIN_MFG3] = {
+		.name = "mfg3",
+		.sta_mask = BIT(5),
+		.ctl_offs = 0x314,
+		.pwr_sta_offs = 0x16C,
+		.pwr_sta2nd_offs = 0x170,
+		.sram_pdn_bits = BIT(8),
+		.sram_pdn_ack_bits = BIT(12),
+		.caps = MTK_SCPD_KEEP_DEFAULT_OFF,
+	},
+	[MT8186_POWER_DOMAIN_SSUSB] = {
+		.name = "ssusb",
+		.sta_mask = BIT(20),
+		.ctl_offs = 0x9F0,
+		.pwr_sta_offs = 0x16C,
+		.pwr_sta2nd_offs = 0x170,
+		.sram_pdn_bits = BIT(8),
+		.sram_pdn_ack_bits = BIT(12),
+		.caps = MTK_SCPD_ACTIVE_WAKEUP,
+	},
+	[MT8186_POWER_DOMAIN_SSUSB_P1] = {
+		.name = "ssusb_p1",
+		.sta_mask = BIT(19),
+		.ctl_offs = 0x9F4,
+		.pwr_sta_offs = 0x16C,
+		.pwr_sta2nd_offs = 0x170,
+		.sram_pdn_bits = BIT(8),
+		.sram_pdn_ack_bits = BIT(12),
+		.caps = MTK_SCPD_ACTIVE_WAKEUP,
+	},
+	[MT8186_POWER_DOMAIN_DIS] = {
+		.name = "dis",
+		.sta_mask = BIT(21),
+		.ctl_offs = 0x354,
+		.pwr_sta_offs = 0x16C,
+		.pwr_sta2nd_offs = 0x170,
+		.sram_pdn_bits = BIT(8),
+		.sram_pdn_ack_bits = BIT(12),
+		.bp_infracfg = {
+			BUS_PROT_WR_IGN(MT8186_TOP_AXI_PROT_EN_1_DIS_STEP1,
+				MT8186_TOP_AXI_PROT_EN_1_SET,
+				MT8186_TOP_AXI_PROT_EN_1_CLR,
+				MT8186_TOP_AXI_PROT_EN_1_STA),
+			BUS_PROT_WR_IGN(MT8186_TOP_AXI_PROT_EN_DIS_STEP2,
+				MT8186_TOP_AXI_PROT_EN_SET,
+				MT8186_TOP_AXI_PROT_EN_CLR,
+				MT8186_TOP_AXI_PROT_EN_STA),
+		},
+	},
+	[MT8186_POWER_DOMAIN_IMG] = {
+		.name = "img",
+		.sta_mask = BIT(13),
+		.ctl_offs = 0x334,
+		.pwr_sta_offs = 0x16C,
+		.pwr_sta2nd_offs = 0x170,
+		.sram_pdn_bits = BIT(8),
+		.sram_pdn_ack_bits = BIT(12),
+		.bp_infracfg = {
+			BUS_PROT_WR_IGN(MT8186_TOP_AXI_PROT_EN_1_IMG_STEP1,
+				MT8186_TOP_AXI_PROT_EN_1_SET,
+				MT8186_TOP_AXI_PROT_EN_1_CLR,
+				MT8186_TOP_AXI_PROT_EN_1_STA),
+			BUS_PROT_WR_IGN(MT8186_TOP_AXI_PROT_EN_1_IMG_STEP2,
+				MT8186_TOP_AXI_PROT_EN_1_SET,
+				MT8186_TOP_AXI_PROT_EN_1_CLR,
+				MT8186_TOP_AXI_PROT_EN_1_STA),
+		},
+		.caps = MTK_SCPD_KEEP_DEFAULT_OFF,
+	},
+	[MT8186_POWER_DOMAIN_IMG2] = {
+		.name = "img2",
+		.sta_mask = BIT(14),
+		.ctl_offs = 0x338,
+		.pwr_sta_offs = 0x16C,
+		.pwr_sta2nd_offs = 0x170,
+		.sram_pdn_bits = BIT(8),
+		.sram_pdn_ack_bits = BIT(12),
+		.caps = MTK_SCPD_KEEP_DEFAULT_OFF,
+	},
+	[MT8186_POWER_DOMAIN_IPE] = {
+		.name = "ipe",
+		.sta_mask = BIT(15),
+		.ctl_offs = 0x33C,
+		.pwr_sta_offs = 0x16C,
+		.pwr_sta2nd_offs = 0x170,
+		.sram_pdn_bits = BIT(8),
+		.sram_pdn_ack_bits = BIT(12),
+		.bp_infracfg = {
+			BUS_PROT_WR_IGN(MT8186_TOP_AXI_PROT_EN_1_IPE_STEP1,
+				MT8186_TOP_AXI_PROT_EN_1_SET,
+				MT8186_TOP_AXI_PROT_EN_1_CLR,
+				MT8186_TOP_AXI_PROT_EN_1_STA),
+			BUS_PROT_WR_IGN(MT8186_TOP_AXI_PROT_EN_1_IPE_STEP2,
+				MT8186_TOP_AXI_PROT_EN_1_SET,
+				MT8186_TOP_AXI_PROT_EN_1_CLR,
+				MT8186_TOP_AXI_PROT_EN_1_STA),
+		},
+		.caps = MTK_SCPD_KEEP_DEFAULT_OFF,
+	},
+	[MT8186_POWER_DOMAIN_CAM] = {
+		.name = "cam",
+		.sta_mask = BIT(23),
+		.ctl_offs = 0x35C,
+		.pwr_sta_offs = 0x16C,
+		.pwr_sta2nd_offs = 0x170,
+		.sram_pdn_bits = BIT(8),
+		.sram_pdn_ack_bits = BIT(12),
+		.bp_infracfg = {
+			BUS_PROT_WR_IGN(MT8186_TOP_AXI_PROT_EN_1_CAM_STEP1,
+				MT8186_TOP_AXI_PROT_EN_1_SET,
+				MT8186_TOP_AXI_PROT_EN_1_CLR,
+				MT8186_TOP_AXI_PROT_EN_1_STA),
+			BUS_PROT_WR_IGN(MT8186_TOP_AXI_PROT_EN_1_CAM_STEP2,
+				MT8186_TOP_AXI_PROT_EN_1_SET,
+				MT8186_TOP_AXI_PROT_EN_1_CLR,
+				MT8186_TOP_AXI_PROT_EN_1_STA),
+		},
+		.caps = MTK_SCPD_KEEP_DEFAULT_OFF,
+	},
+	[MT8186_POWER_DOMAIN_CAM_RAWA] = {
+		.name = "cam_rawa",
+		.sta_mask = BIT(24),
+		.ctl_offs = 0x360,
+		.pwr_sta_offs = 0x16C,
+		.pwr_sta2nd_offs = 0x170,
+		.sram_pdn_bits = BIT(8),
+		.sram_pdn_ack_bits = BIT(12),
+		.caps = MTK_SCPD_KEEP_DEFAULT_OFF,
+	},
+	[MT8186_POWER_DOMAIN_CAM_RAWB] = {
+		.name = "cam_rawb",
+		.sta_mask = BIT(25),
+		.ctl_offs = 0x364,
+		.pwr_sta_offs = 0x16C,
+		.pwr_sta2nd_offs = 0x170,
+		.sram_pdn_bits = BIT(8),
+		.sram_pdn_ack_bits = BIT(12),
+		.caps = MTK_SCPD_KEEP_DEFAULT_OFF,
+	},
+	[MT8186_POWER_DOMAIN_VENC] = {
+		.name = "venc",
+		.sta_mask = BIT(18),
+		.ctl_offs = 0x348,
+		.pwr_sta_offs = 0x16C,
+		.pwr_sta2nd_offs = 0x170,
+		.sram_pdn_bits = BIT(8),
+		.sram_pdn_ack_bits = BIT(12),
+		.bp_infracfg = {
+			BUS_PROT_WR_IGN(MT8186_TOP_AXI_PROT_EN_1_VENC_STEP1,
+				MT8186_TOP_AXI_PROT_EN_1_SET,
+				MT8186_TOP_AXI_PROT_EN_1_CLR,
+				MT8186_TOP_AXI_PROT_EN_1_STA),
+			BUS_PROT_WR_IGN(MT8186_TOP_AXI_PROT_EN_1_VENC_STEP2,
+				MT8186_TOP_AXI_PROT_EN_1_SET,
+				MT8186_TOP_AXI_PROT_EN_1_CLR,
+				MT8186_TOP_AXI_PROT_EN_1_STA),
+		},
+		.caps = MTK_SCPD_KEEP_DEFAULT_OFF,
+	},
+	[MT8186_POWER_DOMAIN_VDEC] = {
+		.name = "vdec",
+		.sta_mask = BIT(16),
+		.ctl_offs = 0x340,
+		.pwr_sta_offs = 0x16C,
+		.pwr_sta2nd_offs = 0x170,
+		.sram_pdn_bits = BIT(8),
+		.sram_pdn_ack_bits = BIT(12),
+		.bp_infracfg = {
+			BUS_PROT_WR_IGN(MT8186_TOP_AXI_PROT_EN_1_VDEC_STEP1,
+				MT8186_TOP_AXI_PROT_EN_1_SET,
+				MT8186_TOP_AXI_PROT_EN_1_CLR,
+				MT8186_TOP_AXI_PROT_EN_1_STA),
+			BUS_PROT_WR_IGN(MT8186_TOP_AXI_PROT_EN_1_VDEC_STEP2,
+				MT8186_TOP_AXI_PROT_EN_1_SET,
+				MT8186_TOP_AXI_PROT_EN_1_CLR,
+				MT8186_TOP_AXI_PROT_EN_1_STA),
+		},
+		.caps = MTK_SCPD_KEEP_DEFAULT_OFF,
+	},
+	[MT8186_POWER_DOMAIN_WPE] = {
+		.name = "wpe",
+		.sta_mask = BIT(0),
+		.ctl_offs = 0x3F8,
+		.pwr_sta_offs = 0x16C,
+		.pwr_sta2nd_offs = 0x170,
+		.sram_pdn_bits = BIT(8),
+		.sram_pdn_ack_bits = BIT(12),
+		.bp_infracfg = {
+			BUS_PROT_WR_IGN(MT8186_TOP_AXI_PROT_EN_2_WPE_STEP1,
+				MT8186_TOP_AXI_PROT_EN_2_SET,
+				MT8186_TOP_AXI_PROT_EN_2_CLR,
+				MT8186_TOP_AXI_PROT_EN_2_STA),
+			BUS_PROT_WR_IGN(MT8186_TOP_AXI_PROT_EN_2_WPE_STEP2,
+				MT8186_TOP_AXI_PROT_EN_2_SET,
+				MT8186_TOP_AXI_PROT_EN_2_CLR,
+				MT8186_TOP_AXI_PROT_EN_2_STA),
+		},
+		.caps = MTK_SCPD_KEEP_DEFAULT_OFF,
+	},
+	[MT8186_POWER_DOMAIN_CONN_ON] = {
+		.name = "conn_on",
+		.sta_mask = BIT(1),
+		.ctl_offs = 0x304,
+		.pwr_sta_offs = 0x16C,
+		.pwr_sta2nd_offs = 0x170,
+		.bp_infracfg = {
+			BUS_PROT_WR_IGN(MT8186_TOP_AXI_PROT_EN_1_CONN_ON_STEP1,
+				MT8186_TOP_AXI_PROT_EN_1_SET,
+				MT8186_TOP_AXI_PROT_EN_1_CLR,
+				MT8186_TOP_AXI_PROT_EN_1_STA),
+			BUS_PROT_WR_IGN(MT8186_TOP_AXI_PROT_EN_CONN_ON_STEP2,
+				MT8186_TOP_AXI_PROT_EN_SET,
+				MT8186_TOP_AXI_PROT_EN_CLR,
+				MT8186_TOP_AXI_PROT_EN_STA),
+			BUS_PROT_WR_IGN(MT8186_TOP_AXI_PROT_EN_CONN_ON_STEP3,
+				MT8186_TOP_AXI_PROT_EN_SET,
+				MT8186_TOP_AXI_PROT_EN_CLR,
+				MT8186_TOP_AXI_PROT_EN_STA),
+			BUS_PROT_WR_IGN(MT8186_TOP_AXI_PROT_EN_CONN_ON_STEP4,
+				MT8186_TOP_AXI_PROT_EN_SET,
+				MT8186_TOP_AXI_PROT_EN_CLR,
+				MT8186_TOP_AXI_PROT_EN_STA),
+		},
+		.caps = MTK_SCPD_KEEP_DEFAULT_OFF | MTK_SCPD_ACTIVE_WAKEUP,
+	},
+	[MT8186_POWER_DOMAIN_CSIRX_TOP] = {
+		.name = "csirx_top",
+		.sta_mask = BIT(6),
+		.ctl_offs = 0x318,
+		.pwr_sta_offs = 0x16C,
+		.pwr_sta2nd_offs = 0x170,
+		.sram_pdn_bits = BIT(8),
+		.sram_pdn_ack_bits = BIT(12),
+		.caps = MTK_SCPD_KEEP_DEFAULT_OFF,
+	},
+	[MT8186_POWER_DOMAIN_ADSP_AO] = {
+		.name = "adsp_ao",
+		.sta_mask = BIT(17),
+		.ctl_offs = 0x9FC,
+		.pwr_sta_offs = 0x16C,
+		.pwr_sta2nd_offs = 0x170,
+		.caps = MTK_SCPD_KEEP_DEFAULT_OFF,
+	},
+	[MT8186_POWER_DOMAIN_ADSP_INFRA] = {
+		.name = "adsp_infra",
+		.sta_mask = BIT(10),
+		.ctl_offs = 0x9F8,
+		.pwr_sta_offs = 0x16C,
+		.pwr_sta2nd_offs = 0x170,
+		.caps = MTK_SCPD_KEEP_DEFAULT_OFF,
+	},
+	[MT8186_POWER_DOMAIN_ADSP_TOP] = {
+		.name = "adsp_top",
+		.sta_mask = BIT(31),
+		.ctl_offs = 0x3E4,
+		.pwr_sta_offs = 0x16C,
+		.pwr_sta2nd_offs = 0x170,
+		.sram_pdn_bits = BIT(8),
+		.sram_pdn_ack_bits = BIT(12),
+		.bp_infracfg = {
+			BUS_PROT_WR_IGN(MT8186_TOP_AXI_PROT_EN_3_ADSP_TOP_STEP1,
+				MT8186_TOP_AXI_PROT_EN_3_SET,
+				MT8186_TOP_AXI_PROT_EN_3_CLR,
+				MT8186_TOP_AXI_PROT_EN_3_STA),
+			BUS_PROT_WR_IGN(MT8186_TOP_AXI_PROT_EN_3_ADSP_TOP_STEP2,
+				MT8186_TOP_AXI_PROT_EN_3_SET,
+				MT8186_TOP_AXI_PROT_EN_3_CLR,
+				MT8186_TOP_AXI_PROT_EN_3_STA),
+		},
+		.caps = MTK_SCPD_SRAM_ISO | MTK_SCPD_KEEP_DEFAULT_OFF | MTK_SCPD_ACTIVE_WAKEUP,
+	},
+};
+
+static const struct scpsys_soc_data mt8186_scpsys_data = {
+	.domains_data = scpsys_domain_data_mt8186,
+	.num_domains = ARRAY_SIZE(scpsys_domain_data_mt8186),
+};
+
+#endif /* __SOC_MEDIATEK_MT8186_PM_DOMAINS_H */

