[Intel-gfx] [PATCH 2/2] drm/i915: Only enabled DRRS if PRS won't be enabled on this pipe.

[Rodrigo Vivi]

With PSR enabled being pre computed on pipe_config we can now
prevent DRRS to be enabled along with PSR.

Cc: Ramalingam C <ramalingam.c at intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi at intel.com>
---
 drivers/gpu/drm/i915/intel_dp.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 637dd53..af28833 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -4992,11 +4992,6 @@ static void intel_dp_set_drrs_state(struct drm_device *dev, int refresh_rate)
 		return;
 	}
 
-	/*
-	 * FIXME: This needs proper synchronization with psr state for some
-	 * platforms that cannot have PSR and DRRS enabled at the same time.
-	 */
-
 	dig_port = dp_to_dig_port(intel_dp);
 	encoder = &dig_port->base;
 	intel_crtc = encoder->new_crtc;
@@ -5082,6 +5077,11 @@ void intel_edp_drrs_enable(struct intel_dp *intel_dp)
 		return;
 	}
 
+	if (intel_crtc->config->psr_enabled) {
+		DRM_DEBUG_KMS("DRRS: PSR enabled on this crtc\n");
+		return;
+	}
+
 	mutex_lock(&dev_priv->drrs.mutex);
 	if (WARN_ON(dev_priv->drrs.dp)) {
 		DRM_ERROR("DRRS already enabled\n");
-- 
2.1.0