On Fri, Apr 13, 2018 at 1:23 AM Sandeep Panda spanda@codeaurora.org wrote:
Document the bindings used for the sn65dsi86 DSI to eDP bridge.
Signed-off-by: Sandeep Panda spanda@codeaurora.org
.../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 index 0000000..cbd2f0e --- /dev/null +++ b/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi86.txt @@ -0,0 +1,75 @@ +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
PP3300?
enable 3.3V supply to eDP connector+- bklt-en-gpios: OF device-tree gpio specification for AP_EDP_BKLTEN pin
I don't see any of these pins listed in the SN65DSI86 datasheet. Can you please use the actual pin names?
+- 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
Same comment here, this isn't listed in the datasheet
+- sn,is-pluggable: boolean property to specify if HPD supported or not
Could you infer this from whether there's a panel present in the dts?
+- sn,custom-modes: OF device-tree specifiction to add support for custom
modes
Please drop custom-modes, it doesn't belong on the bridge.
+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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