devm_clk_ge...ed_with_rate(9)

📦 version 7.3.1, in nixpkgs unstable

💅 devm_clk_get_optional_enabled_with_rate(9) 💅

okay so bestie, welcome to the Kernel API Manual ✨ — this is the one-stop glow-up page for devm_clk_get_optional_enabled_with_rate, which is literally three clock things wearing a trench coat: devm_clk_get_optional() + clk_set_rate() + clk_prepare_enable(). no cap, it's giving "convenience wrapper, but make it fashion" 🎀

🌸 NAME 🌸

devm_clk_get_optional_enabled_with_rate — the combo deal: devm_clk_get_optional() plus clk_set_rate() plus clk_prepare_enable(). three icons, one function 🫶

✨ SYNOPSIS ✨

struct clk * devm_clk_get_optional_enabled_with_rate (struct device *dev
, const char *id , unsigned long rate );

🎀 ARGUMENTS 🎀

  • dev — the device that's acting as the clock "consumer" (yes, the quotes are canon, it's a whole role ok)
  • id — the clock consumer ID, aka this clock's little name tag 🏷️
  • rate — the new clock rate you're manifesting

💤 CONTEXT 💤

May sleep. so like... it's allowed to nap 😴 don't call it from somewhere that can't handle sleeping, bestie, that's the whole vibe check.

🔥 RETURN 🔥

You get back a struct clk that corresponds to the clock producer — or a valid IS_ERR condition containing errno 😭 (that's the "something went wrong" energy, check it with IS_ERR before you get attached).

The implementation uses dev and id to determine the clock consumer, and thereby the clock producer. iykyk 🔍

If no such clk is found, it returns NULL, which serves as a dummy clk — like a stand-in extra in the background of your movie 🎬. That's the only difference compared to devm_clk_get_enabled. periodt.

🌈 DESCRIPTION 🌈

The returned clk (if valid) is prepared ✅ and enabled ✅ and rate was set ✅. all three, done, slay.

The clock will automatically be disabled, unprepared and freed when the device is unbound from the bus. so it cleans up after itself — literally the dream 🧚✨ no manual clk_put chore era for you.

👑 SEE ALSO 👑

Kernel file ./include/linux/clk.h 💖 and the whole clock friend group:

that's the whole page, bestie 🦋 this one lives in ./include/linux, it's the October 2026 edition of the Kernel API Manual, and it's filed under devm_clk_get_optional_enabled_with_rate(9) — go be iconic with your clocks 💜⭐

📦 where this page comes from