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rockchip-dev: bump to 5.2, adjust pathes, add gpio_mem driver
Signed-off-by: Igor Pecovnik <igor.pecovnik@gmail.com>
This commit is contained in:
Igor Pecovnik
parent
29472c52b3
commit
fc17154500
9 changed files with 787 additions and 125 deletions
File diff suppressed because it is too large
Load diff
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@ -39,7 +39,7 @@ case $BRANCH in
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dev)
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KERNELSOURCE=$MAINLINE_KERNEL_SOURCE
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KERNELBRANCH='branch:linux-5.1.y'
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KERNELBRANCH='branch:linux-5.2.y'
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KERNELDIR=$MAINLINE_KERNEL_DIR
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KERNEL_USE_GCC='> 7.0'
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@ -1,61 +0,0 @@
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From 771bcfe1735e42650b763e52a042a9fd98b2fa5b Mon Sep 17 00:00:00 2001
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From: Myy Miouyouyou <myy@miouyouyou.fr>
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Date: Thu, 19 Oct 2017 21:20:43 +0200
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Subject: [PATCH 09/28] ARM: DTSI: rk3288.dtsi: Missing GRF handles
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Add missing GRF handles.
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This patch is taken from the patches provided by the ARMbian team.
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Signed-off-by: Myy Miouyouyou <myy@miouyouyou.fr>
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---
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arch/arm/boot/dts/rk3288.dtsi | 5 +++++
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1 file changed, 5 insertions(+)
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diff --git a/arch/arm/boot/dts/rk3288.dtsi b/arch/arm/boot/dts/rk3288.dtsi
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index 356ed1e6..5b789528 100644
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--- a/arch/arm/boot/dts/rk3288.dtsi
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+++ b/arch/arm/boot/dts/rk3288.dtsi
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@@ -547,6 +547,7 @@
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pinctrl-2 = <&otp_gpio>;
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#thermal-sensor-cells = <1>;
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rockchip,hw-tshut-temp = <95000>;
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+ rockchip,grf = <&grf>;
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status = "disabled";
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};
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@@ -655,6 +656,7 @@
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pinctrl-0 = <&pwm0_pin>;
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clocks = <&cru PCLK_PWM>;
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clock-names = "pwm";
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+ rockchip,grf = <&grf>;
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status = "disabled";
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};
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@@ -666,6 +668,7 @@
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pinctrl-0 = <&pwm1_pin>;
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clocks = <&cru PCLK_PWM>;
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clock-names = "pwm";
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+ rockchip,grf = <&grf>;
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status = "disabled";
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};
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@@ -677,6 +680,7 @@
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pinctrl-0 = <&pwm2_pin>;
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clocks = <&cru PCLK_PWM>;
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clock-names = "pwm";
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+ rockchip,grf = <&grf>;
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status = "disabled";
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};
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@@ -688,6 +692,7 @@
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pinctrl-0 = <&pwm3_pin>;
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clocks = <&cru PCLK_PWM>;
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clock-names = "pwm";
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+ rockchip,grf = <&grf>;
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status = "disabled";
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};
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--
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2.11.0
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@ -40,8 +40,8 @@ index 13b38cb89..0d8b99b6b 100644
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+PNAME_ED(mux_pll_src_cgn_pll_nonvop_p) = { "cpll", "gpll", "npll" };
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+PNAME_ED(mux_pll_src_cgn_pll_vop0_p) = { "cpll", "gpll", "npll" };
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+PNAME_ED(mux_pll_src_cgn_pll_vop1_p) = { "cpll", "gpll", "npll" };
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PNAME(mux_pll_src_cpll_gpll_usb480m_p) = { "cpll", "gpll", "usbphy480m_src" };
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-PNAME(mux_pll_src_cpll_gll_usb_npll_p) = { "cpll", "gpll", "usbphy480m_src", "npll" };
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PNAME(mux_pll_src_cpll_gpll_usb480m_p) = { "cpll", "gpll", "unstable:usbphy480m_src" };
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-PNAME(mux_pll_src_cpll_gll_usb_npll_p) = { "cpll", "gpll", "unstable:usbphy480m_src", "npll" };
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+PNAME_ED(mux_pll_src_cpll_gll_usb_npll_p) = { "cpll", "gpll", "usbphy480m_src", "npll" };
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PNAME(mux_mmc_src_p) = { "cpll", "gpll", "xin24m", "xin24m" };
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395
patch/kernel/rockchip-dev/261_gpiomem_driver.patch
Normal file
395
patch/kernel/rockchip-dev/261_gpiomem_driver.patch
Normal file
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@ -0,0 +1,395 @@
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diff --git a/arch/arm/boot/dts/rk3288-tinker.dtsi b/arch/arm/boot/dts/rk3288-tinker.dtsi
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index e5b7ef1a5..f88c913ff 100644
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--- a/arch/arm/boot/dts/rk3288-tinker.dtsi
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+++ b/arch/arm/boot/dts/rk3288-tinker.dtsi
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@@ -544,3 +544,6 @@
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&wdt {
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status = "okay";
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};
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+&gpiomem {
