of_get_requ...rmance_state(9)

🌸 NAME 🌸

Okay so this page is of_get_required_opp_performance_state(9) from the Kernel API Manual, and the name is doing exactly what it says on the tin: search for a required OPP and return its performance state. Iconic. 💅

✨ SYNOPSIS ✨

int of_get_required_opp_performance_state (struct device_node *np , int
       index );

🎀 ARGUMENTS 🎀

• np — the Node that contains the "required-opps" property. That's the one we're digging through, bestie. 🫶
• index — the index of the phandle to parse. Yes, index tells us which phandle we're looking at. ✨

🦋 DESCRIPTION 🦋

It returns the performance state of the OPP pointed out by the "required-opps" property at index in np. That's the whole plot, no side quests. 💖

💅 RETURN 💅

Zero or positive performance state on success, otherwise negative value on errors. So: success = zero or positive, errors = negative. Ngl, very straightforward. 👑

🌈 SEE ALSO 🌈

Kernel file ./drivers/opp/of.c, plus these besties:

• dev_pm_opp_of_remove_table(9)
• _opp_add_static_v2(9)
• devm_pm_opp_of_add_table(9)
• dev_pm_opp_of_add_table(9)
• dev_pm_opp_of_add_table_indexed(9)
• devm_pm_opp_of_add_table_indexed(9)
• dev_pm_opp_of_cpumask_remove_table(9)
• dev_pm_opp_of_cpumask_add_table(9)
• dev_pm_opp_of_get_sharing_cpus(9)
• dev_pm_opp_of_has_required_opp(9)
• dev_pm_opp_get_of_node(9)
• dev_pm_opp_calc_power(9)
• dev_pm_opp_of_register_em(9)

That's the whole page, bestie 🫶 — source/version ./drivers/opp, date October 2026, and the footer signs it of_get_requ...rmance_state(9). Catch you in the next manpage! 💖✨