[PATCH v5 1/2] devicetree/bindings: display: Add document for rockchip RGB output

[Sandy Huang <hjc@rock-chips.com>]

This path add support rv1108 and px30 rgb output interface driver.

Signed-off-by: Sandy Huang <hjc@rock-chips.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1509522765-118759-1-git-send-email-hjc@rock-chips.com
---
 .../bindings/display/rockchip/rockchip-rgb.txt     | 70 ++++++++++++++++++++++
 1 file changed, 70 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/rockchip/rockchip-rgb.txt

diff --git a/Documentation/devicetree/bindings/display/rockchip/rockchip-rgb.txt b/Documentation/devicetree/bindings/display/rockchip/rockchip-rgb.txt
new file mode 100644
index 0000000..1f4909c
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/rockchip/rockchip-rgb.txt
@@ -0,0 +1,70 @@
+Rockchip RV1108 RGB interface
+================================
+
+Required properties:
+- compatible: matching the soc type:
+	- "rockchip,px30-rgb";
+	- "rockchip,rv1108-rgb";
+
+Optional properties:
+- pinctrl-names: should be a "lcdc" entry or a "default" entry.
+- pinctrl-0: pin control group to be used for this interface.
+
+The rgb has two video ports described by:
+	Documentation/devicetree/bindings/media/video-interfaces.txt
+Their connections are modeled using the OF graph bindings specified in
+	Documentation/devicetree/bindings/graph.txt.
+
+- video port 0 for the VOP input, the remote endpoint maybe vopb/vopl/vop
+- video port 1 for either a panel or subsequent encoder
+
+the panel described by:
+	Documentation/devicetree/bindings/display/panel/simple-panel.txt
+Panel other required properties:
+- ports for remote rgb output.
+
+Example:
+
+panel: panel {
+	compatible = "auo,b101ean01";
+	enable-gpios = <&gpio7 21 GPIO_ACTIVE_HIGH>;
+
+	ports {
+		panel_in_rgb: endpoint {
+			remote-endpoint = <&rgb_out_panel>;
+		};
+	};
+};
+
+For Rockchip RV1108:
+
+	rgb: rgb {
+		compatible = "rockchip,rv1108-rgb";
+		pinctrl-names = "lcdc";
+		pinctrl-0 = <&lcdc_ctl>;
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			rgb_in: port@0 {
+				reg = <0>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				rgb_in_vop: endpoint {
+					remote-endpoint = <&vop_out_rgb>;
+				};
+			};
+
+			rgb_out: port@1 {
+				reg = <1>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				rgb_out_panel: endpoint {
+					remote-endpoint = <&panel_in_rgb>;
+				};
+			};
+		};
+	};
-- 
2.7.4


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