STRUCT PCH_GPIO(9)

okay bestie, welcome to the struct pch_gpio(9) page in the Kernel API Manual — we're decoding the private data structure for GPIO, and it's giving backstage-pass energy ✨. every field is here, no skips, fr fr.

💖 NAME 💖

struct pch_gpio — GPIO private data structure. that's the name, and yes, it's quietly iconic 👑

✨ SYNOPSIS ✨

       struct pch_gpio {
           void __iomem *base;
           struct pch_regs __iomem *reg;
           struct device *dev;
           struct gpio_chip gpio;
           struct pch_gpio_reg_data pch_gpio_reg;
           int irq_base;
           enum pch_type_t ioh;
           raw_spinlock_t spinlock;
        };

🎀 Members 🎀

• base — PCI base address of Memory mapped I/O register. literally the base address for that memory-mapped I/O register, periodt 💅
• reg — memory-mapped PCH GPIO register list. the lineup of PCH GPIO registers, mapped into memory, slay 💖
• dev — pointer to device structure. just a pointer to the device structure, keeping it connected 🫶
• gpio — data for GPIO infrastructure. the data for GPIO infrastructure — main-character payload, no cap ✨
• pch_gpio_reg — memory-mapped Register data is saved here when suspend. when suspend happens, the memory-mapped register data gets stashed here 😴
• irq_base — saves base of IRQ number for interrupt. it saves the base of the IRQ number for interrupt, iykyk 🔥
• ioh — IOH ID. that's the IOH ID — short, mysterious, iconic 🌈
• spinlock — used for register access protection. the spinlock for register access protection, keeping things protected 💜

👀 SEE ALSO 👀

• Kernel file ./drivers/gpio/gpio-pch.c — go peek at the source, bestie, it's right there 📖
• struct pch_gpio_reg_data(9) — the related register-data struct page, linked for your reading pleasure ✨

and that's the whole struct vibe 🫶 — this page's source/version is ./drivers/gpio, dated October 2026. byeee 💖