drivers/soc/mediatek/mt8192-pm-domains.h

@@ -15,6 +15,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8192[] = {
 		.name = "audio",
 		.sta_mask = BIT(21),
 		.ctl_offs = 0x0354,
+		.pwr_sta_offs = 0x016c,
+		.pwr_sta2nd_offs = 0x0170,
 		.sram_pdn_bits = GENMASK(8, 8),
 		.sram_pdn_ack_bits = GENMASK(12, 12),
 		.bp_infracfg = {
@@ -28,6 +30,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8192[] = {
 		.name = "conn",
 		.sta_mask = PWR_STATUS_CONN,
 		.ctl_offs = 0x0304,
+		.pwr_sta_offs = 0x016c,
+		.pwr_sta2nd_offs = 0x0170,
 		.sram_pdn_bits = 0,
 		.sram_pdn_ack_bits = 0,
 		.bp_infracfg = {
@@ -50,6 +54,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8192[] = {
 		.name = "mfg0",
 		.sta_mask = BIT(2),
 		.ctl_offs = 0x0308,
+		.pwr_sta_offs = 0x016c,
+		.pwr_sta2nd_offs = 0x0170,
 		.sram_pdn_bits = GENMASK(8, 8),
 		.sram_pdn_ack_bits = GENMASK(12, 12),
 	},
@@ -57,6 +63,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8192[] = {
 		.name = "mfg1",
 		.sta_mask = BIT(3),
 		.ctl_offs = 0x030c,
+		.pwr_sta_offs = 0x016c,
+		.pwr_sta2nd_offs = 0x0170,
 		.sram_pdn_bits = GENMASK(8, 8),
 		.sram_pdn_ack_bits = GENMASK(12, 12),
 		.bp_infracfg = {
@@ -82,6 +90,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8192[] = {
 		.name = "mfg2",
 		.sta_mask = BIT(4),
 		.ctl_offs = 0x0310,
+		.pwr_sta_offs = 0x016c,
+		.pwr_sta2nd_offs = 0x0170,
 		.sram_pdn_bits = GENMASK(8, 8),
 		.sram_pdn_ack_bits = GENMASK(12, 12),
 	},
@@ -89,6 +99,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8192[] = {
 		.name = "mfg3",
 		.sta_mask = BIT(5),
 		.ctl_offs = 0x0314,
+		.pwr_sta_offs = 0x016c,
+		.pwr_sta2nd_offs = 0x0170,
 		.sram_pdn_bits = GENMASK(8, 8),
 		.sram_pdn_ack_bits = GENMASK(12, 12),
 	},
@@ -96,6 +108,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8192[] = {
 		.name = "mfg4",
 		.sta_mask = BIT(6),
 		.ctl_offs = 0x0318,
+		.pwr_sta_offs = 0x016c,
+		.pwr_sta2nd_offs = 0x0170,
 		.sram_pdn_bits = GENMASK(8, 8),
 		.sram_pdn_ack_bits = GENMASK(12, 12),
 	},
@@ -103,6 +117,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8192[] = {
 		.name = "mfg5",
 		.sta_mask = BIT(7),
 		.ctl_offs = 0x031c,
+		.pwr_sta_offs = 0x016c,
+		.pwr_sta2nd_offs = 0x0170,
 		.sram_pdn_bits = GENMASK(8, 8),
 		.sram_pdn_ack_bits = GENMASK(12, 12),
 	},
@@ -110,6 +126,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8192[] = {
 		.name = "mfg6",
 		.sta_mask = BIT(8),
 		.ctl_offs = 0x0320,
+		.pwr_sta_offs = 0x016c,
+		.pwr_sta2nd_offs = 0x0170,
 		.sram_pdn_bits = GENMASK(8, 8),
 		.sram_pdn_ack_bits = GENMASK(12, 12),
 	},
@@ -117,6 +135,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8192[] = {
 		.name = "disp",
 		.sta_mask = BIT(20),
 		.ctl_offs = 0x0350,
+		.pwr_sta_offs = 0x016c,
+		.pwr_sta2nd_offs = 0x0170,
 		.sram_pdn_bits = GENMASK(8, 8),
 		.sram_pdn_ack_bits = GENMASK(12, 12),
 		.bp_infracfg = {
@@ -146,6 +166,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8192[] = {
 		.name = "ipe",
 		.sta_mask = BIT(14),
 		.ctl_offs = 0x0338,
+		.pwr_sta_offs = 0x016c,
+		.pwr_sta2nd_offs = 0x0170,
 		.sram_pdn_bits = GENMASK(8, 8),
 		.sram_pdn_ack_bits = GENMASK(12, 12),
 		.bp_infracfg = {
@@ -163,6 +185,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8192[] = {
 		.name = "isp",
 		.sta_mask = BIT(12),
 		.ctl_offs = 0x0330,
+		.pwr_sta_offs = 0x016c,
+		.pwr_sta2nd_offs = 0x0170,
 		.sram_pdn_bits = GENMASK(8, 8),
 		.sram_pdn_ack_bits = GENMASK(12, 12),
 		.bp_infracfg = {
@@ -180,6 +204,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8192[] = {
 		.name = "isp2",
 		.sta_mask = BIT(13),
 		.ctl_offs = 0x0334,
+		.pwr_sta_offs = 0x016c,
+		.pwr_sta2nd_offs = 0x0170,
 		.sram_pdn_bits = GENMASK(8, 8),
 		.sram_pdn_ack_bits = GENMASK(12, 12),
 		.bp_infracfg = {
@@ -197,6 +223,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8192[] = {
 		.name = "mdp",
 		.sta_mask = BIT(19),
 		.ctl_offs = 0x034c,
+		.pwr_sta_offs = 0x016c,
+		.pwr_sta2nd_offs = 0x0170,
 		.sram_pdn_bits = GENMASK(8, 8),
 		.sram_pdn_ack_bits = GENMASK(12, 12),
 		.bp_infracfg = {
@@ -214,6 +242,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8192[] = {
 		.name = "venc",
 		.sta_mask = BIT(17),
 		.ctl_offs = 0x0344,
+		.pwr_sta_offs = 0x016c,
+		.pwr_sta2nd_offs = 0x0170,
 		.sram_pdn_bits = GENMASK(8, 8),
 		.sram_pdn_ack_bits = GENMASK(12, 12),
 		.bp_infracfg = {
@@ -231,6 +261,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8192[] = {
 		.name = "vdec",
 		.sta_mask = BIT(15),
 		.ctl_offs = 0x033c,
+		.pwr_sta_offs = 0x016c,
+		.pwr_sta2nd_offs = 0x0170,
 		.sram_pdn_bits = GENMASK(8, 8),
 		.sram_pdn_ack_bits = GENMASK(12, 12),
 		.bp_infracfg = {
@@ -248,6 +280,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8192[] = {
 		.name = "vdec2",
 		.sta_mask = BIT(16),
 		.ctl_offs = 0x0340,
+		.pwr_sta_offs = 0x016c,
+		.pwr_sta2nd_offs = 0x0170,
 		.sram_pdn_bits = GENMASK(8, 8),
 		.sram_pdn_ack_bits = GENMASK(12, 12),
 	},
@@ -255,6 +289,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8192[] = {
 		.name = "cam",
 		.sta_mask = BIT(23),
 		.ctl_offs = 0x035c,
+		.pwr_sta_offs = 0x016c,
+		.pwr_sta2nd_offs = 0x0170,
 		.sram_pdn_bits = GENMASK(8, 8),
 		.sram_pdn_ack_bits = GENMASK(12, 12),
 		.bp_infracfg = {
@@ -284,6 +320,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8192[] = {
 		.name = "cam_rawa",
 		.sta_mask = BIT(24),
 		.ctl_offs = 0x0360,
+		.pwr_sta_offs = 0x016c,
+		.pwr_sta2nd_offs = 0x0170,
 		.sram_pdn_bits = GENMASK(8, 8),
 		.sram_pdn_ack_bits = GENMASK(12, 12),
 	},
@@ -291,6 +329,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8192[] = {
 		.name = "cam_rawb",
 		.sta_mask = BIT(25),
 		.ctl_offs = 0x0364,
+		.pwr_sta_offs = 0x016c,
+		.pwr_sta2nd_offs = 0x0170,
 		.sram_pdn_bits = GENMASK(8, 8),
 		.sram_pdn_ack_bits = GENMASK(12, 12),
 	},
@@ -298,6 +338,8 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8192[] = {
 		.name = "cam_rawc",
 		.sta_mask = BIT(26),
 		.ctl_offs = 0x0368,
+		.pwr_sta_offs = 0x016c,
+		.pwr_sta2nd_offs = 0x0170,
 		.sram_pdn_bits = GENMASK(8, 8),
 		.sram_pdn_ack_bits = GENMASK(12, 12),
 	},
@@ -306,8 +348,6 @@ static const struct scpsys_domain_data scpsys_domain_data_mt8192[] = {
 static const struct scpsys_soc_data mt8192_scpsys_data = {
 	.domains_data = scpsys_domain_data_mt8192,
 	.num_domains = ARRAY_SIZE(scpsys_domain_data_mt8192),
-	.pwr_sta_offs = 0x016c,
-	.pwr_sta2nd_offs = 0x0170,
 };
 
