clkdm_wakeup_nolock(9)

💅 clkdm_wakeup_nolock(9) — a Kernel API Manual moment

okay so bestie, welcome to section 9 of the Kernel API Manual, where we're talking about clkdm_wakeup_nolock — yes that whole name, say it with your chest ✨

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🌸 NAME 🌸

clkdm_wakeup_nolock — force clockdomain wakeup transition (lockless)

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🎀 SYNOPSIS 🎀

int clkdm_wakeup_nolock (struct clockdomain *clkdm );

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💖 ARGUMENTS 💖

• clkdm — a struct clockdomain *. that's the one, the whole vibe, the clockdomain we're about to wake up 🔥

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✨ DESCRIPTION ✨

okay so here's the tea 🫖 — this function tells the CM to force a wakeup transition on the clockdomain you passed in as clkdm. like, go go go, wake up bestie 💅

big caveat tho, and I mean it: this is only for use by the powerdomain code. not you, not your driver, not your little side quest. the powerdomain code. periodt.

what does it return? glad you asked:

• -EINVAL if clkdm is NULL, or if the clockdomain doesn't support software-controlled wakeup 😭
• 0 upon success 👑

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🦋 SEE ALSO 🦋

all the siblings in the Kernel file ./arch/arm/mach-omap2/clockdomain.c, no cap:

_clkdm_register(9), _autodep_lookup(9), _resolve_clkdm_deps(9), _clkdm_add_wkdep(9), _clkdm_del_wkdep(9), _clkdm_add_sleepdep(9), _clkdm_del_sleepdep(9), clkdm_register_platform_funcs(9), clkdm_register_clkdms(9), clkdm_register_autodeps(9), clkdm_complete_init(9), clkdm_lookup(9), clkdm_for_each(9), clkdm_get_pwrdm(9), clkdm_add_wkdep(9), clkdm_del_wkdep(9), clkdm_read_wkdep(9), clkdm_clear_all_wkdeps(9), clkdm_add_sleepdep(9), clkdm_del_sleepdep(9), clkdm_read_sleepdep(9), clkdm_clear_all_sleepdeps(9), clkdm_sleep_nolock(9), clkdm_sleep(9), clkdm_wakeup(9), clkdm_allow_idle_nolock(9), clkdm_allow_idle(9), clkdm_deny_idle_nolock(9), clkdm_deny_idle(9), clkdm_add_autodeps(9), clkdm_del_autodeps(9), clkdm_clk_enable(9), clkdm_clk_disable(9), clkdm_hwmod_enable(9), clkdm_hwmod_disable(9), _clkdm_save_context(9), _clkdm_restore_context(9), clkdm_save_context(9), clkdm_restore_context(9)

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ngl, the _nolock in the name is doing main character energy — just know it's lockless and the powerdomain code is the only one invited to this party 🙈

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and that's the whole page, bestie 🍓 sign-off time: this one lives in ./arch/arm/mach-omap2, dated October 2026, and it's literally called clkdm_wakeup_nolock(9) 💜 mwah 💋