regulator_lock_nested(9)

🌸 NAME 🌸

okay so bestie, welcome to regulator_lock_nested(9) from the Kernel API Manual 💅 — this one is literally just “lock a single regulator,” and that’s the whole assignment.

regulator_lock_nested — lock a single regulator. periodt. 🎀

✨ SYNOPSIS ✨

int regulator_lock_nested (struct regulator_dev *rdev , struct
       ww_acquire_ctx *ww_ctx );

🦋 ARGUMENTS 🦋

• rdev — regulator source. yes bestie, the regulator in question 👑
• ww_ctx — w/w mutex acquire context. that’s the context for the w/w mutex, okay? 💅

💖 DESCRIPTION 💖

Here’s the vibe: one task can call this function many times on a single regulator, and its mutex will be locked only once. iconic behavior, honestly. ✨

If a task calling this function is other than the one that initially locked the mutex, it will wait on the mutex. that’s it, that’s the lore. 🫶

🌈 RETURN 🌈

0 on success, or a negative error number on failure. slay when it’s 0, sad little negative number when it’s not 😭

🎀 SEE ALSO 🎀

• Kernel file: ./drivers/regulator/core.c
• regulator_lock(9)
• regulator_unlock(9)
• regulator_lock_two(9)
• regulator_unlock_two(9)
• regulator_unlock_dependent(9)
• regulator_lock_dependent(9)
• set_machine_constraints(9)
• regulator_event_work_fn(9)
• regulator_event_forward_notifier(9)
• register_regulator_event_forwarding(9)
• set_supply(9)
• set_consumer_device_supply(9)
• regulator_dev_lookup(9)
• _regulator_get_common(9)
• regulator_get(9)
• regulator_get_exclusive(9)
• regulator_get_optional(9)
• regulator_put(9)
• regulator_register_supply_alias(9)
• regulator_unregister_supply_alias(9)
• regulator_bulk_register_supply_alias(9)
• regulator_bulk_unregister_supply_alias(9)
• regulator_ena_gpio_ctrl(9)
• _regulator_check_status_enabled(9)
• _regulator_handle_consumer_enable(9)
• _regulator_handle_consumer_disable(9)
• regulator_enable(9)
• regulator_disable(9)
• regulator_force_disable(9)
• regulator_disable_deferred(9)
• regulator_is_enabled(9)
• regulator_count_voltages(9)
• regulator_list_voltage(9)
• regulator_get_regmap(9)
• regulator_get_hardware_vsel_register(9)
• regulator_list_hardware_vsel(9)
• regulator_hardware_enable(9)
• regulator_get_linear_step(9)
• regulator_is_supported_voltage(9)
• regulator_set_voltage(9)
• regulator_set_voltage_time(9)
• regulator_set_voltage_time_sel(9)
• regulator_sync_voltage(9)
• regulator_get_voltage(9)
• regulator_set_current_limit(9)
• regulator_get_current_limit(9)
• regulator_get_unclaimed_power_budget(9)
• regulator_request_power_budget(9)
• regulator_free_power_budget(9)
• regulator_set_mode(9)
• regulator_get_mode(9)
• regulator_get_error_flags(9)
• regulator_set_load(9)
• regulator_allow_bypass(9)
• regulator_register_notifier(9)
• regulator_unregister_notifier(9)
• regulator_bulk_get(9)
• regulator_bulk_enable(9)
• regulator_bulk_disable(9)
• regulator_bulk_force_disable(9)
• regulator_bulk_free(9)
• regulator_handle_critical(9)
• regulator_notifier_call_chain(9)
• regulator_mode_to_status(9)
• regulator_register(9)
• regulator_unregister(9)
• regulator_suspend(9)
• regulator_has_full_constraints(9)
• rdev_get_drvdata(9)
• regulator_get_drvdata(9)
• regulator_set_drvdata(9)
• rdev_get_id(9)

mwah 💋 source/version: ./drivers/regulator · date: October 2026 · page: regulator_lock_nested(9) — okay bye bestie, go lock that single regulator 🌸🦋