Document the bindings used for the sn65dsi86 DSI to eDP bridge.
Signed-off-by: Sandeep Panda <spanda@xxxxxxxxxxxxxx>
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.../bindings/display/bridge/ti,sn65dsi86.txt | 75 ++++++++++++++++++++++
1 file changed, 75 insertions(+)
create mode 100644 Documentation/devicetree/bindings/display/bridge/ti,sn65dsi86.txt
diff --git a/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi86.txt b/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi86.txt
new file mode 100644
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+SN65DSI86 DSI to eDP bridge chip
+--------------------------------
+
+This is the binding for Texas Instruments SN65DSI86 bridge.
+
+Required properties:
+- compatible: Must be "ti,sn65dsi86"
+- reg: i2c address of the chip, 0x2d as per datasheet
+- enable-gpios: OF device-tree gpio specification for EDP_BRIJ_EN pin
+- aux-sda-gpios: OF device-tree gpio specification for EDP_BRIJ_I2C_SDA pin of AUX channel
+- aux-scl-gpios: OF device-tree gpio specification for EDP_BRIJ_I2C_SCL pin of AUX channel
+- bias-en-gpios: OF device-tree gpio specification for EN_PP3300_DX_EDP pin to
+ enable 3.3V supply to eDP connector
+- bklt-en-gpios: OF device-tree gpio specification for AP_EDP_BKLTEN pin
+
+- vccio-supply: A 1.8V supply that powers up the PHY.
+- vcca-supply: A 1.2V supply that powers up the Controller.
+- vccs-supply: A 3.3V supply that power the eDP connector
+
+Optional properties:
+
+- irq-gpios: OF device-tree gpio specification for interrupt pin
+- bklt-ctrl-gpios: OF device-tree gpio specification for EDP_BKLTCTL pin
+
+- sn,is-pluggable: boolean property to specify if HPD supported or not
+- sn,custom-modes: OF device-tree specifiction to add support for custom modes
+
+Required nodes:
+
+This device has two video ports. Their connections are modelled using the OF
+graph bindings specified in Documentation/devicetree/bindings/graph.txt.
+
+- Video port 0 for DSI input
+- Video port 1 for eDP output
+
+Example
+-------
+
+edp-bridge@2d {
+ compatible = "ti,sn65dsi86";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x2d>;
+
+ enable-gpios = <&msmgpio 33 GPIO_ACTIVE_HIGH>;
+ aux-sda-gpios = <&msmgpio 34 GPIO_ACTIVE_HIGH>;
+ aux-scl-gpios = <&msmgpio 35 GPIO_ACTIVE_HIGH>;
+ bias-en-gpios = <&msmgpio 36 GPIO_ACTIVE_HIGH>;
+ bklt-en-gpios = <&msmgpio 37 GPIO_ACTIVE_HIGH>;
+
+ vccio-supply = <&pm8916_l17>;
+ vcca-supply = <&pm8916_l6>;
+ vccs-supply = <&pm8916_l7>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ edp_bridge_in: endpoint {
+ remote-endpoint = <&dsi_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ edp_bridge_out: endpoint {
+ remote-endpoint = <&edp_panel_in>;
+ };
+ };
+ };
+}
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