diff options
| author | Huang, ChiaWen <[email protected]> | 2021-11-04 16:52:03 -0400 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2021-11-17 16:58:07 -0500 |
| commit | 64266f0a45c8323861d3756cbe3dc419e973917c (patch) | |
| tree | 9a10f2d92c814c69efb5dd4508475bdd422dbf86 | |
| parent | 426b4c4fe52c6983b40f4d904a4ef430409f315c (diff) | |
drm/amd/display: use link_rate_set above DPCD 1.3 (#1527)
[Why & How]
According to eDP spec, DPCD 1.3 is only for eDP DPCD v1.4
In dpcd_set_link_settings function, the driver is just above v1.3
Reviewed-by: Wenjing Liu <[email protected]>
Acked-by: Anson Jacob <[email protected]>
Tested-by: Daniel Wheeler <[email protected]>
Signed-off-by: ChiawenHuang <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c index cb7bf9148904..b21f61e89cba 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c @@ -430,7 +430,7 @@ enum dc_status dpcd_set_link_settings( status = core_link_write_dpcd(link, DP_LANE_COUNT_SET, &lane_count_set.raw, 1); - if (link->dpcd_caps.dpcd_rev.raw >= DPCD_REV_14 && + if (link->dpcd_caps.dpcd_rev.raw >= DPCD_REV_13 && lt_settings->link_settings.use_link_rate_set == true) { rate = 0; /* WA for some MUX chips that will power down with eDP and lose supported |