zl3073x_ref_...fsets_update(9)

💅 zl3073x_ref_phase_offsets_update

okay bestie, so this page is from the Kernel API Manual and it's all about zl3073x_ref_phase_offsets_update — yeah that name is a mouthful, i know, but she's iconic so we move 🎀

✨ NAME ✨

zl3073x_ref_phase_offsets_update — literally just updates the reference phase offsets, no cap 💖

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🦋 SYNOPSIS 🦋

int zl3073x_ref_phase_offsets_update (struct zl3073x_dev *zldev , int channel );

🌸 ARGUMENTS 🌸

• zldev — a pointer to the zl3073x_dev structure. that's your device bestie 🫶
• channel — the DPLL channel number, or -1 if you're not about that life 🙈

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💜 DESCRIPTION 💜

So the way this works: the function asks the device to update its phase offsets latch registers with the latest measured values. Very demure, very mindful.

There are 2 sets of latch registers, and you need to know both:

1. Up to 5 DPLL-to-connected-ref registers — these hold phase offset values between a particular DPLL channel and its connected input reference.
2. 10 selected-DPLL-to-all-ref registers — these hold phase offset values between the selected DPLL channel and all input references.

So here's the vibe check on which one you get:

• If the caller is interested in 2), it has to pass the DPLL channel number in the channel parameter 🔥
• If it's interested only in 1), then it should pass channel with a value of -1 ⭐

periodt. that's the whole routing situation 🧚

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💀 RETURN 💀

• 0 on success 💖
• <0 on error 😭

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👑 SEE ALSO 👑

Kernel file ./drivers/dpll/zl3073x/core.c and honestly the whole friend group:

zl3073x_read_u8(9), zl3073x_write_u8(9), zl3073x_read_u16(9), zl3073x_write_u16(9), zl3073x_read_u32(9), zl3073x_write_u32(9), zl3073x_read_u48(9), zl3073x_write_u48(9), zl3073x_poll_zero_u8(9), zl3073x_do_hwreg_op(9), zl3073x_read_hwreg(9), zl3073x_write_hwreg(9), zl3073x_update_hwreg(9), zl3073x_write_hwreg_seq(9), zl3073x_ref_freq_meas_latch(9), zl3073x_ref_freq_meas_update(9), zl3073x_dev_phase_meas_setup(9), zl3073x_dev_start(9), zl3073x_dev_stop(9), zl3073x_dev_probe(9)

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and that's the whole page bestie, mwah 💋 this lil cutie lives in ./drivers/dpll/zl3073x and dropped way back in October 2026 — go read her siblings, they ate too 🍓💅