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drm/i915/psr: Stop clobbering TRANS_SET_CONTEXT_LATENCY

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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@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230213225258.2127-8-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
This commit is contained in:
Ville Syrjälä
2023-02-14 00:52:53 +02:00
parent 050db7d70c
commit fedee62781
1 changed files with 0 additions and 13 deletions
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13
drivers/gpu/drm/i915/display/intel_psr.c
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@@ -1163,13 +1163,6 @@ 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,
@@ -1334,12 +1327,6 @@ 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,