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[v20,1/2] Documentation: bridge: Add documentation for ps8640 DT properties

Message ID 1570436549-8694-2-git-send-email-uli@fpond.eu (mailing list archive)
State New, archived
Headers show
Series PS8640 MIPI-to-eDP bridge | expand

Commit Message

Ulrich Hecht Oct. 7, 2019, 8:22 a.m. UTC 
From: Jitao Shi <jitao.shi@mediatek.com>

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

Signed-off-by: Jitao Shi <jitao.shi@mediatek.com>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Ulrich Hecht <uli@fpond.eu>
---

Changes since v15:
 - No change.

Changes since v14:
 - change mode-sel-gpios as optional.

 .../devicetree/bindings/display/bridge/ps8640.txt  | 44 ++++++++++++++++++++++
 1 file changed, 44 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/bridge/ps8640.txt
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Patch

diff --git a/Documentation/devicetree/bindings/display/bridge/ps8640.txt b/Documentation/devicetree/bindings/display/bridge/ps8640.txt
new file mode 100644
index 0000000..7b13f92
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/ps8640.txt
@@ -0,0 +1,44 @@ 
+ps8640-bridge bindings
+
+Required properties:
+	- compatible: "parade,ps8640"
+	- reg: first page address of the bridge.
+	- sleep-gpios: OF device-tree gpio specification for PD pin.
+	- reset-gpios: OF device-tree gpio specification for reset pin.
+	- vdd12-supply: OF device-tree regulator specification for 1.2V power.
+	- vdd33-supply: OF device-tree regulator specification for 3.3V power.
+	- ports: The device node can contain video interface port nodes per
+		 the video-interfaces bind[1]. For port@0,set the reg = <0> as
+		 ps8640 dsi in and port@1,set the reg = <1> as ps8640 eDP out.
+
+Optional properties:
+	- mode-sel-gpios: OF device-tree gpio specification for mode-sel pin.
+[1]: Documentation/devicetree/bindings/media/video-interfaces.txt
+
+Example:
+	edp-bridge@18 {
+		compatible = "parade,ps8640";
+		reg = <0x18>;
+		sleep-gpios = <&pio 116 GPIO_ACTIVE_LOW>;
+		reset-gpios = <&pio 115 GPIO_ACTIVE_LOW>;
+		mode-sel-gpios = <&pio 92 GPIO_ACTIVE_HIGH>;
+		vdd12-supply = <&ps8640_fixed_1v2>;
+		vdd33-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>;
+				};
+			};
+		};
+	};