Thread (61 messages) 61 messages, 6 authors, 2014-07-21

[RESEND PATCH v3 06/11] drm: add DT bindings documentation for atmel-hlcdc-dc driver

From: Thierry Reding <hidden>
Date: 2014-07-14 10:18:08
Also in: dri-devel, linux-devicetree, linux-pwm

On Fri, Jul 11, 2014 at 02:00:25PM +0200, Boris BREZILLON wrote:
On Fri, 11 Jul 2014 12:37:46 +0200 Laurent Pinchart [off-list ref] wrote:
quoted
On Thursday 10 July 2014 14:56:26 Boris BREZILLON wrote:
[...]
quoted
quoted
BTW, is there any reason for not defining an RGB connector type (I'm
currently defining HLCDC connector as an LVDS connector) ?
Not that I know of. The DRM API has been developed before display on embedded 
systems became such a hot topic. If we had to redo it today, panels might be 
exposed to userspace as such, with a connector. We have to live with the past, 
so the connector will stay, but adding a new RGB connector type could make 
sense (although we might need a different name, in a way the VGA and LVDS 
connectors also carry RGB signals).
I had the same concern: I didn't find how this kind of connectors
was named (most of the time they're just referenced as RGB) :-).
What about RAW_RGB ?
Are there even panels that take raw RGB as input? In all cases I've seen
(which admittedly may not be all that many) there's always a transparent
RGB/LVDS bridge, so the "connector" is in fact LVDS, not RGB, even if
the display controller outputs RGB directly.

Thierry
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