For ADL-P the timeout for DDI_BUF_CTL active is 500usec.
Update the same as per Bspec:55424.
Fixes: 5add4575c298 ("drm/i915/ddi: Align timeout for DDI_BUF_CTL active with Bspec")
Cc: Ankit Nautiyal <ankit.k.nautiyal@xxxxxxxxx>
Cc: Imre Deak <imre.deak@xxxxxxxxx>
Cc: Lucas De Marchi <lucas.demarchi@xxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx> # v6.3+
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@xxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_ddi.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index 55f36d9d509c..6d8e4d7a784e 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -216,8 +216,11 @@ static void intel_wait_ddi_buf_active(struct drm_i915_private *dev_priv,
} else if (DISPLAY_VER(dev_priv) >= 12) {
if (intel_phy_is_tc(dev_priv, phy))
timeout_us = 3000;
+ else if (IS_ALDERLAKE_P(dev_priv))
+ timeout_us = 500;
else
timeout_us = 1000;
+
} else {
timeout_us = 500;
}
--
2.25.1
