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 --- 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
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>; + }; + }; + }; + };