diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dcn10/dcn10_link_encoder.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn10/dcn10_link_encoder.c | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_link_encoder.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_link_encoder.c index d3617d6785a7..7fd385be3f3d 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_link_encoder.c +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_link_encoder.c @@ -90,7 +90,8 @@ static const struct link_encoder_funcs dcn10_lnk_enc_funcs = { .is_dig_enabled = dcn10_is_dig_enabled, .get_dig_frontend = dcn10_get_dig_frontend, .get_dig_mode = dcn10_get_dig_mode, - .destroy = dcn10_link_encoder_destroy + .destroy = dcn10_link_encoder_destroy, + .get_max_link_cap = dcn10_link_encoder_get_max_link_cap, }; static enum bp_result link_transmitter_control( @@ -1370,7 +1371,6 @@ void dcn10_link_encoder_disable_hpd(struct link_encoder *enc) DC_HPD_EN, 0); } - #define AUX_REG(reg)\ (enc10->aux_regs->reg) @@ -1425,3 +1425,19 @@ enum signal_type dcn10_get_dig_mode( return SIGNAL_TYPE_NONE; } +void dcn10_link_encoder_get_max_link_cap(struct link_encoder *enc, + struct dc_link_settings *link_settings) +{ + /* Set Default link settings */ + struct dc_link_settings max_link_cap = {LANE_COUNT_FOUR, LINK_RATE_HIGH, + LINK_SPREAD_05_DOWNSPREAD_30KHZ, false, 0}; + + /* Higher link settings based on feature supported */ + if (enc->features.flags.bits.IS_HBR2_CAPABLE) + max_link_cap.link_rate = LINK_RATE_HIGH2; + + if (enc->features.flags.bits.IS_HBR3_CAPABLE) + max_link_cap.link_rate = LINK_RATE_HIGH3; + + *link_settings = max_link_cap; +} |