[RFC 1/2] Dcumentation: bridge: Add documentation for ps8640 DT properties

[CK Hu <ck.hu-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>]

From: Jitao Shi <jitao.shi-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>

Add documentation for DT properties supported by ps8640
DSI-eDP converter.

Signed-off-by: Jitao Shi <jitao.shi-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
---
 .../devicetree/bindings/video/bridge/ps8640.txt    |   48 ++++++++++++++++++++
 1 file changed, 48 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/video/bridge/ps8640.txt

diff --git a/Documentation/devicetree/bindings/video/bridge/ps8640.txt b/Documentation/devicetree/bindings/video/bridge/ps8640.txt
new file mode 100644
index 0000000..450b5df
--- /dev/null
+++ b/Documentation/devicetree/bindings/video/bridge/ps8640.txt
@@ -0,0 +1,48 @@
+ps8640-bridge bindings
+
+Required properties:
+	- compatible: "parade,ps8640"
+	- reg: first i2c address of the bridge
+	- power-gpios: OF device-tree gpio specification for power pin.
+	- reset-gpios: OF device-tree gpio specification for reset pin.
+	- mode-sel-gpios: OF device-tree gpio specification for mode-sel pin.
+	- ps8640-1v2-supply: OF device-tree regulator specification for 1v2.
+	- ps8640-3v3-supply: OF device-tree regulator specification for 3v3.
+
+Optional properties:
+	- video interfaces: Device node can contain video interface port
+			    nodes for panel according to [1].
+
+[1]: Documentation/devicetree/bindings/media/video-interfaces.txt
+
+Example:
+	edp-bridge@18 {
+		compatible = "parade,ps8640";
+		reg = <0x18>;
+		power-gpios = <&pio 116 GPIO_ACTIVE_HIGH>;
+		reset-gpios = <&pio 115 GPIO_ACTIVE_HIGH>;
+		mode-sel-gpios = <&pio 92 GPIO_ACTIVE_HIGH>;
+		ps8640-1v2-supply = <&ps8640_fixed_1v2>;
+		ps8640-3v3-supply = <&mt6397_vgp2_reg>;
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+
+				ps8640_in: endpoint {
+					remote-endpoint = <&dsi0_out>;
+				};
+			};
+
+			port@1 {
+				reg = <1>;
+
+				ps8640_out: endpoint {
+					remote-endpoint = <&panel_in>;
+				};
+			};
+		};
+	};
-- 
1.7.9.5

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