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drm: allow changing DPMS mode

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The drm_atomic_helper_connector_dpms
will set the connector back the old DPMS state
before returning. This makes it impossible to change
DPMS state of the connector.

Fixes: 0853695c3b
v2: edit of commit message
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Eric Engestrom <eric.engestrom@imgtec.com>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: dri-devel@lists.freedesktop.org
Cc: <drm-intel-fixes@lists.freedesktop.org>
Signed-off-by: Marta Lofstedt <marta.lofstedt@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20161205120408.13056-1-marta.lofstedt@intel.com
This commit is contained in:
Marta Lofstedt 2016-12-05 14:04:08 +02:00 committed by Daniel Vetter
parent 16571a8a43
commit 8f5040e421
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/drm_atomic_helper.c
View file

@ -2885,8 +2885,8 @@ retry:
fail:
if (ret == -EDEADLK)
goto backoff;
connector->dpms = old_mode;
if (ret != 0)
connector->dpms = old_mode;
drm_atomic_state_put(state);
return ret;