drm/i915/pps: Reinit PPS delays after VBT has been fully parsed

During the eDP probe we may not yet know the panel_type used
to index the VBT panel tables. So the initial eDP probe will have
to be done without that, and thus we won't yet have the PPS delays
from the VBT. Once the VBT has been fully parse we should reinit
the PPS delays to make sure it's fully accounted for.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220510104242.6099-9-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>

diff --git a/drivers/gpu/drm/i915/display/intel_pps.c b/drivers/gpu/drm/i915/display/intel_pps.c
index b805389..bcc70a3 100644 (file)
--- a/drivers/gpu/drm/i915/display/intel_pps.c
+++ b/drivers/gpu/drm/i915/display/intel_pps.c
@@ -1438,6 +1438,11 @@ void intel_pps_init_late(struct intel_dp *intel_dp)
        intel_wakeref_t wakeref;
 
        with_intel_pps_lock(intel_dp, wakeref) {
+               /* Reinit delays after per-panel info has been parsed from VBT */
+               memset(&intel_dp->pps.pps_delays, 0, sizeof(intel_dp->pps.pps_delays));
+               pps_init_delays(intel_dp);
+               pps_init_registers(intel_dp, false);
+
                if (edp_have_panel_vdd(intel_dp))
                        edp_panel_vdd_schedule_off(intel_dp);
        }