From: Andy Yan <andy....@rock-chips.com>
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 <andy....@rock-chips.com>
---
(no changes since v2)
Changes in v2:
- First included in v2
.../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 {
--
2.43.0
