sci_clk_set_rate(9)

📦 version 7.3.1, in nixpkgs unstable

💅 sci_clk_set_rate — like, the manual page, bestie

okay so this is sci_clk_set_rate(9) from the Kernel API Manual and it's genuinely one of the shorter ones so we can absolutely get through it together 🫶

✨ NAME ✨

sci_clk_set_rate — sets the rate for a TI SCI clock, no cap 🔥

✨ SYNOPSIS ✨

int sci_clk_set_rate (struct clk_hw *hw , unsigned long rate , unsigned
       long parent_rate );

like yes the line breaks are ugly, that's just how it's formatted in the source, we don't judge 💀

✨ ARGUMENTS ✨

  • hw — the clock you're changing the rate for, the main character of this whole operation 👑
  • rate — the target rate for the clock, i.e. what you want it to be 🎯
  • parent_rate — the rate of the clock parent. for TI SCI clocks this one is literally not used, it's just there vibing 🙈

✨ DESCRIPTION ✨

so what it does: it sets a clock frequency for a TI SCI clock. that's it, that's the whole vibe ✨

and it returns the TI SCI protocol status — so like, check that return value, bestie, it's giving "i have news" 😭

ngl parent_rate is passed in but not used for TI SCI clocks — don't stress about it, it's not you, it's the API 💅

✨ SEE ALSO ✨

go look at the kernel file ./drivers/clk/keystone/sci-clk.c — that's where the lore lives 📖 and while you're there, the whole friend group:

okay that's the page!! 🎀 it lives over in ./drivers/clk/keystone, dated October 2026, and the whole thing is titled sci_clk_set_rate(9) in case you forgot already 💜 slay, go set some rates, ily, bye 🦋

📦 where this page comes from