pwrdm_get_mem_bank_count(9)

💖 NAME 💖

Okay bestie, this is the pwrdm_get_mem_bank_count(9) page from the Kernel API Manual, and the name is literally: get number of memory banks in this powerdomain. Slay, concise, we love her. ✨

🌸 SYNOPSIS 🌸

int pwrdm_get_mem_bank_count (struct powerdomain *pwrdm );

🎀 ARGUMENTS 🎀

• pwrdm — a struct powerdomain *; this is the powerdomain you're asking about, bestie. 🫶

🦋 DESCRIPTION 🦋

So here's the tea: this function returns the number of controllable memory banks in the powerdomain pwrdm, and the count starts with 1. Starting with one. Not zero. Iconic behavior. 💅

And if the powerdomain pointer is null? Not the vibe. It returns -EINVAL. 😭 No cap.

🌈 SEE ALSO 🌈

Kernel file ./arch/arm/mach-omap2/powerdomain.c, plus the whole squad:

• _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_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_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)

Signed, sealed, delivered from ./arch/arm/mach-omap2 — October 2026 🎀 this page is pwrdm_get_mem_bank_count(9), and it's giving tiny-but-iconic. 💜