STRUCT PMC_CLK(9)

🎀 struct pmc_clk 🎀

okay so you're in the Kernel API Manual and the star of the show today is struct pmc_clk — it's literally the PMC platform clock configuration and it's giving "small struct, big responsibilities" energy fr fr 💅

✨ SYNOPSIS ✨

struct pmc_clk {
    const char *name;
    unsigned long freq;
    const char *parent_name;
 };

three fields, zero drama, we love a minimal icon 🌸

👑 Members 👑

• name — this is the identifier, and typically it's gonna look like pmc_plt_clk_<x> where x ranges over [0..5]. so yeah, six clocks, numbered, cute, done 💖
• freq — the frequency, in Hz. supported values are 19.2MHz and 25MHz (that second one is Baytrail only, so don't come for the other platforms bestie, they can't sit with us) 🦋
• parent_name — the parent clock's name, and it's one of 'xtal' or 'osc'. that's the whole vibe check, pick one 🎀

🔍 SEE ALSO 🔍

• Kernel file ./include/linux/platform_data/x86/clk-pmc-atom.h
• struct pmc_clk_data(9) — the related one, go read it, iykyk ✨

ngl this page is tiny but it ate. all the details are above, no cap, nothing skipped 🫶

mwah 💜 that's the whole page — it came from the source path ./include/linux/platform_data/x86, dated October 2026, and the manual entry is literally called struct pmc_clk(9). catch you in the next one, bestie ✨🎀