[PATCH v16 0/4] ARM: rk3288: Add PM Domain support

From: Caesar Wang
Date: Wed Aug 12 2015 - 00:44:45 EST

Add power domain drivers based on generic power domain for
Rockchip platform, and support RK3288 SoCs.

Verified on url =
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


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
c5f12a3 dt-bindings: add document of Rockchip power domain
7a834ba Merge branch 'for-linus' of
0be0171 HID: wacom: Report correct device resolution when using the
wireless adapater
2b9bea0 Merge tag 'mfd-fixes-4.2' of
016a9f5 Merge tag 'ntb-4.2-rc7' of git://github.com/jonmason/ntb
a3ca013 Merge branch 'for-linus' of

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


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