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+ status = "okay";
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+};
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diff --git a/arch/arm/boot/dts/rk3288.dtsi b/arch/arm/boot/dts/rk3288.dtsi
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index f3ca55496..14bbcb192 100644
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--- a/arch/arm/boot/dts/rk3288.dtsi
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+++ b/arch/arm/boot/dts/rk3288.dtsi
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@@ -1418,6 +1418,12 @@
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interrupts = <GIC_PPI 9 0xf04>;
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};
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+ gpiomem: rk3288-gpiomem@ff750000 {
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+ compatible = "rockchip,rk3288-gpiomem";
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+ reg = <0x0 0xff750000 0x0 0x1000>;
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+ status = "disabled";
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+ };
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+
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pinctrl: pinctrl {
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compatible = "rockchip,rk3288-pinctrl";
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rockchip,grf = <&grf>;
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diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
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index 3143db5..9c18b74 100644
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--- a/drivers/char/Kconfig
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+++ b/drivers/char/Kconfig
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@@ -5,6 +5,7 @@
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menu "Character devices"
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source "drivers/tty/Kconfig"
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+source "drivers/char/rockchip/Kconfig"
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config DEVMEM
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bool "/dev/mem virtual device support"
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diff --git a/drivers/char/Makefile b/drivers/char/Makefile
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index d8a7579..290cb32 100644
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--- a/drivers/char/Makefile
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+++ b/drivers/char/Makefile
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@@ -51,6 +51,8 @@ obj-$(CONFIG_PS3_FLASH) += ps3flash.o
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obj-$(CONFIG_JS_RTC) += js-rtc.o
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js-rtc-y = rtc.o
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+obj-$(CONFIG_ARCH_ROCKCHIP) += rockchip/
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+
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obj-$(CONFIG_XILLYBUS) += xillybus/
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obj-$(CONFIG_POWERNV_OP_PANEL) += powernv-op-panel.o
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obj-$(CONFIG_ADI) += adi.o
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diff --git a/drivers/char/rockchip/Kconfig b/drivers/char/rockchip/Kconfig
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new file mode 100644
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index 0000000..6e97486
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--- /dev/null
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+++ b/drivers/char/rockchip/Kconfig
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@@ -0,0 +1,16 @@
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+#
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+# Broadcom char driver config
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+#
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+
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+menuconfig RK_CHAR_DRIVERS
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+ bool "Rockchip Char Drivers"
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+ help
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+ Rockchip's char drivers
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+
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+config RK3288_DEVGPIOMEM
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+ tristate "/dev/gpiomem rootless GPIO access via mmap() on the RK3288"
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+ default y
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+ help
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+ Provides users with root-free access to the GPIO registers
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+ on the 3288. Calling mmap(/dev/gpiomem) will map the GPIO
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+ register page to the user's pointer.
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\ No newline at end of file
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diff --git a/drivers/char/rockchip/Makefile b/drivers/char/rockchip/Makefile
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new file mode 100644
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index 0000000..2287ec2
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--- /dev/null
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+++ b/drivers/char/rockchip/Makefile
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@@ -0,0 +1 @@
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+obj-$(CONFIG_RK3288_DEVGPIOMEM)+= rk3288-gpiomem.o
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\ No newline at end of file
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diff --git a/drivers/char/rockchip/rk3288-gpiomem.c b/drivers/char/rockchip/rk3288-gpiomem.c
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new file mode 100644
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index 0000000..984471c
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--- /dev/null
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+++ b/drivers/char/rockchip/rk3288-gpiomem.c
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@@ -0,0 +1,303 @@
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+/**
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+ * GPIO memory device driver
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+ *
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+ * Creates a chardev /dev/gpiomem which will provide user access to
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+ * the rk3288's GPIO registers when it is mmap()'d.
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+ * No longer need root for user GPIO access, but without relaxing permissions
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+ * on /dev/mem.
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+ *
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+ * Written by Luke Wren <luke@raspberrypi.org>
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+ * Copyright (c) 2015, Raspberry Pi (Trading) Ltd.
