Re: [PATCH 4/9] Doc/DT: Add DT binding documentation for HDMI Connector

[Tomi Valkeinen <tomi.valkeinen@ti.com>]

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On 28/02/14 18:06, Russell King - ARM Linux wrote:

>> +hdmi0: connector@1 {
>> +	compatible = "hdmi-connector";
>> +	label = "hdmi";
>> +
>> +	hdmi_connector_in: endpoint {
>> +		remote-endpoint = <&tpd12s015_out>;
>> +	};
>> +};
> 
> It seems rather weird to have DVI connectors having an optional I2C
> property, but HDMI (which augments DVI) not having that as at least an
> optional property.

I have added only the properties that I have used. I did think about the
i2c for HDMI also, but thought that I don't use it, and so can't test
it, and so I could well create a bad binding.

And, as I don't see any issue in adding it later, when someone uses it,
I decided to leave it out.

> I can quite well see the iMX HDMI support needing an i2c bus here.
> 
> Also, HDMI has two connector standards - type A and type B, much like
> the single vs dual link of DVI.  Again, DRM exposes this to userspace.

True, but isn't that just a form factor? No functional differences? But
I agree, we can add the two types here also to the compatible string.

 Tomi




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