pwrdm_set_mem_retst(9)

💖 pwrdm_set_mem_retst(9) 💖

okay bestie, this is the Kernel API Manual page for pwrdm_set_mem_retst(9) — yes, we're doing kernel powerdomain memory retention stuff, and it's lowkey iconic. slay. Let's get into it 🫶

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✨ NAME ✨

pwrdm_set_mem_retst — set memory power state while powerdomain in RET

🌸 SYNOPSIS 🌸

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

bestie, that's the whole signature. The way it just sits there being all kernel-y… 🎀

🎀 ARGUMENTS 🎀

• pwrdm — struct powerdomain * to set.
• bank — memory bank number to set (0-3).
• pwrst — one of the PWRDM_POWER_* macros.

🦋 DESCRIPTION 🦋

Set the next power state pwrst that memory bank bank of the powerdomain pwrdm will enter when the powerdomain enters the RETENTION state.

bank will be a number from 0 to 3, and represents different types of memory, depending on the powerdomain. pwrst will be either RETENTION or OFF, if supported.

The vibe check on return values, no cap:

• -EINVAL — returns if the powerdomain pointer is null or the target power state is not supported for this memory bank.
• -EEXIST — returns if the target memory bank does not exist or is not controllable.
• 0 — returns upon success.

🌈 SEE ALSO 🌈

Here's the whole friend group:

• Kernel file: ./arch/arm/mach-omap2/powerdomain.c
• _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_onst(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, bestie 💅 it lives under ./arch/arm/mach-omap2, dated October 2026, and yes it's still the pwrdm_set_mem_retst(9) manual. periodt. byeeee 🫶✨