diff options
| author | Wenjing Liu <Wenjing.Liu@amd.com> | 2019-03-23 00:33:46 +0100 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-04-10 20:53:28 +0200 |
| commit | 7ee3769a37d3f9d7352bb0182b0bf3a2beabe523 (patch) | |
| tree | a8eefa4700d1e114033fc4a264a28229a88a90cf /drivers/gpu | |
| parent | drm/amd/display: remove min reduction for abm 2.2 level 3 (diff) | |
| download | linux-7ee3769a37d3f9d7352bb0182b0bf3a2beabe523.tar.xz linux-7ee3769a37d3f9d7352bb0182b0bf3a2beabe523.zip | |
drm/amd/display: prefer preferred link cap over verified link settings
[why]
when preferred link cap is set, we should always use
preferred in all validation.
we should not use preferred for some validation but use
verified for others.
[how]
create getter function that gets verified link cap.
if preferred is set, return preferred link settings instead.
Signed-off-by: Wenjing Liu <Wenjing.Liu@amd.com>
Reviewed-by: Nikola Cornij <Nikola.Cornij@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc.c | 9 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc_link.h | 3 |
3 files changed, 13 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index 51b85a8ef9f2..2b1cd8bd5e03 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -597,6 +597,15 @@ uint32_t dc_link_bandwidth_kbps( } +const struct dc_link_settings *dc_link_get_verified_link_cap( + const struct dc_link *link) +{ + if (link->preferred_link_setting.lane_count != LANE_COUNT_UNKNOWN && + link->preferred_link_setting.link_rate != LINK_RATE_UNKNOWN) + return &link->preferred_link_setting; + return &link->verified_link_cap; +} + static void destruct(struct dc *dc) { dc_release_state(dc->current_state); 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 0d8ef8f7cb58..acb4f829e042 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 @@ -1549,7 +1549,7 @@ bool dp_validate_mode_timing( return true; /* We always use verified link settings */ - link_setting = &link->verified_link_cap; + link_setting = dc_link_get_verified_link_cap(link); /* TODO: DYNAMIC_VALIDATION needs to be implemented */ /*if (flags.DYNAMIC_VALIDATION == 1 && diff --git a/drivers/gpu/drm/amd/display/dc/dc_link.h b/drivers/gpu/drm/amd/display/dc/dc_link.h index 7b61fb7b1bb7..4e26d6e93b31 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_link.h +++ b/drivers/gpu/drm/amd/display/dc/dc_link.h @@ -250,6 +250,9 @@ uint32_t dc_link_bandwidth_kbps( const struct dc_link *link, const struct dc_link_settings *link_setting); +const struct dc_link_settings *dc_link_get_verified_link_cap( + const struct dc_link *link); + bool dc_submit_i2c( struct dc *dc, uint32_t link_index, |