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From: dri-devel dri-devel-bounces@lists.freedesktop.org on behalf of sunpeng.li@amd.com sunpeng.li@amd.com Sent: Monday, January 17, 2022 5:33 PM To: amd-gfx@lists.freedesktop.org amd-gfx@lists.freedesktop.org; dri-devel@lists.freedesktop.org dri-devel@lists.freedesktop.org Cc: Li, Sun peng (Leo) Sunpeng.Li@amd.com Subject: [PATCH] drm: Add PSR version 4 macro

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 Reviewed-by: David Zhang dingchen.zhang@amd.com

Thanks David Zhang --- 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 -- 2.34.1