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Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dc.h')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h index f2c27964ec1c..181144541657 100644 --- a/drivers/gpu/drm/amd/display/dc/dc.h +++ b/drivers/gpu/drm/amd/display/dc/dc.h @@ -1572,7 +1572,19 @@ struct dc_link { enum engine_id dpia_preferred_eng_id; bool test_pattern_enabled; + /* Pending/Current test pattern are only used to perform and track + * FIXED_VS retimer test pattern/lane adjustment override state. + * Pending allows link HWSS to differentiate PHY vs non-PHY pattern, + * to perform specific lane adjust overrides before setting certain + * PHY test patterns. In cases when lane adjust and set test pattern + * calls are not performed atomically (i.e. performing link training), + * pending_test_pattern will be invalid or contain a non-PHY test pattern + * and current_test_pattern will contain required context for any future + * set pattern/set lane adjust to transition between override state(s). + * */ enum dp_test_pattern current_test_pattern; + enum dp_test_pattern pending_test_pattern; + union compliance_test_state compliance_test_state; void *priv; |