__clk_speculate_rates(9)

📦 version 7.3.1, in nixpkgs unstable

💖 NAME 💖

__clk_speculate_rates — speculate all rates in the clk subtree. This page is from the Kernel API Manual, bestie, and it’s literally __clk_speculate_rates(9) 💅.

🌸 SYNOPSIS 🌸

int __clk_speculate_rates (struct clk_core *core , unsigned long
       parent_rate );

🎀 ARGUMENTS 🎀

  • core — first clk in the subtree. like the starting point of the whole rate-speculation stroll.
  • parent_rate — the "future" rate of clk’s parent. Future as in the rate it’s gonna have, not a prophecy 🔮.

🦋 DESCRIPTION 🦋

Okay so __clk_speculate_rates walks the subtree of clks starting with core, speculating rates as it goes and firing off PRE_RATE_CHANGE notifications as necessary. It’s giving very “rate-change warning system” energy ✨.

Unlike __clk_recalc_rates, __clk_speculate_rates exists only for sending pre-rate change notifications and returns early if no clks in the subtree have subscribed to the notifications. So if nobody’s listening, it dips 😌.

Note bestie: if a clk does not implement the .recalc_rate callback then it is assumed that the clock will take on the rate of its parent. That’s the rule, no cap 🫶.

💅 SEE ALSO 💅

The kernel file ./drivers/clk/clk.c is the source file, and here are all the linked besties, in order:

okay that’s the whole page 💖 source/version is ./drivers/clk, date is October 2026, and yes the page is __clk_speculate_rates(9) — go speculate those rates responsibly, bestie 🫶✨

📦 where this page comes from