Richard Zhu 75cb8d20c1 PCI: imx: Enable MSI from downstream components ... The MSI Enable bit in the MSI Capability (PCIe r4.0, sec 7.7.1.2) controls whether a Function can request service using MSI. i.MX6 Root Ports implement the MSI Capability and may use MSI to request service for events like PME, hotplug, AER, etc. In addition, on i.MX6, the MSI Enable bit controls delivery of MSI interrupts from components below the Root Port. Prior to f3fdfc4ac3 ("PCI: Remove host driver Kconfig selection of CONFIG_PCIEPORTBUS"), enabling CONFIG_PCI_IMX6 automatically also enabled CONFIG_PCIEPORTBUS, and when portdrv claimed the Root Ports, it set the MSI Enable bit so it could use PME, hotplug, AER, etc. As a side effect, that also enabled delivery of MSI interrupts from downstream components. The imx6q-pcie driver itself does not depend on portdrv, so set MSI Enable in imx6q-pcie so MSI from downstream components works even if nobody uses MSI for the Root Port events. Fixes: f3fdfc4ac3 ("PCI: Remove host driver Kconfig selection of CONFIG_PCIEPORTBUS") Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Tested-by: Sven Van Asbroeck <TheSven73@googlemail.com> Tested-by: Trent Piepho <tpiepho@impinj.com> Reviewed-by: Lucas Stach <l.stach@pengutronix.de> Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>		2019-01-01 19:16:48 -06:00
..
dwc	PCI: imx: Enable MSI from downstream components	2019-01-01 19:16:48 -06:00
Kconfig	Merge branch 'remotes/lorenzo/pci/mediatek'	2018-10-20 11:45:53 -05:00
Makefile	PCI: mobiveil: Add Kconfig/Makefile entries	2018-07-30 14:30:16 +01:00
pci-aardvark.c	PCI: aardvark: Implement emulated root PCI bridge config space	2018-10-18 17:51:41 +01:00
pci-ftpci100.c	PCI: faraday: Fix I/O space page leak	2018-07-18 17:01:14 -05:00
pci-host-common.c	PCI: Remove unnecessary check of device_type == pci	2018-09-25 09:40:03 +01:00
pci-host-generic.c
pci-hyperv.c	PCI: hv: Fix return value check in hv_pci_assign_slots()	2018-09-21 19:13:22 -07:00
pci-mvebu.c	pci-v4.20-changes	2018-10-25 06:50:48 -07:00
pci-rcar-gen2.c
pci-tegra.c
pci-thunder-ecam.c
pci-thunder-pem.c
pci-v3-semi.c	PCI: v3-semi: Fix I/O space page leak	2018-07-18 17:02:13 -05:00
pci-versatile.c	PCI: versatile: Fix I/O space page leak	2018-07-18 17:00:11 -05:00
pci-xgene-msi.c
pci-xgene.c	PCI: xgene: Fix I/O space page leak	2018-07-18 16:59:40 -05:00
pcie-altera-msi.c
pcie-altera.c
pcie-cadence-ep.c	PCI: cadence: Write MSI data with 32bits	2018-10-12 12:09:29 +01:00
pcie-cadence-host.c	PCI: Remove unnecessary check of device_type == pci	2018-09-25 09:40:03 +01:00
pcie-cadence.c	pci-v4.20-changes	2018-10-25 06:50:48 -07:00
pcie-cadence.h	PCI: cadence: Add Power Management ops for host and EP	2018-07-12 12:44:14 +01:00
pcie-iproc-bcma.c
pcie-iproc-msi.c
pcie-iproc-platform.c
pcie-iproc.c	PCI: iproc: Remove PAXC slot check to allow VF support	2018-09-18 10:13:04 +01:00
pcie-iproc.h	PCI: iproc: Reject unconfigured physical functions from PAXC	2018-07-13 11:56:55 +01:00
pcie-mediatek.c	PCI: mediatek: Add loadable kernel module support	2018-10-17 15:37:29 +01:00
pcie-mobiveil.c	PCI: Remove unnecessary check of device_type == pci	2018-09-25 09:40:03 +01:00
pcie-rcar.c	PCI: rcar: Clean up PHY init on failure	2018-06-29 13:48:54 -05:00
pcie-rockchip-ep.c	PCI: Update xxx_pcie_ep_raise_irq() and pci_epc_raise_irq() signatures	2018-07-19 11:34:42 +01:00
pcie-rockchip-host.c
pcie-rockchip.c
pcie-rockchip.h
pcie-tango.c
pcie-xilinx-nwl.c	PCI: Remove unnecessary check of device_type == pci	2018-09-25 09:40:03 +01:00
pcie-xilinx.c	PCI: Remove unnecessary check of device_type == pci	2018-09-25 09:40:03 +01:00
vmd.c	pci-v4.20-changes	2018-10-25 06:50:48 -07:00