[AMD Official Use Only] Hi Paul and Harry, Thanks for reviewing the patch and commit msg has been revised as per your comments in the v2. From: Paul Menzel <pmenzel@xxxxxxxxxxxxx> Sent: Friday, April 1, 2022 1:46 AM To: Zhang, Dingchen (David) <Dingchen.Zhang@xxxxxxx> Cc: amd-gfx@xxxxxxxxxxxxxxxxxxxxx <amd-gfx@xxxxxxxxxxxxxxxxxxxxx>; dri-devel@xxxxxxxxxxxxxxxxxxxxx <dri-devel@xxxxxxxxxxxxxxxxxxxxx>; Wang, Chao-kai (Stylon) <Stylon.Wang@xxxxxxx>; airlied@xxxxxxxx <airlied@xxxxxxxx>; Li, Sun peng (Leo) <Sunpeng.Li@xxxxxxx>; Wentland, Harry <Harry.Wentland@xxxxxxx>; Zhuo, Qingqing (Lillian) <Qingqing.Zhuo@xxxxxxx>; Siqueira, Rodrigo <Rodrigo.Siqueira@xxxxxxx>; Li, Roman <Roman.Li@xxxxxxx>; Chiu, Solomon <Solomon.Chiu@xxxxxxx>; Zuo, Jerry <Jerry.Zuo@xxxxxxx>; Pillai, Aurabindo <Aurabindo.Pillai@xxxxxxx>; daniel@xxxxxxxx <daniel@xxxxxxxx>; Lin, Wayne <Wayne.Lin@xxxxxxx>; Lakha, Bhawanpreet <Bhawanpreet.Lakha@xxxxxxx>; Gutierrez, Agustin <Agustin.Gutierrez@xxxxxxx>; Kotarac, Pavle <Pavle.Kotarac@xxxxxxx> Subject: Re: [PATCH 1/1] drm: add PSR2 support and capability definition as per eDP 1.5 Dear David, Thank you for your patch. Am 31.03.22 um 19:26 schrieb David Zhang: > [why & how] > In eDP 1.5 spec, some new DPCD bit fileds are defined for PSR-SU > support. You could be specific by using the exact number two. Maybe: As per eDP 1.5 specification, add the two DPCD bit fields below for PSR-SU support: 1. DP_PSR2_WITH_Y_COORD_ET_SUPPORTED 2. DP_PSR2_SU_AUX_FRAME_SYNC_NOT_NEEDED Kind regards, Paul > Signed-off-by: David Zhang <dingchen.zhang@xxxxxxx> > --- > include/drm/drm_dp_helper.h | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h > index 30359e434c3f..ac7b7571ae66 100644 > --- a/include/drm/drm_dp_helper.h > +++ b/include/drm/drm_dp_helper.h > @@ -361,6 +361,7 @@ struct drm_panel; > # 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_Y_COORD_ET_SUPPORTED 4 /* eDP 1.5, adopted eDP 1.4b SCR */ > > #define DP_PSR_CAPS 0x071 /* XXX 1.2? */ > # define DP_PSR_NO_TRAIN_ON_EXIT 1 > @@ -375,6 +376,7 @@ struct drm_panel; > # define DP_PSR_SETUP_TIME_SHIFT 1 > # define DP_PSR2_SU_Y_COORDINATE_REQUIRED (1 << 4) /* eDP 1.4a */ > # define DP_PSR2_SU_GRANULARITY_REQUIRED (1 << 5) /* eDP 1.4b */ > +# define DP_PSR2_SU_AUX_FRAME_SYNC_NOT_NEEDED (1 << 6)/* eDP 1.5, adopted eDP 1.4b SCR */ > > #define DP_PSR2_SU_X_GRANULARITY 0x072 /* eDP 1.4b */ > #define DP_PSR2_SU_Y_GRANULARITY 0x074 /* eDP 1.4b */