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+ *
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+ * Redistribution and use in source and binary forms, with or without
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+ * modification, are permitted provided that the following conditions
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+ * are met:
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+ * 1. Redistributions of source code must retain the above copyright
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+ * notice, this list of conditions, and the following disclaimer,
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+ * without modification.
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+ * 2. Redistributions in binary form must reproduce the above copyright
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+ * notice, this list of conditions and the following disclaimer in the
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+ * documentation and/or other materials provided with the distribution.
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+ * 3. The names of the above-listed copyright holders may not be used
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+ * to endorse or promote products derived from this software without
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+ * specific prior written permission.
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+ *
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+ * ALTERNATIVELY, this software may be distributed under the terms of the
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+ * GNU General Public License ("GPL") version 2, as published by the Free
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+ * Software Foundation.
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+ *
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+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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+ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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+ */
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+
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+#include <linux/kernel.h>
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+#include <linux/module.h>
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+#include <linux/of.h>
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+#include <linux/platform_device.h>
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+#include <linux/mm.h>
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+#include <linux/slab.h>
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+#include <linux/cdev.h>
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+#include <linux/pagemap.h>
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+#include <linux/io.h>
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+
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+#define DEVICE_NAME "rk3288-gpiomem"
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+#define DRIVER_NAME "gpiomem-rk3288"
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+#define DEVICE_MINOR 0
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+
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+struct rk3288_gpiomem_instance {
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+ unsigned long gpio_regs_phys;
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+ struct device *dev;
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+};
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+
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+static struct cdev rk3288_gpiomem_cdev;
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+static dev_t rk3288_gpiomem_devid;
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+static struct class *rk3288_gpiomem_class;
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+static struct device *rk3288_gpiomem_dev;
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+static struct rk3288_gpiomem_instance *inst;
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+
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+
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+/****************************************************************************
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+*
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+* GPIO mem chardev file ops
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+*
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+***************************************************************************/
