If a panel's EDID is broken, there may be an override EDID set in the
ACPI OpRegion mailbox #5. Use it if available.
Cc: Uma Shankar <uma.shan...@intel.com>
Signed-off-by: Jani Nikula <jani.nik...@intel.com>
---
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 c57ac83bf563..d1307be196a2 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -8114,6 +8114,9 @@ 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_override(intel_connector);
+
mutex_lock(&dev->mode_config.mutex);
edid = drm_get_edid(connector, &intel_dp->aux.ddc);
if (edid) {
--
2.20.1
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