clkdm_clk_disable(9)

📦 version 7.3.1, in nixpkgs unstable

clkdm_clk_disable(9) 💅

okay bestie, welcome to the clkdm_clk_disable page from the Kernel API Manual — lowercase girlies, this one's a function, not a command, so buckle up 🎀

✨ NAME ✨

clkdm_clk_disable — remove an enabled downstream clock from this clkdm 🫶

🌸 SYNOPSIS 🌸

int clkdm_clk_disable (struct clockdomain *clkdm , struct clk *clk );

like, that's the whole vibe. two args, one int coming back at you ✨

🦋 ARGUMENTS 🦋

  • clkdm — a struct clockdomain * 🏠 the clockdomain we're messing with, main character energy
  • clk — a struct clk * of the disabled downstream clock 🕰️ yes it's the disabled one, that's not a typo, that's the whole point

🔥 DESCRIPTION 🔥

so here's the tea ☕ — when clk gets disabled, you decrement the usecount of this clockdomain, clkdm. literally that's it, that's the job. it's intended to be called by clk_disable code, so like, don't just call it because you feel like it, iykyk 💅

and if the clockdomain usecount goes all the way to 0? two possibilities depending on the vibe:

  • software-supervised mode → put the clockdomain to sleep 😴
  • hardware-supervised mode → remove the clkdm autodependencies 🔗

now the return values, and this part is important bestie, don't skip 🙈

  • returns -EINVAL if you passed null pointers (not me passing null pointers 😭)
  • returns -ERANGE if the clkdm usecount underflows 💀 like it went below where it should, that's bad
  • returns 0 upon success ✨ or if the clockdomain is in hwsup idle mode 👑

so yeah, 0 is the slay outcome, negative numbers are the "girl what" outcomes 🍓

💜 SEE ALSO 💜

all the siblings, the whole friend group, no one left out 🫶 the kernel file is ./arch/arm/mach-omap2/clockdomain.c and here's everybody:

ok that's the whole page bestie, go forth and decrement responsibly 💖

that's a wrap from the ./arch/arm/mach-omap2 girlies, dated October 2026, version vibes included — mwah, mwah, periodt 👑💅

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