From: Leo Li sunpeng.li@amd.com
eDP 1.5 specification defines PSR version 4.
It defines PSR1 and PSR2 support with selective-update (SU) capabilities, with additional support for Y-coordinate and Early Transport of the selective-update region.
This differs from PSR version 3 in that early transport is supported for version 4, but not for version 3.
Signed-off-by: Leo Li sunpeng.li@amd.com --- include/drm/drm_dp_helper.h | 1 + 1 file changed, 1 insertion(+)
diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h index 3f2715eb965f..05268c51acaa 100644 --- a/include/drm/drm_dp_helper.h +++ b/include/drm/drm_dp_helper.h @@ -360,6 +360,7 @@ struct drm_dp_aux; # define DP_PSR_IS_SUPPORTED 1 # define DP_PSR2_IS_SUPPORTED 2 /* eDP 1.4 */ # define DP_PSR2_WITH_Y_COORD_IS_SUPPORTED 3 /* eDP 1.4a */ +# define DP_PSR2_WITH_ET_IS_SUPPORTED 4 /* eDP 1.5 (eDP 1.4b SCR) */
#define DP_PSR_CAPS 0x071 /* XXX 1.2? */ # define DP_PSR_NO_TRAIN_ON_EXIT 1