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-rw-r--r--drivers/gpu/drm/i915/display/intel_psr.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c
index 952dbf9aef79..bbac2f9157cb 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -628,6 +628,15 @@ static u32 intel_psr1_get_tp_time(struct intel_dp *intel_dp)
else
val |= EDP_PSR_TP2_TP3_TIME_2500us;
+ /*
+ * WA 0479: hsw,bdw
+ * "Do not skip both TP1 and TP2/TP3"
+ */
+ if (DISPLAY_VER(dev_priv) < 9 &&
+ connector->panel.vbt.psr.tp1_wakeup_time_us == 0 &&
+ connector->panel.vbt.psr.tp2_tp3_wakeup_time_us == 0)
+ val |= EDP_PSR_TP2_TP3_TIME_100us;
+
check_tp3_sel:
if (intel_dp_source_supports_tps3(dev_priv) &&
drm_dp_tps3_supported(intel_dp->dpcd))