From 1f164bd5b7dd4a1903c274ca70bf1ab11684db99 Mon Sep 17 00:00:00 2001 From: zhangqing Date: Mon, 11 Jan 2016 02:36:40 -0800 Subject: dt-bindings: modify document of Rockchip power domains Modify binding documentation for the power domains found on Rockchip RK3368 SoCs. Signed-off-by: zhangqing Acked-by: Rob Herring Signed-off-by: Heiko Stuebner --- .../bindings/soc/rockchip/power_domain.txt | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'Documentation/devicetree/bindings/soc') diff --git a/Documentation/devicetree/bindings/soc/rockchip/power_domain.txt b/Documentation/devicetree/bindings/soc/rockchip/power_domain.txt index 112756e11802..13dc6a3fdb4a 100644 --- a/Documentation/devicetree/bindings/soc/rockchip/power_domain.txt +++ b/Documentation/devicetree/bindings/soc/rockchip/power_domain.txt @@ -6,6 +6,7 @@ powered up/down by software based on different application scenes to save power. Required properties for power domain controller: - compatible: Should be one of the following. "rockchip,rk3288-power-controller" - for RK3288 SoCs. + "rockchip,rk3368-power-controller" - for RK3368 SoCs. - #power-domain-cells: Number of cells in a power-domain specifier. Should be 1 for multiple PM domains. - #address-cells: Should be 1. @@ -14,6 +15,7 @@ Required properties for power domain controller: Required properties for power domain sub nodes: - reg: index of the power domain, should use macros in: "include/dt-bindings/power/rk3288-power.h" - for RK3288 type power domain. + "include/dt-bindings/power/rk3368-power.h" - for RK3368 type power domain. - clocks (optional): phandles to clocks which need to be enabled while power domain switches state. @@ -31,11 +33,24 @@ Example: }; }; + power: power-controller { + compatible = "rockchip,rk3368-power-controller"; + #power-domain-cells = <1>; + #address-cells = <1>; + #size-cells = <0>; + + pd_gpu_1 { + reg = ; + clocks = <&cru ACLK_GPU_CFG>; + }; + }; + Node of a device using power domains must have a power-domains property, containing a phandle to the power device node and an index specifying which power domain to use. The index should use macros in: "include/dt-bindings/power/rk3288-power.h" - for rk3288 type power domain. + "include/dt-bindings/power/rk3368-power.h" - for rk3368 type power domain. Example of the node using power domain: @@ -44,3 +59,9 @@ Example of the node using power domain: power-domains = <&power RK3288_PD_GPU>; /* ... */ }; + + node { + /* ... */ + power-domains = <&power RK3368_PD_GPU_1>; + /* ... */ + }; -- cgit v1.2.3