diff mbox series

[05/15] drm/i915/pps: Don't apply quirks/etc. to the VBT PPS delays if they haven't been initialized

Message ID 20220510104242.6099-6-ville.syrjala@linux.intel.com (mailing list archive)
State New, archived
Headers show
Series drm/i915/bios: PNPID->panel_type matching | expand

Commit Message

Ville Syrjälä May 10, 2022, 10:42 a.m. UTC 
From: Ville Syrjälä <ville.syrjala@linux.intel.com>

Skip QUIRK_INCREASE_T12_DELAY and the t11_t12 adjustment of the
VBT PPS delays if we've not yet initialized them. Will be important
later when the PPS delay init can happen before VBT parsing.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_pps.c | 3 +++
 1 file changed, 3 insertions(+)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/i915/display/intel_pps.c b/drivers/gpu/drm/i915/display/intel_pps.c
index d1ce7dafce10..25f1962dbddf 100644
--- a/drivers/gpu/drm/i915/display/intel_pps.c
+++ b/drivers/gpu/drm/i915/display/intel_pps.c
@@ -1184,6 +1184,9 @@  static void pps_init_delays_vbt(struct intel_dp *intel_dp,
 
 	*vbt = dev_priv->vbt.edp.pps;
 
+	if (!pps_delays_valid(vbt))
+		return;
+
 	/* On Toshiba Satellite P50-C-18C system the VBT T12 delay
 	 * of 500ms appears to be too short. Ocassionally the panel
 	 * just fails to power back on. Increasing the delay to 800ms