pwrdm_set_mem_onst(9)

💖 pwrdm_set_mem_onst 💖

okay bestie, welcome to the Kernel API Manual ✨ this one's called pwrdm_set_mem_onst(9) and it's literally the glow-up planner for your memory power states 🫶

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🌸 NAME 🌸

pwrdm_set_mem_onst — set memory power state while powerdomain ON 💅

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✨ SYNOPSIS ✨

int pwrdm_set_mem_onst (struct powerdomain *pwrdm , u8 bank , u8 pwrst
);

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🎀 ARGUMENTS 🎀

• pwrdm — the struct powerdomain * you wanna set, bestie. that's the whole vibe target 🎯
• bank — the memory bank number to set, and it's 0-3 (yes, only four of them, iconic range tbh) 🔢
• pwrst — one of the PWRDM_POWER_* macros. pick your state, queen 👑

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🦋 DESCRIPTION 🦋

so what this actually does: it sets the next power state pwrst that memory bank bank of the powerdomain pwrdm will enter when the powerdomain enters the ON state. the way that works is, bank is a number from 0 to 3, and it represents different types of memory depending on the powerdomain — so like, same number, different meaning, iykyk 🧚

ngl the returns here matter, so pay attention: it returns -EINVAL if the powerdomain pointer is null or the target power state isn't supported for this memory bank. it returns -EEXIST if the target memory bank doesn't exist or isn't controllable (rude, but okay). and it returns 0 upon success — slay 💖

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🌈 SEE ALSO 🌈

the kernel file ./arch/arm/mach-omap2/powerdomain.c and honestly the whole friend group:

• _pwrdm_register(9)
• _pwrdm_save_clkdm_state_and_activate(9)
• _pwrdm_restore_clkdm_state(9)
• pwrdm_register_platform_funcs(9)
• pwrdm_register_pwrdms(9)
• pwrdm_complete_init(9)
• pwrdm_lock(9)
• pwrdm_unlock(9)
• pwrdm_lookup(9)
• pwrdm_for_each(9)
• pwrdm_add_clkdm(9)
• pwrdm_get_mem_bank_count(9)
• pwrdm_set_next_pwrst(9)
• pwrdm_read_next_pwrst(9)
• pwrdm_read_pwrst(9)
• pwrdm_read_prev_pwrst(9)
• pwrdm_set_logic_retst(9)
• pwrdm_set_mem_retst(9)
• pwrdm_read_logic_pwrst(9)
• pwrdm_read_prev_logic_pwrst(9)
• pwrdm_read_logic_retst(9)
• pwrdm_read_mem_pwrst(9)
• pwrdm_read_prev_mem_pwrst(9)
• pwrdm_read_mem_retst(9)
• pwrdm_clear_all_prev_pwrst(9)
• pwrdm_enable_hdwr_sar(9)
• pwrdm_disable_hdwr_sar(9)
• pwrdm_has_hdwr_sar(9)
• pwrdm_get_valid_lp_state(9)
• omap_set_pwrdm_state(9)
• pwrdm_save_context(9)
• pwrdm_restore_context(9)

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that's the whole page, no cap 💅 and like any good group chat, it's got a sign-off: this one lives down in ./arch/arm/mach-omap2, dated October 2026, manual name pwrdm_set_mem_onst(9) — periodt 🎀💜