Add power domain drivers based on generic power domain for Rockchip platform, and support RK3288 SoCs. Verified on url = https://chromium.googlesource.com/chromiumos/third_party/kernel/+/v3.14 localhost / # cat /sys/kernel/debug/pm_genpd/pm_genpd_summary domain status slaves /device runtime status ---------------------------------------------------------------------- pd_video off /devices/ff9a0800.iommu suspended /devices/ff9a0000.video-codec suspended pd_vio on /devices/ff930300.iommu suspended /devices/ff940300.iommu suspended /devices/ff930000.vop suspended /devices/ff940000.vop suspended /devices/ff980000.hdmi unsupported /devices/rockchip-edp unsupported pd_hevc off pd_gpu off /devices/ffa30000.gpu suspended The following is the easy example. vopb: vop@ff930000 { compatible = "rockchip,rk3288-vop"; ... iommus = <&vopb_mmu>; power-domains = <&power RK3288_PD_VIO>; status = "disabled"; ... }; vopb_mmu: iommu@ff930300 { compatible = "rockchip,iommu"; ... interrupt-names = "vopb_mmu"; power-domains = <&power RK3288_PD_VIO>; #iommu-cells = <0>; status = "disabled"; ... }; vopl: vop@ff940000 { compatible = "rockchip,rk3288-vop"; reg = <0xff940000 0x19c>; ... iommus = <&vopl_mmu>; power-domains = <&power RK3288_PD_VIO>; status = "disabled"; ... }; vopl_mmu: iommu@ff940300 { compatible = "rockchip,iommu"; ... interrupt-names = "vopl_mmu"; power-domains = <&power RK3288_PD_VIO>; #iommu-cells = <0>; status = "disabled"; }; Others, we can verify this driver for the EDP. We can apply the following these patchs. 6967631 New [v2,1/8] drm: exynos/dp: fix code style 6967741 New [v2,2/8] drm: exynos/dp: convert to drm bridge mode 6967801 New [v2,3/8] drm: bridge: analogix_dp: split exynos dp driver to bridge dir 6967791 New [v2,4/8] drm: rockchip/dp: add rockchip platform dp driver 6968031 New [v2,5/8] drm: bridge/analogix_dp: add platform device type support 6968141 New [v2,6/8] drm: bridge: analogix_dp: add some rk3288 special registers setting 6967941 New [v2,7/8] drm: bridge: analogix_dp: try force hpd after plug in lookup failed 6967971 New [v2,8/8] drm: bridge/analogix_dp: expand the delay time for hpd detect There is a recent addition from Linus Walleij, called simple-mfd [a] that is supposed to get added real early for kernel 4.2 [a]: https://git.kernel.org/cgit/linux/kernel/git/linusw/linux-integrator.git/commit/?h=simple-mfd&id=fcf294c020ff7ee4e3b1e96159e4dc7a17ad59d1 Here is my branch, Tested by chromeos-3.14 and next-kernel. 2b82899 ARM: dts: add RK3288 power-domain node 69d0b5b soc: rockchip: power-domain: support power domain driver for RK3288 SoCs 66f8758 ARM: power-domain: rockchip: add all the domain type on RK3288 SoCs c5f12a3 dt-bindings: add document of Rockchip power domain 7a834ba Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 0be0171 HID: wacom: Report correct device resolution when using the wireless adapater 2b9bea0 Merge tag 'mfd-fixes-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd 016a9f5 Merge tag 'ntb-4.2-rc7' of git://github.com/jonmason/ntb a3ca013 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs ...... Caesar Wang (4): dt-bindings: add document of Rockchip power domain ARM: power-domain: rockchip: add all the domain type on RK3288 SoCs soc: rockchip: power-domain: Add power domain driver ARM: dts: add the support power-domain node on RK3288 SoCs .../bindings/soc/rockchip/power_domain.txt | 46 ++ arch/arm/boot/dts/rk3288.dtsi | 60 ++- drivers/soc/Kconfig | 1 + drivers/soc/Makefile | 1 + drivers/soc/rockchip/Kconfig | 13 + drivers/soc/rockchip/Makefile | 4 + drivers/soc/rockchip/pm_domains.c | 485 +++++++++++++++++++++ include/dt-bindings/power-domain/rk3288.h | 31 ++ 8 files changed, 640 insertions(+), 1 deletion(-) create mode 100644 Documentation/devicetree/bindings/soc/rockchip/power_domain.txt create mode 100644 drivers/soc/rockchip/Kconfig create mode 100644 drivers/soc/rockchip/Makefile create mode 100644 drivers/soc/rockchip/pm_domains.c create mode 100644 include/dt-bindings/power-domain/rk3288.h -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
