STRUCT SYSC(9)

✨ struct sysc(9) — Kernel API Manual vibes ✨

okay so welcome to the struct sysc(9) page from the Kernel API Manual, bestie 💖 this is literally the whole glow-up for TI sysc interconnect target module registers and capabilities. no cap, it's giving "kernel internals but make it cute." let's get into it 🫶

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🌸 NAME 🌸

struct sysc — the TI sysc interconnect target module registers and capabilities. periodt. 💅

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🌈 SYNOPSIS 🌈

like, here's the whole struct in all its main-character glory — copy it exactly, don't @ me:

struct sysc {
    struct device *dev;
    u64 module_pa;
    u32 module_size;
    void __iomem *module_va;
    int offsets[SYSC_MAX_REGS];
    struct ti_sysc_module_data *mdata;
    struct clk **clocks;
    const char **clock_roles;
    int nr_clocks;
    struct reset_control *rsts;
    const char *legacy_mode;
    const struct sysc_capabilities *cap;
    struct sysc_config cfg;
    struct ti_sysc_cookie cookie;
    const char *name;
    u32 revision;
    u32 sysconfig;
    unsigned int reserved:1;
    unsigned int enabled:1;
    unsigned int needs_resume:1;
    unsigned int child_needs_resume:1;
    struct delayed_work idle_work;
    void (*pre_reset_quirk)(struct sysc *sysc);
    void (*post_reset_quirk)(struct sysc *sysc);
    void (*reset_done_quirk)(struct sysc *sysc);
    void (*module_enable_quirk)(struct sysc *sysc);
    void (*module_disable_quirk)(struct sysc *sysc);
    void (*module_unlock_quirk)(struct sysc *sysc);
    void (*module_lock_quirk)(struct sysc *sysc);
 };

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🎀 Members 🎀

okay so every single field, explained with love — no skipping, no summarizing, we list all 29 like the icons they are 💖

• dev — the struct device pointer, like the main character's ID badge 🪪
• module_pa — physical address of the interconnect target module, fr fr where it lives in memory-land
• module_size — size of the interconnect target module, the literal footprint 👟
• module_va — virtual address of the interconnect target module, the vibe it presents to software ✨
• offsets — register offsets from the module base, like little GPS coordinates for registers 🗺️
• mdata — the ti-sysc to hwmod translation data for a module, the translator bestie 🧚
• clocks — clocks used by the interconnect target module, tick tock energy ⏰
• clock_roles — clock role names for the found clocks, giving each clock its own little name tag 🏷️
• nr_clocks — number of clocks used by the interconnect target module, the headcount 🔢
• rsts — resets used by the interconnect target module, the reset button squad 🔄
• legacy_mode — configured for legacy mode if set, old-school but still iconic 👑
• cap — interconnect target module capabilities, the special skills list 🌟
• cfg — interconnect target module configuration, its settings era 💅
• cookie — data used by legacy platform callbacks, a lil snack for the old code 🍪
• name — name if available, so we know who we're dealing with 🪞
• revision — interconnect target module revision, the version tea ☕
• sysconfig — saved sysconfig register value, a lil memory keepsake 🧠
• reserved — target module is reserved and already in use, so don't touch, bestie 🚫
• enabled — sysc runtime enabled status, like an "I'm awake" check ✅
• needs_resume — runtime resume needed on resume from suspend, sleepyhead alarm ⏰😴
• child_needs_resume — runtime resume needed for child on resume from suspend, the kid also needs waking up 👶
• idle_work — work structure used to perform delayed idle on a module, the "brb going idle" scheduled task 📅
• pre_reset_quirk — module specific pre-reset quirk, a lil something before reset 🌀
• post_reset_quirk — module specific post-reset quirk, a lil something after reset 🎀
• reset_done_quirk — module specific reset done quirk, celebrating reset completion 🎉
• module_enable_quirk — module specific enable quirk, special enable behavior ✨
• module_disable_quirk — module specific disable quirk, special disable behavior 💤
• module_unlock_quirk — module specific sysconfig unlock quirk, the "open sesame" moment 🔓
• module_lock_quirk — module specific sysconfig lock quirk, the "lock it down" moment 🔒

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🦋 SEE ALSO 🦋

like, go look at these if you want the full lore — kernel file ./drivers/bus/ti-sysc.c and all these function besties:

sysc_init_resets(9), sysc_parse_and_check_child_range(9), sysc_check_one_child(9), sysc_parse_one(9), sysc_check_registers(9), sysc_ioremap(9), sysc_map_and_check_registers(9), sysc_show_rev(9), sysc_show_registers(9), sysc_write_sysconfig(9), sysc_context_notifier(9), sysc_add_restored(9)

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ok that's the whole page, bestie — no details left behind, every field accounted for, every quirk named, every SEE ALSO reference present. you're welcome 💅

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this iconic page lives under ./drivers/bus and it's dated October 2026 — so mark your calendar, screenshot it, send it to the group chat, and stan responsibly 🌈💖✨