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platform_kernel-5.15
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drm/i915: Avoid re-configure panel on every PSR re-enable. 

The panel has to be reconfigured only when it really loose the power.
The traditional enable/disable sequence already take care of this so we can
minimize the time spend on every re-enable.

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Rodrigo Vivi 2014-09-16 19:19:07 -04:00 committed by Daniel Vetter
parent 0aa4878397
commit 7ca5a41f4d
1 changed files with 4 additions and 4 deletions
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8
drivers/gpu/drm/i915/intel_dp.c
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@ -2121,10 +2121,7 @@ static void intel_edp_psr_do_enable(struct intel_dp *intel_dp)
WARN_ON(dev_priv->psr.active);
lockdep_assert_held(&dev_priv->psr.lock);
/* Enable PSR on the panel */
intel_edp_psr_enable_sink(intel_dp);
/* Enable PSR on the host */
/* Enable/Re-enable PSR on the host */
intel_edp_psr_enable_source(intel_dp);
dev_priv->psr.active = true;
@ -2162,6 +2159,9 @@ void intel_edp_psr_enable(struct intel_dp *intel_dp)
I915_WRITE(EDP_PSR_DEBUG_CTL(dev), EDP_PSR_DEBUG_MASK_MEMUP |
EDP_PSR_DEBUG_MASK_HPD | EDP_PSR_DEBUG_MASK_LPSP);
/* Enable PSR on the panel */
intel_edp_psr_enable_sink(intel_dp);
dev_priv->psr.enabled = intel_dp;
unlock:
mutex_unlock(&dev_priv->psr.lock);