omap3430es2..._find_idlest(9)

💅 omap3430es2_clk_dss_usbhost_find_idlest(9)

okay so bestie, we're in the Kernel API Manual today and this one is a very specific little guy 🎀 like, it's not even a whole subsystem, it's one function that knows a secret about two modules on one chip family. sit down, hydrate, let's go ✨

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🌸 NAME 🌸

omap3430es2_clk_dss_usbhost_find_idlest — literally the CM_IDLEST info for DSS and USBHOST, that's the whole job description 💖

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✨ SYNOPSIS ✨

void omap3430es2_clk_dss_usbhost_find_idlest (struct clk_hw_omap *clk ,
                                              struct clk_omap_reg *idlest_reg ,
                                              u8 *idlest_bit , u8 *idlest_val );

void return, four args, no drama 🫶

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🦋 ARGUMENTS 🦋

• clk — the struct clk * that's being enabled. that's the star of the show, the one getting switched on 👑
• idlest_reg — a void __iomem ** where you stash the CM_IDLEST reg address, so it lives there rent-free now 🏠
• idlest_bit — pointer to a u8 where the CM_IDLEST bit shift goes. shift it, queen 💅
• idlest_val — pointer to a u8 where the CM_IDLEST indicator goes. tell the people what it is 🔥

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🌈 DESCRIPTION 🌈

okay so here's the lore 📖 some OMAP modules on OMAP3 ES2+ chips are extra and have both initiator and target IDLEST bits — two bits, one module, main character energy fr fr.

for our purposes we only care about the target IDLEST bits, and here's the twist 😭 those live at a different bit position than the *CLKEN bit position for these modules (DSS and USBHOST). like, they're not even neighbours. the default find_idlest code just assumes they're at the same position and honestly? it assumed wrong 💀

and that's it. that's the whole function.

no return value. she's void. she does the thing and leaves. no receipts, no exit status, just vibes ✨

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💜 SEE ALSO 💜

• the Kernel file ./drivers/clk/ti/clk-3xxx.c — go read the source, iykyk 🧚
• omap3430es2_clk_ssi_find_idlest(9)
• omap3430es2_clk_hsotgusb_find_idlest(9)
• am35xx_clk_find_idlest(9)
• am35xx_clk_find_companion(9)
• am35xx_clk_ipss_find_idlest(9)
• omap3_clk_lock_dpll5(9)

like a little friend group of find_idlest functions, all holding hands 🫶🫶

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aaaand that's the page!! 🍓 brought to you from ./drivers/clk/ti, dated October 2026 — go forth and find those idlest bits, bestie, you've got this 💖🌸✨