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drm/i915: Remove vblank wait from hsw_enable_ips, v2.

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intel_post_plane_update did an extra vblank wait that's no longer needed when enabling ips.

Changes since v1:
- Add comment explaining why vblank wait is performed. (Paulo)

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/56F29B28.5070804@linux.intel.com
This commit is contained in:
Maarten Lankhorst
2016-03-23 14:33:28 +01:00
parent 321d178edb
commit 307e449880
1 changed files with 5 additions and 2 deletions
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7
drivers/gpu/drm/i915/intel_display.c
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@@ -4412,8 +4412,11 @@ void hsw_enable_ips(struct intel_crtc *crtc)
if (!crtc->config->ips_enabled)
return;
/* We can only enable IPS after we enable a plane and wait for a vblank */
intel_wait_for_vblank(dev, crtc->pipe);
/*
* We can only enable IPS after we enable a plane and wait for a vblank
* This function is called from post_plane_update, which is run after
* a vblank wait.
*/
assert_plane_enabled(dev_priv, crtc->plane);
if (IS_BROADWELL(dev)) {