[PATCH 2/4] dt-bindings: Add ANX6345 DP/eDP transmitter binding

[Torsten Duwe]

From: Icenowy Zheng <icen...@aosc.io>

The ANX6345 is an ultra-low power DisplayPort/eDP transmitter designed
for portable devices.

Add a binding document for it.

Signed-off-by: Icenowy Zheng <icen...@aosc.io>
Signed-off-by: Vasily Khoruzhick <anars...@gmail.com>
Reviewed-by: Rob Herring <r...@kernel.org>
Signed-off-by: Torsten Duwe <d...@suse.de>
---

originally: patchwork.kernel.org/patch/10814177

All I did is change the reset polarity, which is evidently active low;
according to the (terse) datasheet. It matches the polarity in the last
patch.

---
 .../bindings/display/bridge/anx6345.txt       | 56 +++++++++++++++++++
 1 file changed, 56 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/bridge/anx6345.txt

diff --git a/Documentation/devicetree/bindings/display/bridge/anx6345.txt 
b/Documentation/devicetree/bindings/display/bridge/anx6345.txt
new file mode 100644
index 000000000000..e79a11348d11
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/anx6345.txt
@@ -0,0 +1,56 @@
+Analogix ANX6345 eDP Transmitter
+--------------------------------
+
+The ANX6345 is an ultra-low power Full-HD eDP transmitter designed for
+portable devices.
+
+Required properties:
+
+ - compatible          : "analogix,anx6345"
+ - reg                 : I2C address of the device
+ - reset-gpios         : Which GPIO to use for reset
+
+Optional properties:
+
+ - dvdd12-supply       : Regulator for 1.2V digital core power.
+ - dvdd25-supply       : Regulator for 2.5V digital core power.
+ - Video ports for RGB input and eDP output using the DT bindings
+   defined in [1]
+
+[1]: Documentation/devicetree/bindings/media/video-interfaces.txt
+
+Example:
+
+anx6345: anx6345@38 {
+       compatible = "analogix,anx6345";
+       reg = <0x38>;
+       reset-gpios = <&pio 3 24 GPIO_ACTIVE_LOW>; /* PD24 */
+       dvdd25-supply = <&reg_dldo2>;
+       dvdd12-supply = <&reg_fldo1>;
+
+       ports {
+               #address-cells = <1>;
+               #size-cells = <0>;
+
+               anx6345_in: port@0 {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       reg = <0>;
+                       anx6345_in_tcon0: endpoint@0 {
+                               reg = <0>;
+                               remote-endpoint = <&tcon0_out_anx6345>;
+                       };
+               };
+
+               anx6345_out: port@1 {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       reg = <1>;
+
+                       anx6345_out_panel: endpoint@0 {
+                               reg = <0>;
+                               remote-endpoint = <&panel_in_edp>;
+                       };
+               };
+       };
+};