intel_set_c...plane_update(9)

💅 intel_set_cdclk_post_plane_update(9) — like, the CDCLK glow-up, but after 💅

okay so bestie, quick vibe check: this is a page straight out of the Kernel API Manual, and it's serving very specific i915 display energy. no cap, it's niche, but it's iconic if you're into that sort of thing 🎀

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✨ NAME ✨

intel_set_cdclk_post_plane_update — push the CDCLK state to the hardware 🫶

like, actually push it. to the hardware. that's the whole assignment.

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🌸 SYNOPSIS 🌸

void intel_set_cdclk_post_plane_update (struct intel_atomic_state *state
);

literally one function, one argument, zero drama. look at her go 💖

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🦋 ARGUMENTS 🦋

• state — the intel atomic state. that's it, that's the description. she's the main character and she's carrying all the context 👜

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⭐ DESCRIPTION ⭐

so here's the tea ☕ — this function programs the hardware after the HW plane state has been updated, and it does it based on the new CDCLK state, if necessary.

read that again: after the plane update, based on the new state, if necessary. conditional queen. she doesn't just barge in and touch registers for no reason — she checks whether it's actually needed first. we love a function with boundaries 💅

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🔥 SEE ALSO 🔥

• Kernel file ./drivers/gpu/drm/i915/display/intel_cdclk.c — CDCLK / RAWCLK(9)
• intel_cdclk_init_hw(9)
• intel_cdclk_uninit_hw(9)
• intel_cdclk_clock_changed(9)
• intel_cdclk_can_cd2x_update(9)
• intel_cdclk_changed(9)
• intel_set_cdclk_pre_plane_update(9) — yes, this one's sibling ✨ (before vs. after, the classic duo)
• intel_update_max_cdclk(9)
• intel_update_cdclk(9)
• intel_read_rawclk(9)
• intel_init_cdclk_hooks(9)

⚠️ friendly reminder bestie: the manpage only lists these references — it doesn't promise anything about what they do. go read them yourself if you're curious, i'm just the messenger 🧚

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aaaaand that's the page 🎀 it lives in ./drivers/gpu/drm/i915/display, dated October 2026, and it's brought to you by the good people of the Kernel API Manual. periodt. 💜👑