STRUCT OMAP_PRCM_IRQ_SETUP(9)

💖 NAME 💖

okay so this is the struct omap_prcm_irq_setup(9) page from the Kernel API Manual, and it's literally the PRCM interrupt controller details struct. Bestie, she's the whole vibe — every field matters, no cap. ✨

🌸 SYNOPSIS 🌸

here's the struct in all her exact glory, because we do not play with field names in this group chat:

struct omap_prcm_irq_setup {
    u16 ack;
    u16 mask;
    u16 pm_ctrl;
    u8 nr_regs;
    u8 nr_irqs;
    const struct omap_prcm_irq *irqs;
    int irq;
    void (*read_pending_irqs)(unsigned long *events);
    void (*ocp_barrier)(void);
    void (*save_and_clear_irqen)(u32 *saved_mask);
    void (*restore_irqen)(u32 *saved_mask);
    void (*reconfigure_io_chain)(void);
    u32 *saved_mask;
    u32 *priority_mask;
    int base_irq;
    bool suspended;
    bool suspend_save_flag;
};

💅 Members 💅

okay so here's every single member, zero skipped, because the vibe check is all the details or nothing:

• ack — PRM register offset for the first PRM_IRQSTATUS_MPU register. 💅
• mask — PRM register offset for the first PRM_IRQENABLE_MPU register. ✨
• pm_ctrl — PRM register offset for the PRM_IO_PMCTRL register. 🎀
• nr_regs — number of PRM_IRQ{STATUS,ENABLE}_MPU* registers. 🦋
• nr_irqs — number of entries in the irqs array. 🌸
• irqs — ptr to an array of PRCM interrupt bits (see nr_irqs). 💖
• irq — MPU IRQ asserted when a PRCM interrupt arrives. 🔥
• read_pending_irqs — fn ptr to determine if any PRCM IRQs are pending. 👑
• ocp_barrier — fn ptr to force buffered PRM writes to complete. 🌈
• save_and_clear_irqen — fn ptr to save and clear IRQENABLE regs. ⭐
• restore_irqen — fn ptr to save and clear IRQENABLE regs. 💀
• reconfigure_io_chain — fn ptr to reconfigure IO chain. 🧚
• saved_mask — IRQENABLE regs are saved here during suspend. 🍓
• priority_mask — 1 bit per IRQ, set to 1 if omap_prcm_irq.priority = true. 🙈
• base_irq — base dynamic IRQ number, returned from irq_alloc_descs in init. 💜
• suspended — set to true after Linux suspend code has called our ->prepare. 🦋
• suspend_save_flag — set to true after IRQ masks have been saved and disabled. ✨

🦋 Description 🦋

saved_mask, priority_mask, base_irq, suspended, and suspend_save_flag are populated dynamically, and are not to be specified in static initializers. Periodt. Do not put them in your static initializer, bestie — they're doing dynamic main character work. 🫶

🌈 SEE ALSO 🌈

Kernel file ./arch/arm/mach-omap2/prcm-common.h omap_test_timeout(9), struct omap_prcm_irq(9), struct omap_prcm_init_data(9). That's the whole squad, no extras. 💜

mwah 💋 this page is sourced from ./arch/arm/mach-omap2, dated October 2026, and it's literally struct omap_prcm_irq_setup(9) — bye bestie! 🎀