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Commit de44d971 authored by Adam Jackson's avatar Adam Jackson Committed by Dave Airlie
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drm/dp: Add DPCD defines for register 0x007 



Low four bits are downstream port count.  High bit indicates peer OUI
support.  OUI matching will allow us to do additional per-sink handling
for things like DP->VGA bandwidth limits or (hopefully) the iMac-as-
display hack.

Signed-off-by: default avatarAdam Jackson <ajax@redhat.com>
Reviewed-by: default avatarJerome Glisse <jglisse@redhat.com>
Acked-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent 86c3c3be

include/drm/drm_dp_helper.h

+4 −0
Original line number Diff line number Diff line
@@ -72,6 +72,10 @@ 


#define DP_MAIN_LINK_CHANNEL_CODING         0x006



#define DP_DOWN_STREAM_PORT_COUNT	    0x007

#define  DP_PORT_COUNT_MASK		    0x0f

#define  DP_OUI_SUPPORT			    (1 << 7)



#define DP_EDP_CONFIGURATION_CAP            0x00d

#define DP_TRAINING_AUX_RD_INTERVAL         0x00e