 #endif /* __SOC_MEDIATEK_MT8192_PM_DOMAINS_H */

drivers/soc/mediatek/mt8195-pm-domains.h

@@ -0,0 +1,613 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2021 MediaTek Inc.
+ * Author: Chun-Jie Chen <chun-jie.chen@mediatek.com>
+ */
+
+#ifndef __SOC_MEDIATEK_MT8195_PM_DOMAINS_H
+#define __SOC_MEDIATEK_MT8195_PM_DOMAINS_H
+
+#include "mtk-pm-domains.h"
+#include <dt-bindings/power/mt8195-power.h>
+
+/*
+ * MT8195 power domain support
+ */
+
+static const struct scpsys_domain_data scpsys_domain_data_mt8195[] = {
+	[MT8195_POWER_DOMAIN_PCIE_MAC_P0] = {
+		.name = "pcie_mac_p0",
+		.sta_mask = BIT(11),
+		.ctl_offs = 0x328,
+		.pwr_sta_offs = 0x174,
+		.pwr_sta2nd_offs = 0x178,
+		.sram_pdn_bits = GENMASK(8, 8),
+		.sram_pdn_ack_bits = GENMASK(12, 12),
+		.bp_infracfg = {
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_VDNR_PCIE_MAC_P0,
+				    MT8195_TOP_AXI_PROT_EN_VDNR_SET,
+				    MT8195_TOP_AXI_PROT_EN_VDNR_CLR,
+				    MT8195_TOP_AXI_PROT_EN_VDNR_STA1),
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_VDNR_1_PCIE_MAC_P0,
+				    MT8195_TOP_AXI_PROT_EN_VDNR_1_SET,
+				    MT8195_TOP_AXI_PROT_EN_VDNR_1_CLR,
+				    MT8195_TOP_AXI_PROT_EN_VDNR_1_STA1),
+		},
+	},
+	[MT8195_POWER_DOMAIN_PCIE_MAC_P1] = {
+		.name = "pcie_mac_p1",
+		.sta_mask = BIT(12),
+		.ctl_offs = 0x32C,
+		.pwr_sta_offs = 0x174,
+		.pwr_sta2nd_offs = 0x178,
+		.sram_pdn_bits = GENMASK(8, 8),
+		.sram_pdn_ack_bits = GENMASK(12, 12),
+		.bp_infracfg = {
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_VDNR_PCIE_MAC_P1,
+				    MT8195_TOP_AXI_PROT_EN_VDNR_SET,
+				    MT8195_TOP_AXI_PROT_EN_VDNR_CLR,
+				    MT8195_TOP_AXI_PROT_EN_VDNR_STA1),
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_VDNR_1_PCIE_MAC_P1,
+				    MT8195_TOP_AXI_PROT_EN_VDNR_1_SET,
+				    MT8195_TOP_AXI_PROT_EN_VDNR_1_CLR,
+				    MT8195_TOP_AXI_PROT_EN_VDNR_1_STA1),
+		},
+	},
+	[MT8195_POWER_DOMAIN_PCIE_PHY] = {
+		.name = "pcie_phy",
+		.sta_mask = BIT(13),
+		.ctl_offs = 0x330,
+		.pwr_sta_offs = 0x174,
+		.pwr_sta2nd_offs = 0x178,
+		.caps = MTK_SCPD_ACTIVE_WAKEUP,
+	},
+	[MT8195_POWER_DOMAIN_SSUSB_PCIE_PHY] = {
+		.name = "ssusb_pcie_phy",
+		.sta_mask = BIT(14),
+		.ctl_offs = 0x334,
+		.pwr_sta_offs = 0x174,
+		.pwr_sta2nd_offs = 0x178,
+		.caps = MTK_SCPD_ACTIVE_WAKEUP,
+	},
+	[MT8195_POWER_DOMAIN_CSI_RX_TOP] = {
+		.name = "csi_rx_top",
+		.sta_mask = BIT(18),
+		.ctl_offs = 0x3C4,
+		.pwr_sta_offs = 0x174,
+		.pwr_sta2nd_offs = 0x178,
+		.caps = MTK_SCPD_KEEP_DEFAULT_OFF,
+	},
+	[MT8195_POWER_DOMAIN_ETHER] = {
+		.name = "ether",
+		.sta_mask = BIT(3),
+		.ctl_offs = 0x344,
+		.pwr_sta_offs = 0x16c,
+		.pwr_sta2nd_offs = 0x170,
+		.sram_pdn_bits = GENMASK(8, 8),
+		.sram_pdn_ack_bits = GENMASK(12, 12),
+		.caps = MTK_SCPD_ACTIVE_WAKEUP,
+	},
+	[MT8195_POWER_DOMAIN_ADSP] = {
+		.name = "adsp",
+		.sta_mask = BIT(10),
+		.ctl_offs = 0x360,
+		.pwr_sta_offs = 0x16c,
+		.pwr_sta2nd_offs = 0x170,
+		.sram_pdn_bits = GENMASK(8, 8),
+		.sram_pdn_ack_bits = GENMASK(12, 12),
+		.bp_infracfg = {
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_2_ADSP,
+				    MT8195_TOP_AXI_PROT_EN_2_SET,
+				    MT8195_TOP_AXI_PROT_EN_2_CLR,
+				    MT8195_TOP_AXI_PROT_EN_2_STA1),
+		},
+		.caps = MTK_SCPD_SRAM_ISO | MTK_SCPD_ACTIVE_WAKEUP,
+	},
+	[MT8195_POWER_DOMAIN_AUDIO] = {
+		.name = "audio",
+		.sta_mask = BIT(8),
+		.ctl_offs = 0x358,
+		.pwr_sta_offs = 0x16c,
+		.pwr_sta2nd_offs = 0x170,
+		.sram_pdn_bits = GENMASK(8, 8),
+		.sram_pdn_ack_bits = GENMASK(12, 12),
+		.bp_infracfg = {
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_2_AUDIO,
+				    MT8195_TOP_AXI_PROT_EN_2_SET,
+				    MT8195_TOP_AXI_PROT_EN_2_CLR,
+				    MT8195_TOP_AXI_PROT_EN_2_STA1),
+		},
+	},
+	[MT8195_POWER_DOMAIN_MFG0] = {
+		.name = "mfg0",
+		.sta_mask = BIT(1),
+		.ctl_offs = 0x300,
+		.pwr_sta_offs = 0x174,
+		.pwr_sta2nd_offs = 0x178,
+		.sram_pdn_bits = GENMASK(8, 8),
+		.sram_pdn_ack_bits = GENMASK(12, 12),
+		.caps = MTK_SCPD_KEEP_DEFAULT_OFF | MTK_SCPD_DOMAIN_SUPPLY,
+	},
+	[MT8195_POWER_DOMAIN_MFG1] = {
+		.name = "mfg1",
+		.sta_mask = BIT(2),
+		.ctl_offs = 0x304,
+		.pwr_sta_offs = 0x174,
+		.pwr_sta2nd_offs = 0x178,
+		.sram_pdn_bits = GENMASK(8, 8),
+		.sram_pdn_ack_bits = GENMASK(12, 12),
+		.bp_infracfg = {
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_MFG1,
+				    MT8195_TOP_AXI_PROT_EN_SET,
+				    MT8195_TOP_AXI_PROT_EN_CLR,
+				    MT8195_TOP_AXI_PROT_EN_STA1),
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_2_MFG1,
+				    MT8195_TOP_AXI_PROT_EN_2_SET,
+				    MT8195_TOP_AXI_PROT_EN_2_CLR,
+				    MT8195_TOP_AXI_PROT_EN_2_STA1),
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_1_MFG1,
+				    MT8195_TOP_AXI_PROT_EN_1_SET,
+				    MT8195_TOP_AXI_PROT_EN_1_CLR,
+				    MT8195_TOP_AXI_PROT_EN_1_STA1),
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_2_MFG1_2ND,
+				    MT8195_TOP_AXI_PROT_EN_2_SET,
+				    MT8195_TOP_AXI_PROT_EN_2_CLR,
+				    MT8195_TOP_AXI_PROT_EN_2_STA1),
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_MFG1_2ND,
+				    MT8195_TOP_AXI_PROT_EN_SET,
+				    MT8195_TOP_AXI_PROT_EN_CLR,
+				    MT8195_TOP_AXI_PROT_EN_STA1),
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_SUB_INFRA_VDNR_MFG1,
+				    MT8195_TOP_AXI_PROT_EN_SUB_INFRA_VDNR_SET,
+				    MT8195_TOP_AXI_PROT_EN_SUB_INFRA_VDNR_CLR,
+				    MT8195_TOP_AXI_PROT_EN_SUB_INFRA_VDNR_STA1),
+		},
+		.caps = MTK_SCPD_KEEP_DEFAULT_OFF,
+	},
+	[MT8195_POWER_DOMAIN_MFG2] = {
+		.name = "mfg2",
+		.sta_mask = BIT(3),
+		.ctl_offs = 0x308,
+		.pwr_sta_offs = 0x174,
+		.pwr_sta2nd_offs = 0x178,
+		.sram_pdn_bits = GENMASK(8, 8),
+		.sram_pdn_ack_bits = GENMASK(12, 12),
+		.caps = MTK_SCPD_KEEP_DEFAULT_OFF,
+	},
+	[MT8195_POWER_DOMAIN_MFG3] = {
+		.name = "mfg3",
+		.sta_mask = BIT(4),
+		.ctl_offs = 0x30C,
+		.pwr_sta_offs = 0x174,
+		.pwr_sta2nd_offs = 0x178,
+		.sram_pdn_bits = GENMASK(8, 8),
+		.sram_pdn_ack_bits = GENMASK(12, 12),
+		.caps = MTK_SCPD_KEEP_DEFAULT_OFF,
+	},
+	[MT8195_POWER_DOMAIN_MFG4] = {
+		.name = "mfg4",
+		.sta_mask = BIT(5),
+		.ctl_offs = 0x310,
+		.pwr_sta_offs = 0x174,
+		.pwr_sta2nd_offs = 0x178,
+		.sram_pdn_bits = GENMASK(8, 8),
+		.sram_pdn_ack_bits = GENMASK(12, 12),
+		.caps = MTK_SCPD_KEEP_DEFAULT_OFF,
+	},
+	[MT8195_POWER_DOMAIN_MFG5] = {
+		.name = "mfg5",
+		.sta_mask = BIT(6),
+		.ctl_offs = 0x314,
+		.pwr_sta_offs = 0x174,
+		.pwr_sta2nd_offs = 0x178,
+		.sram_pdn_bits = GENMASK(8, 8),
+		.sram_pdn_ack_bits = GENMASK(12, 12),
+		.caps = MTK_SCPD_KEEP_DEFAULT_OFF,
+	},
+	[MT8195_POWER_DOMAIN_MFG6] = {
+		.name = "mfg6",
+		.sta_mask = BIT(7),
+		.ctl_offs = 0x318,
+		.pwr_sta_offs = 0x174,
+		.pwr_sta2nd_offs = 0x178,
+		.sram_pdn_bits = GENMASK(8, 8),
+		.sram_pdn_ack_bits = GENMASK(12, 12),
+		.caps = MTK_SCPD_KEEP_DEFAULT_OFF,
+	},
+	[MT8195_POWER_DOMAIN_VPPSYS0] = {
+		.name = "vppsys0",
+		.sta_mask = BIT(11),
+		.ctl_offs = 0x364,
+		.pwr_sta_offs = 0x16c,
+		.pwr_sta2nd_offs = 0x170,
+		.sram_pdn_bits = GENMASK(8, 8),
+		.sram_pdn_ack_bits = GENMASK(12, 12),
+		.bp_infracfg = {
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_VPPSYS0,
+				    MT8195_TOP_AXI_PROT_EN_SET,
+				    MT8195_TOP_AXI_PROT_EN_CLR,
+				    MT8195_TOP_AXI_PROT_EN_STA1),
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_MM_2_VPPSYS0,
+				    MT8195_TOP_AXI_PROT_EN_MM_2_SET,
+				    MT8195_TOP_AXI_PROT_EN_MM_2_CLR,
+				    MT8195_TOP_AXI_PROT_EN_MM_2_STA1),
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_VPPSYS0_2ND,
+				    MT8195_TOP_AXI_PROT_EN_SET,
+				    MT8195_TOP_AXI_PROT_EN_CLR,
+				    MT8195_TOP_AXI_PROT_EN_STA1),
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_MM_2_VPPSYS0_2ND,
+				    MT8195_TOP_AXI_PROT_EN_MM_2_SET,
+				    MT8195_TOP_AXI_PROT_EN_MM_2_CLR,
+				    MT8195_TOP_AXI_PROT_EN_MM_2_STA1),
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_SUB_INFRA_VDNR_VPPSYS0,
+				    MT8195_TOP_AXI_PROT_EN_SUB_INFRA_VDNR_SET,
+				    MT8195_TOP_AXI_PROT_EN_SUB_INFRA_VDNR_CLR,
+				    MT8195_TOP_AXI_PROT_EN_SUB_INFRA_VDNR_STA1),
+		},
+	},
+	[MT8195_POWER_DOMAIN_VDOSYS0] = {
+		.name = "vdosys0",
+		.sta_mask = BIT(13),
+		.ctl_offs = 0x36C,
+		.pwr_sta_offs = 0x16c,
+		.pwr_sta2nd_offs = 0x170,
+		.sram_pdn_bits = GENMASK(8, 8),
+		.sram_pdn_ack_bits = GENMASK(12, 12),
+		.bp_infracfg = {
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_MM_VDOSYS0,
+				    MT8195_TOP_AXI_PROT_EN_MM_SET,
+				    MT8195_TOP_AXI_PROT_EN_MM_CLR,
+				    MT8195_TOP_AXI_PROT_EN_MM_STA1),
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_VDOSYS0,
+				    MT8195_TOP_AXI_PROT_EN_SET,
+				    MT8195_TOP_AXI_PROT_EN_CLR,
+				    MT8195_TOP_AXI_PROT_EN_STA1),
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_SUB_INFRA_VDNR_VDOSYS0,
+				    MT8195_TOP_AXI_PROT_EN_SUB_INFRA_VDNR_SET,
+				    MT8195_TOP_AXI_PROT_EN_SUB_INFRA_VDNR_CLR,
+				    MT8195_TOP_AXI_PROT_EN_SUB_INFRA_VDNR_STA1),
+		},
+	},
+	[MT8195_POWER_DOMAIN_VPPSYS1] = {
+		.name = "vppsys1",
+		.sta_mask = BIT(12),
+		.ctl_offs = 0x368,
+		.pwr_sta_offs = 0x16c,
+		.pwr_sta2nd_offs = 0x170,
+		.sram_pdn_bits = GENMASK(8, 8),
+		.sram_pdn_ack_bits = GENMASK(12, 12),
+		.bp_infracfg = {
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_MM_VPPSYS1,
+				    MT8195_TOP_AXI_PROT_EN_MM_SET,
+				    MT8195_TOP_AXI_PROT_EN_MM_CLR,
+				    MT8195_TOP_AXI_PROT_EN_MM_STA1),
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_MM_VPPSYS1_2ND,
+				    MT8195_TOP_AXI_PROT_EN_MM_SET,
+				    MT8195_TOP_AXI_PROT_EN_MM_CLR,
+				    MT8195_TOP_AXI_PROT_EN_MM_STA1),
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_MM_2_VPPSYS1,
+				    MT8195_TOP_AXI_PROT_EN_MM_2_SET,
+				    MT8195_TOP_AXI_PROT_EN_MM_2_CLR,
+				    MT8195_TOP_AXI_PROT_EN_MM_2_STA1),
+		},
+	},
+	[MT8195_POWER_DOMAIN_VDOSYS1] = {
+		.name = "vdosys1",
+		.sta_mask = BIT(14),
+		.ctl_offs = 0x370,
+		.pwr_sta_offs = 0x16c,
+		.pwr_sta2nd_offs = 0x170,
+		.sram_pdn_bits = GENMASK(8, 8),
+		.sram_pdn_ack_bits = GENMASK(12, 12),
+		.bp_infracfg = {
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_MM_VDOSYS1,
+				    MT8195_TOP_AXI_PROT_EN_MM_SET,
+				    MT8195_TOP_AXI_PROT_EN_MM_CLR,
+				    MT8195_TOP_AXI_PROT_EN_MM_STA1),
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_MM_VDOSYS1_2ND,
+				    MT8195_TOP_AXI_PROT_EN_MM_SET,
+				    MT8195_TOP_AXI_PROT_EN_MM_CLR,
+				    MT8195_TOP_AXI_PROT_EN_MM_STA1),
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_MM_2_VDOSYS1,
+				    MT8195_TOP_AXI_PROT_EN_MM_2_SET,
+				    MT8195_TOP_AXI_PROT_EN_MM_2_CLR,
+				    MT8195_TOP_AXI_PROT_EN_MM_2_STA1),
+		},
+	},
+	[MT8195_POWER_DOMAIN_DP_TX] = {
+		.name = "dp_tx",
+		.sta_mask = BIT(16),
+		.ctl_offs = 0x378,
+		.pwr_sta_offs = 0x16c,
+		.pwr_sta2nd_offs = 0x170,
+		.sram_pdn_bits = GENMASK(8, 8),
+		.sram_pdn_ack_bits = GENMASK(12, 12),
+		.bp_infracfg = {
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_VDNR_1_DP_TX,
+				    MT8195_TOP_AXI_PROT_EN_VDNR_1_SET,
+				    MT8195_TOP_AXI_PROT_EN_VDNR_1_CLR,
+				    MT8195_TOP_AXI_PROT_EN_VDNR_1_STA1),
+		},
+		.caps = MTK_SCPD_KEEP_DEFAULT_OFF,
+	},
+	[MT8195_POWER_DOMAIN_EPD_TX] = {
+		.name = "epd_tx",
+		.sta_mask = BIT(17),
+		.ctl_offs = 0x37C,
+		.pwr_sta_offs = 0x16c,
+		.pwr_sta2nd_offs = 0x170,
+		.sram_pdn_bits = GENMASK(8, 8),
+		.sram_pdn_ack_bits = GENMASK(12, 12),
+		.bp_infracfg = {
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_VDNR_1_EPD_TX,
+				    MT8195_TOP_AXI_PROT_EN_VDNR_1_SET,
+				    MT8195_TOP_AXI_PROT_EN_VDNR_1_CLR,
+				    MT8195_TOP_AXI_PROT_EN_VDNR_1_STA1),
+		},
+		.caps = MTK_SCPD_KEEP_DEFAULT_OFF,
+	},
+	[MT8195_POWER_DOMAIN_HDMI_TX] = {
+		.name = "hdmi_tx",
+		.sta_mask = BIT(18),
+		.ctl_offs = 0x380,
+		.pwr_sta_offs = 0x16c,
+		.pwr_sta2nd_offs = 0x170,
+		.sram_pdn_bits = GENMASK(8, 8),
+		.sram_pdn_ack_bits = GENMASK(12, 12),
+		.caps = MTK_SCPD_KEEP_DEFAULT_OFF | MTK_SCPD_ACTIVE_WAKEUP,
+	},
+	[MT8195_POWER_DOMAIN_WPESYS] = {
+		.name = "wpesys",
+		.sta_mask = BIT(15),
+		.ctl_offs = 0x374,
+		.pwr_sta_offs = 0x16c,
+		.pwr_sta2nd_offs = 0x170,
+		.sram_pdn_bits = GENMASK(8, 8),
+		.sram_pdn_ack_bits = GENMASK(12, 12),
+		.bp_infracfg = {
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_MM_2_WPESYS,
+				    MT8195_TOP_AXI_PROT_EN_MM_2_SET,
+				    MT8195_TOP_AXI_PROT_EN_MM_2_CLR,
+				    MT8195_TOP_AXI_PROT_EN_MM_2_STA1),
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_MM_WPESYS,
+				    MT8195_TOP_AXI_PROT_EN_MM_SET,
+				    MT8195_TOP_AXI_PROT_EN_MM_CLR,
+				    MT8195_TOP_AXI_PROT_EN_MM_STA1),
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_MM_2_WPESYS_2ND,
+				    MT8195_TOP_AXI_PROT_EN_MM_2_SET,
+				    MT8195_TOP_AXI_PROT_EN_MM_2_CLR,
+				    MT8195_TOP_AXI_PROT_EN_MM_2_STA1),
+		},
+	},
+	[MT8195_POWER_DOMAIN_VDEC0] = {
+		.name = "vdec0",
+		.sta_mask = BIT(20),
+		.ctl_offs = 0x388,
+		.pwr_sta_offs = 0x16c,
+		.pwr_sta2nd_offs = 0x170,
+		.sram_pdn_bits = GENMASK(8, 8),
+		.sram_pdn_ack_bits = GENMASK(12, 12),
+		.bp_infracfg = {
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_MM_VDEC0,
+				    MT8195_TOP_AXI_PROT_EN_MM_SET,
+				    MT8195_TOP_AXI_PROT_EN_MM_CLR,
+				    MT8195_TOP_AXI_PROT_EN_MM_STA1),
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_MM_2_VDEC0,
+				    MT8195_TOP_AXI_PROT_EN_MM_2_SET,
+				    MT8195_TOP_AXI_PROT_EN_MM_2_CLR,
+				    MT8195_TOP_AXI_PROT_EN_MM_2_STA1),
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_MM_VDEC0_2ND,
+				    MT8195_TOP_AXI_PROT_EN_MM_SET,
+				    MT8195_TOP_AXI_PROT_EN_MM_CLR,
+				    MT8195_TOP_AXI_PROT_EN_MM_STA1),
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_MM_2_VDEC0_2ND,
+				    MT8195_TOP_AXI_PROT_EN_MM_2_SET,
+				    MT8195_TOP_AXI_PROT_EN_MM_2_CLR,
+				    MT8195_TOP_AXI_PROT_EN_MM_2_STA1),
+		},
+		.caps = MTK_SCPD_KEEP_DEFAULT_OFF,
+	},
+	[MT8195_POWER_DOMAIN_VDEC1] = {
+		.name = "vdec1",
+		.sta_mask = BIT(21),
+		.ctl_offs = 0x38C,
+		.pwr_sta_offs = 0x16c,
+		.pwr_sta2nd_offs = 0x170,
+		.sram_pdn_bits = GENMASK(8, 8),
+		.sram_pdn_ack_bits = GENMASK(12, 12),
+		.bp_infracfg = {
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_MM_VDEC1,
+				    MT8195_TOP_AXI_PROT_EN_MM_SET,
+				    MT8195_TOP_AXI_PROT_EN_MM_CLR,
+				    MT8195_TOP_AXI_PROT_EN_MM_STA1),
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_MM_VDEC1_2ND,
+				    MT8195_TOP_AXI_PROT_EN_MM_SET,
+				    MT8195_TOP_AXI_PROT_EN_MM_CLR,
+				    MT8195_TOP_AXI_PROT_EN_MM_STA1),
+		},
+		.caps = MTK_SCPD_KEEP_DEFAULT_OFF,
+	},
+	[MT8195_POWER_DOMAIN_VDEC2] = {
+		.name = "vdec2",
+		.sta_mask = BIT(22),
+		.ctl_offs = 0x390,
+		.pwr_sta_offs = 0x16c,
+		.pwr_sta2nd_offs = 0x170,
+		.sram_pdn_bits = GENMASK(8, 8),
+		.sram_pdn_ack_bits = GENMASK(12, 12),
+		.bp_infracfg = {
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_MM_2_VDEC2,
+				    MT8195_TOP_AXI_PROT_EN_MM_2_SET,
+				    MT8195_TOP_AXI_PROT_EN_MM_2_CLR,
+				    MT8195_TOP_AXI_PROT_EN_MM_2_STA1),
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_MM_2_VDEC2_2ND,
+				    MT8195_TOP_AXI_PROT_EN_MM_2_SET,
+				    MT8195_TOP_AXI_PROT_EN_MM_2_CLR,
+				    MT8195_TOP_AXI_PROT_EN_MM_2_STA1),
+		},
+		.caps = MTK_SCPD_KEEP_DEFAULT_OFF,
+	},
+	[MT8195_POWER_DOMAIN_VENC] = {
+		.name = "venc",
+		.sta_mask = BIT(23),
+		.ctl_offs = 0x394,
+		.pwr_sta_offs = 0x16c,
+		.pwr_sta2nd_offs = 0x170,
+		.sram_pdn_bits = GENMASK(8, 8),
+		.sram_pdn_ack_bits = GENMASK(12, 12),
+		.bp_infracfg = {
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_MM_VENC,
+				    MT8195_TOP_AXI_PROT_EN_MM_SET,
+				    MT8195_TOP_AXI_PROT_EN_MM_CLR,
+				    MT8195_TOP_AXI_PROT_EN_MM_STA1),
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_MM_VENC_2ND,
+				    MT8195_TOP_AXI_PROT_EN_MM_SET,
+				    MT8195_TOP_AXI_PROT_EN_MM_CLR,
+				    MT8195_TOP_AXI_PROT_EN_MM_STA1),
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_MM_2_VENC,
+				    MT8195_TOP_AXI_PROT_EN_MM_2_SET,
+				    MT8195_TOP_AXI_PROT_EN_MM_2_CLR,
+				    MT8195_TOP_AXI_PROT_EN_MM_2_STA1),
+		},
+		.caps = MTK_SCPD_KEEP_DEFAULT_OFF,
+	},
+	[MT8195_POWER_DOMAIN_VENC_CORE1] = {
+		.name = "venc_core1",
+		.sta_mask = BIT(24),
+		.ctl_offs = 0x398,
+		.pwr_sta_offs = 0x16c,
+		.pwr_sta2nd_offs = 0x170,
+		.sram_pdn_bits = GENMASK(8, 8),
+		.sram_pdn_ack_bits = GENMASK(12, 12),
+		.bp_infracfg = {
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_MM_VENC_CORE1,
+				    MT8195_TOP_AXI_PROT_EN_MM_SET,
+				    MT8195_TOP_AXI_PROT_EN_MM_CLR,
+				    MT8195_TOP_AXI_PROT_EN_MM_STA1),
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_MM_2_VENC_CORE1,
+				    MT8195_TOP_AXI_PROT_EN_MM_2_SET,
+				    MT8195_TOP_AXI_PROT_EN_MM_2_CLR,
+				    MT8195_TOP_AXI_PROT_EN_MM_2_STA1),
+		},
+		.caps = MTK_SCPD_KEEP_DEFAULT_OFF,
+	},
+	[MT8195_POWER_DOMAIN_IMG] = {
+		.name = "img",
+		.sta_mask = BIT(29),
+		.ctl_offs = 0x3AC,
+		.pwr_sta_offs = 0x16c,
+		.pwr_sta2nd_offs = 0x170,
+		.sram_pdn_bits = GENMASK(8, 8),
+		.sram_pdn_ack_bits = GENMASK(12, 12),
+		.bp_infracfg = {
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_MM_IMG,
+				    MT8195_TOP_AXI_PROT_EN_MM_SET,
+				    MT8195_TOP_AXI_PROT_EN_MM_CLR,
+				    MT8195_TOP_AXI_PROT_EN_MM_STA1),
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_MM_IMG_2ND,
+				    MT8195_TOP_AXI_PROT_EN_MM_SET,
+				    MT8195_TOP_AXI_PROT_EN_MM_CLR,
+				    MT8195_TOP_AXI_PROT_EN_MM_STA1),
+		},
+		.caps = MTK_SCPD_KEEP_DEFAULT_OFF,
+	},
+	[MT8195_POWER_DOMAIN_DIP] = {
+		.name = "dip",
+		.sta_mask = BIT(30),
+		.ctl_offs = 0x3B0,
+		.pwr_sta_offs = 0x16c,
+		.pwr_sta2nd_offs = 0x170,
+		.sram_pdn_bits = GENMASK(8, 8),
+		.sram_pdn_ack_bits = GENMASK(12, 12),
+		.caps = MTK_SCPD_KEEP_DEFAULT_OFF,
+	},
+	[MT8195_POWER_DOMAIN_IPE] = {
+		.name = "ipe",
+		.sta_mask = BIT(31),
+		.ctl_offs = 0x3B4,
+		.pwr_sta_offs = 0x16c,
+		.pwr_sta2nd_offs = 0x170,
+		.sram_pdn_bits = GENMASK(8, 8),
+		.sram_pdn_ack_bits = GENMASK(12, 12),
+		.bp_infracfg = {
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_MM_IPE,
+				    MT8195_TOP_AXI_PROT_EN_MM_SET,
+				    MT8195_TOP_AXI_PROT_EN_MM_CLR,
+				    MT8195_TOP_AXI_PROT_EN_MM_STA1),
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_MM_2_IPE,
+				    MT8195_TOP_AXI_PROT_EN_MM_2_SET,
+				    MT8195_TOP_AXI_PROT_EN_MM_2_CLR,
+				    MT8195_TOP_AXI_PROT_EN_MM_2_STA1),
+		},
+		.caps = MTK_SCPD_KEEP_DEFAULT_OFF,
+	},
+	[MT8195_POWER_DOMAIN_CAM] = {
+		.name = "cam",
+		.sta_mask = BIT(25),
+		.ctl_offs = 0x39C,
+		.pwr_sta_offs = 0x16c,
+		.pwr_sta2nd_offs = 0x170,
+		.sram_pdn_bits = GENMASK(8, 8),
+		.sram_pdn_ack_bits = GENMASK(12, 12),
+		.bp_infracfg = {
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_2_CAM,
+				    MT8195_TOP_AXI_PROT_EN_2_SET,
+				    MT8195_TOP_AXI_PROT_EN_2_CLR,
+				    MT8195_TOP_AXI_PROT_EN_2_STA1),
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_MM_CAM,
+				    MT8195_TOP_AXI_PROT_EN_MM_SET,
+				    MT8195_TOP_AXI_PROT_EN_MM_CLR,
+				    MT8195_TOP_AXI_PROT_EN_MM_STA1),
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_1_CAM,
+				    MT8195_TOP_AXI_PROT_EN_1_SET,
+				    MT8195_TOP_AXI_PROT_EN_1_CLR,
+				    MT8195_TOP_AXI_PROT_EN_1_STA1),
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_MM_CAM_2ND,
+				    MT8195_TOP_AXI_PROT_EN_MM_SET,
+				    MT8195_TOP_AXI_PROT_EN_MM_CLR,
+				    MT8195_TOP_AXI_PROT_EN_MM_STA1),
+			BUS_PROT_WR(MT8195_TOP_AXI_PROT_EN_MM_2_CAM,
+				    MT8195_TOP_AXI_PROT_EN_MM_2_SET,
+				    MT8195_TOP_AXI_PROT_EN_MM_2_CLR,
+				    MT8195_TOP_AXI_PROT_EN_MM_2_STA1),
+		},
+		.caps = MTK_SCPD_KEEP_DEFAULT_OFF,
+	},
+	[MT8195_POWER_DOMAIN_CAM_RAWA] = {
+		.name = "cam_rawa",
+		.sta_mask = BIT(26),
+		.ctl_offs = 0x3A0,
+		.pwr_sta_offs = 0x16c,
+		.pwr_sta2nd_offs = 0x170,
+		.sram_pdn_bits = GENMASK(8, 8),
+		.sram_pdn_ack_bits = GENMASK(12, 12),
+		.caps = MTK_SCPD_KEEP_DEFAULT_OFF,
+	},
+	[MT8195_POWER_DOMAIN_CAM_RAWB] = {
+		.name = "cam_rawb",
+		.sta_mask = BIT(27),
+		.ctl_offs = 0x3A4,
+		.pwr_sta_offs = 0x16c,
+		.pwr_sta2nd_offs = 0x170,
+		.sram_pdn_bits = GENMASK(8, 8),
+		.sram_pdn_ack_bits = GENMASK(12, 12),
+		.caps = MTK_SCPD_KEEP_DEFAULT_OFF,
+	},
+	[MT8195_POWER_DOMAIN_CAM_MRAW] = {
+		.name = "cam_mraw",
+		.sta_mask = BIT(28),
+		.ctl_offs = 0x3A8,
+		.pwr_sta_offs = 0x16c,
+		.pwr_sta2nd_offs = 0x170,
+		.sram_pdn_bits = GENMASK(8, 8),
+		.sram_pdn_ack_bits = GENMASK(12, 12),
+		.caps = MTK_SCPD_KEEP_DEFAULT_OFF,
+	},
+};
+
+static const struct scpsys_soc_data mt8195_scpsys_data = {
+	.domains_data = scpsys_domain_data_mt8195,
+	.num_domains = ARRAY_SIZE(scpsys_domain_data_mt8195),
+};
+
+#endif /* __SOC_MEDIATEK_MT8195_PM_DOMAINS_H */

