intel_dpll_compare_hw_state(9)

✨ intel_dpll_compare_hw_state(9) ✨

okay bestie, welcome to the Kernel API Manual 🎀 — today's main character is intel_dpll_compare_hw_state, and honestly? she's a lil function with one job and she does it fr fr 💅

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🌸 NAME 🌸

intel_dpll_compare_hw_state — compare the two states 🦋

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✨ SYNOPSIS ✨

bool intel_dpll_compare_hw_state (struct intel_display *display , const
       struct intel_dpll_hw_state *a , const struct intel_dpll_hw_state *b );

like, yes she returns a bool, and yes she takes three things. iconic behavior honestly 👑

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💖 ARGUMENTS 💖

• display — the intel_display structure, aka the whole vibe context 🫶
• a — the first DPLL hw state, our first contestant 🍓
• b — the second DPLL hw state, contestant number two ✨

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🔥 DESCRIPTION 🔥

Compare DPLL hw states a and b. that's it, that's the whole plot 😭 literally just a side-by-side vibe check between two hardware states, no cap 💀

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⭐ RETURN ⭐

true if the states are equal, false if they differ 💜 (yes the original says "the differ", we love a typo moment, she's still slaying 🙈)

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🌈 SEE ALSO 🌈

it's giving ✨ extended universe ✨ — the kernel file lives at ./drivers/gpu/drm/i915/display/intel_dpll_mgr.c, and here's the whole friend group:

• Display PLLs(9) 👑
• intel_get_dpll_by_id(9)
• intel_dpll_enable(9)
• intel_dpll_disable(9)
• intel_dpll_crtc_get(9)
• intel_dpll_crtc_put(9)
• intel_dpll_swap_state(9)
• icl_set_active_port_dpll(9)
• intel_dpll_init(9)
• intel_dpll_compute(9)
• intel_dpll_reserve(9)
• intel_dpll_release(9)
• intel_dpll_update_active(9)
• intel_dpll_get_freq(9)
• intel_dpll_get_hw_state(9)
• intel_dpll_dump_hw_state(9)

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ngl bestie, this one's short and sweet — no hidden traps, no deprecated flags, no scary warnings. just a clean lil comparison function. go off 🧚

okay that's the page!! mwah 💋 this came from ./drivers/gpu/drm/i915/display, dated October 2026, and it's the intel_dpll_compare_hw_state(9) manual page — catch you on the next one, love u, bye 👋💖