[Intel-gfx] [PATCH] drm/i915: use adjusted_mode instead of mode for checking the 6bpc force flag

[Daniel Vetter]

On Wed, Sep 26, 2012 at 11:50:36AM -0400, Adam Jackson wrote:
> On Wed, 2012-09-26 at 18:43 +0300, Jani Nikula wrote:
> > The dithering introduced in
> > 
> > commit 3b5c78a35cf7511c15e09a9b0ffab290a42d9bcf
> > Author: Adam Jackson <ajax at redhat.com>
> > Date:   Tue Dec 13 15:41:00 2011 -0800
> > 
> >     drm/i915/dp: Dither down to 6bpc if it makes the mode fit
> > 
> > stores the INTEL_MODE_DP_FORCE_6BPC flag in the private_flags of the
> > adjusted mode, while i9xx_crtc_mode_set() and ironlake_crtc_mode_set() use
> > the original mode, without the flag, so it would never have any
> > effect. However, the BPC was clamped by VBT settings, making things work by
> > coincidence, until that part was removed in
> > 
> > commit 4344b813f105a19f793f1fd93ad775b784648b95
> > Author: Daniel Vetter <daniel.vetter at ffwll.ch>
> > Date:   Fri Aug 10 11:10:20 2012 +0200
> > 
> > Use adjusted_mode instead of mode when checking for
> > INTEL_MODE_DP_FORCE_6BPC to make the flag have effect.
> > 
> > v2: Don't forget to fix this in i9xx_crtc_mode_set() also, pointed out by
> > Daniel both before and after sending the first patch.
> 
> Reviewed-by: Adam Jackson <ajax at redhat.com>
Picked up for -fixes, thanks for the patch.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch