STRUCT NVL_GPIO(9)

✨ struct nvl_gpio(9) ✨

okay so this is from the Kernel API Manual, and it's literally the state struct for the Intel Nova Lake GPIO driver 💅 like, this is where the driver keeps all its lil' stateful vibes, and we're gonna go through every single member together, no cap 🫶

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🌸 NAME 🌸

struct nvl_gpio — Intel Nova Lake GPIO driver state

yep, that's the whole vibe: driver state, Nova Lake, Intel, GPIO. iconic. 👑

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🎀 SYNOPSIS 🎀

struct nvl_gpio {
    struct gpio_chip gc;
    void __iomem *reg_base;
    raw_spinlock_t lock;
    size_t blk_size;
};

look at her. four members, zero notes, absolute main character energy. 🦋 every field copied exactly, bestie, don't @ me.

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💖 Members 💖

• gc — the GPIO controller interface 🎮 like this is the actual struct gpio_chip that plugs into the GPIO subsystem, the whole point of the struct tbh
• reg_base — base address of the GPE registers 📍 it's a void __iomem *, so it's an iomem-mapped pointer, treat her with respect
• lock — the raw_spinlock_t that guards register access 🔒 so like. if you're touching registers, you're going through her first, periodt
• blk_size — GPE block length 📏 a size_t, and yes she's measuring the block, that's the whole job

lowkey do NOT access those registers without holding lock, she is literally described as guarding register access and we stan a consistent lock 😭

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/gpio/gpio-novalake-events.c — go read the actual driver bestie, that's where the plot happens 🧚

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and that's the whole page!! 💜 no filler, no gatekeeping, every member accounted for ✨

sign-off time: this lil' beauty lives under ./drivers/gpio, dated October 2026, and it's an absolute classic fr fr 🌸🎀💅