DP_TEST_EDID_CHECKSUM 628 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c DP_TEST_EDID_CHECKSUM, DP_TEST_EDID_CHECKSUM 4639 drivers/gpu/drm/i915/display/intel_dp.c if (drm_dp_dpcd_writeb(&intel_dp->aux, DP_TEST_EDID_CHECKSUM,