diff options
author | zhangqing <zhangqing@rock-chips.com> | 2016-01-11 13:36:40 +0300 |
---|---|---|
committer | Heiko Stuebner <heiko@sntech.de> | 2016-01-25 01:42:51 +0300 |
commit | 1f164bd5b7dd4a1903c274ca70bf1ab11684db99 (patch) | |
tree | 6ee5ff712be3bfbe3e5aa2a6f63d783e807014c5 /Documentation/devicetree/bindings/soc | |
parent | 92e963f50fc74041b5e9e744c330dca48e04f08d (diff) | |
download | linux-1f164bd5b7dd4a1903c274ca70bf1ab11684db99.tar.xz |
dt-bindings: modify document of Rockchip power domains
Modify binding documentation for the power domains
found on Rockchip RK3368 SoCs.
Signed-off-by: zhangqing <zhangqing@rock-chips.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Diffstat (limited to 'Documentation/devicetree/bindings/soc')
-rw-r--r-- | Documentation/devicetree/bindings/soc/rockchip/power_domain.txt | 21 |
1 files changed, 21 insertions, 0 deletions
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 = <RK3368_PD_GPU_1>; + 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>; + /* ... */ + }; |