cm_split_idlest_reg(9)

💅 cm_split_idlest_reg(9) — like, the Kernel API Manual era 🎀

okay bestie, so this is a page from the Kernel API Manual for cm_split_idlest_reg(9), and I promise it's less scary than it sounds ✨

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🌸 NAME 🌸

cm_split_idlest_reg — split that CM_IDLEST reg addr into its components, slay 💅

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✨ SYNOPSIS ✨

int cm_split_idlest_reg (struct clk_omap_reg *idlest_reg , s16
*prcm_inst , u8 *idlest_reg_id );

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🦋 ARGUMENTS 🦋

• idlest_reg — the CM_IDLEST* virtual address, literally. that's the one we're splitting 🫶
• prcm_inst — a pointer to an s16 where we hand back the PRCM instance offset 💖
• idlest_reg_id — a pointer to a u8 where the CM_IDLESTx register ID goes back to you 🎀

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💀 DESCRIPTION 💀

so you give it an absolute CM_IDLEST register address as idlest_reg, right? and it passes the PRCM instance offset back to the caller through prcm_inst, and the IDLEST register ID back through idlest_reg_id 👑

Returns -EINVAL upon error, or 0 upon success. simple as that, no cap ✨

🙈 XXX note, and this one's important: this function is only needed until absolute register addresses are removed from the OMAP struct clk records. it's giving temporary-icon energy, iykyk 💀

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🔥 SEE ALSO 🔥

Kernel file ./arch/arm/mach-omap2/cm_common.c — go read it, bestie 📖

• omap_cm_wait_module_ready(9)
• omap_cm_wait_module_idle(9)
• omap_cm_module_enable(9)
• omap_cm_module_disable(9)
• cm_register(9)
• cm_unregister(9)
• omap2_cm_base_init(9)
• omap_cm_init(9)

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and that's the whole page, periodt 🌈

💜 cute lil sign-off: this one lives at ./arch/arm/mach-omap2 and the date on it is October 2026 — iconic, no notes 🎀🫶