bios_parser...pio_pin_info(9)

✨ bios_parser_get_gpio_pin_info ✨

okay so bestie, this is a Kernel API Manual situation and the function is bios_parser_get_gpio_pin_info — say that five times fast, i literally dare you 💅 it lives in the bios_parser...pio_pin_info(9) section and it's giving "niche but crucial," no cap.

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🌸 SYNOPSIS 🌸

enum bp_result bios_parser_get_gpio_pin_info (struct dc_bios *dcb ,
uint32_t gpio_id , struct gpio_pin_info *info );

like, that's the whole vibe right there — three parameters, one return, let's get into it 🎀

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💖 ARGUMENTS 💖

• dcb — pointer to the DC BIOS. it's literally the BIOS baddie you're handing over, main character energy fr.
• gpio_id — the GPIO ID. yes bestie, this is the id you're asking about 🦋.
• info — the GpioPin information structure. this is where the tea gets stored when all is said and done 💅.

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🦋 DESCRIPTION 🦋

Get GpioPin information of input gpio id. that's it, that's the whole plot — you give it an id, it goes and fetches the pin info for you. lowkey iconic, highkey useful 🫶

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⭐ RETURN ⭐

Bios parser result code. so yeah, you get a result code back — read it, don't ignore it, that's the vibe check of this whole function ngl 💀

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🔥 NOTE 🔥

okay so this is the part where you gotta pay attention, bestie, because getting the GPIO PIN INFO is a whole two-step situation:

1. get the GPIO_ID from other object table, see GetHPDInfo.
2. in DATA_TABLE.GPIO_Pin_LUT, search all records, to get the registerA offset/mask.

like literally do both steps or you're gonna be lost in the sauce 🙈 step one gives you the id, step two digs through the lookup table for that registerA offset/mask. no shortcuts, periodt.

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🧚 SEE ALSO 🧚

• Kernel file ./drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c
• bios_parser_get_spread_spectrum_info(9)
• bios_parser_set_scratch_critical_state(9)

go read those too, they're all in the same friend group 🌈

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and that's the page, bestie 💜 shoutout to the kernel file ./drivers/gpu/drm/amd/display/... — the source of all this wisdom — dated October 2026, and filed under bios_parser...pio_pin_info(9) in the Kernel API Manual. slay, go forth, and parse those bios pins 🎀✨