am33xx_cm_wait_module_ready(9)

📦 version 7.3.1, in nixpkgs unstable

💅 am33xx_cm_wait_module_ready — like, the kernel API manual, but make it make sense

okay so bestie, this is a page from the Kernel API Manual (that's the manual name, we're folding it in and moving on 💖) and it's about one (1) function that waits for a module to stop being asleep. genuinely iconic behaviour. let's get into it 🎀

✨ NAME ✨

am33xx_cm_wait_module_ready — wait for a module to be in 'func' state 🫶

like literally just: sit there and wait until the module is functional. that's the whole job. no cap.

🌸 SYNOPSIS 🌸

int am33xx_cm_wait_module_ready (u8 part , s16 inst , u16 clkctrl_offs ,
u8 bit_shift );

that's the whole signature, copy it exactly, don't @ me 💅

🦋 ARGUMENTS 🦋

  • part — the PRCM partition. for AM33xx this is ignored, so you can literally pass whatever and the hardware is like "mm, didn't ask" 🙈
  • inst — the CM instance register offset, i.e. the *_INST macro. this one actually matters, she's the main character 👑
  • clkctrl_offs — the Module clock control register offset, i.e. the *_CLKCTRL macro. also very much doing something ✨
  • bit_shift — bit shift for the register. ignored for AM33xx too, so yeah, two of the four args are just vibes on this platform 💀

💜 DESCRIPTION 💜

okay so the whole point: wait for the module IDLEST to be functional. that's it. that's the function. queen of patience ⭐

but here's the part where you gotta pay attention, bestie, because this is the dangerous bit 👀 — if the idle state is in any of the non-functional states (that's trans, idle, or disabled), then the module — and therefore the sysconfig — cannot be accessed, and it will probably lead to an "imprecise external abort" 😭😭

fr fr do not skip the wait. the abort is imprecise. that means it doesn't even tell you where it went wrong. it's giving chaos. it's giving no thoughts head empty. respect the wait 💀

🔥 SEE ALSO 🔥

the kernel file be living at ./arch/arm/mach-omap2/cm33xx.c 📁 and here's the whole friend group, all of them absolutely slay:

iykyk 🌈

🧚 sign-off 🧚

so yeah, this page comes to you from ./arch/arm/mach-omap2 🌸, dated October 2026, and it's filed under am33xx_cm_wait_module_ready(9) — that's the version/date and title situation, consider it mentioned, mwah 💋✨

now go wait for your module properly, bestie. periodt. 💅🔥

📦 where this page comes from