pinctrl_register_mappings(9)

💅 pinctrl_register_mappings(9) — from the Kernel API Manual, bestie ✨

okay so. picture this: you're deep in the kernel, you've got a whole table of pin mappings, and literally nobody knows about them yet. bestie, that's the whole plot. this page is the pinctrl_register_mappings origin story and honestly it's giving main character energy 🎀

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✨ NAME ✨

pinctrl_register_mappings — register a set of pin controller mappings 🦋

like, you show up with your mappings table and the pin control core is like "say less, they're mine now."

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🌸 SYNOPSIS 🌸

int pinctrl_register_mappings (const struct pinctrl_map *maps , unsigned
       int num_maps );

the way that function signature ate and left no crumbs 🔥 returns an int, bestie — don't forget that part.

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💖 ARGUMENTS 💖

• maps — the pincontrol mappings table to register. and here's the tea 🫖: the pinctrl-core keeps a reference to the passed in maps, so they should _not_ be marked with __initdata. like, no cap, if you mark them with __initdata you're setting yourself up for a bad time. the underscores around _not_ are there because the kernel devs are dramatic and correct 💀
• num_maps — the number of maps in the mapping table. just a count. a little integer doing its little job 😌 count your maps, bestie, don't guess.

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🔥 SEE ALSO 🔥

kernel file ./drivers/pinctrl/core.c — that's the icon, the legend, the moment 👑

and now the full roll call, no one left behind, every single one of them 💜:

• pinctrl_provide_dummies(9)
• get_pinctrl_dev_from_devname(9)
• pin_get_from_name(9)
• pin_get_name(9)
• gpio_to_pin(9)
• pinctrl_match_gpio_range(9)
• pinctrl_ready_for_gpio_range(9)
• pinctrl_get_device_gpio_range(9)
• pinctrl_add_gpio_range(9)
• pinctrl_find_gpio_range_from_pin(9)
• pinctrl_remove_gpio_range(9)
• pinctrl_generic_get_group_count(9)
• pinctrl_generic_get_group_name(9)
• pinctrl_generic_get_group_pins(9)
• pinctrl_generic_get_group(9)
• pinctrl_generic_add_group(9)
• pinctrl_generic_remove_group(9)
• pinctrl_generic_free_groups(9)
• pinctrl_get_group_selector(9)
• pinctrl_gpio_request(9)
• pinctrl_gpio_free(9)
• pinctrl_gpio_direction_input(9)
• pinctrl_gpio_direction_output(9)
• pinctrl_gpio_set_config(9)
• pinctrl_gpio_get_config(9)
• pinctrl_get(9)
• pinctrl_release(9)
• pinctrl_put(9)
• pinctrl_lookup_state(9)
• pinctrl_commit_state(9)
• pinctrl_select_state(9)
• devm_pinctrl_get(9)
• devm_pinctrl_put(9)
• pinctrl_unregister_mappings(9)
• devm_pinctrl_register_mappings(9)
• pinctrl_force_sleep(9)
• pinctrl_force_default(9)
• pinctrl_init_done(9)
• pinctrl_select_default_state(9)
• pinctrl_pm_select_default_state(9)
• pinctrl_pm_select_init_state(9)
• pinctrl_pm_select_sleep_state(9)
• pinctrl_pm_select_idle_state(9)
• pinctrl_init_controller(9)
• pinctrl_register(9)
• pinctrl_register_and_init(9)
• pinctrl_unregister(9)
• devm_pinctrl_register(9)
• devm_pinctrl_register_and_init(9)

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🫶 friendly reminder before you go: maps stays referenced by the core, so _not_ __initdata. iykyk. that's the whole vibe check of this page and it passed 💅

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and that's the page, bestie 💖 straight out of ./drivers/pinctrl, dated October 2026, and yeah — it's pinctrl_register_mappings(9) all the way down. slay 🌈✨🎀