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drm/amd/display: Read replay data from sink

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Read DP_SINK_PR_PIXEL_DEVIATION_PER_LINE  and
DP_SINK_PR_MAX_NUMBER_OF_DEVIATION_LINE

Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Bhawanpreet Lakha 2023-05-16 13:54:54 -04:00 committed by Alex Deucher
parent dede1fea44
commit 76bd34786e
2 changed files with 12 additions and 0 deletions
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10
drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c
View File

@ -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)

2
drivers/gpu/drm/amd/display/include/dpcd_defs.h
View File

@ -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__ */