omap3_prm_re...ure_io_chain(9)

🎀 omap3_prm_re...ure_io_chain(9) 🎀

okay so bestie, welcome to the Kernel API Manual ✨ this one's a little kernel-side function and she's lowkey iconic, so let's get into it 💅

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🌸 NAME 🌸

omap3_prm_reconfigure_io_chain — clear latches and reconfigure I/O chain 🦋

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⭐ SYNOPSIS ⭐

void omap3_prm_reconfigure_io_chain (void );

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💖 ARGUMENTS 💖

• void — no arguments. that's it. nothing. zero. she takes no notes, no params, no energy drain 🫶

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✨ DESCRIPTION ✨

So what she does 👑 she clears any previously-latched I/O wakeup events, and she makes sure the I/O wakeup gates are aligned with the current mux settings. that's the whole vibe check, fr fr 💅

The way she pulls it off is honestly so satisfying 😭 — she asserts WUCLKIN, then waits for WUCLKOUT to be asserted, and then deasserts WUCLKIN and clears the ST_IO_CHAIN WKST bit. iconic behavior, no cap ✨

There's no return value — she returns void, i.e. nothing, she just does the thing and leaves 🌈

🚨 okay important heads-up bestie 🚨 these registers are only available in 3430 es3.1 and later. if you're on anything before that, she is literally not available, so don't come for her 💀

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🦋 SEE ALSO 🦋

Kernel file ./arch/arm/mach-omap2/prm3xxx.c — go read her neighbors, they're all slaying too 💜

• omap3xxx_prm_dpll3_reset(9)
• omap3xxx_prm_read_pending_irqs(9)
• omap3xxx_prm_ocp_barrier(9)
• omap3xxx_prm_save_and_clear_irqen(9)
• omap3xxx_prm_restore_irqen(9)
• omap3xxx_prm_clear_mod_irqs(9)
• omap3_prm_reset_modem(9)
• omap3_prm_init_pm(9)
• omap3430_pre_es3_1_reconfigure_io_chain(9)
• omap3xxx_prm_enable_io_wakeup(9)
• omap3xxx_prm_read_reset_sources(9)
• omap3xxx_prm_iva_idle(9)
• omap3xxx_prm_clear_global_cold_reset(9)

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anyway that's the whole page, hope it ate 🍓 this cutie lives in ./arch/arm/mach-omap2 and the manual's dated October 2026 — mwah, go forth and reconfigure those I/O chains bestie 💖🎀🧚