[PATCH v13 06/12] dt-bindings: add document for dw_hdmi

[Andy Yan]

Signed-off-by: Andy Yan <andy.yan@xxxxxxxxxxxxxx>

---

Changes in v13: None
Changes in v12: None
Changes in v11: None
Changes in v10: None
Changes in v9: None
Changes in v8:
- correct some spelling mistake
- modify ddc-i2c-bus and interrupt description

Changes in v7: None
Changes in v6: None
Changes in v5: None
Changes in v4: None
Changes in v3: None

 .../devicetree/bindings/drm/bridge/dw_hdmi.txt     | 40 ++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/drm/bridge/dw_hdmi.txt

diff --git a/Documentation/devicetree/bindings/drm/bridge/dw_hdmi.txt b/Documentation/devicetree/bindings/drm/bridge/dw_hdmi.txt
new file mode 100644
index 0000000..107c1ca
--- /dev/null
+++ b/Documentation/devicetree/bindings/drm/bridge/dw_hdmi.txt
@@ -0,0 +1,40 @@
+DesignWare HDMI bridge bindings
+
+Required properities:
+- compatible: platform specific such as:
+   * "fsl,imx6q-hdmi"
+   * "fsl,imx6dl-hdmi"
+   * "rockchip,rk3288-dw-hdmi"
+- reg: Physical base address and length of the controller's registers.
+- ddc-i2c-bus: phandle of an I2C controller used for DDC EDID probing
+- interrupts: The HDMI interrupt number
+
+Optional properties
+- reg-io-width: the width of the reg:1,4, default set to 1 if not present
+
+Example:
+	hdmi: hdmi@0120000 {
+		compatible = "fsl,imx6q-hdmi";
+		reg = <0x00120000 0x9000>;
+		interrupts = <0 115 0x04>;
+		gpr = <&gpr>;
+		clocks = <&clks 123>, <&clks 124>;
+		clock-names = "iahb", "isfr";
+		ddc-i2c-bus = <&i2c2>;
+
+		port@0 {
+			reg = <0>;
+
+			hdmi_mux_0: endpoint {
+				remote-endpoint = <&ipu1_di0_hdmi>;
+			};
+		};
+
+		port@1 {
+			reg = <1>;
+
+			hdmi_mux_1: endpoint {
+				remote-endpoint = <&ipu1_di1_hdmi>;
+			};
+		};
+	};
-- 
1.9.1

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