[Intel-gfx] [PATCH 12/15] drm: RIP mode_config->rotation_property

[Laurent Pinchart]

Hi Daniel,

On Tuesday 18 Oct 2016 09:36:23 Daniel Vetter wrote:
> On Tue, Oct 18, 2016 at 01:38:05AM +0300, Laurent Pinchart wrote:
> > On Friday 22 Jul 2016 16:43:13 ville.syrjala at linux.intel.com wrote:
> >> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
> >> 
> >> Now that all drivers have been converted over to the per-plane rotation
> >> property, we can just nuke the global rotation property.
> >> 
> >> Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
> > 
> > Stupid question, but how does this work when the hardware supports global
> > rotation only, not per-plane rotation ?
> 
> Does that exist? If so I guess we get to add a rotation property to CRTCS
> (and update docs and all that).

I have a hardware composer that performs rotation on the output side. At the 
moment it doesn't support rotation when used with the display, but I wouldn't 
rule that out in future SoC versions. So I'm not aware of any use case for a 
rotation property on the CRTC at the moment, I just wanted to make sure we 
have a path forward.

-- 
Regards,

Laurent Pinchart