devm_pse_irq_helper(9)

💅 devm_pse_irq_helper(9) — like, the Kernel API Manual edition 🎀

okay bestie, so this one's from the Kernel API Manual and it's the page for devm_pse_irq_helper, which is literally "Register IRQ based PSE event notifier" ✨ That's the whole vibe. It's giving "one little registration function that handles a whole interrupt situation for you" 🦋

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✨ NAME ✨

devm_pse_irq_helper — Register IRQ based PSE event notifier 💖

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🌸 SYNOPSIS 🌸

int devm_pse_irq_helper (struct pse_controller_dev *pcdev , int irq ,
int irq_flags , const struct pse_irq_desc *d );

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🎀 ARGUMENTS 🎀

• pcdev — a pointer to the PSE 👑 like, this is your controller device, the main character
• irq — the irq value to be passed to request_irq 🔥 yes, that request_irq, bestie
• irq_flags — the flags to be passed to request_irq 🌈 again, straight through to request_irq
• d — PSE interrupt description 🧚 the descriptor that says what this interrupt's deal is

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⭐ RETURN ⭐

0 on success and errno on failure 💀 (so check it, fr fr — don't just vibe past the return value)

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💜 SEE ALSO 💜

• Kernel file ./drivers/net/pse-pd/pse_core.c 📁 — yes, the source of truth, go read it
• struct pse_control(9)
• struct pse_power_domain(9)
• of_load_pse_pi_pairsets(9)
• of_load_pse_pis(9)
• pse_control_find_by_id(9)
• pse_control_get_netdev(9)
• pse_pi_is_hw_enabled(9)
• pse_pi_is_admin_enable_pending(9)
• pse_pw_d_retry_power_delivery(9)
• pse_pw_d_is_sw_pw_control(9)
• pse_pi_deallocate_pw_budget(9)
• _pse_pi_disable(9)
• pse_disable_pi_pol(9)
• pse_disable_pi_prio(9)
• pse_pi_allocate_pw_budget_static_prio(9)
• pse_pi_allocate_pw_budget(9)
• _pse_pi_delivery_power_sw_pw_ctrl(9)
• pse_flush_pw_ds(9)
• devm_pse_alloc_pw_d(9)
• pse_register_pw_ds(9)
• pse_send_ntf_worker(9)
• pse_controller_register(9)
• pse_controller_unregister(9)
• devm_pse_controller_register(9)
• pse_to_regulator_notifs(9)
• pse_set_config_isr(9)
• pse_isr(9)
• pse_control_put(9)
• of_pse_match_pi(9)
• psec_id_xlate(9)
• pse_get_sw_admin_state(9)
• pse_ethtool_get_status(9)
• pse_ethtool_set_config(9)
• pse_pi_update_pw_budget(9)
• pse_ethtool_set_pw_limit(9)
• pse_ethtool_set_prio(9)

ok that's a lot of cross-refs and I know it looks like a wall, but every single one is there on purpose — that's the whole PSE/pse-pd friend group and you're gonna wanna meet all of them eventually 🫶 iykyk

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and that's the page!! 🍓 written from ./drivers/net/pse-pd, dated October 2026, and signed off as devm_pse_irq_helper(9) — mwah, slay, periodt 💅👑