diff options
| author | Tony Cheng <tony.cheng@amd.com> | 2018-07-11 15:31:24 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-07-24 15:15:14 -0500 |
| commit | aafded888514ba2c6b613548081dedf289a71287 (patch) | |
| tree | 15ccb8eef08bc0129e1760a3dac9d515e7d5a214 /drivers | |
| parent | 85344e75d0d18094789ce84f88e1c5762c74115d (diff) | |
| download | linux-aafded888514ba2c6b613548081dedf289a71287.tar.bz2 | |
drm/amd/display: allow diags to skip initial link training
[why]
diag specify what the full config and is only concerned about pass/fail at the end
having inter-op code like verifiying we can actually train at reported link rate
slows down diag test and add complexity we don't need
[how]
add dc_debug option to skip capability link trianing
also remove hbr in function name as verify is not specific to hbr
Signed-off-by: Tony Cheng <tony.cheng@amd.com>
Reviewed-by: Ken Chalmers <ken.chalmers@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 7 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/inc/dc_link_dp.h | 2 |
4 files changed, 9 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c index a4429c90c60c..388a0635c38d 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c @@ -760,7 +760,7 @@ bool dc_link_detect(struct dc_link *link, enum dc_detect_reason reason) */ /* deal with non-mst cases */ - dp_hbr_verify_link_cap(link, &link->reported_link_cap); + dp_verify_link_cap(link, &link->reported_link_cap); } /* HDMI-DVI Dongle */ 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 474cd3e01752..b8e6db4382ec 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 @@ -1086,7 +1086,7 @@ static struct dc_link_settings get_max_link_cap(struct dc_link *link) return max_link_cap; } -bool dp_hbr_verify_link_cap( +bool dp_verify_link_cap( struct dc_link *link, struct dc_link_settings *known_limit_link_setting) { @@ -1101,6 +1101,11 @@ bool dp_hbr_verify_link_cap( enum clock_source_id dp_cs_id = CLOCK_SOURCE_ID_EXTERNAL; enum link_training_result status; + if (link->dc->debug.skip_detection_link_training) { + link->verified_link_cap = *known_limit_link_setting; + return true; + } + success = false; skip_link_training = false; diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h index ceb4c3725893..5e2a2acb5ad6 100644 --- a/drivers/gpu/drm/amd/display/dc/dc.h +++ b/drivers/gpu/drm/amd/display/dc/dc.h @@ -258,6 +258,7 @@ struct dc_debug { bool avoid_vbios_exec_table; bool scl_reset_length10; bool hdmi20_disable; + bool skip_detection_link_training; struct { uint32_t ltFailCount; diff --git a/drivers/gpu/drm/amd/display/dc/inc/dc_link_dp.h b/drivers/gpu/drm/amd/display/dc/inc/dc_link_dp.h index 2f783c650084..697b5ee73845 100644 --- a/drivers/gpu/drm/amd/display/dc/inc/dc_link_dp.h +++ b/drivers/gpu/drm/amd/display/dc/inc/dc_link_dp.h @@ -33,7 +33,7 @@ struct dc_link; struct dc_stream_state; struct dc_link_settings; -bool dp_hbr_verify_link_cap( +bool dp_verify_link_cap( struct dc_link *link, struct dc_link_settings *known_limit_link_setting); |