f4e833ba2a
When the root complex suspends it must send a PME_Turn_Off TLP. Implement this by asserting the "turnoff" reset. On imx7d this functionality is part of the System Reset Controller (SRC) and is exposed through the linux reset-controller subsystem. On imx6 equivalent bits are in the IOMUXC pinmux controller General Purpose Register (GPR) area which the imx6-pcie driver accesses directly. This is only for imx7d right now but it's deliberately implemented as an optional reset, ignoring the chip variant: * Older dtbs won't have this reset so it will be ignored. * Future chips might also expose this as a reset controller. For example imx8m (not yet supported) has the exact same PCIE_CTRL_APPS_TURNOFF bit in the same location. Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> [lorenzo.pieralisi@arm.com: updated commit log] Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Lucas Stach <l.stach@pengutronix.de> |
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| .. | ||
| Kconfig | ||
| Makefile | ||
| pci-dra7xx.c | ||
| pci-exynos.c | ||
| pci-imx6.c | ||
| pci-keystone-dw.c | ||
| pci-keystone.c | ||
| pci-keystone.h | ||
| pci-layerscape.c | ||
| pcie-armada8k.c | ||
| pcie-artpec6.c | ||
| pcie-designware-ep.c | ||
| pcie-designware-host.c | ||
| pcie-designware-plat.c | ||
| pcie-designware.c | ||
| pcie-designware.h | ||
| pcie-hisi.c | ||
| pcie-histb.c | ||
| pcie-kirin.c | ||
| pcie-qcom.c | ||
| pcie-spear13xx.c | ||