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authorDaniel Vetter <daniel.vetter@ffwll.ch>2012-12-02 01:05:46 +0100
committerDaniel Vetter <daniel.vetter@ffwll.ch>2013-01-20 22:16:47 +0100
commita0e99e68c12ac6dc5d6b1da7942b5e05d5f848af (patch)
tree13ffff3db0093be6878887ceebfbd0fafc2dc5d6 /drivers/gpu/drm/i915/intel_dp.c
parent848499032504b1defdebdcf930aa70bd01a45ac1 (diff)
downloadblackbird-op-linux-a0e99e68c12ac6dc5d6b1da7942b5e05d5f848af.tar.gz
blackbird-op-linux-a0e99e68c12ac6dc5d6b1da7942b5e05d5f848af.zip
drm/i915: use drm_modeset_lock_all
Two exceptions: - debugfs files only read information which is not related to crtc, so can stay on the modeset_config lock. - Same holds for the edp vdd work in intel_dp.c. Add a corresponding WARN_ON and a comment next to the intel_dp struct fields for documentation. 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.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 1b63d55318a0..6912d29f46f3 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1057,6 +1057,8 @@ static void ironlake_panel_vdd_off_sync(struct intel_dp *intel_dp)
struct drm_i915_private *dev_priv = dev->dev_private;
u32 pp;
+ WARN_ON(!mutex_is_locked(&dev->mode_config.mutex));
+
if (!intel_dp->want_panel_vdd && ironlake_edp_have_panel_vdd(intel_dp)) {
pp = ironlake_get_pp_control(dev_priv);
pp &= ~EDP_FORCE_VDD;
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