pcs_quirk_m...inctrl_cells(9)

💅 pcs_quirk_missing_pinctrl_cells(9) — like, the Kernel API Manual page, bestie 🎀

okay so this is a page from the Kernel API Manual, and the function's full name is pcs_quirk_missing_pinctrl_cells (the header up top got a lil truncated as pcs_quirk_m...inctrl_cells(9) — she's shy, it happens 💖). Pull up a chair, we're doing legacy device-tree binding today.

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✨ NAME ✨

pcs_quirk_missing_pinctrl_cells — handles the legacy binding situation 🫶

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🌸 SYNOPSIS 🌸

int pcs_quirk_missing_pinctrl_cells (struct pcs_device *pcs , struct device_node *np , int cells );

like literally that's the whole signature, no cap ✨

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🦋 ARGUMENTS 🦋

• pcs — the pinctrl driver instance itself, the main character of this whole operation 👑
• np — the device tree node we're looking at 🌳
• cells — number of cells, just a count, that's it, that's the whole vibe 🔢

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💜 DESCRIPTION 💜

so the tea is: this function handles the legacy binding — meaning the old-school case where there's no #pinctrl-cells property at all 🙈

and here's the rule, bestie, write it down: it should always be two for pinctrl-single,bit-per-mux, and one for everybody else. periodt. 💅

⚠️ also a lil warning from the original: "At some point we may want to consider removing this." so yeah, she's on borrowed time, don't get too attached 😭

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🔥 SEE ALSO 🔥

Kernel file ./drivers/pinctrl/pinctrl-single.c, plus literally the entire friend group:

• struct pcs_func_vals(9)
• struct pcs_conf_vals(9)
• struct pcs_conf_type(9)
• struct pcs_function(9)
• struct pcs_gpiofunc_range(9)
• struct pcs_data(9)
• struct pcs_soc_data(9)
• struct pcs_device(9)
• pcs_add_pin(9)
• pcs_allocate_pin_table(9)
• pcs_add_function(9)
• pcs_get_pin_by_offset(9)
• pcs_parse_one_pinctrl_entry(9)
• pcs_dt_node_to_map(9)
• pcs_irq_free(9)
• pcs_free_resources(9)
• struct pcs_interrupt(9)
• pcs_irq_set(9)
• pcs_irq_mask(9)
• pcs_irq_unmask(9)
• pcs_irq_set_wake(9)
• pcs_irq_handle(9)
• pcs_irq_handler(9)
• pcs_irq_chain_handler(9)
• pcs_irq_init_chained_handler(9)

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mwah 💋 that's the page! shoutout to ./drivers/pinctrl for hosting her, and happy October 2026 reading, bestie — go forth and quirk responsibly 🧚‍♀️⭐