Commit 76bd3478 authored by Bhawanpreet Lakha's avatar Bhawanpreet Lakha Committed by Alex Deucher
Browse files

drm/amd/display: Read replay data from sink 



Read DP_SINK_PR_PIXEL_DEVIATION_PER_LINE  and
DP_SINK_PR_MAX_NUMBER_OF_DEVIATION_LINE

Signed-off-by: default avatarBhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Reviewed-by: default avatarHarry Wentland <harry.wentland@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent dede1fea

drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c

+10 −0
Original line number Diff line number Diff line
@@ -2009,6 +2009,16 @@ void detect_edp_sink_caps(struct dc_link *link) 
		core_link_read_dpcd(link, DP_RECEIVER_ALPM_CAP,

			&link->dpcd_caps.alpm_caps.raw,

			sizeof(link->dpcd_caps.alpm_caps.raw));



	/*

	 * Read REPLAY info

	 */

	core_link_read_dpcd(link, DP_SINK_PR_PIXEL_DEVIATION_PER_LINE,

			&link->dpcd_caps.pr_info.pixel_deviation_per_line,

			sizeof(link->dpcd_caps.pr_info.pixel_deviation_per_line));

	core_link_read_dpcd(link, DP_SINK_PR_MAX_NUMBER_OF_DEVIATION_LINE,

			&link->dpcd_caps.pr_info.max_deviation_line,

			sizeof(link->dpcd_caps.pr_info.max_deviation_line));

}



bool dp_get_max_link_enc_cap(const struct dc_link *link, struct dc_link_settings *max_link_enc_cap)

drivers/gpu/drm/amd/display/include/dpcd_defs.h

+2 −0
Original line number Diff line number Diff line
@@ -174,5 +174,7 @@ enum dpcd_psr_sink_states { 
#define DP_SOURCE_BACKLIGHT_ENABLE	    0x32F

#define DP_SOURCE_MINIMUM_HBLANK_SUPPORTED     0x340

#define DP_SINK_PR_REPLAY_STATUS                0x378

#define DP_SINK_PR_PIXEL_DEVIATION_PER_LINE     0x379

#define DP_SINK_PR_MAX_NUMBER_OF_DEVIATION_LINE 0x37A



#endif /* __DAL_DPCD_DEFS_H__ */