This small series addresses a couple of runtime PM issues I've spotted while running 4.18 on a Chromebook Plus (kevin, rk3399) platform, and specifically doing kexec.
In order to avoid making a complete mess of the IOMMU code, Heiko has requested that all RK platforms would select CONFIG_PM, which simplifies a lot of things. I've kept 32 and 64bit patches separate, but feel free to squash them into on if that's more convenient. Note that even with these patches, kexec is still fairly broken on rk3399, as the VOP is never turned off (see [1] for a fix). [1] https://www.spinics.net/lists/arm-kernel/msg670229.html * From v1: - Collected RBs from Heiko - Added two patches forcing CONFIG_PM on all Rockchip platforms at Heiko's request, following the example set by Tegra platforms. Marc Zyngier (4): ARM: rockchip: Force CONFIG_PM on Rockchip systems arm64: rockchip: Force CONFIG_PM on Rockchip systems iommu/rockchip: Handle errors returned from PM framework iommu/rockchip: Move irq request past pm_runtime_enable arch/arm/mach-rockchip/Kconfig | 1 + arch/arm64/Kconfig.platforms | 1 + drivers/iommu/rockchip-iommu.c | 45 +++++++++++++++++++++------------- 3 files changed, 30 insertions(+), 17 deletions(-) -- 2.18.0 _______________________________________________ iommu mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/iommu
