It is not a bad idea to disable the PSR feature on Sink
when we are disabling on the Source.
v2: Move dpcd write inside mutex protected area as suggested by Sonika.
Cc: Sonika Jindal <sonika.jin...@intel.com>
Suggested-by: Sonika Jindal <sonika.jin...@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.v...@intel.com>
---
drivers/gpu/drm/i915/intel_psr.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c
index 2b2f84d..3bbb270 100644
--- a/drivers/gpu/drm/i915/intel_psr.c
+++ b/drivers/gpu/drm/i915/intel_psr.c
@@ -518,11 +518,15 @@ void intel_psr_disable(struct intel_dp *intel_dp)
return;
}
+ /* Disable PSR on Source */
if (HAS_DDI(dev))
hsw_psr_disable(intel_dp);
else
vlv_psr_disable(intel_dp);
+ /* Disable PSR on Sink */
+ drm_dp_dpcd_writeb(&intel_dp->aux, DP_PSR_EN_CFG, 0);
+
dev_priv->psr.enabled = NULL;
mutex_unlock(&dev_priv->psr.lock);
--
2.4.3
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