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| author | Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> | 2023-05-16 13:54:54 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-08-07 17:14:07 -0400 |
| commit | 76bd34786ebd323cf4c32604cf6166b08aaa3ffa (patch) | |
| tree | a0d8349bab4accc99bf566fb48fb0c0b6782f4f1 | |
| parent | dede1fea4460e734f0ef85875718a036bdd18649 (diff) | |
| download | linux-stable-76bd34786ebd323cf4c32604cf6166b08aaa3ffa.tar.gz linux-stable-76bd34786ebd323cf4c32604cf6166b08aaa3ffa.tar.bz2 linux-stable-76bd34786ebd323cf4c32604cf6166b08aaa3ffa.zip | |
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: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c | 10 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/include/dpcd_defs.h | 2 |
2 files changed, 12 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c index b38ac3ea06b0..237e0ff955f3 100644 --- a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c +++ b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c @@ -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) diff --git a/drivers/gpu/drm/amd/display/include/dpcd_defs.h b/drivers/gpu/drm/amd/display/include/dpcd_defs.h index f72023a296a0..914f28e9f224 100644 --- a/drivers/gpu/drm/amd/display/include/dpcd_defs.h +++ b/drivers/gpu/drm/amd/display/include/dpcd_defs.h @@ -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__ */ |