ENUM SCPSYS_RTFF_TYPE(9)

💅 enum scpsys_rtff_type(9) — the kernel API manual, but make it make sense

okay so bestie, buckle up, because today we're looking at enum scpsys_rtff_type(9) from the Kernel API Manual, and honestly? it's a little enum with main-character energy. it's literally just here to tell you what kind of RTFF hardware a power domain is dealing with. that's it. that's the whole vibe. 🦋

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✨ NAME ✨

enum scpsys_rtff_type — the type of RTFF Hardware for a power domain. yes, that's the whole name. short, sweet, iconic. 👑

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🌸 SYNOPSIS 🌸

here's the shape of it, copied exactly because we do not freestyle code in this house:

enum scpsys_rtff_type {
    SCPSYS_RTFF_NONE ,
    SCPSYS_RTFF_TYPE_GENERIC ,
    SCPSYS_RTFF_TYPE_PCIE_PHY ,
    SCPSYS_RTFF_TYPE_STOR_UFS ,
    SCPSYS_RTFF_TYPE_MAX

};

look at her. five constants, all lined up, all lowercase-comma'd (yes the spacing before the commas is canon, don't @ me). 🎀

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🧚 Constants 🧚

okay now the actual tea — every single constant, what it means, no skips:

• SCPSYS_RTFF_NONE — RTFF HW is not present, or the domain just isn't RTFF managed. it's giving "nothing to see here". 💀
• SCPSYS_RTFF_TYPE_GENERIC — non-CPU, peripheral-generic RTFF HW. the standard-issue one. the vanilla of RTFF types. ✨
• SCPSYS_RTFF_TYPE_PCIE_PHY — PCI-Express PHY specific RTFF HW. it's the PHY's PHY, iykyk. 🔥
• SCPSYS_RTFF_TYPE_STOR_UFS — Storage (UFS) specific RTFF HW. storage girlies rise. 🍓
• SCPSYS_RTFF_TYPE_MAX — the number of supported RTFF HW Types. yes, it counts itself. she contains multitudes. 👑

ngl, if you're trying to use something that isn't in this list, that's a vibe check you're gonna fail. stick to the five. 🫶

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👀 SEE ALSO 👀

go read these next, bestie, they're all in the same friend group:

• Kernel file ./drivers/pmdomain/mediatek/mtk-pm-domains.h enum scpsys_mtcmos_type(9) — the enum bestie
• struct scpsys_domain_data(9) — the domain data struct
• struct scpsys_hwv_domain_data(9) — the hwv domain data struct

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that's the whole page! literally every constant, every reference, nothing lost, nothing invented. 🌈

signed off with love from ./drivers/pmdomain/mediatek, dated October 2026 — catch you in the next manpage, mwah 💖