[Intel-gfx] [PATCH] drm/915/psr: Set psr.source_ok during atomic_check

[Dhinakaran Pandiyan]

Since commit 4d90f2d507ab ("drm/i915: Start tracking PSR state in crtc
state"), we check whether PSR can be enabled or not in
psr_compute_config(). Given that the psr.source_ok field is supposed to
track this check, set the field in psr_compute_config() as well.

Now tests can distinguish between PSR not enabled due to unmet mode
requirements and something going wrong during commit.

Cc: Rodrigo Vivi <rodrigo.vivi at intel.com>
Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>
Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan at intel.com>
---
 drivers/gpu/drm/i915/intel_psr.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c
index a1ad85fa5c1a..b59a956047ff 100644
--- a/drivers/gpu/drm/i915/intel_psr.c
+++ b/drivers/gpu/drm/i915/intel_psr.c
@@ -358,6 +358,8 @@ void intel_psr_compute_config(struct intel_dp *intel_dp,
 		&crtc_state->base.adjusted_mode;
 	int psr_setup_time;
 
+	dev_priv->psr.source_ok = false;
+
 	if (!HAS_PSR(dev_priv))
 		return;
 
@@ -420,7 +422,7 @@ void intel_psr_compute_config(struct intel_dp *intel_dp,
 	 * caps during eDP detection.
 	 */
 	if (!dev_priv->psr.psr2_support) {
-		crtc_state->has_psr = true;
+		dev_priv->psr.source_ok = (crtc_state->has_psr = true);
 		return;
 	}
 
@@ -440,7 +442,7 @@ void intel_psr_compute_config(struct intel_dp *intel_dp,
 		return;
 	}
 
-	crtc_state->has_psr = true;
+	dev_priv->psr.source_ok = (crtc_state->has_psr = true);
 	crtc_state->has_psr2 = true;
 }
 
@@ -522,8 +524,6 @@ void intel_psr_enable(struct intel_dp *intel_dp,
 	}
 
 	dev_priv->psr.psr2_support = crtc_state->has_psr2;
-	dev_priv->psr.source_ok = true;
-
 	dev_priv->psr.busy_frontbuffer_bits = 0;
 
 	dev_priv->psr.setup_vsc(intel_dp, crtc_state);
@@ -657,7 +657,7 @@ void intel_psr_disable(struct intel_dp *intel_dp,
 	/* Disable PSR on Sink */
 	drm_dp_dpcd_writeb(&intel_dp->aux, DP_PSR_EN_CFG, 0);
 
-	dev_priv->psr.enabled = NULL;
+	dev_priv->psr.source_ok = (dev_priv->psr.enabled = NULL);
 	mutex_unlock(&dev_priv->psr.lock);
 
 	cancel_delayed_work_sync(&dev_priv->psr.work);
-- 
2.11.0