clk_hw_get_dev(9)

💖 clk_hw_get_dev(9) — like, the Kernel API Manual page you didn't know you needed 💖

okay so bestie, buckle up, because we're diving into the Kernel API Manual (yes, that's the manual name, it's giving official ✨) and this little function is genuinely so useful. no cap.

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🌸 NAME 🌸

clk_hw_get_dev — get the device from a hardware clock. that's it. that's the whole vibe. 🎀

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✨ SYNOPSIS ✨

struct device * clk_hw_get_dev (const struct clk_hw *hw );

literally one function, one pointer, zero drama. iykyk 💅

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🦋 ARGUMENTS 🦋

• hw — the clk_hw pointer you're pulling the struct device out of. hand it over and it does the thing. 🫶

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💜 DESCRIPTION 💜

so this is a helper function 🙈 — a little sidekick — whose whole job is getting the struct device that's associated with a hardware clock. iconic behaviour, honestly.

here's the tea though ☕: some clock controllers (thinking specifically of the ones registered with CLK_OF_DECLARE 👀) may not have provided a device pointer while they were registering the clock. so yeah, sometimes there's just… no device to find. and that's fine, the helper knows the assignment. 🔥

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👑 RETURN 👑

it returns the struct device associated with the clock 💖 — or NULL if there is none. and to be clear, NULL is a totally valid answer here, not a fail. vibe check passed either way. ⭐

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🌈 SEE ALSO 🌈

okay this list is long, bestie, but you asked for the whole thing and i would never gatekeep 🫶. go read these:

• the kernel file ./include/linux/clk-provider.h 📁
• 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)
• 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)
• 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)
• 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_of_node(9)

like i said. a lot. but every single one is in there, so go off, queen. 👑

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🌟 cute sign-off 🌟

and that's the page!! sourced from ./include/linux (the version/location, mwah 💋), dated October 2026 — mark your calendars bestie, she's from the future 🦋. thanks for reading, ily, go get that struct device 💅✨🎀