dpll_pin_register(9)

✨ dpll_pin_register(9) ✨

okay so bestie, welcome to the Kernel API Manual 💖 — this is dpll_pin_register(9), and it's literally the moment a dpll pin gets officially introduced to the subsystem 🎀

🌸 NAME 🌸

dpll_pin_register — register the dpll pin in the subsystem. yeah. that's the whole vibe. it's giving "new kid walks into the group chat and everyone says hi" 🫶

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🦋 SYNOPSIS 🦋

int dpll_pin_register (struct dpll_device *dpll , struct dpll_pin *pin ,
const struct dpll_pin_ops *ops , void *priv );

no cap, that's the exact signature, don't @ me 💅

🎀 ARGUMENTS 🎀

• dpll — pointer to a dpll. yep, the parent device, the main character in this story 👑
• pin — pointer to a dpll pin. this is the one getting registered, baby's first debut ⭐
• ops — ops for a dpll pin ops. the whole little bundle of callbacks that tell the pin how to act 😭
• priv — pointer to private information of owner. your own stuff, safely tucked away, not the kernel's business 🙈

🔥 CONTEXT 🔥

Acquires a lock (dpll_lock). so like, heads up: it grabs the lock. don't be weird about it, the subsystem's got it handled 🔒

ngl, this is important — it means you're not just vibing in there doing whatever, the lock is held. plan accordingly, bestie 💀

🍓 RETURN 🍓

• 0 on success — slay, it worked 🎉
• negative — error value. it's giving "nope, here's a negative number, deal with it" 😭

🌈 SEE ALSO 🌈

Kernel file ./drivers/dpll/dpll_core.c, plus the whole friend group: dpll_device_get(9), dpll_device_put(9), dpll_device_register(9), dpll_device_unregister(9), dpll_pin_get(9), dpll_pin_put(9), dpll_pin_fwnode_set(9), fwnode_dpll_pin_find(9), dpll_pin_unregister(9), dpll_pin_on_pin_register(9), dpll_pin_on_pin_unregister(9), dpll_pin_ref_sync_pair_add(9), dpll_pin_own_dpll_ref_first(9) 🧚💜

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and that's the whole page, bestie — brought to you by ./drivers/dpll, dated October 2026, signed off as dpll_pin_register(9) ✨💅 mwah 🫶