[PATCH 3/9] drm/i915: Do not try to enable PSR when Panel doesn't suport it.

Rodrigo Vivi
2014-06-13T00:15:18Z

Also do not cache aux info. That info could be related to another panel.

Reviewed-by: Vijay Purushothaman <vijay.a.purushothaman@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
---
drivers/gpu/drm/i915/intel_dp.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index a7b4ac9..68289ce 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1613,11 +1613,9 @@ static void intel_dp_get_config(struct intel_encoder *encoder,
}
}

-static bool is_edp_psr(struct drm_device *dev)
+static bool is_edp_psr(struct intel_dp *intel_dp)
{
- struct drm_i915_private *dev_priv = dev->dev_private;
-
- return dev_priv->psr.sink_support;
+ return intel_dp->psr_dpcd[0] & DP_PSR_IS_SUPPORTED;
}

static bool intel_edp_is_psr_enabled(struct drm_device *dev)
@@ -1821,6 +1819,11 @@ void intel_edp_psr_enable(struct intel_dp *intel_dp)
return;
}

+ if (!is_edp_psr(intel_dp)) {
+ DRM_DEBUG_KMS("PSR not supported by this panel\n");
+ return;
+ }
+
/* Setup PSR once */
intel_edp_psr_setup(intel_dp);

@@ -1862,9 +1865,6 @@ void intel_edp_psr_update(struct drm_device *dev)
if (encoder->type == INTEL_OUTPUT_EDP) {
intel_dp = enc_to_intel_dp(&encoder->base);

- if (!is_edp_psr(dev))
- return;
-
if (!intel_edp_psr_match_conditions(intel_dp))
intel_edp_psr_disable(intel_dp);
else
--
1.9.3