[Intel-gfx] [PATCH] drm/i915: Don't clobber crtc->new_config when nothing changes

[Daniel Vetter]

On Fri, Nov 21, 2014 at 09:00:36PM +0200, ville.syrjala at linux.intel.com wrote:
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
> 
> When doing a nop modeset we currently leave crtc->new_config point at
> the already freed temporary pipe_config. That will anger the sanity
> checks in intel_modeset_update_state() when the nop modeset gets
> followed by a GPU reset on gen3/4 where the display block gets fully
> reinitialized during the reset.
> 
> So leave crtc->new_config alone until we know a modeset is actually
> required.
> 
> Cc: Jesse Barnes <jbarnes at virtuousgeek.org>
> Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>

Queued for -next, thanks for the patch.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch