From 6772462b4d569c25ae37abf6b51757ba23b5f173 Mon Sep 17 00:00:00 2001 From: Elaine Zhang Date: Thu, 14 Apr 2016 14:20:19 +0800 Subject: [PATCH] dt-bindings: modify document of Rockchip power domains Rockchip Socs contain quality of service (qos) blocks managing priority, bandwidth, etc of the connection of each domain to the interconnect. These blocks loose state when their domain gets disabled and therefore need to be saved when disabling and restored when enabling a power-domain. These qos blocks also are similar over all currently available Rockchip SoCs. Signed-off-by: Elaine Zhang Signed-off-by: Heiko Stuebner --- .../devicetree/bindings/soc/rockchip/power_domain.txt | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/Documentation/devicetree/bindings/soc/rockchip/power_domain.txt b/Documentation/devicetree/bindings/soc/rockchip/power_domain.txt index 98085c888d65e..f909ce06afc46 100644 --- a/Documentation/devicetree/bindings/soc/rockchip/power_domain.txt +++ b/Documentation/devicetree/bindings/soc/rockchip/power_domain.txt @@ -20,6 +20,15 @@ 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: @@ -32,6 +41,7 @@ Example: pd_gpu { reg = ; clocks = <&cru ACLK_GPU>; + pm_qos = <&qos_gpu>; }; }; -- 2.39.5