drivers/soc/mediatek/mtk-infracfg.c

@@ -6,6 +6,7 @@
 #include <linux/export.h>
 #include <linux/jiffies.h>
 #include <linux/regmap.h>
+#include <linux/mfd/syscon.h>
 #include <linux/soc/mediatek/infracfg.h>
 #include <asm/processor.h>
 
@@ -72,3 +73,21 @@ int mtk_infracfg_clear_bus_protection(struct regmap *infracfg, u32 mask,
 
 	return ret;
 }
+
+static int __init mtk_infracfg_init(void)
+{
+	struct regmap *infracfg;
+
+	/*
+	 * MT8192 has an experimental path to route GPU traffic to the DSU's
+	 * Accelerator Coherency Port, which is inadvertently enabled by
+	 * default. It turns out not to work, so disable it to prevent spurious
+	 * GPU faults.
+	 */
+	infracfg = syscon_regmap_lookup_by_compatible("mediatek,mt8192-infracfg");
+	if (!IS_ERR(infracfg))
+		regmap_set_bits(infracfg, MT8192_INFRA_CTRL,
+				MT8192_INFRA_CTRL_DISABLE_MFG2ACP);
+	return 0;
+}
+postcore_initcall(mtk_infracfg_init);

drivers/soc/mediatek/mtk-mmsys.c

@@ -15,6 +15,7 @@
 #include "mtk-mmsys.h"
 #include "mt8167-mmsys.h"
 #include "mt8183-mmsys.h"
+#include "mt8186-mmsys.h"
 #include "mt8192-mmsys.h"
 #include "mt8365-mmsys.h"
 
@@ -48,12 +49,21 @@ static const struct mtk_mmsys_driver_data mt8173_mmsys_driver_data = {
 	.clk_driver = "clk-mt8173-mm",
 	.routes = mmsys_default_routing_table,
 	.num_routes = ARRAY_SIZE(mmsys_default_routing_table),
+	.sw0_rst_offset = MT8183_MMSYS_SW0_RST_B,
 };
 
 static const struct mtk_mmsys_driver_data mt8183_mmsys_driver_data = {
 	.clk_driver = "clk-mt8183-mm",
 	.routes = mmsys_mt8183_routing_table,
 	.num_routes = ARRAY_SIZE(mmsys_mt8183_routing_table),
+	.sw0_rst_offset = MT8183_MMSYS_SW0_RST_B,
+};
+
+static const struct mtk_mmsys_driver_data mt8186_mmsys_driver_data = {
+	.clk_driver = "clk-mt8186-mm",
+	.routes = mmsys_mt8186_routing_table,
+	.num_routes = ARRAY_SIZE(mmsys_mt8186_routing_table),
+	.sw0_rst_offset = MT8186_MMSYS_SW0_RST_B,
 };
 
 static const struct mtk_mmsys_driver_data mt8192_mmsys_driver_data = {
@@ -121,14 +131,14 @@ static int mtk_mmsys_reset_update(struct reset_controller_dev *rcdev, unsigned l
 
 	spin_lock_irqsave(&mmsys->lock, flags);
 
-	reg = readl_relaxed(mmsys->regs + MMSYS_SW0_RST_B);
+	reg = readl_relaxed(mmsys->regs + mmsys->data->sw0_rst_offset);
 
 	if (assert)
 		reg &= ~BIT(id);
 	else
 		reg |= BIT(id);
 
-	writel_relaxed(reg, mmsys->regs + MMSYS_SW0_RST_B);
+	writel_relaxed(reg, mmsys->regs + mmsys->data->sw0_rst_offset);
 
 	spin_unlock_irqrestore(&mmsys->lock, flags);
 
@@ -242,6 +252,10 @@ static const struct of_device_id of_match_mtk_mmsys[] = {
 		.compatible = "mediatek,mt8183-mmsys",
 		.data = &mt8183_mmsys_driver_data,
 	},
+	{
+		.compatible = "mediatek,mt8186-mmsys",
+		.data = &mt8186_mmsys_driver_data,
+	},
 	{
 		.compatible = "mediatek,mt8192-mmsys",
 		.data = &mt8192_mmsys_driver_data,

drivers/soc/mediatek/mtk-mmsys.h

@@ -78,8 +78,6 @@
 #define DSI_SEL_IN_RDMA				0x1
 #define DSI_SEL_IN_MASK				0x1
 
-#define MMSYS_SW0_RST_B				0x140
-
 struct mtk_mmsys_routes {
 	u32 from_comp;
 	u32 to_comp;
@@ -92,6 +90,7 @@ struct mtk_mmsys_driver_data {
 	const char *clk_driver;
 	const struct mtk_mmsys_routes *routes;
 	const unsigned int num_routes;
+	const u16 sw0_rst_offset;
 };
 
 /*

drivers/soc/mediatek/mtk-mutex.c

@@ -26,6 +26,23 @@
 
 #define INT_MUTEX				BIT(1)
 
+#define MT8186_MUTEX_MOD_DISP_OVL0		0
+#define MT8186_MUTEX_MOD_DISP_OVL0_2L		1
+#define MT8186_MUTEX_MOD_DISP_RDMA0		2
+#define MT8186_MUTEX_MOD_DISP_COLOR0		4
+#define MT8186_MUTEX_MOD_DISP_CCORR0		5
+#define MT8186_MUTEX_MOD_DISP_AAL0		7
+#define MT8186_MUTEX_MOD_DISP_GAMMA0		8
+#define MT8186_MUTEX_MOD_DISP_POSTMASK0		9
+#define MT8186_MUTEX_MOD_DISP_DITHER0		10
+#define MT8186_MUTEX_MOD_DISP_RDMA1		17
+
+#define MT8186_MUTEX_SOF_SINGLE_MODE		0
+#define MT8186_MUTEX_SOF_DSI0			1
+#define MT8186_MUTEX_SOF_DPI0			2
+#define MT8186_MUTEX_EOF_DSI0			(MT8186_MUTEX_SOF_DSI0 << 6)
+#define MT8186_MUTEX_EOF_DPI0			(MT8186_MUTEX_SOF_DPI0 << 6)
+
 #define MT8167_MUTEX_MOD_DISP_PWM		1
 #define MT8167_MUTEX_MOD_DISP_OVL0		6
 #define MT8167_MUTEX_MOD_DISP_OVL1		7
@@ -226,6 +243,19 @@ static const unsigned int mt8183_mutex_mod[DDP_COMPONENT_ID_MAX] = {
 	[DDP_COMPONENT_WDMA0] = MT8183_MUTEX_MOD_DISP_WDMA0,
 };
 
+static const unsigned int mt8186_mutex_mod[DDP_COMPONENT_ID_MAX] = {
+	[DDP_COMPONENT_AAL0] = MT8186_MUTEX_MOD_DISP_AAL0,
+	[DDP_COMPONENT_CCORR] = MT8186_MUTEX_MOD_DISP_CCORR0,
+	[DDP_COMPONENT_COLOR0] = MT8186_MUTEX_MOD_DISP_COLOR0,
+	[DDP_COMPONENT_DITHER] = MT8186_MUTEX_MOD_DISP_DITHER0,
+	[DDP_COMPONENT_GAMMA] = MT8186_MUTEX_MOD_DISP_GAMMA0,
+	[DDP_COMPONENT_OVL0] = MT8186_MUTEX_MOD_DISP_OVL0,
+	[DDP_COMPONENT_OVL_2L0] = MT8186_MUTEX_MOD_DISP_OVL0_2L,
+	[DDP_COMPONENT_POSTMASK0] = MT8186_MUTEX_MOD_DISP_POSTMASK0,
+	[DDP_COMPONENT_RDMA0] = MT8186_MUTEX_MOD_DISP_RDMA0,
+	[DDP_COMPONENT_RDMA1] = MT8186_MUTEX_MOD_DISP_RDMA1,
+};
+
 static const unsigned int mt8192_mutex_mod[DDP_COMPONENT_ID_MAX] = {
 	[DDP_COMPONENT_AAL0] = MT8192_MUTEX_MOD_DISP_AAL0,
 	[DDP_COMPONENT_CCORR] = MT8192_MUTEX_MOD_DISP_CCORR0,
@@ -264,6 +294,12 @@ static const unsigned int mt8183_mutex_sof[MUTEX_SOF_DSI3 + 1] = {
 	[MUTEX_SOF_DPI0] = MT8183_MUTEX_SOF_DPI0 | MT8183_MUTEX_EOF_DPI0,
 };
 
+static const unsigned int mt8186_mutex_sof[MUTEX_SOF_DSI3 + 1] = {
+	[MUTEX_SOF_SINGLE_MODE] = MUTEX_SOF_SINGLE_MODE,
+	[MUTEX_SOF_DSI0] = MT8186_MUTEX_SOF_DSI0 | MT8186_MUTEX_EOF_DSI0,
+	[MUTEX_SOF_DPI0] = MT8186_MUTEX_SOF_DPI0 | MT8186_MUTEX_EOF_DPI0,
+};
+
 static const struct mtk_mutex_data mt2701_mutex_driver_data = {
 	.mutex_mod = mt2701_mutex_mod,
 	.mutex_sof = mt2712_mutex_sof,
@@ -301,6 +337,13 @@ static const struct mtk_mutex_data mt8183_mutex_driver_data = {
 	.no_clk = true,
 };
 
