From: Jani Nikula <jani.nikula@xxxxxxxxx>
If a panel's EDID is broken, there may be an override EDID set in the
ACPI OpRegion mailbox #5. Use it if available.
Fixes the GPD Win Max display.
Cc: Uma Shankar <uma.shankar@xxxxxxxxx>
Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
Signed-off-by: Anisse Astier <anisse@xxxxxxxxx>
[Anisse changes: function name]
---
drivers/gpu/drm/i915/display/intel_dp.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 5c9222283044..43fb485c0e02 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -5191,6 +5191,9 @@ static bool intel_edp_init_connector(struct intel_dp *intel_dp,
goto out_vdd_off;
}
+ /* Set up override EDID, if any, from ACPI OpRegion */
+ intel_opregion_edid_probe(intel_connector);
+
mutex_lock(&dev->mode_config.mutex);
edid = drm_get_edid(connector, &intel_dp->aux.ddc);
if (edid) {
--
2.31.1
