devm_clk_hw_..._parent_data(9)

💅 devm_clk_hw_..._parent_data — from the Kernel API Manual, section 9, bestie

Okay so this is a kernel manpage, section 9, and the title is literally devm_clk_hw_..._parent_data(9) — yes the elision is doing a lot of work there, we love a mysterious queen. The function it's actually about is devm_clk_hw_register_divider_parent_data, and no cap, the name is longer than my attention span. Let's get into it 🎀

---

✨ NAME ✨

devm_clk_hw_register_divider_parent_data — registers a divider clock with the clock framework. That's it, that's the whole job. Slay. 🕰️

---

🌸 SYNOPSIS 🌸

devm_clk_hw_register_divider_parent_data (dev , name , parent_data ,
       flags , reg , shift , width , clk_divider_flags , lock );

Nine arguments. Nine. Bestie she is thorough and honestly? Respect. 💅

---

🦋 ARGUMENTS 🦋

So literally every one of these, one by one, because we do not skip:

• dev — the device that's registering this clock. Like, whose clock is it? This one's. 🫶
• name — the name of this clock. Give her a cute name, she deserves one.
• parent_data — the parent clk data. That's the parent, in data form. iykyk.
• flags — framework-specific flags. Framework-specific, meaning: read the docs before you sent it, babe.
• reg — the register address to adjust the divider. This is where the divider lives. Physical location energy.
• shift — how many bits to shift the bitfield. Yes you have to count. Yes it matters. 😭
• width — the width of the bitfield. Not to be confused with height. There is no height. 🌈
• clk_divider_flags — divider-specific flags for this clock. Different flags! Divider flags! Not the other flags! Keep them straight bestie 💀
• lock — the shared register lock for this clock. Sharing is caring, but also sharing is a lock, so.

---

👑 SEE ALSO 👑

Bestie, the cross-reference list on this one is extensive and I'm obsessed. She links to literally everyone. The kernel file is ./include/linux/clk-provider.h — that's the neighborhood she lives in.

First, the general clock framework crew:

• clk framework flags(9)
• struct clk_rate_request(9)
• struct clk_duty(9)
• struct clk_spread_spectrum(9)
• struct clk_ops(9)
• struct clk_parent_data(9)
• struct clk_init_data(9)
• struct clk_hw(9)

Then the fixed-rate girlies:

• struct clk_fixed_rate(9)
• clk_hw_register_fixed_rate(9)
• devm_clk_hw_register_fixed_rate(9)
• devm_clk_hw_register_fixed_rate_parent_data(9)
• clk_hw_register_fixed_rate_parent_hw(9)
• clk_hw_register_fixed_rate_parent_data(9)
• clk_hw_register_fixed_rate_with_accuracy(9)
• clk_hw_register_fixed_rate_with_accuracy_parent_hw(9)
• clk_hw_register_fixed_rate_with_accuracy_parent_data(9)
• clk_hw_register_fixed_rate_parent_accuracy(9)

The gate squad:

• struct clk_gate(9)
• clk_hw_register_gate(9)
• clk_hw_register_gate_parent_hw(9)
• clk_hw_register_gate_parent_data(9)
• devm_clk_hw_register_gate(9)
• devm_clk_hw_register_gate_parent_hw(9)
• devm_clk_hw_register_gate_parent_data(9)

The divider family — our main character's actual family:

• struct clk_divider(9)
• clk_register_divider(9)
• clk_hw_register_divider(9)
• clk_hw_register_divider_parent_hw(9)
• clk_hw_register_divider_parent_data(9)
• clk_hw_register_divider_table(9)
• clk_hw_register_divider_table_parent_hw(9)
• clk_hw_register_divider_table_parent_data(9)
• devm_clk_hw_register_divider(9)
• devm_clk_hw_register_divider_parent_hw(9)
• devm_clk_hw_register_divider_table(9)

And the rest of the extended universe:

• struct clk_mux(9)
• struct clk_fixed_factor(9)
• devm_clk_hw_register_fixed_factor_parent_hw(9)
• struct clk_fractional_divider(9)
• struct clk_multiplier(9)
• clk_hw_get_dev(9)
• clk_hw_get_of_node(9)

---

That's every single one, fr fr. Forty-something references and we did not drop a single one, because dropping references is not the vibe. 🧚

---

🍓 sign-off 🍓

This little beauty ships out of ./include/linux, dated October 2026, and she's filed under devm_clk_hw_..._parent_data(9) in the Kernel API Manual. Go forth and register your dividers, bestie — you're gonna eat 💖✨