Daniel Vetter 67c72a1225 drm/i915: preserve pipe A quirk in i9xx_set_pipeconf ... This regression has been introduced in commit 9f11a9e4e5 Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Thu Jun 13 00:54:58 2013 +0200 drm/i915: set up PIPECONF explicitly for i9xx/vlv platforms Ville brough up the idea that this is just the pipe A quirk gone wrong. Note that after resume the bios might or might not have enabled pipe A already. We have a bit of magic to make sure that on resume we set up a decent mode for pipe A, but I fear if I just smash pipe A to always on we'd enable it in a bogus state and hang the hw. Hence the readback. v2: Clarify the logic a bit as suggested by Chris. Also amend the commit message to clarify why we don't unconditionally enable the pipe. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=66462 References: https://lkml.org/lkml/2013/8/26/238 Cc: Meelis Roos <mroos@ut.ee> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> [danvet: Use |= instead of = as suggested by Chris.] Cc: stable@vger.kernel.org Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>		2013-09-24 20:39:00 +02:00
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drm	drm/i915: preserve pipe A quirk in i9xx_set_pipeconf	2013-09-24 20:39:00 +02:00
host1x	Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux	2013-09-05 10:17:26 -07:00
vga	vgaarb: Fix VGA decodes changes	2013-09-03 19:17:59 +02:00
Makefile	gpu: host1x: Add host1x driver	2013-04-22 12:32:40 +02:00