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

Tomi Valkeinen tomi.valkeinen at ti.com
Sun Mar 2 23:23:05 PST 2014


On 01/03/14 20:58, Geert Uytterhoeven wrote:
> On Fri, Feb 28, 2014 at 5:34 PM, Russell King - ARM Linux
> <linux at arm.linux.org.uk> wrote:
>> There's actually three HDMI connectors:
>>
>>   All three connectors carry all required HDMI signals, including a TMDS
>>   link. The Type B connector is slightly larger and carries a second TMDS
>>   link, which is necessary to support very high resolution displays using
>>   dual link. The Type C connector carries the same signals as the Type A
>>   but is more compact and intended for mobile applications.
>>
>> So, Type C and Type A are electrically the same.
> 
> There's also D (e.g. on BeagleBone Black) and E:
> 
> http://en.wikipedia.org/wiki/HDMI#Connectors
> 
> Electrically they seem to be the same as A/C.

Right. And then there are the HDMI versions, and things like HDMI
Ethernet Channel. After looking at these a bit, I don't think the HDMI
connector needs any of those (hdmi version, eth) defined.

So...

	compatible = "hdmi-connector";
	type = "a";

Or

	compatible = "hdmi-connector";
	type-a;

I don't right away see any big pro with either one compared to the other.

 Tomi


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