+static const struct mtk_mutex_data mt8186_mutex_driver_data = {
+	.mutex_mod = mt8186_mutex_mod,
+	.mutex_sof = mt8186_mutex_sof,
+	.mutex_mod_reg = MT8183_MUTEX0_MOD0,
+	.mutex_sof_reg = MT8183_MUTEX0_SOF0,
+};
+
 static const struct mtk_mutex_data mt8192_mutex_driver_data = {
 	.mutex_mod = mt8192_mutex_mod,
 	.mutex_sof = mt8183_mutex_sof,
@@ -540,6 +583,8 @@ static const struct of_device_id mutex_driver_dt_match[] = {
 	  .data = &mt8173_mutex_driver_data},
 	{ .compatible = "mediatek,mt8183-disp-mutex",
 	  .data = &mt8183_mutex_driver_data},
+	{ .compatible = "mediatek,mt8186-disp-mutex",
+	  .data = &mt8186_mutex_driver_data},
 	{ .compatible = "mediatek,mt8192-disp-mutex",
 	  .data = &mt8192_mutex_driver_data},
 	{},

drivers/soc/mediatek/mtk-pm-domains.c

@@ -19,7 +19,9 @@
 #include "mt8167-pm-domains.h"
 #include "mt8173-pm-domains.h"
 #include "mt8183-pm-domains.h"
+#include "mt8186-pm-domains.h"
 #include "mt8192-pm-domains.h"
+#include "mt8195-pm-domains.h"
 
 #define MTK_POLL_DELAY_US		10
 #define MTK_POLL_TIMEOUT		USEC_PER_SEC
@@ -60,10 +62,10 @@ static bool scpsys_domain_is_on(struct scpsys_domain *pd)
 	struct scpsys *scpsys = pd->scpsys;
 	u32 status, status2;
 
-	regmap_read(scpsys->base, scpsys->soc_data->pwr_sta_offs, &status);
+	regmap_read(scpsys->base, pd->data->pwr_sta_offs, &status);
 	status &= pd->data->sta_mask;
 
-	regmap_read(scpsys->base, scpsys->soc_data->pwr_sta2nd_offs, &status2);
+	regmap_read(scpsys->base, pd->data->pwr_sta2nd_offs, &status2);
 	status2 &= pd->data->sta_mask;
 
 	/* A domain is on when both status bits are set. */
@@ -443,6 +445,9 @@ generic_pm_domain *scpsys_add_one_domain(struct scpsys *scpsys, struct device_no
 	pd->genpd.power_off = scpsys_power_off;
 	pd->genpd.power_on = scpsys_power_on;
 
+	if (MTK_SCPD_CAPS(pd, MTK_SCPD_ACTIVE_WAKEUP))
+		pd->genpd.flags |= GENPD_FLAG_ACTIVE_WAKEUP;
+
 	if (MTK_SCPD_CAPS(pd, MTK_SCPD_KEEP_DEFAULT_OFF))
 		pm_genpd_init(&pd->genpd, NULL, true);
 	else
@@ -562,10 +567,18 @@ static const struct of_device_id scpsys_of_match[] = {
 		.compatible = "mediatek,mt8183-power-controller",
 		.data = &mt8183_scpsys_data,
 	},
+	{
+		.compatible = "mediatek,mt8186-power-controller",
+		.data = &mt8186_scpsys_data,
+	},
 	{
 		.compatible = "mediatek,mt8192-power-controller",
 		.data = &mt8192_scpsys_data,
 	},
+	{
+		.compatible = "mediatek,mt8195-power-controller",
+		.data = &mt8195_scpsys_data,
+	},
 	{ }
 };
 

drivers/soc/mediatek/mtk-pm-domains.h

@@ -37,7 +37,7 @@
 #define PWR_STATUS_AUDIO		BIT(24)
 #define PWR_STATUS_USB			BIT(25)
 
-#define SPM_MAX_BUS_PROT_DATA		5
+#define SPM_MAX_BUS_PROT_DATA		6
 
 #define _BUS_PROT(_mask, _set, _clr, _sta, _update, _ignore) {	\
 		.bus_prot_mask = (_mask),			\
@@ -72,8 +72,6 @@ struct scpsys_bus_prot_data {
 	bool ignore_clr_ack;
 };
 
-#define MAX_SUBSYS_CLKS 10
-
 /**
  * struct scpsys_domain_data - scp domain data for power on/off flow
  * @name: The name of the power domain.
@@ -94,13 +92,13 @@ struct scpsys_domain_data {
 	u8 caps;
 	const struct scpsys_bus_prot_data bp_infracfg[SPM_MAX_BUS_PROT_DATA];
 	const struct scpsys_bus_prot_data bp_smi[SPM_MAX_BUS_PROT_DATA];
+	int pwr_sta_offs;
+	int pwr_sta2nd_offs;
 };
 
 struct scpsys_soc_data {
 	const struct scpsys_domain_data *domains_data;
 	int num_domains;
-	int pwr_sta_offs;
-	int pwr_sta2nd_offs;
 };
 
 #endif /* __SOC_MEDIATEK_MTK_PM_DOMAINS_H */

drivers/soc/mediatek/mtk-pmic-wrap.c

@@ -30,6 +30,7 @@
 #define PWRAP_GET_WACS_REQ(x)		(((x) >> 19) & 0x00000001)
 #define PWRAP_STATE_SYNC_IDLE0		BIT(20)
 #define PWRAP_STATE_INIT_DONE0		BIT(21)
+#define PWRAP_STATE_INIT_DONE0_MT8186	BIT(22)
 #define PWRAP_STATE_INIT_DONE1		BIT(15)
 
 /* macro for WACS FSM */
@@ -77,6 +78,7 @@
 #define PWRAP_CAP_INT1_EN	BIT(3)
 #define PWRAP_CAP_WDT_SRC1	BIT(4)
 #define PWRAP_CAP_ARB		BIT(5)
+#define PWRAP_CAP_ARB_MT8186	BIT(8)
 
 /* defines for slave device wrapper registers */
 enum dew_regs {
@@ -1063,6 +1065,55 @@ static int mt8516_regs[] = {
 	[PWRAP_MSB_FIRST] =		0x170,
 };
 
+static int mt8186_regs[] = {
+	[PWRAP_MUX_SEL] =		0x0,
+	[PWRAP_WRAP_EN] =		0x4,
+	[PWRAP_DIO_EN] =		0x8,
+	[PWRAP_RDDMY] =			0x20,
+	[PWRAP_CSHEXT_WRITE] =		0x24,
+	[PWRAP_CSHEXT_READ] =		0x28,
+	[PWRAP_CSLEXT_WRITE] =		0x2C,
+	[PWRAP_CSLEXT_READ] =		0x30,
+	[PWRAP_EXT_CK_WRITE] =		0x34,
+	[PWRAP_STAUPD_CTRL] =		0x3C,
+	[PWRAP_STAUPD_GRPEN] =		0x40,
+	[PWRAP_EINT_STA0_ADR] =		0x44,
+	[PWRAP_EINT_STA1_ADR] =		0x48,
+	[PWRAP_INT_CLR] =		0xC8,
+	[PWRAP_INT_FLG] =		0xC4,
+	[PWRAP_MAN_EN] =		0x7C,
+	[PWRAP_MAN_CMD] =		0x80,
+	[PWRAP_WACS0_EN] =		0x8C,
+	[PWRAP_WACS1_EN] =		0x94,
+	[PWRAP_WACS2_EN] =		0x9C,
+	[PWRAP_INIT_DONE0] =		0x90,
+	[PWRAP_INIT_DONE1] =		0x98,
+	[PWRAP_INIT_DONE2] =		0xA0,
+	[PWRAP_INT_EN] =		0xBC,
+	[PWRAP_INT1_EN] =		0xCC,
+	[PWRAP_INT1_FLG] =		0xD4,
+	[PWRAP_INT1_CLR] =		0xD8,
+	[PWRAP_TIMER_EN] =		0xF0,
+	[PWRAP_WDT_UNIT] =		0xF8,
+	[PWRAP_WDT_SRC_EN] =		0xFC,
+	[PWRAP_WDT_SRC_EN_1] =		0x100,
+	[PWRAP_WDT_FLG] =		0x104,
+	[PWRAP_SPMINF_STA] =		0x1B4,
+	[PWRAP_DCM_EN] =		0x1EC,
+	[PWRAP_DCM_DBC_PRD] =		0x1F0,
+	[PWRAP_GPSINF_0_STA] =		0x204,
+	[PWRAP_GPSINF_1_STA] =		0x208,
+	[PWRAP_WACS0_CMD] =		0xC00,
+	[PWRAP_WACS0_RDATA] =		0xC04,
+	[PWRAP_WACS0_VLDCLR] =		0xC08,
+	[PWRAP_WACS1_CMD] =		0xC10,
+	[PWRAP_WACS1_RDATA] =		0xC14,
+	[PWRAP_WACS1_VLDCLR] =		0xC18,
+	[PWRAP_WACS2_CMD] =		0xC20,
+	[PWRAP_WACS2_RDATA] =		0xC24,
+	[PWRAP_WACS2_VLDCLR] =		0xC28,
+};
+
 enum pmic_type {
 	PMIC_MT6323,
 	PMIC_MT6351,
@@ -1083,6 +1134,7 @@ enum pwrap_type {
 	PWRAP_MT8135,
 	PWRAP_MT8173,
 	PWRAP_MT8183,
+	PWRAP_MT8186,
 	PWRAP_MT8195,
 	PWRAP_MT8516,
 };
@@ -1535,6 +1587,7 @@ static int pwrap_init_cipher(struct pmic_wrapper *wrp)
 	case PWRAP_MT6779:
 	case PWRAP_MT6797:
 	case PWRAP_MT8173:
+	case PWRAP_MT8186:
 	case PWRAP_MT8516:
 		pwrap_writel(wrp, 1, PWRAP_CIPHER_EN);
 		break;
@@ -2069,6 +2122,19 @@ static struct pmic_wrapper_type pwrap_mt8516 = {
 	.init_soc_specific = NULL,
 };
 
+static struct pmic_wrapper_type pwrap_mt8186 = {
+	.regs = mt8186_regs,
+	.type = PWRAP_MT8186,
+	.arb_en_all = 0xfb27f,
+	.int_en_all = 0xfffffffe, /* disable WatchDog Timeout for bit 1 */
+	.int1_en_all =  0x000017ff, /* disable Matching interrupt for bit 13 */
+	.spi_w = PWRAP_MAN_CMD_SPI_WRITE,
+	.wdt_src = PWRAP_WDT_SRC_MASK_ALL,
+	.caps = PWRAP_CAP_INT1_EN | PWRAP_CAP_ARB_MT8186,
+	.init_reg_clock = pwrap_common_init_reg_clock,
+	.init_soc_specific = NULL,
+};
+
 static const struct of_device_id of_pwrap_match_tbl[] = {
 	{
 		.compatible = "mediatek,mt2701-pwrap",
@@ -2097,6 +2163,9 @@ static const struct of_device_id of_pwrap_match_tbl[] = {
 	}, {
 		.compatible = "mediatek,mt8183-pwrap",
 		.data = &pwrap_mt8183,
+	}, {
+		.compatible = "mediatek,mt8186-pwrap",
+		.data = &pwrap_mt8186,
 	}, {
 		.compatible = "mediatek,mt8195-pwrap",
 		.data = &pwrap_mt8195,
@@ -2209,6 +2278,8 @@ static int pwrap_probe(struct platform_device *pdev)
 
 	if (HAS_CAP(wrp->master->caps, PWRAP_CAP_ARB))
 		mask_done = PWRAP_STATE_INIT_DONE1;
+	else if (HAS_CAP(wrp->master->caps, PWRAP_CAP_ARB_MT8186))
+		mask_done = PWRAP_STATE_INIT_DONE0_MT8186;
 	else
 		mask_done = PWRAP_STATE_INIT_DONE0;
 

drivers/soc/microchip/mpfs-sys-controller.c

@@ -95,9 +95,9 @@ static int mpfs_sys_controller_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct mpfs_sys_controller *sys_controller;
-	int i;
+	int i, ret;
 
-	sys_controller = devm_kzalloc(dev, sizeof(*sys_controller), GFP_KERNEL);
+	sys_controller = kzalloc(sizeof(*sys_controller), GFP_KERNEL);
 	if (!sys_controller)
 		return -ENOMEM;
 
@@ -106,9 +106,12 @@ static int mpfs_sys_controller_probe(struct platform_device *pdev)
 	sys_controller->client.tx_block = 1U;
 
 	sys_controller->chan = mbox_request_channel(&sys_controller->client, 0);
-	if (IS_ERR(sys_controller->chan))
-		return dev_err_probe(dev, PTR_ERR(sys_controller->chan),
-				     "Failed to get mbox channel\n");
+	if (IS_ERR(sys_controller->chan)) {
+		ret = dev_err_probe(dev, PTR_ERR(sys_controller->chan),
+				    "Failed to get mbox channel\n");
+		kfree(sys_controller);
+		return ret;
+	}
 
 	init_completion(&sys_controller->c);
 	kref_init(&sys_controller->consumers);

drivers/soc/qcom/apr.c

@@ -653,7 +653,6 @@ static void apr_remove(struct rpmsg_device *rpdev)
 
 	pdr_handle_release(apr->pdr);
 	device_for_each_child(&rpdev->dev, NULL, apr_remove_device);
-	flush_workqueue(apr->rxwq);
 	destroy_workqueue(apr->rxwq);
 }
 

drivers/soc/qcom/llcc-qcom.c

@@ -29,17 +29,13 @@
 #define ATTR1_FIXED_SIZE_SHIFT        0x03
 #define ATTR1_PRIORITY_SHIFT          0x04
 #define ATTR1_MAX_CAP_SHIFT           0x10
-#define ATTR0_RES_WAYS_MASK           GENMASK(11, 0)
-#define ATTR0_BONUS_WAYS_MASK         GENMASK(27, 16)
+#define ATTR0_RES_WAYS_MASK           GENMASK(15, 0)
+#define ATTR0_BONUS_WAYS_MASK         GENMASK(31, 16)
 #define ATTR0_BONUS_WAYS_SHIFT        0x10
 #define LLCC_STATUS_READ_DELAY        100
 
 #define CACHE_LINE_SIZE_SHIFT         6
 
-#define LLCC_COMMON_HW_INFO           0x00030000
-#define LLCC_MAJOR_VERSION_MASK       GENMASK(31, 24)
-
-#define LLCC_COMMON_STATUS0           0x0003000c
 #define LLCC_LB_CNT_MASK              GENMASK(31, 28)
 #define LLCC_LB_CNT_SHIFT             28
 
@@ -52,9 +48,13 @@
 #define LLCC_TRP_SCID_DIS_CAP_ALLOC   0x21f00
 #define LLCC_TRP_PCB_ACT              0x21f04
 #define LLCC_TRP_WRSC_EN              0x21f20
+#define LLCC_TRP_WRSC_CACHEABLE_EN    0x21f2c
 
 #define BANK_OFFSET_STRIDE	      0x80000
 
+#define LLCC_VERSION_2_0_0_0          0x02000000
+#define LLCC_VERSION_2_1_0_0          0x02010000
+
 /**
  * struct llcc_slice_config - Data associated with the llcc slice
  * @usecase_id: Unique id for the client's use case
@@ -79,6 +79,8 @@
  *               collapse.
  * @activate_on_init: Activate the slice immediately after it is programmed
  * @write_scid_en: Bit enables write cache support for a given scid.
+ * @write_scid_cacheable_en: Enables write cache cacheable support for a
+ *			     given scid (not supported on v2 or older hardware).
  */
 struct llcc_slice_config {
 	u32 usecase_id;
@@ -94,12 +96,19 @@ struct llcc_slice_config {
 	bool retain_on_pc;
 	bool activate_on_init;
 	bool write_scid_en;
+	bool write_scid_cacheable_en;
 };
 
 struct qcom_llcc_config {
 	const struct llcc_slice_config *sct_data;
 	int size;
 	bool need_llcc_cfg;
+	const u32 *reg_offset;
+};
+
+enum llcc_reg_offset {
+	LLCC_COMMON_HW_INFO,
+	LLCC_COMMON_STATUS0,
 };
 
 static const struct llcc_slice_config sc7180_data[] =  {
@@ -217,42 +226,96 @@ static const struct llcc_slice_config sm8350_data[] =  {
 	{ LLCC_CPUHWT,   5, 512,   1, 1, 0xfff, 0x0, 0, 0, 0, 0, 0, 1 },
 };
 
