1 files changed, 2 insertions, 0 deletions

diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index efcde2c38cc1..488b41635dec 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -310,6 +310,8 @@
 # define DP_TEST_NAK                        (1 << 1)
 # define DP_TEST_EDID_CHECKSUM_WRITE        (1 << 2)
 
+#define DP_TEST_EDID_CHECKSUM               0x261
+
 #define DP_TEST_SINK                        0x270
 #define DP_TEST_SINK_START          (1 << 0)