UPSTREAM: dt-bindings: modify document of Rockchip power domains

[firefly-linux-kernel-4.4.55.git] / Documentation / devicetree / bindings / soc / rockchip / power_domain.txt

diff --git a/Documentation/devicetree/bindings/soc/rockchip/power_domain.txt b/Documentation/devicetree/bindings/soc/rockchip/power_domain.txt
index 41a252131cc6fb05b6c2e3bc38710c4b95be60dc..89b6376a4e958189d0299e8f09167ac18155734b 100644 (file)
--- a/Documentation/devicetree/bindings/soc/rockchip/power_domain.txt
+++ b/Documentation/devicetree/bindings/soc/rockchip/power_domain.txt
@@ -22,6 +22,15 @@ Required properties for power domain sub nodes:
        "include/dt-bindings/power/rk3399-power.h" - for RK3399 type power domain.
 - clocks (optional): phandles to clocks which need to be enabled while power domain
        switches state.
+- pm_qos (optional): phandles to qos blocks which need to be saved and restored
+       while power domain switches state.
+
+Qos Example:
+
+       qos_gpu: qos_gpu@ffaf0000 {
+               compatible ="syscon";
+               reg = <0x0 0xffaf0000 0x0 0x20>;
+       };
 
 Example:
 
@@ -34,6 +43,7 @@ Example:
                pd_gpu {
                        reg = <RK3288_PD_GPU>;
                        clocks = <&cru ACLK_GPU>;
+                       pm_qos = <&qos_gpu>;
                };
        };