+static const struct llcc_slice_config sm8450_data[] =  {
+	{LLCC_CPUSS,     1, 3072, 1, 0, 0xFFFF, 0x0,   0, 0, 0, 1, 1, 0, 0 },
+	{LLCC_VIDSC0,    2,  512, 3, 1, 0xFFFF, 0x0,   0, 0, 0, 1, 0, 0, 0 },
+	{LLCC_AUDIO,     6, 1024, 1, 1, 0xFFFF, 0x0,   0, 0, 0, 0, 0, 0, 0 },
+	{LLCC_MDMHPGRW,  7, 1024, 3, 0, 0xFFFF, 0x0,   0, 0, 0, 1, 0, 0, 0 },
+	{LLCC_MODHW,     9, 1024, 1, 1, 0xFFFF, 0x0,   0, 0, 0, 1, 0, 0, 0 },
+	{LLCC_CMPT,     10, 4096, 1, 1, 0xFFFF, 0x0,   0, 0, 0, 1, 0, 0, 0 },
+	{LLCC_GPUHTW,   11,  512, 1, 1, 0xFFFF, 0x0,   0, 0, 0, 1, 0, 0, 0 },
+	{LLCC_GPU,      12, 2048, 1, 1, 0xFFFF, 0x0,   0, 0, 0, 1, 0, 1, 0 },
+	{LLCC_MMUHWT,   13,  768, 1, 1, 0xFFFF, 0x0,   0, 0, 0, 0, 1, 0, 0 },
+	{LLCC_DISP,     16, 4096, 2, 1, 0xFFFF, 0x0,   0, 0, 0, 1, 0, 0, 0 },
+	{LLCC_MDMPNG,   21, 1024, 1, 1, 0xF000, 0x0,   0, 0, 0, 1, 0, 0, 0 },
+	{LLCC_AUDHW,    22, 1024, 1, 1, 0xFFFF, 0x0,   0, 0, 0, 0, 0, 0, 0 },
+	{LLCC_CVP,      28,  256, 3, 1, 0xFFFF, 0x0,   0, 0, 0, 1, 0, 0, 0 },
+	{LLCC_MODPE,    29,   64, 1, 1, 0xF000, 0x0,   0, 0, 0, 1, 0, 0, 0 },
+	{LLCC_APTCM,    30, 1024, 3, 1, 0x0,    0xF0,  1, 0, 0, 1, 0, 0, 0 },
+	{LLCC_WRCACHE,  31,  512, 1, 1, 0xFFFF, 0x0,   0, 0, 0, 0, 1, 0, 0 },
+	{LLCC_CVPFW,    17,  512, 1, 1, 0xFFFF, 0x0,   0, 0, 0, 1, 0, 0, 0 },
+	{LLCC_CPUSS1,    3, 1024, 1, 1, 0xFFFF, 0x0,   0, 0, 0, 1, 0, 0, 0 },
+	{LLCC_CAMEXP0,   4,  256, 3, 1, 0xFFFF, 0x0,   0, 0, 0, 1, 0, 0, 0 },
+	{LLCC_CPUMTE,   23,  256, 1, 1, 0x0FFF, 0x0,   0, 0, 0, 0, 1, 0, 0 },
+	{LLCC_CPUHWT,    5,  512, 1, 1, 0xFFFF, 0x0,   0, 0, 0, 1, 1, 0, 0 },
+	{LLCC_CAMEXP1,  27,  256, 3, 1, 0xFFFF, 0x0,   0, 0, 0, 1, 0, 0, 0 },
+	{LLCC_AENPU,     8, 2048, 1, 1, 0xFFFF, 0x0,   0, 0, 0, 0, 0, 0, 0 },
+};
+
+static const u32 llcc_v1_2_reg_offset[] = {
+	[LLCC_COMMON_HW_INFO]	= 0x00030000,
+	[LLCC_COMMON_STATUS0]	= 0x0003000c,
+};
+
+static const u32 llcc_v21_reg_offset[] = {
+	[LLCC_COMMON_HW_INFO]	= 0x00034000,
+	[LLCC_COMMON_STATUS0]	= 0x0003400c,
+};
+
 static const struct qcom_llcc_config sc7180_cfg = {
 	.sct_data	= sc7180_data,
 	.size		= ARRAY_SIZE(sc7180_data),
 	.need_llcc_cfg	= true,
+	.reg_offset	= llcc_v1_2_reg_offset,
 };
 
 static const struct qcom_llcc_config sc7280_cfg = {
 	.sct_data	= sc7280_data,
 	.size		= ARRAY_SIZE(sc7280_data),
 	.need_llcc_cfg	= true,
+	.reg_offset	= llcc_v1_2_reg_offset,
 };
 
 static const struct qcom_llcc_config sdm845_cfg = {
 	.sct_data	= sdm845_data,
 	.size		= ARRAY_SIZE(sdm845_data),
 	.need_llcc_cfg	= false,
+	.reg_offset	= llcc_v1_2_reg_offset,
 };
 
 static const struct qcom_llcc_config sm6350_cfg = {
 	.sct_data	= sm6350_data,
 	.size		= ARRAY_SIZE(sm6350_data),
+	.need_llcc_cfg	= true,
+	.reg_offset	= llcc_v1_2_reg_offset,
 };
 
 static const struct qcom_llcc_config sm8150_cfg = {
 	.sct_data       = sm8150_data,
 	.size           = ARRAY_SIZE(sm8150_data),
+	.need_llcc_cfg	= true,
+	.reg_offset	= llcc_v1_2_reg_offset,
 };
 
 static const struct qcom_llcc_config sm8250_cfg = {
 	.sct_data       = sm8250_data,
 	.size           = ARRAY_SIZE(sm8250_data),
+	.need_llcc_cfg	= true,
+	.reg_offset	= llcc_v1_2_reg_offset,
 };
 
 static const struct qcom_llcc_config sm8350_cfg = {
 	.sct_data       = sm8350_data,
 	.size           = ARRAY_SIZE(sm8350_data),
+	.need_llcc_cfg	= true,
+	.reg_offset	= llcc_v1_2_reg_offset,
+};
+
+static const struct qcom_llcc_config sm8450_cfg = {
+	.sct_data       = sm8450_data,
+	.size           = ARRAY_SIZE(sm8450_data),
+	.need_llcc_cfg	= true,
+	.reg_offset	= llcc_v21_reg_offset,
 };
 
 static struct llcc_drv_data *drv_data = (void *) -EPROBE_DEFER;
@@ -504,7 +567,7 @@ static int _qcom_llcc_cfg_program(const struct llcc_slice_config *config,
 			return ret;
 	}
 
-	if (drv_data->major_version == 2) {
+	if (drv_data->version >= LLCC_VERSION_2_0_0_0) {
 		u32 wren;
 
 		wren = config->write_scid_en << config->slice_id;
@@ -514,6 +577,16 @@ static int _qcom_llcc_cfg_program(const struct llcc_slice_config *config,
 			return ret;
 	}
 
+	if (drv_data->version >= LLCC_VERSION_2_1_0_0) {
+		u32 wr_cache_en;
+
+		wr_cache_en = config->write_scid_cacheable_en << config->slice_id;
+		ret = regmap_update_bits(drv_data->bcast_regmap, LLCC_TRP_WRSC_CACHEABLE_EN,
+					 BIT(config->slice_id), wr_cache_en);
+		if (ret)
+			return ret;
+	}
+
 	if (config->activate_on_init) {
 		desc.slice_id = config->slice_id;
 		ret = llcc_slice_activate(&desc);
@@ -598,15 +671,18 @@ static int qcom_llcc_probe(struct platform_device *pdev)
 		goto err;
 	}
 
-	/* Extract major version of the IP */
-	ret = regmap_read(drv_data->bcast_regmap, LLCC_COMMON_HW_INFO, &version);
+	cfg = of_device_get_match_data(&pdev->dev);
+
+	/* Extract version of the IP */
+	ret = regmap_read(drv_data->bcast_regmap, cfg->reg_offset[LLCC_COMMON_HW_INFO],
+			  &version);
 	if (ret)
 		goto err;
 
-	drv_data->major_version = FIELD_GET(LLCC_MAJOR_VERSION_MASK, version);
+	drv_data->version = version;
 
-	ret = regmap_read(drv_data->regmap, LLCC_COMMON_STATUS0,
-						&num_banks);
+	ret = regmap_read(drv_data->regmap, cfg->reg_offset[LLCC_COMMON_STATUS0],
+			  &num_banks);
 	if (ret)
 		goto err;
 
@@ -614,7 +690,6 @@ static int qcom_llcc_probe(struct platform_device *pdev)
 	num_banks >>= LLCC_LB_CNT_SHIFT;
 	drv_data->num_banks = num_banks;
 
-	cfg = of_device_get_match_data(&pdev->dev);
 	llcc_cfg = cfg->sct_data;
 	sz = cfg->size;
 
@@ -632,9 +707,8 @@ static int qcom_llcc_probe(struct platform_device *pdev)
 	for (i = 0; i < num_banks; i++)
 		drv_data->offsets[i] = i * BANK_OFFSET_STRIDE;
 
-	drv_data->bitmap = devm_kcalloc(dev,
-	BITS_TO_LONGS(drv_data->max_slices), sizeof(unsigned long),
-						GFP_KERNEL);
+	drv_data->bitmap = devm_bitmap_zalloc(dev, drv_data->max_slices,
+					      GFP_KERNEL);
 	if (!drv_data->bitmap) {
 		ret = -ENOMEM;
 		goto err;
@@ -672,6 +746,7 @@ static const struct of_device_id qcom_llcc_of_match[] = {
 	{ .compatible = "qcom,sm8150-llcc", .data = &sm8150_cfg },
 	{ .compatible = "qcom,sm8250-llcc", .data = &sm8250_cfg },
 	{ .compatible = "qcom,sm8350-llcc", .data = &sm8350_cfg },
+	{ .compatible = "qcom,sm8450-llcc", .data = &sm8450_cfg },
 	{ }
 };
 

drivers/soc/qcom/mdt_loader.c

@@ -31,6 +31,44 @@ static bool mdt_phdr_valid(const struct elf32_phdr *phdr)
 	return true;
 }
 
+static ssize_t mdt_load_split_segment(void *ptr, const struct elf32_phdr *phdrs,
+				      unsigned int segment, const char *fw_name,
+				      struct device *dev)
+{
+	const struct elf32_phdr *phdr = &phdrs[segment];
+	const struct firmware *seg_fw;
+	char *seg_name;
+	ssize_t ret;
+
+	if (strlen(fw_name) < 4)
+		return -EINVAL;
+
+	seg_name = kstrdup(fw_name, GFP_KERNEL);
+	if (!seg_name)
+		return -ENOMEM;
+
+	sprintf(seg_name + strlen(fw_name) - 3, "b%02d", segment);
+	ret = request_firmware_into_buf(&seg_fw, seg_name, dev,
+					ptr, phdr->p_filesz);
+	if (ret) {
+		dev_err(dev, "error %zd loading %s\n", ret, seg_name);
+		kfree(seg_name);
+		return ret;
+	}
+
+	if (seg_fw->size != phdr->p_filesz) {
+		dev_err(dev,
+			"failed to load segment %d from truncated file %s\n",
+			segment, seg_name);
+		ret = -EINVAL;
+	}
+
+	release_firmware(seg_fw);
+	kfree(seg_name);
+
+	return ret;
+}
+
 /**
  * qcom_mdt_get_size() - acquire size of the memory region needed to load mdt
  * @fw:		firmware object for the mdt file
@@ -83,13 +121,17 @@ EXPORT_SYMBOL_GPL(qcom_mdt_get_size);
  *
  * Return: pointer to data, or ERR_PTR()
  */
-void *qcom_mdt_read_metadata(const struct firmware *fw, size_t *data_len)
+void *qcom_mdt_read_metadata(const struct firmware *fw, size_t *data_len,
+			     const char *fw_name, struct device *dev)
 {
 	const struct elf32_phdr *phdrs;
 	const struct elf32_hdr *ehdr;
+	unsigned int hash_segment = 0;
 	size_t hash_offset;
 	size_t hash_size;
 	size_t ehdr_size;
+	unsigned int i;
+	ssize_t ret;
 	void *data;
 
 	ehdr = (struct elf32_hdr *)fw->data;
@@ -101,24 +143,44 @@ void *qcom_mdt_read_metadata(const struct firmware *fw, size_t *data_len)
 	if (phdrs[0].p_type == PT_LOAD)
 		return ERR_PTR(-EINVAL);
 
-	if ((phdrs[1].p_flags & QCOM_MDT_TYPE_MASK) != QCOM_MDT_TYPE_HASH)
+	for (i = 1; i < ehdr->e_phnum; i++) {
+		if ((phdrs[i].p_flags & QCOM_MDT_TYPE_MASK) == QCOM_MDT_TYPE_HASH) {
+			hash_segment = i;
+			break;
+		}
+	}
+
+	if (!hash_segment) {
+		dev_err(dev, "no hash segment found in %s\n", fw_name);
 		return ERR_PTR(-EINVAL);
+	}
 
 	ehdr_size = phdrs[0].p_filesz;
-	hash_size = phdrs[1].p_filesz;
+	hash_size = phdrs[hash_segment].p_filesz;
 
 	data = kmalloc(ehdr_size + hash_size, GFP_KERNEL);
 	if (!data)
 		return ERR_PTR(-ENOMEM);
 
-	/* Is the header and hash already packed */
-	if (ehdr_size + hash_size == fw->size)
-		hash_offset = phdrs[0].p_filesz;
-	else
-		hash_offset = phdrs[1].p_offset;
-
+	/* Copy ELF header */
 	memcpy(data, fw->data, ehdr_size);
-	memcpy(data + ehdr_size, fw->data + hash_offset, hash_size);
+
+	if (ehdr_size + hash_size == fw->size) {
+		/* Firmware is split and hash is packed following the ELF header */
+		hash_offset = phdrs[0].p_filesz;
+		memcpy(data + ehdr_size, fw->data + hash_offset, hash_size);
+	} else if (phdrs[hash_segment].p_offset + hash_size <= fw->size) {
+		/* Hash is in its own segment, but within the loaded file */
+		hash_offset = phdrs[hash_segment].p_offset;
+		memcpy(data + ehdr_size, fw->data + hash_offset, hash_size);
+	} else {
+		/* Hash is in its own segment, beyond the loaded file */
+		ret = mdt_load_split_segment(data + ehdr_size, phdrs, hash_segment, fw_name, dev);
+		if (ret) {
+			kfree(data);
+			return ERR_PTR(ret);
+		}
+	}
 
 	*data_len = ehdr_size + hash_size;
 
@@ -126,23 +188,85 @@ void *qcom_mdt_read_metadata(const struct firmware *fw, size_t *data_len)
 }
 EXPORT_SYMBOL_GPL(qcom_mdt_read_metadata);
 
+/**
+ * qcom_mdt_pas_init() - initialize PAS region for firmware loading
+ * @dev:	device handle to associate resources with
+ * @fw:		firmware object for the mdt file
+ * @firmware:	name of the firmware, for construction of segment file names
+ * @pas_id:	PAS identifier
+ * @mem_phys:	physical address of allocated memory region
+ * @ctx:	PAS metadata context, to be released by caller
+ *
+ * Returns 0 on success, negative errno otherwise.
+ */
+int qcom_mdt_pas_init(struct device *dev, const struct firmware *fw,
+		      const char *fw_name, int pas_id, phys_addr_t mem_phys,
+		      struct qcom_scm_pas_metadata *ctx)
+{
+	const struct elf32_phdr *phdrs;
+	const struct elf32_phdr *phdr;
+	const struct elf32_hdr *ehdr;
+	phys_addr_t min_addr = PHYS_ADDR_MAX;
+	phys_addr_t max_addr = 0;
+	size_t metadata_len;
+	void *metadata;
+	int ret;
+	int i;
+
+	ehdr = (struct elf32_hdr *)fw->data;
+	phdrs = (struct elf32_phdr *)(ehdr + 1);
+
+	for (i = 0; i < ehdr->e_phnum; i++) {
+		phdr = &phdrs[i];
+
+		if (!mdt_phdr_valid(phdr))
+			continue;
+
+		if (phdr->p_paddr < min_addr)
+			min_addr = phdr->p_paddr;
+
+		if (phdr->p_paddr + phdr->p_memsz > max_addr)
+			max_addr = ALIGN(phdr->p_paddr + phdr->p_memsz, SZ_4K);
+	}
+
+	metadata = qcom_mdt_read_metadata(fw, &metadata_len, fw_name, dev);
+	if (IS_ERR(metadata)) {
+		ret = PTR_ERR(metadata);
+		dev_err(dev, "error %d reading firmware %s metadata\n", ret, fw_name);
+		goto out;
+	}
+
+	ret = qcom_scm_pas_init_image(pas_id, metadata, metadata_len, ctx);
+	kfree(metadata);
+	if (ret) {
+		/* Invalid firmware metadata */
+		dev_err(dev, "error %d initializing firmware %s\n", ret, fw_name);
+		goto out;
+	}
+
+	ret = qcom_scm_pas_mem_setup(pas_id, mem_phys, max_addr - min_addr);
+	if (ret) {
+		/* Unable to set up relocation */
+		dev_err(dev, "error %d setting up firmware %s\n", ret, fw_name);
+		goto out;
+	}
+
+out:
+	return ret;
+}
+EXPORT_SYMBOL_GPL(qcom_mdt_pas_init);
+
 static int __qcom_mdt_load(struct device *dev, const struct firmware *fw,
-			   const char *firmware, int pas_id, void *mem_region,
+			   const char *fw_name, int pas_id, void *mem_region,
 			   phys_addr_t mem_phys, size_t mem_size,
 			   phys_addr_t *reloc_base, bool pas_init)
 {
 	const struct elf32_phdr *phdrs;
 	const struct elf32_phdr *phdr;
 	const struct elf32_hdr *ehdr;
-	const struct firmware *seg_fw;
 	phys_addr_t mem_reloc;
 	phys_addr_t min_addr = PHYS_ADDR_MAX;
-	phys_addr_t max_addr = 0;
-	size_t metadata_len;
-	size_t fw_name_len;
 	ssize_t offset;
-	void *metadata;
-	char *fw_name;
 	bool relocate = false;
 	void *ptr;
 	int ret = 0;
@@ -154,34 +278,6 @@ static int __qcom_mdt_load(struct device *dev, const struct firmware *fw,
 	ehdr = (struct elf32_hdr *)fw->data;
 	phdrs = (struct elf32_phdr *)(ehdr + 1);
 
-	fw_name_len = strlen(firmware);
-	if (fw_name_len <= 4)
-		return -EINVAL;
-
-	fw_name = kstrdup(firmware, GFP_KERNEL);
-	if (!fw_name)
-		return -ENOMEM;
-
-	if (pas_init) {
-		metadata = qcom_mdt_read_metadata(fw, &metadata_len);
-		if (IS_ERR(metadata)) {
-			ret = PTR_ERR(metadata);
-			dev_err(dev, "error %d reading firmware %s metadata\n",
-				ret, fw_name);
-			goto out;
-		}
-
-		ret = qcom_scm_pas_init_image(pas_id, metadata, metadata_len);
-
-		kfree(metadata);
-		if (ret) {
-			/* Invalid firmware metadata */
-			dev_err(dev, "error %d initializing firmware %s\n",
-				ret, fw_name);
-			goto out;
-		}
-	}
-
 	for (i = 0; i < ehdr->e_phnum; i++) {
 		phdr = &phdrs[i];
 
@@ -193,23 +289,9 @@ static int __qcom_mdt_load(struct device *dev, const struct firmware *fw,
 
 		if (phdr->p_paddr < min_addr)
 			min_addr = phdr->p_paddr;
-
-		if (phdr->p_paddr + phdr->p_memsz > max_addr)
-			max_addr = ALIGN(phdr->p_paddr + phdr->p_memsz, SZ_4K);
 	}
 
 	if (relocate) {
-		if (pas_init) {
-			ret = qcom_scm_pas_mem_setup(pas_id, mem_phys,
-						     max_addr - min_addr);
-			if (ret) {
-				/* Unable to set up relocation */
-				dev_err(dev, "error %d setting up firmware %s\n",
-					ret, fw_name);
-				goto out;
-			}
-		}
-
 		/*
 		 * The image is relocatable, so offset each segment based on
 		 * the lowest segment address.
@@ -246,7 +328,8 @@ static int __qcom_mdt_load(struct device *dev, const struct firmware *fw,
 
 		ptr = mem_region + offset;
 
-		if (phdr->p_filesz && phdr->p_offset < fw->size) {
+		if (phdr->p_filesz && phdr->p_offset < fw->size &&
+		    phdr->p_offset + phdr->p_filesz <= fw->size) {
 			/* Firmware is large enough to be non-split */
 			if (phdr->p_offset + phdr->p_filesz > fw->size) {
 				dev_err(dev, "file %s segment %d would be truncated\n",
@@ -258,25 +341,9 @@ static int __qcom_mdt_load(struct device *dev, const struct firmware *fw,
 			memcpy(ptr, fw->data + phdr->p_offset, phdr->p_filesz);
 		} else if (phdr->p_filesz) {
 			/* Firmware not large enough, load split-out segments */
-			sprintf(fw_name + fw_name_len - 3, "b%02d", i);
-			ret = request_firmware_into_buf(&seg_fw, fw_name, dev,
-							ptr, phdr->p_filesz);
-			if (ret) {
-				dev_err(dev, "error %d loading %s\n",
-					ret, fw_name);
+			ret = mdt_load_split_segment(ptr, phdrs, i, fw_name, dev);
+			if (ret)
 				break;
-			}
-
-			if (seg_fw->size != phdr->p_filesz) {
-				dev_err(dev,
-					"failed to load segment %d from truncated file %s\n",
-					i, fw_name);
-				release_firmware(seg_fw);
-				ret = -EINVAL;
-				break;
-			}
-
-			release_firmware(seg_fw);
 		}
 
 		if (phdr->p_memsz > phdr->p_filesz)
@@ -286,9 +353,6 @@ static int __qcom_mdt_load(struct device *dev, const struct firmware *fw,
 	if (reloc_base)
 		*reloc_base = mem_reloc;
 
-out:
-	kfree(fw_name);
-
 	return ret;
 }
 
@@ -310,6 +374,12 @@ int qcom_mdt_load(struct device *dev, const struct firmware *fw,
 		  phys_addr_t mem_phys, size_t mem_size,
 		  phys_addr_t *reloc_base)
 {
+	int ret;
+
+	ret = qcom_mdt_pas_init(dev, fw, firmware, pas_id, mem_phys, NULL);
+	if (ret)
+		return ret;
+
 	return __qcom_mdt_load(dev, fw, firmware, pas_id, mem_region, mem_phys,
 			       mem_size, reloc_base, true);
 }

drivers/soc/qcom/ocmem.c

@@ -206,6 +206,7 @@ struct ocmem *of_get_ocmem(struct device *dev)
 	ocmem = platform_get_drvdata(pdev);
 	if (!ocmem) {
 		dev_err(dev, "Cannot get ocmem\n");
+		put_device(&pdev->dev);
 		return ERR_PTR(-ENODEV);
 	}
 	return ocmem;

drivers/soc/qcom/qcom_aoss.c

@@ -451,7 +451,11 @@ struct qmp *qmp_get(struct device *dev)
 
 	qmp = platform_get_drvdata(pdev);
 
-	return qmp ? qmp : ERR_PTR(-EPROBE_DEFER);
+	if (!qmp) {
+		put_device(&pdev->dev);
+		return ERR_PTR(-EPROBE_DEFER);
+	}
+	return qmp;
 }
 EXPORT_SYMBOL(qmp_get);
 
@@ -497,7 +501,7 @@ static int qmp_probe(struct platform_device *pdev)
 	}
 
 	irq = platform_get_irq(pdev, 0);
-	ret = devm_request_irq(&pdev->dev, irq, qmp_intr, IRQF_ONESHOT,
+	ret = devm_request_irq(&pdev->dev, irq, qmp_intr, 0,
 			       "aoss-qmp", qmp);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "failed to request interrupt\n");

drivers/soc/qcom/rpmpd.c

@@ -138,6 +138,22 @@ static const struct rpmpd_desc mdm9607_desc = {
 	.max_state = RPM_SMD_LEVEL_TURBO,
 };
 
+/* msm8226 RPM Power Domains */
+DEFINE_RPMPD_PAIR(msm8226, vddcx, vddcx_ao, SMPA, CORNER, 1);
+DEFINE_RPMPD_VFC(msm8226, vddcx_vfc, SMPA, 1);
+
+static struct rpmpd *msm8226_rpmpds[] = {
+	[MSM8226_VDDCX] =	&msm8226_vddcx,
+	[MSM8226_VDDCX_AO] =	&msm8226_vddcx_ao,
+	[MSM8226_VDDCX_VFC] =	&msm8226_vddcx_vfc,
+};
+
+static const struct rpmpd_desc msm8226_desc = {
+	.rpmpds = msm8226_rpmpds,
+	.num_pds = ARRAY_SIZE(msm8226_rpmpds),
+	.max_state = MAX_CORNER_RPMPD_STATE,
+};
+
 /* msm8939 RPM Power Domains */
 DEFINE_RPMPD_PAIR(msm8939, vddmd, vddmd_ao, SMPA, CORNER, 1);
 DEFINE_RPMPD_VFC(msm8939, vddmd_vfc, SMPA, 1);
@@ -436,6 +452,7 @@ static const struct rpmpd_desc qcm2290_desc = {
 
 static const struct of_device_id rpmpd_match_table[] = {
 	{ .compatible = "qcom,mdm9607-rpmpd", .data = &mdm9607_desc },
+	{ .compatible = "qcom,msm8226-rpmpd", .data = &msm8226_desc },
 	{ .compatible = "qcom,msm8916-rpmpd", .data = &msm8916_desc },
 	{ .compatible = "qcom,msm8939-rpmpd", .data = &msm8939_desc },
 	{ .compatible = "qcom,msm8953-rpmpd", .data = &msm8953_desc },
@@ -610,6 +627,9 @@ static int rpmpd_probe(struct platform_device *pdev)
 
 	data->domains = devm_kcalloc(&pdev->dev, num, sizeof(*data->domains),
 				     GFP_KERNEL);
+	if (!data->domains)
+		return -ENOMEM;
+
 	data->num_domains = num;
 
 	for (i = 0; i < num; i++) {

drivers/soc/qcom/socinfo.c

@@ -104,6 +104,14 @@ static const char *const pmic_models[] = {
 	[36] = "PM8009",
 	[38] = "PM8150C",
 	[41] = "SMB2351",
+	[47] = "PMK8350",
+	[48] = "PM8350",
+	[49] = "PM8350C",
+	[50] = "PM8350B",
+	[51] = "PMR735A",
+	[52] = "PMR735B",
+	[58] = "PM8450",
+	[65] = "PM8010",
 };
 #endif /* CONFIG_DEBUG_FS */
 
@@ -314,10 +322,14 @@ static const struct soc_id soc_id[] = {
 	{ 422, "IPQ6010" },
 	{ 425, "SC7180" },
 	{ 434, "SM6350" },
+	{ 439, "SM8350" },
+	{ 449, "SC8280XP" },
 	{ 453, "IPQ6005" },
 	{ 455, "QRB5165" },
 	{ 457, "SM8450" },
 	{ 459, "SM7225" },
+	{ 460, "SA8540P" },
+	{ 480, "SM8450" },
 };
 
 static const char *socinfo_machine(struct device *dev, unsigned int id)

drivers/soc/renesas/Kconfig

@@ -40,6 +40,11 @@ config ARCH_RMOBILE
 	select SYS_SUPPORTS_SH_TMU
 	select SYSC_RMOBILE
 
+config ARCH_RZG2L
+	bool
+	select PM
+	select PM_GENERIC_DOMAINS
+
 config ARCH_RZN1
 	bool
 	select ARM_AMBA
@@ -293,9 +298,16 @@ config ARCH_R8A774B1
 
 config ARCH_R9A07G044
 	bool "ARM64 Platform support for RZ/G2L"
+	select ARCH_RZG2L
 	help
 	  This enables support for the Renesas RZ/G2L SoC variants.
 
+config ARCH_R9A07G054
+	bool "ARM64 Platform support for RZ/V2L"
+	select ARCH_RZG2L
+	help
+	  This enables support for the Renesas RZ/V2L SoC variants.
+
 endif # ARM64
 
 config RST_RCAR

drivers/soc/renesas/renesas-soc.c

@@ -64,6 +64,10 @@ static const struct renesas_family fam_rzg2l __initconst __maybe_unused = {
 	.name	= "RZ/G2L",
 };
 
+static const struct renesas_family fam_rzv2l __initconst __maybe_unused = {
+	.name	= "RZ/V2L",
+};
+
 static const struct renesas_family fam_shmobile __initconst __maybe_unused = {
 	.name	= "SH-Mobile",
 	.reg	= 0xe600101c,		/* CCCR (Common Chip Code Register) */
@@ -144,6 +148,11 @@ static const struct renesas_soc soc_rz_g2l __initconst __maybe_unused = {
 	.id     = 0x841c447,
 };
 
+static const struct renesas_soc soc_rz_v2l __initconst __maybe_unused = {
+	.family = &fam_rzv2l,
+	.id     = 0x8447447,
+};
+
 static const struct renesas_soc soc_rcar_m1a __initconst __maybe_unused = {
 	.family	= &fam_rcar_gen1,
 };
@@ -334,6 +343,9 @@ static const struct of_device_id renesas_socs[] __initconst = {
 #if defined(CONFIG_ARCH_R9A07G044)
 	{ .compatible = "renesas,r9a07g044",	.data = &soc_rz_g2l },
 #endif
+#if defined(CONFIG_ARCH_R9A07G054)
+	{ .compatible = "renesas,r9a07g054",	.data = &soc_rz_v2l },
+#endif
 #ifdef CONFIG_ARCH_SH73A0
 	{ .compatible = "renesas,sh73a0",	.data = &soc_shmobile_ag5 },
 #endif
@@ -367,6 +379,7 @@ static const struct renesas_id id_prr __initconst = {
 static const struct of_device_id renesas_ids[] __initconst = {
 	{ .compatible = "renesas,bsid",			.data = &id_bsid },
 	{ .compatible = "renesas,r9a07g044-sysc",	.data = &id_rzg2l },
+	{ .compatible = "renesas,r9a07g054-sysc",	.data = &id_rzg2l },
 	{ .compatible = "renesas,prr",			.data = &id_prr },
 	{ /* sentinel */ }
 };
@@ -380,9 +393,11 @@ static int __init renesas_soc_init(void)
 	const struct renesas_soc *soc;
 	const struct renesas_id *id;
 	void __iomem *chipid = NULL;
+	const char *rev_prefix = "";
 	struct soc_device *soc_dev;
 	struct device_node *np;
 	const char *soc_id;
+	int ret;
 
 	match = of_match_node(renesas_socs, of_root);
 	if (!match)
@@ -403,6 +418,17 @@ static int __init renesas_soc_init(void)
 		chipid = ioremap(family->reg, 4);
 	}
 
+	soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
+	if (!soc_dev_attr)
+		return -ENOMEM;
+
+	np = of_find_node_by_path("/");
+	of_property_read_string(np, "model", &soc_dev_attr->machine);
+	of_node_put(np);
+
+	soc_dev_attr->family = kstrdup_const(family->name, GFP_KERNEL);
+	soc_dev_attr->soc_id = kstrdup_const(soc_id, GFP_KERNEL);
+
 	if (chipid) {
 		product = readl(chipid + id->offset);
 		iounmap(chipid);
@@ -417,41 +443,39 @@ static int __init renesas_soc_init(void)
 
 			eshi = ((product >> 4) & 0x0f) + 1;
 			eslo = product & 0xf;
+			soc_dev_attr->revision = kasprintf(GFP_KERNEL, "ES%u.%u",
+							   eshi, eslo);
+		}  else if (id == &id_rzg2l) {
+			eshi =  ((product >> 28) & 0x0f);
+			soc_dev_attr->revision = kasprintf(GFP_KERNEL, "%u",
+							   eshi);
+			rev_prefix = "Rev ";
 		}
 
 		if (soc->id &&
 		    ((product & id->mask) >> __ffs(id->mask)) != soc->id) {
 			pr_warn("SoC mismatch (product = 0x%x)\n", product);
-			return -ENODEV;
+			ret = -ENODEV;
+			goto free_soc_dev_attr;
 		}
 	}
 
-	soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
-	if (!soc_dev_attr)
-		return -ENOMEM;
-
-	np = of_find_node_by_path("/");
-	of_property_read_string(np, "model", &soc_dev_attr->machine);
-	of_node_put(np);
-
-	soc_dev_attr->family = kstrdup_const(family->name, GFP_KERNEL);
-	soc_dev_attr->soc_id = kstrdup_const(soc_id, GFP_KERNEL);
-	if (eshi)
-		soc_dev_attr->revision = kasprintf(GFP_KERNEL, "ES%u.%u", eshi,
-						   eslo);
-
-	pr_info("Detected Renesas %s %s %s\n", soc_dev_attr->family,
-		soc_dev_attr->soc_id, soc_dev_attr->revision ?: "");
+	pr_info("Detected Renesas %s %s %s%s\n", soc_dev_attr->family,
+		soc_dev_attr->soc_id, rev_prefix, soc_dev_attr->revision ?: "");
 
 	soc_dev = soc_device_register(soc_dev_attr);
 	if (IS_ERR(soc_dev)) {
-		kfree(soc_dev_attr->revision);
-		kfree_const(soc_dev_attr->soc_id);
-		kfree_const(soc_dev_attr->family);
-		kfree(soc_dev_attr);
-		return PTR_ERR(soc_dev);
+		ret = PTR_ERR(soc_dev);
+		goto free_soc_dev_attr;
 	}
 
 	return 0;
+
+free_soc_dev_attr:
+	kfree(soc_dev_attr->revision);
+	kfree_const(soc_dev_attr->soc_id);
+	kfree_const(soc_dev_attr->family);
+	kfree(soc_dev_attr);
+	return ret;
 }
 early_initcall(renesas_soc_init);

drivers/soc/tegra/fuse/fuse-tegra.c

@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0-only
 /*
- * Copyright (c) 2013-2014, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2013-2021, NVIDIA CORPORATION.  All rights reserved.
  */
 