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+
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+static int rk3288_gpiomem_open(struct inode *inode, struct file *file)
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+{
|
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+ int dev = iminor(inode);
|
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+ int ret = 0;
|
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+
|
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+ if (dev != DEVICE_MINOR) {
|
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+ dev_err(inst->dev, "Unknown minor device: %d", dev);
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+ ret = -ENXIO;
|
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+ }
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+ return ret;
|
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+}
|
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+
|
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+static int rk3288_gpiomem_release(struct inode *inode, struct file *file)
|
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+{
|
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+ int dev = iminor(inode);
|
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+ int ret = 0;
|
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+
|
||||
+ if (dev != DEVICE_MINOR) {
|
||||
+ dev_err(inst->dev, "Unknown minor device %d", dev);
|
||||
+ ret = -ENXIO;
|
||||
+ }
|
||||
+ return ret;
|
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+}
|
||||
+
|
||||
+static const struct vm_operations_struct rk3288_gpiomem_vm_ops = {
|
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+#ifdef CONFIG_HAVE_IOREMAP_PROT
|
||||
+ .access = generic_access_phys
|
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+#endif
|
||||
+};
|
||||
+static int address_is_allowed(unsigned long pfn, unsigned long size)
|
||||
+{
|
||||
+ unsigned long address = pfn << PAGE_SHIFT;
|
||||
+
|
||||
+ dev_info(inst->dev, "address_is_allowed.pfn: 0x%08lx", address);
|
||||
+
|
||||
+ switch(address) {
|
||||
+
|
||||
+ case 0xff750000:
|
||||
+ case 0xff760000:
|
||||
+ case 0xff780000:
|
||||
+ case 0xff790000:
|
||||
+ case 0xff7a0000:
|
||||
+ case 0xff7b0000:
|
||||
+ case 0xff7c0000:
|
||||
+ case 0xff7d0000:
|
||||
+ case 0xff7e0000:
|
||||
+ case 0xff7f0000:
|
||||
+ case 0xff7f2000:
|
||||
+ case 0xff770000:
|
||||
+ case 0xff730000:
|
||||
+ case 0xff680000:
|
||||
+ dev_info(inst->dev, "address_is_allowed.return 1");
|
||||
+ return 1;
|
||||
+ break;
|
||||
+ default :
|
||||
+ dev_info(inst->dev, "address_is_allowed.return 0");
|
||||
+ return 0;
|
||||
+ }
|
||||
+}
|
||||
+
|
||||
+static int rk3288_gpiomem_mmap(struct file *file, struct vm_area_struct *vma)
|
||||
+{
|
||||
+
|
||||
+ size_t size;
|
||||
+
|
||||
+ size = vma->vm_end - vma->vm_start;
|
||||
+
|
||||
+
|
||||
+ if (!address_is_allowed(vma->vm_pgoff, size))
|
||||
+ return -EPERM;
|
||||
+
|
||||
+ vma->vm_page_prot = phys_mem_access_prot(file, vma->vm_pgoff,
|
||||
+ size,
|
||||
+ vma->vm_page_prot);
|
||||
+
|
||||
+ vma->vm_ops = &rk3288_gpiomem_vm_ops;
|
||||
+
|
||||
+ /* Remap-pfn-range will mark the range VM_IO */
|
||||
+ if (remap_pfn_range(vma,
|
||||
+ vma->vm_start,
|
||||
+ vma->vm_pgoff,
|
||||
+ size,
|
||||
+ vma->vm_page_prot)) {
|
||||
+ return -EAGAIN;
|
||||
+ }
|
||||
+
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+static const struct file_operations
|
||||
+rk3288_gpiomem_fops = {
|
||||
+ .owner = THIS_MODULE,
|
||||
+ .open = rk3288_gpiomem_open,
|
||||
+ .release = rk3288_gpiomem_release,
|
||||
+ .mmap = rk3288_gpiomem_mmap,
|
||||
+};
|
||||
+
|
||||
+static int rk3288_gpiomem_dev_uevent(struct device *dev, struct kobj_uevent_env *env)
|
||||
+{
|
||||
+ add_uevent_var(env, "DEVMODE=%#o", 0666);
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+ /****************************************************************************
|
||||
+*
|
||||
+* Probe and remove functions
|
||||
+*
|
||||
+***************************************************************************/
|
||||
+
|
||||
+
|
||||
+static int rk3288_gpiomem_probe(struct platform_device *pdev)
|
||||
+{
|
||||
+ int err;
|
||||
+ void *ptr_err;
|
||||
+ struct device *dev = &pdev->dev;
|
||||
+ struct resource *ioresource;
|
||||
+
|
||||
+ /* Allocate buffers and instance data */
|
||||
+
|
||||
+ inst = kzalloc(sizeof(struct rk3288_gpiomem_instance), GFP_KERNEL);
|
||||
+
|
||||
+ if (!inst) {
|
||||
+ err = -ENOMEM;
|
||||
+ goto failed_inst_alloc;
|
||||
+ }
|
||||
+
|
||||
+ inst->dev = dev;
|
||||
+
|
||||
