intel_power_domains_suspend(9)

💤 intel_power_domains_suspend(9) — the kernel API manual, but make it cute

okay so bestie, we're in the Kernel API Manual today and the star of the show is intel_power_domains_suspend — yes that's a 9 in the parens, that means it's a kernel function, iykyk 💅

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✨ NAME ✨

intel_power_domains_suspend — suspend power domain state

like... literally it puts the power domain state to sleep, that's the whole vibe 😴

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🌸 SYNOPSIS 🌸

void intel_power_domains_suspend (struct intel_display *display , bool
s2idle );

returns nothing (void), takes two things, slay 🫶

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🎀 ARGUMENTS 🎀

• display — the display device instance, aka the main character of this operation 👑
• s2idle — tells us whether we're going to idle, or going into deeper sleep 🦋

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🧚 DESCRIPTION 🧚

so basically this function gets the hardware power domain state all prepped and ready before we enter system suspend. it's giving backstage prep before the show 🔥

⚠️ real talk though: it must be called with power domains already disabled — like, after a call to intel_display_power_disable — and it has to be paired with intel_power_domains_resume. not me stressing about pairing, but fr fr, don't leave it unpaired 😭

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💖 SEE ALSO 💖

Kernel file ./drivers/gpu/drm/i915/display/intel_display_power.c — go look at it, the whole squad lives there 🌈

and the rest of the friend group, all of them, no skips:

• intel_display_power_is_enabled(9)
• intel_display_power_set_target_dc_state(9)
• intel_display_power_get_current_dc_state(9)
• intel_display_power_get(9)
• intel_display_power_get_if_enabled(9)
• __intel_display_power_put_async(9)
• intel_display_power_flush_work(9)
• intel_display_power_flush_work_sync(9)
• intel_display_power_put(9)
• intel_display_power_put_unchecked(9)
• intel_display_power_init(9)
• intel_display_power_cleanup(9)
• intel_display_power_init_hw(9)
• intel_display_power_driver_remove(9)
• intel_display_power_sanitize_state(9)
• intel_display_power_enable(9)
• intel_display_power_disable(9)
• intel_power_domains_resume(9)
• intel_power_domains_verify_state(9)

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bestie, this page came from ./drivers/gpu/drm/i915/display and it's dated October 2026, filed under intel_power_domains_suspend(9) — that's the whole receipt, periodt 💅✨🍓