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authorVille Syrjälä2014-08-18 21:16:02 +0200
committerDaniel Vetter2014-09-03 11:04:07 +0200
commit15e899a01b5a50d12c96f696a43d4bd5a1ece8be (patch)
tree086193d643add46f6ba7537810ad7e0ef6244aec /drivers/gpu/drm/i915/intel_dp.c
parentdrm/i915: Replace big nested if block with early return (diff)
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drm/i915: Warn about want_panel_vdd in edp_panel_vdd_off_sync()
If we force vdd off warn if someone is still using it. With this change the delayed vdd off work needs to check want_panel_vdd itself to make sure it doesn't try to turn vdd off when someone is using it. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_dp.c')
-rw-r--r--drivers/gpu/drm/i915/intel_dp.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 7e4baa8449c5..17389d0273a5 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1241,7 +1241,9 @@ static void edp_panel_vdd_off_sync(struct intel_dp *intel_dp)
WARN_ON(!drm_modeset_is_locked(&dev->mode_config.connection_mutex));
- if (intel_dp->want_panel_vdd || !edp_have_panel_vdd(intel_dp))
+ WARN_ON(intel_dp->want_panel_vdd);
+
+ if (!edp_have_panel_vdd(intel_dp))
return;
DRM_DEBUG_KMS("Turning eDP VDD off\n");
@@ -1273,7 +1275,8 @@ static void edp_panel_vdd_work(struct work_struct *__work)
struct drm_device *dev = intel_dp_to_dev(intel_dp);
drm_modeset_lock(&dev->mode_config.connection_mutex, NULL);
- edp_panel_vdd_off_sync(intel_dp);
+ if (!intel_dp->want_panel_vdd)
+ edp_panel_vdd_off_sync(intel_dp);
drm_modeset_unlock(&dev->mode_config.connection_mutex);
}