ENUM ROMCODE_READ(9)

💖 enum romcode_read(9) — the Kernel API Manual glow-up 💖

okay so bestie, welcome to the Kernel API Manual entry for enum romcode_read, which is genuinely one of those little handshake enums that makes the whole power-management friendship work. Sit down, hydrate, let's go 🫶

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✨ NAME ✨

enum romcode_read — the Romcode message that gets written by XP70 and read by A9 💅 iykyk

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🌸 SYNOPSIS 🌸

enum romcode_read {
    INIT ,
    FS_2_DS ,
    END_DS ,
    DS_TO_FS ,
    END_FS ,
    SWR ,
    END_SWR

};

literally the whole enum, no cap, not one member left out 👑

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🎀 Constants 🎀

these are the members, bestie, and every single one is doing main character energy in the romcode field:

• INIT — the init value, used when the romcode field is not used at all. it's the "no thoughts, head empty" starting state 🙈
• FS_2_DS — set when the power state is going from ApExecute to ApDeepSleep. the little "see you in a bit" transition 🌙
• END_DS — set when the ApDeepSleep power state has been reached, coming from the ApExecute state. like, we're here, we made it ✨
• DS_TO_FS — set when the power state is going from ApDeepSleep to ApExecute. bestie is waking up ☀️
• END_FS — set when the ApExecute power state has been reached, coming from the ApDeepSleep state. awake era confirmed 💅
• SWR — set when the power state is going to ApReset. buckle up, reset moment 🔥
• END_SWR — set when the xp70 has finished executing the ApReset actions and is waiting for the romcode acknowledgment to go to self-reset. the "okay I'm done, can I go now" energy 💀

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🦋 SEE ALSO 🦋

the whole friend group lives in the kernel file ./include/linux/mfd/db8500-prcmu.h, and honestly the roster is iconic:

• enum state(9)
• enum ret_state(9)
• enum clk_arm(9)
• enum clk_gen(9)
• enum romcode_write(9)
• enum ap_pwrst(9)
• enum ap_pwrst_trans(9)
• enum hw_acc_state(9)
• enum dvfs_stat(9)
• enum sva_mmdsp_stat(9)
• enum sia_mmdsp_stat(9)
• enum mbox_to_arm_err(9)
• enum sia_sva_pwr_policy(9)
• enum auto_enable(9)
• enum prcmu_power_status(9)
• enum prcmu_wdog_id(9)
• enum ape_opp(9)
• enum arm_opp(9)
• enum ddr_opp(9)
• enum ddr_pwrst(9)
• struct prcmu_auto_pm_config(9)

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🌈 that's the whole page, bestie — go read the rest of the header file and slay 💜

⭐ source path ./include/linux/mfd, version/date October 2026, manual enum romcode_read(9) — mwah, kissing this sign-off goodbye, see u in the group chat 🍓🧚💖