 #include <linux/clk.h>
@@ -161,6 +161,12 @@ static const struct nvmem_cell_info tegra_fuse_cells[] = {
 		.bytes = 4,
 		.bit_offset = 0,
 		.nbits = 32,
+	}, {
+		.name = "gcplex-config-fuse",
+		.offset = 0x1c8,
+		.bytes = 4,
+		.bit_offset = 0,
+		.nbits = 32,
 	}, {
 		.name = "tsensor-realignment",
 		.offset = 0x1fc,
@@ -179,13 +185,25 @@ static const struct nvmem_cell_info tegra_fuse_cells[] = {
 		.bytes = 4,
 		.bit_offset = 0,
 		.nbits = 32,
+	}, {
+		.name = "pdi0",
+		.offset = 0x300,
+		.bytes = 4,
+		.bit_offset = 0,
+		.nbits = 32,
+	}, {
+		.name = "pdi1",
+		.offset = 0x304,
+		.bytes = 4,
+		.bit_offset = 0,
+		.nbits = 32,
 	},
 };
 
 static void tegra_fuse_restore(void *base)
 {
+	fuse->base = (void __iomem *)base;
 	fuse->clk = NULL;
-	fuse->base = base;
 }
 
 static int tegra_fuse_probe(struct platform_device *pdev)
@@ -195,7 +213,7 @@ static int tegra_fuse_probe(struct platform_device *pdev)
 	struct resource *res;
 	int err;
 
-	err = devm_add_action(&pdev->dev, tegra_fuse_restore, base);
+	err = devm_add_action(&pdev->dev, tegra_fuse_restore, (void __force *)base);
 	if (err)
 		return err;
 

drivers/soc/tegra/pmc.c

@@ -3,7 +3,7 @@
  * drivers/soc/tegra/pmc.c
  *
  * Copyright (c) 2010 Google, Inc
- * Copyright (c) 2018-2020, NVIDIA CORPORATION. All rights reserved.
+ * Copyright (c) 2018-2022, NVIDIA CORPORATION. All rights reserved.
  *
  * Author:
  *	Colin Cross <ccross@google.com>
@@ -54,6 +54,7 @@
 #include <dt-bindings/pinctrl/pinctrl-tegra-io-pad.h>
 #include <dt-bindings/gpio/tegra186-gpio.h>
 #include <dt-bindings/gpio/tegra194-gpio.h>
+#include <dt-bindings/gpio/tegra234-gpio.h>
 #include <dt-bindings/soc/tegra-pmc.h>
 
 #define PMC_CNTRL			0x0
@@ -3066,7 +3067,7 @@ static void tegra20_pmc_setup_irq_polarity(struct tegra_pmc *pmc,
 }
 
 static const struct tegra_pmc_soc tegra20_pmc_soc = {
-	.supports_core_domain = false,
+	.supports_core_domain = true,
 	.num_powergates = ARRAY_SIZE(tegra20_powergates),
 	.powergates = tegra20_powergates,
 	.num_cpu_powergates = 0,
@@ -3127,7 +3128,7 @@ static const char * const tegra30_reset_sources[] = {
 };
 
 static const struct tegra_pmc_soc tegra30_pmc_soc = {
-	.supports_core_domain = false,
+	.supports_core_domain = true,
 	.num_powergates = ARRAY_SIZE(tegra30_powergates),
 	.powergates = tegra30_powergates,
 	.num_cpu_powergates = ARRAY_SIZE(tegra30_cpu_powergates),
@@ -3788,6 +3789,11 @@ static const char * const tegra234_reset_sources[] = {
 	"FUSECRC",
 };
 
+static const struct tegra_wake_event tegra234_wake_events[] = {
+	TEGRA_WAKE_GPIO("power", 29, 1, TEGRA234_AON_GPIO(EE, 4)),
+	TEGRA_WAKE_IRQ("rtc", 73, 10),
+};
+
 static const struct tegra_pmc_soc tegra234_pmc_soc = {
 	.supports_core_domain = false,
 	.num_powergates = 0,
@@ -3812,8 +3818,8 @@ static const struct tegra_pmc_soc tegra234_pmc_soc = {
 	.num_reset_sources = ARRAY_SIZE(tegra234_reset_sources),
 	.reset_levels = tegra186_reset_levels,
 	.num_reset_levels = ARRAY_SIZE(tegra186_reset_levels),
-	.num_wake_events = 0,
-	.wake_events = NULL,
+	.num_wake_events = ARRAY_SIZE(tegra234_wake_events),
+	.wake_events = tegra234_wake_events,
 	.pmc_clks_data = NULL,
 	.num_pmc_clks = 0,
 	.has_blink_output = false,

drivers/soc/ti/k3-ringacc.c

@@ -1402,12 +1402,10 @@ static int k3_ringacc_init(struct platform_device *pdev,
 				      sizeof(*ringacc->rings) *
 				      ringacc->num_rings,
 				      GFP_KERNEL);
-	ringacc->rings_inuse = devm_kcalloc(dev,
-					    BITS_TO_LONGS(ringacc->num_rings),
-					    sizeof(unsigned long), GFP_KERNEL);
-	ringacc->proxy_inuse = devm_kcalloc(dev,
-					    BITS_TO_LONGS(ringacc->num_proxies),
-					    sizeof(unsigned long), GFP_KERNEL);
+	ringacc->rings_inuse = devm_bitmap_zalloc(dev, ringacc->num_rings,
+						  GFP_KERNEL);
+	ringacc->proxy_inuse = devm_bitmap_zalloc(dev, ringacc->num_proxies,
+						  GFP_KERNEL);
 
 	if (!ringacc->rings || !ringacc->rings_inuse || !ringacc->proxy_inuse)
 		return -ENOMEM;
@@ -1483,9 +1481,8 @@ struct k3_ringacc *k3_ringacc_dmarings_init(struct platform_device *pdev,
 				      sizeof(*ringacc->rings) *
 				      ringacc->num_rings * 2,
 				      GFP_KERNEL);
-	ringacc->rings_inuse = devm_kcalloc(dev,
-					    BITS_TO_LONGS(ringacc->num_rings),
-					    sizeof(unsigned long), GFP_KERNEL);
+	ringacc->rings_inuse = devm_bitmap_zalloc(dev, ringacc->num_rings,
+						  GFP_KERNEL);
 
 	if (!ringacc->rings || !ringacc->rings_inuse)
 		return ERR_PTR(-ENOMEM);

drivers/soc/ti/k3-socinfo.c

@@ -42,6 +42,7 @@ static const struct k3_soc_id {
 	{ 0xBB6D, "J7200" },
 	{ 0xBB38, "AM64X" },
 	{ 0xBB75, "J721S2"},
+	{ 0xBB7E, "AM62X" },
 };
 
 static int

drivers/soc/ti/smartreflex.c

@@ -819,7 +819,7 @@ static int omap_sr_probe(struct platform_device *pdev)
 {
 	struct omap_sr *sr_info;
 	struct omap_sr_data *pdata = pdev->dev.platform_data;
-	struct resource *mem, *irq;
+	struct resource *mem;
 	struct dentry *nvalue_dir;
 	int i, ret = 0;
 
@@ -844,7 +844,11 @@ static int omap_sr_probe(struct platform_device *pdev)
 	if (IS_ERR(sr_info->base))
 		return PTR_ERR(sr_info->base);
 
-	irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+	ret = platform_get_irq_optional(pdev, 0);
+	if (ret < 0 && ret != -ENXIO)
+		return dev_err_probe(&pdev->dev, ret, "failed to get IRQ resource\n");
+	if (ret > 0)
+		sr_info->irq = ret;
 
 	sr_info->fck = devm_clk_get(pdev->dev.parent, "fck");
 	if (IS_ERR(sr_info->fck))
@@ -870,9 +874,6 @@ static int omap_sr_probe(struct platform_device *pdev)
 	sr_info->autocomp_active = false;
 	sr_info->ip_type = pdata->ip_type;
 
-	if (irq)
-		sr_info->irq = irq->start;
-
 	sr_set_clk_length(sr_info);
 
 	list_add(&sr_info->node, &sr_list);
@@ -926,7 +927,7 @@ static int omap_sr_probe(struct platform_device *pdev)
 
 	}
 
-	return ret;
+	return 0;
 
 err_debugfs:
 	debugfs_remove_recursive(sr_info->dbg_dir);

drivers/soc/ti/wkup_m3_ipc.c

@@ -450,9 +450,9 @@ static int wkup_m3_ipc_probe(struct platform_device *pdev)
 		return PTR_ERR(m3_ipc->ipc_mem_base);
 
 	irq = platform_get_irq(pdev, 0);
-	if (!irq) {
+	if (irq < 0) {
 		dev_err(&pdev->dev, "no irq resource\n");
-		return -ENXIO;
+		return irq;
 	}
 
 	ret = devm_request_irq(dev, irq, wkup_m3_txev_handler,

drivers/tee/amdtee/call.c

@@ -122,7 +122,7 @@ static int amd_params_to_tee_params(struct tee_param *tee, u32 count,
 }
 
 static DEFINE_MUTEX(ta_refcount_mutex);
-static struct list_head ta_list = LIST_HEAD_INIT(ta_list);
+static LIST_HEAD(ta_list);
 
 static u32 get_ta_refcount(u32 ta_handle)
 {

drivers/tee/amdtee/shm_pool.c

@@ -8,13 +8,17 @@
 #include <linux/psp-sev.h>
 #include "amdtee_private.h"
 
-static int pool_op_alloc(struct tee_shm_pool_mgr *poolm, struct tee_shm *shm,
-			 size_t size)
+static int pool_op_alloc(struct tee_shm_pool *pool, struct tee_shm *shm,
+			 size_t size, size_t align)
 {
 	unsigned int order = get_order(size);
 	unsigned long va;
 	int rc;
 
+	/*
+	 * Ignore alignment since this is already going to be page aligned
+	 * and there's no need for any larger alignment.
+	 */
 	va = __get_free_pages(GFP_KERNEL | __GFP_ZERO, order);
 	if (!va)
 		return -ENOMEM;
@@ -34,7 +38,7 @@ static int pool_op_alloc(struct tee_shm_pool_mgr *poolm, struct tee_shm *shm,
 	return 0;
 }
 
-static void pool_op_free(struct tee_shm_pool_mgr *poolm, struct tee_shm *shm)
+static void pool_op_free(struct tee_shm_pool *pool, struct tee_shm *shm)
 {
 	/* Unmap the shared memory from TEE */
 	amdtee_unmap_shmem(shm);
@@ -42,52 +46,25 @@ static void pool_op_free(struct tee_shm_pool_mgr *poolm, struct tee_shm *shm)
 	shm->kaddr = NULL;
 }
 
-static void pool_op_destroy_poolmgr(struct tee_shm_pool_mgr *poolm)
+static void pool_op_destroy_pool(struct tee_shm_pool *pool)
 {
-	kfree(poolm);
+	kfree(pool);
 }
 
-static const struct tee_shm_pool_mgr_ops pool_ops = {
+static const struct tee_shm_pool_ops pool_ops = {
 	.alloc = pool_op_alloc,
 	.free = pool_op_free,
-	.destroy_poolmgr = pool_op_destroy_poolmgr,
+	.destroy_pool = pool_op_destroy_pool,
 };
 
-static struct tee_shm_pool_mgr *pool_mem_mgr_alloc(void)
-{
-	struct tee_shm_pool_mgr *mgr = kzalloc(sizeof(*mgr), GFP_KERNEL);
-
-	if (!mgr)
-		return ERR_PTR(-ENOMEM);
-
-	mgr->ops = &pool_ops;
-
-	return mgr;
-}
-
 struct tee_shm_pool *amdtee_config_shm(void)
 {
-	struct tee_shm_pool_mgr *priv_mgr;
-	struct tee_shm_pool_mgr *dmabuf_mgr;
-	void *rc;
+	struct tee_shm_pool *pool = kzalloc(sizeof(*pool), GFP_KERNEL);
 
-	rc = pool_mem_mgr_alloc();
-	if (IS_ERR(rc))
-		return rc;
-	priv_mgr = rc;
+	if (!pool)
+		return ERR_PTR(-ENOMEM);
 
-	rc = pool_mem_mgr_alloc();
-	if (IS_ERR(rc)) {
-		tee_shm_pool_mgr_destroy(priv_mgr);
-		return rc;
-	}
-	dmabuf_mgr = rc;
+	pool->ops = &pool_ops;
 
-	rc = tee_shm_pool_alloc(priv_mgr, dmabuf_mgr);
-	if (IS_ERR(rc)) {
-		tee_shm_pool_mgr_destroy(priv_mgr);
-		tee_shm_pool_mgr_destroy(dmabuf_mgr);
-	}
-
-	return rc;
+	return pool;
 }

drivers/tee/optee/Kconfig

@@ -7,11 +7,3 @@ config OPTEE
 	help
 	  This implements the OP-TEE Trusted Execution Environment (TEE)
 	  driver.
-
-config OPTEE_SHM_NUM_PRIV_PAGES
-	int "Private Shared Memory Pages"
-	default 1
-	depends on OPTEE
-	help
-	  This sets the number of private shared memory pages to be
-	  used by OP-TEE TEE driver.

drivers/tee/optee/call.c

@@ -120,7 +120,7 @@ struct tee_shm *optee_get_msg_arg(struct tee_context *ctx, size_t num_params,
 	if (optee->rpc_arg_count)
 		sz += OPTEE_MSG_GET_ARG_SIZE(optee->rpc_arg_count);
 
-	shm = tee_shm_alloc(ctx, sz, TEE_SHM_MAPPED | TEE_SHM_PRIV);
+	shm = tee_shm_alloc_priv_buf(ctx, sz);
 	if (IS_ERR(shm))
 		return shm;
 

drivers/tee/optee/core.c

@@ -18,8 +18,8 @@
 #include <linux/workqueue.h>
 #include "optee_private.h"
 
-int optee_pool_op_alloc_helper(struct tee_shm_pool_mgr *poolm,
-			       struct tee_shm *shm, size_t size,
+int optee_pool_op_alloc_helper(struct tee_shm_pool *pool, struct tee_shm *shm,
+			       size_t size, size_t align,
 			       int (*shm_register)(struct tee_context *ctx,
 						   struct tee_shm *shm,
 						   struct page **pages,
@@ -30,6 +30,10 @@ int optee_pool_op_alloc_helper(struct tee_shm_pool_mgr *poolm,
 	struct page *page;
 	int rc = 0;
 
+	/*
+	 * Ignore alignment since this is already going to be page aligned
+	 * and there's no need for any larger alignment.
+	 */
 	page = alloc_pages(GFP_KERNEL | __GFP_ZERO, order);
 	if (!page)
 		return -ENOMEM;
@@ -51,7 +55,6 @@ int optee_pool_op_alloc_helper(struct tee_shm_pool_mgr *poolm,
 		for (i = 0; i < nr_pages; i++)
 			pages[i] = page + i;
 
-		shm->flags |= TEE_SHM_REGISTER;
 		rc = shm_register(shm->ctx, shm, pages, nr_pages,
 				  (unsigned long)shm->kaddr);
 		kfree(pages);
@@ -62,10 +65,20 @@ int optee_pool_op_alloc_helper(struct tee_shm_pool_mgr *poolm,
 	return 0;
 
 err:
-	__free_pages(page, order);
+	free_pages((unsigned long)shm->kaddr, order);
 	return rc;
 }
 
+void optee_pool_op_free_helper(struct tee_shm_pool *pool, struct tee_shm *shm,
+			       int (*shm_unregister)(struct tee_context *ctx,
+						     struct tee_shm *shm))
+{
+	if (shm_unregister)
+		shm_unregister(shm->ctx, shm);
+	free_pages((unsigned long)shm->kaddr, get_order(shm->size));
+	shm->kaddr = NULL;
+}
+
 static void optee_bus_scan(struct work_struct *work)
 {
 	WARN_ON(optee_enumerate_devices(PTA_CMD_GET_DEVICES_SUPP));

drivers/tee/optee/device.c

@@ -121,10 +121,9 @@ static int __optee_enumerate_devices(u32 func)
 	if (rc < 0 || !shm_size)
 		goto out_sess;
 
-	device_shm = tee_shm_alloc(ctx, shm_size,
-				   TEE_SHM_MAPPED | TEE_SHM_DMA_BUF);
+	device_shm = tee_shm_alloc_kernel_buf(ctx, shm_size);
 	if (IS_ERR(device_shm)) {
-		pr_err("tee_shm_alloc failed\n");
+		pr_err("tee_shm_alloc_kernel_buf failed\n");
 		rc = PTR_ERR(device_shm);
 		goto out_sess;
 	}