STRUCT SCI_CLK(9)

📦 version 7.3.1, in nixpkgs unstable

💅 struct sci_clk(9) — the Kernel API Manual, bestie edition 🎀

okay so welcome to the Kernel API Manual page for struct sci_clk — literally the TI SCI clock representation and she is that girl ✨. This struct is the whole personality of a single clock in the TI SCI world, and we're gonna go through every single field together, no skips, no cap 💖.

🌸 NAME 🌸

struct sci_clk — TI SCI clock representation 🕰️👑

✨ SYNOPSIS ✨

struct sci_clk {
    struct clk_hw hw;
    u16 dev_id;
    u32 clk_id;
    u32 num_parents;
    struct sci_clk_provider *provider;
    u8 flags;
    struct list_head node;
    unsigned long cached_req;
    unsigned long cached_res;
    int parent_id;
    unsigned long rate;
 };

like… look at her. eleven fields, all iconic, all load-bearing 💅

🦋 Members 🦋

group-chat rundown of every field, in order, because we do not skip 🫶

  • hw — the hardware clock cookie for the common clock framework 🍪 like yes, this is the handshake with the CCF, main character energy fr.
  • dev_id — the device index 🔢 which device are we even talking about, bestie.
  • clk_id — the clock index ⏰ the specific clock inside that device, iykyk.
  • num_parents — how many parents this clock has 👩‍👩‍👧 a whole family tree situation, and this field is keeping count.
  • provider — the master clock provider 👑 the boss, the one who runs the whole operation, struct sci_clk_provider *.
  • flags — flags for the clock 🚩 lil u8 of extra info, tiny but mighty.
  • node — the link for handling clocks probed via DT 🔗 Device Tree found this clock and this is how we keep track of it in the list, slay.
  • cached_req — cached requested freq for determine rate calls 💾 the asked-for rate, remembered so we don't have to bother anyone twice, lowkey efficient.
  • cached_res — cached result freq for determine rate calls 📊 the actual answer rate we got back, also remembered. caching queen behavior honestly.
  • parent_id — parent index for this clock 🧬 which parent we're rolling with, as an int.
  • rate — clock rate ⚡ the rate itself, an unsigned long, the whole point of the whole struct ngl.

🌈 SEE ALSO 🌈

ngl if you made it to the end of this list you're genuinely built different 🫶 go be a clock girlie 💜

and that's the page!! courtesy of ./drivers/clk/keystone, version dated October 2026, filed under struct sci_clk(9) — mwah, love u, go read the kernel 💋🎀🦋

📦 where this page comes from