STRUCT CLK_SI570(9)

💖 struct clk_si570(9) 💖

okay bestie, welcome to the Kernel API Manual — this is the page for struct clk_si570, and no cap, it's giving "small struct, big responsibilities" energy. It lives in the ./drivers/clk source tree, and it's the whole vibe of the Si570 clock chip's state, all bundled up in one lil struct. Let's get into it 🎀

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✨ NAME ✨

struct clk_si570 —

(yeah the description slot is literally empty in the original, bestie — not me leaving it blank, that's just canon 💀)

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🌸 SYNOPSIS 🌸

struct clk_si570 {
    struct clk_hw hw;
    struct regmap *regmap;
    unsigned int div_offset;
    const struct clk_si570_info *info;
    u64 fxtal;
    unsigned int n1;
    unsigned int hs_div;
    u64 rfreq;
    u64 frequency;
    struct i2c_client *i2c_client;
 };

like, that's the whole struct, copy-pasted with love and precision 🫶

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👑 Members 👑

• hw — the Clock hw struct. your main character, the clock hardware rep 💅
• regmap — the device's regmap. all the register-access plumbing lives here ✨
• div_offset — register offset for dividers. where the divider party's at 📍
• info — device info. the deets, the lore, the const struct clk_si570_info * of it all 🦋
• fxtal — factory xtal frequency. straight from the factory, u64, iconic 🌈
• n1 — clock divider N1. she divides 👑
• hs_div — clock divider HSDIV. she also divides, highkey 🔥
• rfreq — clock multiplier RFREQ. now this one multiplies, u64 and thriving ⭐
• frequency — current output frequency, also u64, literally the number we all care about 💖
• i2c_client — I2C client pointer. the connection to the outside world, fr fr 🧚

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🔍 SEE ALSO 🔍

• Kernel file ./drivers/clk/clk-si570.c and struct clk_si570_info(9)
• si570_get_divs(9)
• si570_get_defaults(9)
• si570_update_rfreq(9)
• si570_calc_divs(9)
• si570_set_frequency(9)
• si570_set_frequency_small(9)

lowkey go read those if you wanna know how the divs actually get divvied — this page is just the struct, bestie, don't @ me 😭

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and that's the whole page!! sign-off time: this gem came from ./drivers/clk, dated October 2026, and bless its heart it's still titled struct clk_si570(9) 💜 slay, bye 🦋