zl3073x_dpl..._registrable(9)

💅 zl3073x_dpl..._registrable(9) — from the Kernel API Manual, bestie 🎀

okay so this is a page straight outta the Kernel API Manual, and it's all about one little function that does a vibe check on your pins 💖 no cap, it's shorter than it looks, let's go ✨

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🌸 NAME 🌸

zl3073x_dpll_pin_is_registrable — checks if the pin is registrable 🫶 (yes, that's literally its whole job, and it does it iconically)

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🦋 SYNOPSIS 🦋

bool zl3073x_dpll_pin_is_registrable (struct zl3073x_dpll *zldpll , enum
dpll_pin_direction dir , u8 index );

like… three args, one bool back, so simple it's giving main character energy 👑

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💜 ARGUMENTS 💜

• zldpll — pointer to the zl3073x_dpll structure 💫 (the whole DPLL situation, fr fr)
• dir — the pin direction 🧭 (which way it's facing, bestie)
• index — the pin index 🔢 (which pin we're talking about, iykyk)

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✨ DESCRIPTION ✨

okay so here's the lore 📖 — this one checks if the given pin can be registered to the given DPLL. and for both directions, the pin can be registered if it is enabled ✅ periodt.

in case of differential signal type, only the P-pin is reported as registrable 🅿️✨ and additionally, for the output pin, the pin can be registered only if it is connected to a synthesizer that is driven by the given DPLL 🔥 that's the whole condition, no cap.

lowkey a lot of rules for one tiny bool, but that's just how it is 🙈

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⭐ RETURN ⭐

• true — if the pin is registrable 💖 slay
• false — if not 💀

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🌈 SEE ALSO 🌈

the whole friend group, honestly 🫶 every single one:

• Kernel file ./drivers/dpll/zl3073x/dpll.c struct zl3073x_dpll_pin(9)
• zl3073x_dpll_is_input_pin(9)
• zl3073x_dpll_is_nco_pin(9)
• zl3073x_dpll_is_p_pin(9)
• zl3073x_dpll_connected_ref_get(9)
• zl3073x_dpll_ref_operstate_get(9)
• zl3073x_dpll_pin_alloc(9)
• zl3073x_dpll_pin_free(9)
• zl3073x_dpll_pin_register(9)
• zl3073x_dpll_pin_unregister(9)
• zl3073x_dpll_pins_unregister(9)
• zl3073x_dpll_pins_register(9)
• zl3073x_dpll_device_register(9)
• zl3073x_dpll_device_unregister(9)
• zl3073x_dpll_pin_phase_offset_check(9)
• zl3073x_dpll_pin_ffo_check(9)
• zl3073x_dpll_pin_measured_freq_check(9)
• zl3073x_dpll_changes_check(9)
• zl3073x_dpll_init_fine_phase_adjust(9)
• zl3073x_dpll_ptp_gettimex64(9)
• zl3073x_dpll_ptp_settime64(9)
• zl3073x_dpll_ptp_adjtime_phase_step(9)
• zl3073x_dpll_ptp_adjtime(9)
• zl3073x_dpll_ptp_adjfine(9)
• zl3073x_dpll_ptp_adjphase(9)
• zl3073x_dpll_ptp_register(9)
• zl3073x_dpll_ptp_unregister(9)
• zl3073x_dpll_ref_sync_pair_register(9)
• zl3073x_dpll_ref_sync_pairs_register(9)
• zl3073x_dpll_alloc(9)
• zl3073x_dpll_free(9)
• zl3073x_dpll_register(9)
• zl3073x_dpll_unregister(9)

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and that's the whole page, bestie 💅✨ this lil guy lives at ./drivers/dpll/zl3073x and the version situation is dated October 2026 🗓️💖 go forth and check those pins, ily, bye 🫶🎀