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dt-bindings: power: add binding for rk3562 power domains

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Add binding documentation for the power domains
found on Rockchip RK3562 SoCs.

Signed-off-by: Finley Xiao <finley.xiao@rock-chips.com>
Change-Id: I755b753bb08aab5a9c2b1ee8784f762a8bdf368a
This commit is contained in:
Finley Xiao
2023-10-23 18:05:36 +08:00
parent 6971f2340a
commit 6966d650e6
1 changed files with 12 additions and 0 deletions
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12
Documentation/devicetree/bindings/soc/rockchip/power_domain.txt
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@@ -18,6 +18,7 @@ Required properties for power domain controller:
"rockchip,rk3366-power-controller" - for RK3366 SoCs.
"rockchip,rk3368-power-controller" - for RK3368 SoCs.
"rockchip,rk3399-power-controller" - for RK3399 SoCs.
"rockchip,rk3562-power-controller" - for RK3562 SoCs.
"rockchip,rk3568-power-controller" - for RK3568 SoCs.
- #power-domain-cells: Number of cells in a power-domain specifier.
Should be 1 for multiple PM domains.
@@ -39,6 +40,7 @@ Required properties for power domain sub nodes:
"include/dt-bindings/power/rk3366-power.h" - for RK3366 type power domain.
"include/dt-bindings/power/rk3368-power.h" - for RK3368 type power domain.
"include/dt-bindings/power/rk3399-power.h" - for RK3399 type power domain.
"include/dt-bindings/power/rk3562-power.h" - for RK3562 type power domain.
"include/dt-bindings/power/rk3568-power.h" - for RK3568 type power domain.
- clocks (optional): phandles to clocks which need to be enabled while power domain
switches state.
@@ -50,6 +52,14 @@ Qos Example:
qos_gpu: qos_gpu@ffaf0000 {
compatible ="syscon";
reg = <0x0 0xffaf0000 0x0 0x20>;
priority-init = <0x202>;
};
Shaping Example:
shaping_gpu: shaping@fee30088 {
compatible = "syscon";
reg = <0x0 0xfee30088 0x0 0x4>;
shaping-init = <0xff>;
};
Example:
@@ -64,6 +74,7 @@ Example:
reg = <RK3288_PD_GPU>;
clocks = <&cru ACLK_GPU>;
pm_qos = <&qos_gpu>;
pm_shaping = <&shaping_gpu>;
};
};
@@ -122,6 +133,7 @@ The index should use macros in:
"include/dt-bindings/power/rk3366-power.h" - for rk3366 type power domain.
"include/dt-bindings/power/rk3368-power.h" - for rk3368 type power domain.
"include/dt-bindings/power/rk3399-power.h" - for rk3399 type power domain.
"include/dt-bindings/power/rk3562-power.h" - for rk3562 type power domain.
"include/dt-bindings/power/rk3568-power.h" - for rk3568 type power domain.
Example of the node using power domain: