[Intel-gfx] [PATCH 07/12] drm/i915/psr: Stop clobbering TRANS_SET_CONTEXT_LATENCY

[Ville Syrjala]

From: Ville Syrjälä <ville.syrjala at linux.intel.com>

The PSR code has no business mucking around with the
vblank delay. Currently nothing that depends on knowing
the exact vblank start scanline (eg. vblank evasion)
is aware of this and so will not work correctly.

The w/a seems to be for pre-production hw only, so let's
just nuke it.

Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_psr.c | 13 -------------
 1 file changed, 13 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c
index a021f59f0ac7..cb02f572e1d8 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -1179,13 +1179,6 @@ static void intel_psr_enable_source(struct intel_dp *intel_dp,
 			intel_de_rmw(dev_priv, CHICKEN_TRANS(cpu_transcoder), 0,
 				     ADLP_1_BASED_X_GRANULARITY);
 
-		/* Wa_16011168373:adl-p */
-		if (IS_ADLP_DISPLAY_STEP(dev_priv, STEP_A0, STEP_B0))
-			intel_de_rmw(dev_priv,
-				     TRANS_SET_CONTEXT_LATENCY(intel_dp->psr.transcoder),
-				     TRANS_SET_CONTEXT_LATENCY_MASK,
-				     TRANS_SET_CONTEXT_LATENCY_VALUE(1));
-
 		/* Wa_16012604467:adlp,mtl[a0,b0] */
 		if (IS_MTL_DISPLAY_STEP(dev_priv, STEP_A0, STEP_B0))
 			intel_de_rmw(dev_priv,
@@ -1350,12 +1343,6 @@ static void intel_psr_disable_locked(struct intel_dp *intel_dp)
 			     wa_16013835468_bit_get(intel_dp), 0);
 
 	if (intel_dp->psr.psr2_enabled) {
-		/* Wa_16011168373:adl-p */
-		if (IS_ADLP_DISPLAY_STEP(dev_priv, STEP_A0, STEP_B0))
-			intel_de_rmw(dev_priv,
-				     TRANS_SET_CONTEXT_LATENCY(intel_dp->psr.transcoder),
-				     TRANS_SET_CONTEXT_LATENCY_MASK, 0);
-
 		/* Wa_16012604467:adlp,mtl[a0,b0] */
 		if (IS_MTL_DISPLAY_STEP(dev_priv, STEP_A0, STEP_B0))
 			intel_de_rmw(dev_priv,
-- 
2.39.1