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authorDave Airlie <airlied@redhat.com>2014-10-20 16:13:19 +1000
committerDave Airlie <airlied@redhat.com>2014-12-09 09:56:46 +1000
commitb49b55bd4fba6aa9bb25459e0ac3991c60c4aba4 (patch)
treeaf36768ec55e799169247ceb9695fe62f38341d0 /include/drm/drm_edid.h
parent0391359ddf79b52bb7e7bb9ace08e34fb08b0e76 (diff)
downloadlinux-b49b55bd4fba6aa9bb25459e0ac3991c60c4aba4.tar.gz
drm/displayid: add displayid defines and edid extension (v2)
These are just taken from the DisplayID v1.3 spec, and the
DDC spec.

v2: use __packed (Jani)

Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'include/drm/drm_edid.h')
-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;