drm_dp_remove_payload_part2(9)

💅 drm_dp_remove_payload_part2(9) — the Kernel API Manual, bestie edition 🎀

okay so you're in the kernel API manual, section 9, and today's main character is drm_dp_remove_payload_part2 — yes the part2, don't @ me, part1 exists and she's in SEE ALSO 💖

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✨ NAME ✨

drm_dp_remove_payload_part2 — Remove an MST payload locally 🫶

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🌸 SYNOPSIS 🌸

void drm_dp_remove_payload_part2 (struct drm_dp_mst_topology_mgr *mgr ,
struct drm_dp_mst_topology_state *mst_state , const struct
drm_dp_mst_atomic_payload *old_payload , struct
drm_dp_mst_atomic_payload *new_payload );

like, it returns void, she gives nothing back and honestly? iconic 💅

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🦋 ARGUMENTS 🦋

• mgr — the Manager to use. the boss of the whole operation 👑
• mst_state — The MST atomic state ✨
• old_payload — The payload with its old state 🍓
• new_payload — The payload with its latest state 🌈

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💜 DESCRIPTION 💜

so here's the vibe: this function updates the starting time slots of all the other payloads — the ones that would've been shifted towards the start of the payload ID table literally just because a payload got removed. no cap, that shuffle is real 😭

Driver tea ☕: your driver should call this function whenever it removes a payload in its HW. that's the assignment, bestie, don't skip it.

and the important bit — this is independent to the result of payload allocation/deallocation at branch devices along the virtual channel. like, separate concerns, separate vibes 🧚 periodt.

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🔥 SEE ALSO 🔥

Kernel file ./drivers/gpu/drm/display/drm_dp_mst_topology.c — go read her, she ate 👑

then the whole friend group, fr fr:

• dp mst helper(9)
• Branch device and port refcounting(9)
• drm_dp_mst_get_mstb_malloc(9)
• drm_dp_mst_put_mstb_malloc(9)
• drm_dp_mst_get_port_malloc(9)
• drm_dp_mst_put_port_malloc(9)
• drm_dp_mst_topology_try_get_mstb(9)
• drm_dp_mst_topology_get_mstb(9)
• drm_dp_mst_topology_put_mstb(9)
• drm_dp_mst_topology_try_get_port(9)
• drm_dp_mst_topology_get_port(9)
• drm_dp_mst_topology_put_port(9)
• drm_dp_mst_dpcd_read(9)
• drm_dp_mst_dpcd_write(9)
• drm_dp_mst_connector_late_register(9)
• drm_dp_mst_connector_early_unregister(9)
• drm_dp_add_payload_part1(9)
• drm_dp_remove_payload_part1(9)
• drm_dp_add_payload_part2(9)
• drm_dp_get_vc_payload_bw(9)
• drm_dp_read_mst_cap(9)
• drm_dp_mst_topology_mgr_set_mst(9)
• drm_dp_mst_topology_queue_probe(9)
• drm_dp_mst_topology_mgr_suspend(9)
• drm_dp_mst_topology_mgr_resume(9)
• drm_dp_mst_hpd_irq_handle_event(9)
• drm_dp_mst_hpd_irq_send_new_request(9)
• drm_dp_mst_detect_port(9)
• drm_dp_mst_edid_read(9)
• drm_dp_mst_get_edid(9)
• drm_dp_atomic_find_time_slots(9)
• drm_dp_atomic_release_time_slots(9)
• drm_dp_mst_atomic_setup_commit(9)
• drm_dp_mst_atomic_wait_for_dependencies(9)
• drm_dp_mst_root_conn_atomic_check(9)
• drm_dp_mst_update_slots(9)
• drm_dp_check_act_status(9)
• drm_dp_calc_pbn_mode(9)
• drm_dp_mst_dump_topology(9)
• drm_dp_mst_port_downstream_of_parent(9)
• drm_dp_mst_add_affected_dsc_crtcs(9)
• drm_dp_mst_atomic_enable_dsc(9)
• drm_dp_mst_atomic_check_mgr(9)
• drm_dp_mst_atomic_check(9)
• drm_atomic_get_mst_topology_state(9)
• drm_atomic_get_old_mst_topology_state(9)
• drm_atomic_get_new_mst_topology_state(9)
• drm_dp_mst_topology_mgr_init(9)
• drm_dp_mst_topology_mgr_destroy(9)
• drm_dp_mst_register_i2c_bus(9)
• drm_dp_mst_unregister_i2c_bus(9)
• drm_dp_mst_is_virtual_dpcd(9)
• drm_dp_mst_aux_for_parent(9)
• drm_dp_mst_dsc_aux_for_port(9)

like, that's the whole group chat and every single one of them showed up 💀💖

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okay that's the page!! she lives in ./drivers/gpu/drm/display, she's dated October 2026, and she answers to drm_dp_remove_payload_part2(9) — mwah, slay, go remove some payloads responsibly 🫶✨🎀