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-rw-r--r--include/drm/drm_edid.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h
index d59240ffb1f7..87d85e81d3a7 100644
--- a/include/drm/drm_edid.h
+++ b/include/drm/drm_edid.h
@@ -27,12 +27,14 @@
#define EDID_LENGTH 128
#define DDC_ADDR 0x50
+#define DDC_ADDR2 0x52 /* E-DDC 1.2 - where DisplayID can hide */
#define CEA_EXT 0x02
#define VTB_EXT 0x10
#define DI_EXT 0x40
#define LS_EXT 0x50
#define MI_EXT 0x60
+#define DISPLAYID_EXT 0x70
struct est_timings {
u8 t1;