]> git.karo-electronics.de Git - linux-beck.git/commit
drm/i915: use adjusted_mode instead of mode for checking the 6bpc force flag
authorJani Nikula <jani.nikula@intel.com>
Wed, 26 Sep 2012 15:43:10 +0000 (18:43 +0300)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Thu, 27 Sep 2012 06:42:10 +0000 (08:42 +0200)
commit0c96c65b48fba3ffe9822a554cbc0cd610765cd5
treebcbc9e7dda4b56b4f886b27865fc6a9c684ea73d
parentf531dcb23f9a5c6ad77e451459df965dc9a0c0c8
drm/i915: use adjusted_mode instead of mode for checking the 6bpc force flag

The dithering introduced in

commit 3b5c78a35cf7511c15e09a9b0ffab290a42d9bcf
Author: Adam Jackson <ajax@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@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.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=47621
CC: Adam Jackson <ajax@redhat.com>
CC: stable@vger.kernel.org
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/gpu/drm/i915/intel_display.c