intel_display_power_init_hw(9)

📦 version 7.3.1, in nixpkgs unstable

💅 intel_display_power_init_hw(9) — like, the whole kernel API manual moment ✨

okay so bestie, welcome to the glow-up of intel_display_power_init_hw, straight out of the Kernel API Manual (yes, that's the manual name, we're fancy now 👑). Buckle in, this one's a hardware init function and it's lowkey important.

✨ NAME ✨

intel_display_power_init_hw — initializes the hardware power domain state 🫶

🦋 SYNOPSIS 🦋

void intel_display_power_init_hw (struct intel_display *display );

like, that's the whole signature, no cap. it returns void — nothing comes back out 💀

🎀 ARGUMENTS 🎀

  • display — the display device instance, aka the main character of this whole operation 🌟

🔥 DESCRIPTION 🔥

okay so here's the tea, bestie ☕ — this function initializes the hardware power domain state, and it enables all the power wells that belong to the INIT power domain. slay. 💅

power wells in other domains (so, the ones that are not in the INIT domain) get referenced or disabled by intel_modeset_readout_hw_state. after that happens, the reference count of each power well must match its HW enabled state — and you verify that with intel_power_domains_verify_state. 👀 (yes, must. we're not playing around here.)

⚠️ heads up: it will return with power domains disabled — they get enabled later by intel_display_power_enable — and it must be paired with intel_display_power_driver_remove. that's not optional, that's the vibe check. fr fr.

🌈 SEE ALSO 🌈

the kernel file, living its life at:

./drivers/gpu/drm/i915/display/intel_display_power.c

and literally all of these besties:

🫶 and that's the page!! this icon lives in ./drivers/gpu/drm/i915/display, the date on it is October 2026, and it's the intel_display_power_init_hw(9) page — periodt. go forth and enable your power wells, queen 👑💖

📦 where this page comes from