diff options
| author | Hersen Wu <hersenxs.wu@amd.com> | 2018-06-15 09:28:34 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-07-13 14:47:14 -0500 |
| commit | 40dd6bd376a4b8617d7cfb1402bafd84bbd79bbd (patch) | |
| tree | 3e95edb94701901fe80d5e5b5089426d17cb9091 /drivers/gpu/drm | |
| parent | 1811a51f6a04adbaa4dba1e7bfe13201c04b9f94 (diff) | |
drm/amd/display: Linux Set/Read link rate and lane count through debugfs
expose dc function to be called by linux dm
Signed-off-by: Hersen Wu <hersenxs.wu@amd.com>
Reviewed-by: Sun peng Li <Sunpeng.Li@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc.c | 65 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc_link.h | 17 |
2 files changed, 82 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index 2a785bbf2b8f..815656a5b6bd 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -384,6 +384,71 @@ void dc_stream_set_static_screen_events(struct dc *dc, dc->hwss.set_static_screen_control(pipes_affected, num_pipes_affected, events); } +void dc_link_set_drive_settings(struct dc *dc, + struct link_training_settings *lt_settings, + const struct dc_link *link) +{ + + int i; + + for (i = 0; i < dc->link_count; i++) { + if (dc->links[i] == link) + break; + } + + if (i >= dc->link_count) + ASSERT_CRITICAL(false); + + dc_link_dp_set_drive_settings(dc->links[i], lt_settings); +} + +void dc_link_perform_link_training(struct dc *dc, + struct dc_link_settings *link_setting, + bool skip_video_pattern) +{ + int i; + + for (i = 0; i < dc->link_count; i++) + dc_link_dp_perform_link_training( + dc->links[i], + link_setting, + skip_video_pattern); +} + +void dc_link_set_preferred_link_settings(struct dc *dc, + struct dc_link_settings *link_setting, + struct dc_link *link) +{ + link->preferred_link_setting = *link_setting; + dp_retrain_link_dp_test(link, link_setting, false); +} + +void dc_link_enable_hpd(const struct dc_link *link) +{ + dc_link_dp_enable_hpd(link); +} + +void dc_link_disable_hpd(const struct dc_link *link) +{ + dc_link_dp_disable_hpd(link); +} + + +void dc_link_set_test_pattern(struct dc_link *link, + enum dp_test_pattern test_pattern, + const struct link_training_settings *p_link_settings, + const unsigned char *p_custom_pattern, + unsigned int cust_pattern_size) +{ + if (link != NULL) + dc_link_dp_set_test_pattern( + link, + test_pattern, + p_link_settings, + p_custom_pattern, + cust_pattern_size); +} + static void destruct(struct dc *dc) { dc_release_state(dc->current_state); diff --git a/drivers/gpu/drm/amd/display/dc/dc_link.h b/drivers/gpu/drm/amd/display/dc/dc_link.h index 8a716baa1203..83eea42452b5 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_link.h +++ b/drivers/gpu/drm/amd/display/dc/dc_link.h @@ -214,6 +214,23 @@ void dc_link_enable_hpd_filter(struct dc_link *link, bool enable); * DPCD access interfaces */ +void dc_link_set_drive_settings(struct dc *dc, + struct link_training_settings *lt_settings, + const struct dc_link *link); +void dc_link_perform_link_training(struct dc *dc, + struct dc_link_settings *link_setting, + bool skip_video_pattern); +void dc_link_set_preferred_link_settings(struct dc *dc, + struct dc_link_settings *link_setting, + struct dc_link *link); +void dc_link_enable_hpd(const struct dc_link *link); +void dc_link_disable_hpd(const struct dc_link *link); +void dc_link_set_test_pattern(struct dc_link *link, + enum dp_test_pattern test_pattern, + const struct link_training_settings *p_link_settings, + const unsigned char *p_custom_pattern, + unsigned int cust_pattern_size); + bool dc_submit_i2c( struct dc *dc, uint32_t link_index, |