xiic_setclk(9)

💖 NAME 💖

okay so bestie, welcome to xiic_setclk(9) from the Kernel API Manual ✨ this one is literally called xiic_setclk — and it sets the configured clock rate. slay 💅

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✨ SYNOPSIS ✨

int xiic_setclk (struct xiic_i2c *i2c );

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🎀 ARGUMENTS 🎀

• i2c — Pointer to the xiic device structure. iconic pointer behavior, no notes 💖

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🦋 DESCRIPTION 🦋

okay so the timing register values are calculated according to the input clock frequency and the configured scl frequency. for the full details, please refer the AXI I2C PG and NXP I2C Spec 📚✨

the supported frequencies are 100KHz, 400KHz and 1MHz. periodt 💅

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🌸 RETURN 🌸

• 0 on success (Supported frequency selected or not configurable in SW) 🫶
• -EINVAL on failure (scl frequency not supported or THIGH is 0) 😭

lowkey important: that -EINVAL case is the vibe check failing — scl not supported or THIGH being 0 is a no from the function 💀

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/i2c/busses/i2c-xiic.c
• struct xiic_i2c(9)
• struct timing_regs(9)

go read those if you want the whole friend group of related things, iykyk 👑💜

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catch you later bestie 🫶 this page came from ./drivers/i2c/busses, dated October 2026, and it’s serving full Kernel API Manual energy. periodt 💅✨