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| author |   Radhakrishna Sripada <radhakrishna.sripada@intel.com> | 2017-09-14 11:16:41 -0700 |
|---|---|---|
| committer |   Rodrigo Vivi <rodrigo.vivi@intel.com> | 2017-09-18 12:37:57 -0700 |
| commit | da83ef85f5356b4bdf534add20fb34dcc6b53fc1 (patch) | |
| tree | e7e6420ed833b8ae2d058f4d35480156e7f76d15 /drivers/gpu/drm/i915/intel_psr.c | |
| parent | drm/i915/perf: add support for Coffeelake GT2 (diff) | |
| download | linux-dev-da83ef85f5356b4bdf534add20fb34dcc6b53fc1.tar.xz linux-dev-da83ef85f5356b4bdf534add20fb34dcc6b53fc1.zip | |
drm/i915: Do not enable DRRS when PSR is enabled
Some platforms do not support PSR and DRRS simultaneously.
Visual artifacts and flickering were reported on BDW HP Spectre
x360 Convertible. Deferring to PSR when both PSR and DRRS are
supported by the panel.
V2: Minor code-style changes suggested by Rodrigo
V3: Add a WARN_ON during PSR init suggested by Dhinakaran
Correct debug message,title suggested by Jani
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=101111
Cc: Nicholas Stommel <nicholas.stommel@gmail.com>
Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Clinton Taylor <clinton.a.taylor@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170914181641.24393-1-radhakrishna.sripada@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/intel_psr.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_psr.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c index 55b4002bbe53..acb50945bfa8 100644 --- a/drivers/gpu/drm/i915/intel_psr.c +++ b/drivers/gpu/drm/i915/intel_psr.c @@ -530,6 +530,7 @@ void intel_psr_enable(struct intel_dp *intel_dp, return; } + WARN_ON(dev_priv->drrs.dp); mutex_lock(&dev_priv->psr.lock); if (dev_priv->psr.enabled) { DRM_DEBUG_KMS("PSR already in use\n"); |