_opp_set_availability(9)

💖 NAME 💖

okay so bestie, meet _opp_set_availability(9) from the Kernel API Manual — it's the lil helper that sets the availability of an opp. 💅✨

🎀 SYNOPSIS 🎀

int _opp_set_availability (struct device *dev , unsigned long freq ,
       bool availability_req );

🌸 ARGUMENTS 🌸

• dev — the device we're doing this operation for 🫶
• freq — the OPP frequency whose availability we're modifying ⚡
• availability_req — the availability status requested for this opp 👑

🦋 DESCRIPTION 🦋

Set the availability of an OPP. opp_{enable,disable} share a common logic, and that common logic is isolated right here. no cap, that's the whole job. 💖

⭐ RETURN ⭐

• -EINVAL — bad pointers 🙈
• -ENOMEM — no memory available for the copy operation 💀
• 0 — returned if no modification was done OR the modification was successful ✨

👑 SEE ALSO 👑

Kernel file ./drivers/opp/core.c, plus the whole reference squad:

• _find_opp_table(9)
• dev_pm_opp_get_bw(9)
• dev_pm_opp_get_voltage(9)
• dev_pm_opp_get_supplies(9)
• dev_pm_opp_get_power(9)
• dev_pm_opp_get_freq_indexed(9)
• dev_pm_opp_get_level(9)
• dev_pm_opp_get_required_pstate(9)
• dev_pm_opp_is_turbo(9)
• dev_pm_opp_get_max_clock_latency(9)
• dev_pm_opp_get_max_volt_latency(9)
• dev_pm_opp_get_max_transition_latency(9)
• dev_pm_opp_get_suspend_opp_freq(9)
• dev_pm_opp_get_opp_count(9)
• dev_pm_opp_find_freq_exact(9)
• dev_pm_opp_find_key_exact(9)
• dev_pm_opp_find_freq_exact_indexed(9)
• dev_pm_opp_find_freq_ceil(9)
• dev_pm_opp_find_freq_ceil_indexed(9)
• dev_pm_opp_find_freq_floor(9)
• dev_pm_opp_find_freq_floor_indexed(9)
• dev_pm_opp_find_level_exact(9)
• dev_pm_opp_find_level_ceil(9)
• dev_pm_opp_find_level_floor(9)
• dev_pm_opp_find_bw_ceil(9)
• dev_pm_opp_find_bw_floor(9)
• dev_pm_opp_set_rate(9)
• dev_pm_opp_set_opp(9)
• dev_pm_opp_remove(9)
• dev_pm_opp_remove_all_dynamic(9)
• _opp_add_v1(9)
• dev_pm_opp_set_config(9)
• dev_pm_opp_clear_config(9)
• devm_pm_opp_set_config(9)
• dev_pm_opp_xlate_required_opp(9)
• dev_pm_opp_xlate_performance_state(9)
• dev_pm_opp_add_dynamic(9)
• dev_pm_opp_adjust_voltage(9)
• dev_pm_opp_sync_regulators(9)
• dev_pm_opp_enable(9)
• dev_pm_opp_disable(9)
• dev_pm_opp_register_notifier(9)
• dev_pm_opp_unregister_notifier(9)
• dev_pm_opp_remove_table(9)

made with ./drivers/opp energy • October 2026 • _opp_set_availability(9) 💜