clk_hw_regis..._parent_data(9)

💖 clk_hw_regis..._parent_data(9) 💖

okay so real talk, bestie — this is a page from the Kernel API Manual, and the function name is so long it literally got truncated to clk_hw_regis..._parent_data. iconic behavior tbh. anyway, let's get into it 🫶

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✨ NAME ✨

clk_hw_register_gate_parent_data — registers a gate clock with the clock framework. that's it, that's the whole vibe. you're making a gate clock and telling the clock framework about it 💅

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🌸 SYNOPSIS 🌸

clk_hw_register_gate_parent_data (dev , name , parent_data , flags , reg
, bit_idx , clk_gate_flags , lock );

eight arguments. EIGHT. not me counting them like a spreadsheet 😭 ok let's go through every single one, no skipping, periodt.

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🎀 ARGUMENTS 🎀

• dev — the device that is registering this clock. it's the one signing the paperwork, basically the main character here 👑
• name — name of this clock. give it a cute one, it's gonna live in the framework forever 💜
• parent_data — parent clk data. it's the struct clk_parent_data situation, aka where this clock gets its ancestry from 🧬
• flags — framework-specific flags for this clock. the generic ones, not the gate-y ones — those come later, keep scrolling 🌈
• reg — register address to control gating of this clock. this is where the on/off switch physically lives 🔥
• bit_idx — which bit in the register controls gating of this clock. one specific bit. choose wisely 🎯
• clk_gate_flags — gate-specific flags for this clock. yes, different from flags. yes, you need both. i don't make the rules ✨
• lock — shared register lock for this clock. it's the group-chat mute button so nobody touches the register at the same time 💀

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🦋 SEE ALSO 🦋

okay this list is LONG, so buckle up — every single reference, coming at you 🌸

first up, the kernel file itself: ./include/linux/clk-provider.h, plus clk framework flags(9) — and then the whole extended family:

• 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)
• 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)
• struct clk_gate(9)
• clk_hw_register_gate(9)
• clk_hw_register_gate_parent_hw(9)
• devm_clk_hw_register_gate(9)
• devm_clk_hw_register_gate_parent_hw(9)
• devm_clk_hw_register_gate_parent_data(9)
• 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_parent_data(9)
• devm_clk_hw_register_divider_table(9)
• 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)

like i said. LONG. but now you know the whole clock-provider friend group 🫶

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lowkey a flex that you made it to the bottom of a kernel API page. your brain is huge, no cap 💖✨

and that's a wrap, bestie! this gem lives in ./include/linux and the page is dated October 2026 — so go forth, register those gate clocks, and slay 💅🎀🦋