sdw_bus_clk_stop(9)

💅 sdw_bus_clk_stop — the Kernel API Manual, but make it cute

okay so bestie, this page is all about sdw_bus_clk_stop from the Kernel API Manual and it's genuinely so straightforward, i promise. it's the little function that says "alright girlies, clock's done, everybody out" ✨

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✨ NAME ✨

sdw_bus_clk_stop — literally just stop the bus clock. that's it. that's the whole job. 🎀

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🌸 SYNOPSIS 🌸

int sdw_bus_clk_stop (struct sdw_bus *bus );

like, one call, one argument, returns an int. iconic minimalism fr fr 💜

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🦋 ARGUMENTS 🦋

• bus — your SDW bus instance. the main character of this whole operation 🫶

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⭐ DESCRIPTION ⭐

so here's the vibe: after you've prepared the Slaves for clock stop (that's the whole other function's job, we don't do it here, we're just the finisher), you stop the clock by broadcasting a write to the SCP_CTRL register. that's the whole mechanic. no cap. 🔥

basically everybody on the bus hears the announcement at once, and the clock goes night-night 💀✨

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👑 SEE ALSO 👑

the kernel file lives at ./drivers/soundwire/bus.c — go read it, it's giving lore 📖

and then all these siblings, in order, because i would never leave one out:

• sdw_bus_master_add(9)
• sdw_bus_master_delete(9)
• sdw_transfer(9)
• sdw_show_ping_status(9)
• sdw_transfer_defer(9)
• sdw_nread_no_pm(9)
• sdw_nwrite_no_pm(9)
• sdw_write_no_pm(9)
• sdw_read_no_pm(9)
• sdw_nread(9)
• sdw_nwrite(9)
• sdw_read(9)
• sdw_write(9)
• sdw_bus_prep_clk_stop(9) — the pre-game 🧚
• sdw_bus_exit_clk_stop(9) — the come-back 🦋
• sdw_handle_slave_status(9)

ngl, if you're touching clock stop, you probably also want sdw_bus_prep_clk_stop(9) first. like, do the prep, then the stop. that's the whole sequence, bestie 💅

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alright that's the page!! 🌈 this one came out of ./drivers/soundwire, dated October 2026, and it's filed under sdw_bus_clk_stop(9) if you ever need to find it again. mwah, go stop some clocks responsibly 💖✨🎀