UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

drm/i915: Reinitialize HPD after runtime D3 

Runtime suspends disabled all interrupts, so in order to get them back
fully we need to also do the HPD irq setup on runtime resume. Except
on VLV/CHV where the display interrupt initialization is part of the
display power well powerup.

Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Ville Syrjälä 2015-08-27 23:56:08 +03:00 committed by Daniel Vetter
parent 74c0b395fc
commit 08d8a232aa
1 changed files with 9 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/gpu/drm/i915/i915_drv.c
View File

@ -1555,6 +1555,15 @@ static int intel_runtime_resume(struct device *device)
gen6_update_ring_freq(dev);
intel_runtime_pm_enable_interrupts(dev_priv);
/*
* On VLV/CHV display interrupts are part of the display
* power well, so hpd is reinitialized from there. For
* everyone else do it here.
*/
if (!IS_VALLEYVIEW(dev_priv))
intel_hpd_init(dev_priv);
intel_enable_gt_powersave(dev);
if (ret)