diff options
| author | Dave Airlie <airlied@redhat.com> | 2014-12-08 13:23:37 +1000 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2014-12-08 14:07:52 +0200 |
| commit | e7d6f7d708290da1b7c92f533444b042c79412e0 (patch) | |
| tree | 03e44e749fc320d849774c352e676b0e4fe404a2 | |
| parent | 9cca30688043eb1b6569f794041dfeec218dffa5 (diff) | |
drm/i915: resume MST after reading back hw state
Otherwise the MST resume paths can hit DPMS paths
which hit state checker paths, which hit WARN_ON,
because the state checker is inconsistent with the
hw.
This fixes a bunch of WARN_ON's on resume after
undocking.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: stable@vger.kernel.org
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 1e9c136a874..f990ab4c3ef 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -706,11 +706,12 @@ static int i915_drm_resume(struct drm_device *dev) dev_priv->display.hpd_irq_setup(dev); spin_unlock_irq(&dev_priv->irq_lock); - intel_dp_mst_resume(dev); drm_modeset_lock_all(dev); intel_modeset_setup_hw_state(dev, true); drm_modeset_unlock_all(dev); + intel_dp_mst_resume(dev); + /* * ... but also need to make sure that hotplug processing * doesn't cause havoc. Like in the driver load code we don't |