On 2014?12?03? 02:23, Philipp Zabel wrote:
> Hi Andy,
>
> Am Dienstag, den 02.12.2014, 15:42 +0800 schrieb Andy Yan:
>> 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"
> I think we should add a common compatible value "snps,dw-hdmi-tx" here:
>
> compatible = "fsl,imx6q-hdmi", "snps,dw-hdmi-tx";
>
>> +- reg: Physical base address and length of the controller's registers.
>> +- ddc-i2c-bus: phandle of an I2C controller used for DDC EDID probing
> Better make ddc-i2c-bus optional, see the other thread about the ddc i2c
> master.
I have the same idea too, but the patch about ddc i2c master has not
landed yet, can we change the ddc-i2c-bus to optional after the ddc
i2c master
patch land?
>> +- 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 at 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 at 0 {
>> + reg = <0>;
>> +
>> + hdmi_mux_0: endpoint {
>> + remote-endpoint = <&ipu1_di0_hdmi>;
>> + };
>> + };
>> +
>> + port at 1 {
>> + reg = <1>;
>> +
>> + hdmi_mux_1: endpoint {
>> + remote-endpoint = <&ipu1_di1_hdmi>;
>> + };
>> + };
>> + };
> regards
> Philipp
>
>
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