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drm/amd/display: Add hook for MST root branch info
This allows DM to do any necessary updates before MST discovery starts. Signed-off-by: Nikola Cornij <nikola.cornij@amd.com> Reviewed-by: Nikola Cornij <Nikola.Cornij@amd.com> Acked-by: Leo Li <sunpeng.li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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3 changed files with 17 additions and 0 deletions
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@ -169,6 +169,11 @@ static void get_payload_table(
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mutex_unlock(&mst_mgr->payload_lock);
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}
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void dm_helpers_dp_update_branch_info(
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struct dc_context *ctx,
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const struct dc_link *link)
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{}
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/*
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* Writes payload allocation table in immediate downstream device.
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*/
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@ -529,6 +529,10 @@ static bool detect_dp(
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if (reason == DETECT_REASON_BOOT)
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boot = true;
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dm_helpers_dp_update_branch_info(
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link->ctx,
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link);
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if (!dm_helpers_dp_mst_start_top_mgr(
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link->ctx,
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link, boot)) {
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@ -40,6 +40,14 @@ enum dc_edid_status dm_helpers_parse_edid_caps(
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const struct dc_edid *edid,
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struct dc_edid_caps *edid_caps);
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/*
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* Update DP branch info
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*/
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void dm_helpers_dp_update_branch_info(
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struct dc_context *ctx,
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const struct dc_link *link);
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/*
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* Writes payload allocation table in immediate downstream device.
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*/
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