AFMT_INFOFRAME_CONTROL0  721 drivers/gpu/drm/radeon/evergreend.h #define AFMT_INFOFRAME_CONTROL0              0x7134
AFMT_INFOFRAME_CONTROL0  862 drivers/gpu/drm/radeon/rv770d.h #define AFMT_INFOFRAME_CONTROL0              0x760c