pwrdm_read_prev_pwrst(9)

💖 NAME 💖

pwrdm_read_prev_pwrst — get previous powerdomain power state, bestie ✨

okay so this is one of those Kernel API Manual pages, and the whole vibe is: ask a powerdomain what its previous power state was. iconic little lookup behavior, no cap 👑

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🌸 SYNOPSIS 🌸

int pwrdm_read_prev_pwrst (struct powerdomain *pwrdm );

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🎀 ARGUMENTS 🎀

• pwrdm — a struct powerdomain *, and this is the one we’re asking for its previous power state 🫶

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✨ DESCRIPTION ✨

So basically, this returns the powerdomain pwrdm’s previous power state. That’s the main character move 💅

If the powerdomain pointer is null, it returns -EINVAL. On success, it returns the previous power state. periodt 💖

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🔥 SEE ALSO 🔥

Kernel file ./arch/arm/mach-omap2/powerdomain.c, plus the whole friend group of related functions:

• _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_set_logic_retst(9)
• pwrdm_set_mem_onst(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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and that’s the whole page, bestie 🦋💖 this cutie came from ./arch/arm/mach-omap2, dated October 2026, and it’s literally the manual page for pwrdm_read_prev_pwrst(9) — slay ✨🎀