Merge tag 'amd-drm-next-5.14-2021-05-21' of https://gitlab.freedesktop.org/agd5f...

[platform/kernel/linux-starfive.git] / drivers / gpu / drm / amd / display / dc / core / dc_link_dp.c

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 85c3608..9e08410 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
@@ -1969,6 +1969,24 @@ bool dc_link_dp_sync_lt_end(struct dc_link *link, bool link_down)
        return true;
 }
 
+bool dc_link_dp_get_max_link_enc_cap(const struct dc_link *link, struct dc_link_settings *max_link_enc_cap)
+{
+       if (!max_link_enc_cap) {
+               DC_LOG_ERROR("%s: Could not return max link encoder caps", __func__);
+               return false;
+       }
+
+       if (link->link_enc->funcs->get_max_link_cap) {
+               link->link_enc->funcs->get_max_link_cap(link->link_enc, max_link_enc_cap);
+               return true;
+       }
+
+       DC_LOG_ERROR("%s: Max link encoder caps unknown", __func__);
+       max_link_enc_cap->lane_count = 1;
+       max_link_enc_cap->link_rate = 6;
+       return false;
+}
+
 static struct dc_link_settings get_max_link_cap(struct dc_link *link)
 {
        struct dc_link_settings max_link_cap = {0};