diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/link/link_detection.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/link/link_detection.c | 32 |
1 files changed, 14 insertions, 18 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/link/link_detection.c b/drivers/gpu/drm/amd/display/dc/link/link_detection.c index e026c728042a..827b630daf49 100644 --- a/drivers/gpu/drm/amd/display/dc/link/link_detection.c +++ b/drivers/gpu/drm/amd/display/dc/link/link_detection.c @@ -593,8 +593,9 @@ static bool detect_dp(struct dc_link *link, if (sink_caps->transaction_type == DDC_TRANSACTION_TYPE_I2C_OVER_AUX) { sink_caps->signal = SIGNAL_TYPE_DISPLAY_PORT; - if (!detect_dp_sink_caps(link)) + if (!detect_dp_sink_caps(link)) { return false; + } if (is_dp_branch_device(link)) /* DP SST branch */ @@ -611,6 +612,7 @@ static bool detect_dp(struct dc_link *link, link->dpcd_caps.dongle_type = sink_caps->dongle_type; link->dpcd_caps.is_dongle_type_one = sink_caps->is_dongle_type_one; link->dpcd_caps.dpcd_rev.raw = 0; + link->dpcd_caps.usb4_dp_tun_info.dp_tun_cap.raw = 0; } return true; @@ -816,7 +818,10 @@ static bool should_verify_link_capability_destructively(struct dc_link *link, { bool destrictive = false; struct dc_link_settings max_link_cap; - bool is_link_enc_unavailable = link->link_enc && + bool is_link_enc_unavailable = false; + + if (!link->dc->config.unify_link_enc_assignment) + is_link_enc_unavailable = link->link_enc && link->dc->res_pool->funcs->link_encs_assign && !link_enc_cfg_is_link_enc_avail( link->ctx->dc, @@ -829,7 +834,8 @@ static bool should_verify_link_capability_destructively(struct dc_link *link, if (link->dc->debug.skip_detection_link_training || dc_is_embedded_signal(link->local_sink->sink_signal) || - link->ep_type == DISPLAY_ENDPOINT_USB4_DPIA) { + (link->ep_type == DISPLAY_ENDPOINT_USB4_DPIA && + !link->dc->config.enable_dpia_pre_training)) { destrictive = false; } else if (link_dp_get_encoding_format(&max_link_cap) == DP_8b_10b_ENCODING) { @@ -1003,21 +1009,11 @@ static bool detect_link_and_local_sink(struct dc_link *link, link->reported_link_cap.link_rate > LINK_RATE_HIGH3) link->reported_link_cap.link_rate = LINK_RATE_HIGH3; - /* - * If this is DP over USB4 link then we need to: - * - Enable BW ALLOC support on DPtx if applicable - */ - if (dc->config.usb4_bw_alloc_support) { - if (link_dp_dpia_set_dptx_usb4_bw_alloc_support(link)) { - /* update with non reduced link cap if bw allocation mode is supported */ - if (link->dpia_bw_alloc_config.nrd_max_link_rate && - link->dpia_bw_alloc_config.nrd_max_lane_count) { - link->reported_link_cap.link_rate = - link->dpia_bw_alloc_config.nrd_max_link_rate; - link->reported_link_cap.lane_count = - link->dpia_bw_alloc_config.nrd_max_lane_count; - } - } + if (link->dpcd_caps.usb4_dp_tun_info.dp_tun_cap.bits.dp_tunneling + && link->dpcd_caps.usb4_dp_tun_info.dp_tun_cap.bits.dpia_bw_alloc + && link->dpcd_caps.usb4_dp_tun_info.driver_bw_cap.bits.driver_bw_alloc_support) { + if (link_dpia_enable_usb4_dp_bw_alloc_mode(link) == false) + link->dpcd_caps.usb4_dp_tun_info.dp_tun_cap.bits.dpia_bw_alloc = false; } break; } |