+ ioresource = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
||||
+ if (ioresource) {
|
||||
+ inst->gpio_regs_phys = ioresource->start;
|
||||
+ } else {
|
||||
+ dev_err(inst->dev, "failed to get IO resource");
|
||||
+ err = -ENOENT;
|
||||
+ goto failed_get_resource;
|
||||
+ }
|
||||
+
|
||||
+ /* Create character device entries */
|
||||
+
|
||||
+ err = alloc_chrdev_region(&rk3288_gpiomem_devid,
|
||||
+ DEVICE_MINOR, 1, DEVICE_NAME);
|
||||
+ if (err != 0) {
|
||||
+ dev_err(inst->dev, "unable to allocate device number");
|
||||
+ goto failed_alloc_chrdev;
|
||||
+ }
|
||||
+ cdev_init(&rk3288_gpiomem_cdev, &rk3288_gpiomem_fops);
|
||||
+ rk3288_gpiomem_cdev.owner = THIS_MODULE;
|
||||
+ err = cdev_add(&rk3288_gpiomem_cdev, rk3288_gpiomem_devid, 1);
|
||||
+ if (err != 0) {
|
||||
+ dev_err(inst->dev, "unable to register device");
|
||||
+ goto failed_cdev_add;
|
||||
+ }
|
||||
+
|
||||
+ /* Create sysfs entries */
|
||||
+
|
||||
+ rk3288_gpiomem_class = class_create(THIS_MODULE, DEVICE_NAME);
|
||||
+ ptr_err = rk3288_gpiomem_class;
|
||||
+ if (IS_ERR(ptr_err))
|
||||
+ goto failed_class_create;
|
||||
+ rk3288_gpiomem_class->dev_uevent = rk3288_gpiomem_dev_uevent;
|
||||
+ rk3288_gpiomem_dev = device_create(rk3288_gpiomem_class, NULL,
|
||||
+ rk3288_gpiomem_devid, NULL,
|
||||
+ "gpiomem");
|
||||
+ ptr_err = rk3288_gpiomem_dev;
|
||||
+ if (IS_ERR(ptr_err))
|
||||
+ goto failed_device_create;
|
||||
+
|
||||
+ dev_info(inst->dev, "Initialised: Registers at 0x%08lx",
|
||||
+ inst->gpio_regs_phys);
|
||||
+
|
||||
+ return 0;
|
||||
+
|
||||
+failed_device_create:
|
||||
+ class_destroy(rk3288_gpiomem_class);
|
||||
+failed_class_create:
|
||||
+ cdev_del(&rk3288_gpiomem_cdev);
|
||||
+ err = PTR_ERR(ptr_err);
|
||||
+failed_cdev_add:
|
||||
+ unregister_chrdev_region(rk3288_gpiomem_devid, 1);
|
||||
+failed_alloc_chrdev:
|
||||
+failed_get_resource:
|
||||
+ kfree(inst);
|
||||
+failed_inst_alloc:
|
||||
+ dev_err(inst->dev, "could not load rk3288_gpiomem");
|
||||
+ return err;
|
||||
+}
|
||||
+
|
||||
+static int rk3288_gpiomem_remove(struct platform_device *pdev)
|
||||
+{
|
||||
+ struct device *dev = inst->dev;
|
||||
+
|
||||
+ kfree(inst);
|
||||
+ device_destroy(rk3288_gpiomem_class, rk3288_gpiomem_devid);
|
||||
+ class_destroy(rk3288_gpiomem_class);
|
||||
+ cdev_del(&rk3288_gpiomem_cdev);
|
||||
+ unregister_chrdev_region(rk3288_gpiomem_devid, 1);
|
||||
+
|
||||
+ dev_info(dev, "GPIO mem driver removed - OK");
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+ /****************************************************************************
|
||||
+*
|
||||
+* Register the driver with device tree
|
||||
+*
|
||||
+***************************************************************************/
|
||||
+
|
||||
+static const struct of_device_id rk3288_gpiomem_of_match[] = {
|
||||
+ {.compatible = "rockchip,rk3288-gpiomem",},
|
||||
+ { /* sentinel */ },
|
||||
+};
|
||||
+
|
||||
+MODULE_DEVICE_TABLE(of, rk3288_gpiomem_of_match);
|
||||
+
|
||||
+static struct platform_driver rk3288_gpiomem_driver = {
|
||||
+ .probe = rk3288_gpiomem_probe,
|
||||
+ .remove = rk3288_gpiomem_remove,
|
||||
+ .driver = {
|
||||
+ .name = DRIVER_NAME,
|
||||
+ .owner = THIS_MODULE,
|
||||
+ .of_match_table = rk3288_gpiomem_of_match,
|
||||
+ },
|
||||
+};
|
||||
+
|
||||
+module_platform_driver(rk3288_gpiomem_driver);
|
||||
+
|
||||
+MODULE_ALIAS("platform:gpiomem-rk3288");
|
||||
+MODULE_LICENSE("GPL");
|
||||
+MODULE_DESCRIPTION("gpiomem driver for accessing GPIO from userspace");
|
||||
+MODULE_AUTHOR("Luke Wren <luke@raspberrypi.org>");
|
||||
\ No newline at end of file
|
||||
|
|
@ -1,8 +1,8 @@
|
|||
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
|
||||
index bf5cd17e2..cb02b3aa5 100644
|
||||
index a98dee2ae..d3cef7033 100644
|
||||
--- a/arch/arm/boot/dts/Makefile
|
||||
+++ b/arch/arm/boot/dts/Makefile
|
||||
@@ -906,13 +906,6 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += \
|
||||
@@ -916,15 +916,7 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += \
|
||||
rk3288-rock2-square.dtb \
|
||||
rk3288-tinker.dtb \
|
||||
rk3288-tinker-s.dtb \
|
||||
|
|
@ -10,9 +10,11 @@ index bf5cd17e2..cb02b3aa5 100644
|
|||
- rk3288-veyron-jaq.dtb \
|
||||
- rk3288-veyron-jerry.dtb \
|
||||
- rk3288-veyron-mickey.dtb \
|
||||
- rk3288-veyron-mighty.dtb \
|
||||
- rk3288-veyron-minnie.dtb \
|
||||
- rk3288-veyron-pinky.dtb \
|
||||
- rk3288-veyron-speedy.dtb \
|
||||
rk3288-vyasa.dtb
|
||||
dtb-$(CONFIG_ARCH_S3C24XX) += \
|
||||
s3c2416-smdk2416.dtb
|
||||
dtb-$(CONFIG_ARCH_S3C64XX) += \
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue