From e0c93980d293b6e6eb7483fd5d665f84e725b518 Mon Sep 17 00:00:00 2001 From: Andy Yan Date: Tue, 22 Apr 2025 15:04:41 +0800 Subject: [PATCH] dt-bindings: display: rockchip,inno-hdmi: Document GRF for RK3036 HDMI HDMI on RK3036 use GRF control the HSYNC/VSYNC polarity, but this part is missing when it first landing upstream. Document that it is mandatory for RK3036 HDMI. Signed-off-by: Andy Yan Reviewed-by: Krzysztof Kozlowski Signed-off-by: Heiko Stuebner Link: https://lore.kernel.org/r/20250422070455.432666-3-andyshrk@163.com --- .../bindings/display/rockchip/rockchip,inno-hdmi.yaml | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/Documentation/devicetree/bindings/display/rockchip/rockchip,inno-hdmi.yaml b/Documentation/devicetree/bindings/display/rockchip/rockchip,inno-hdmi.yaml index 9d1e7f894ea54..290376bec079a 100644 --- a/Documentation/devicetree/bindings/display/rockchip/rockchip,inno-hdmi.yaml +++ b/Documentation/devicetree/bindings/display/rockchip/rockchip,inno-hdmi.yaml @@ -56,6 +56,12 @@ properties: - port@0 - port@1 + rockchip,grf: + $ref: /schemas/types.yaml#/definitions/phandle + description: + Phandle to GRF used for control the polarity of hsync/vsync of rk3036 + HDMI. + required: - compatible - reg @@ -75,6 +81,8 @@ allOf: const: rockchip,rk3036-inno-hdmi then: + required: + - rockchip,grf properties: power-domains: false @@ -103,6 +111,7 @@ examples: clock-names = "pclk", "ref"; pinctrl-names = "default"; pinctrl-0 = <&hdmi_ctl>; + rockchip,grf = <&grf>; #sound-dai-cells = <0>; ports { -- 2.47.2