[Intel-gfx] [PATCH] drm/i915/tgl: Enabling DSC on Pipe A for TGL

[Madhumitha Tolakanahalli Pradeep]

Removing restriction on Pipe A as TigerLake onwards, all the pipes support DSC.

Cc: Manasi Navare <manasi.d.navare at intel.com>
Signed-off-by: Madhumitha Tolakanahalli Pradeep <madhumitha.tolakanahalli.pradeep at intel.com>
---
 drivers/gpu/drm/i915/display/intel_dp.c | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 4884c87c8ed7..a5b50f93fac5 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -1739,8 +1739,12 @@ static bool intel_dp_source_supports_fec(struct intel_dp *intel_dp,
 {
 	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
 
-	return INTEL_GEN(dev_priv) >= 11 &&
-		pipe_config->cpu_transcoder != TRANSCODER_A;
+	/* On TGL, DSC is supported on all Pipes */
+	if (INTEL_GEN(dev_priv) >= 12)
+		return true;
+	else
+		return INTEL_GEN(dev_priv) == 11 &&
+			pipe_config->cpu_transcoder != TRANSCODER_A;
 }
 
 static bool intel_dp_supports_fec(struct intel_dp *intel_dp,
@@ -1755,8 +1759,12 @@ static bool intel_dp_source_supports_dsc(struct intel_dp *intel_dp,
 {
 	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
 
-	return INTEL_GEN(dev_priv) >= 10 &&
-		pipe_config->cpu_transcoder != TRANSCODER_A;
+	/* On TGL, DSC is supported on all Pipes */
+	if (INTEL_GEN(dev_priv) >= 12)
+		return true;
+	else
+		return (INTEL_GEN(dev_priv) == 10 || INTEL_GEN(dev_priv) == 11) &&
+			pipe_config->cpu_transcoder != TRANSCODER_A;
 }
 
 static bool intel_dp_supports_dsc(struct intel_dp *intel_dp,
-- 
2.17.1