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drm/i915: only disable enabled planes on intel_fb_restore_mode

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We should avoid touching registers that are on the power down well
when we don't need to, because if we touch these registers when the
power well is disabled we'll get tons of "unclaimed register"
messages. This commit fixes some of these messages.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Paulo Zanoni 2013-01-25 16:59:13 -02:00 committed by Daniel Vetter
parent fa42e23c10
commit 56e5a3f043
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/i915/intel_fb.c
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@ -304,7 +304,8 @@ void intel_fb_restore_mode(struct drm_device *dev)
/* Be sure to shut off any planes that may be active */
list_for_each_entry(plane, &config->plane_list, head)
plane->funcs->disable_plane(plane);
if (plane->enabled)
plane->funcs->disable_plane(plane);
mutex_unlock(&dev->mode_config.mutex);
}