at91_pm_switch_ba_to_auto(9)

💖 NAME 💖

at91_pm_switch_ba_to_auto — Configure Backup Unit Power Switch to automatic/hardware mode. This is from the Kernel API Manual, bestie 🫶✨

✨ SYNOPSIS ✨

void at91_pm_switch_ba_to_auto (void );

🫶 ARGUMENTS 🫶

• void — no arguments. Literally zero, bestie, she takes nothing 💅

🌸 DESCRIPTION 🌸

Okay so the Backup Unit Power Switch can be managed by software or by hardware — two modes, one icon 💖. Enabling hardware mode lets power transition automatically between VDDANA (or VDDIN33) and VDDBU (or VBAT, respectively), depending on whether those power sources are available ✨.

If the Backup Unit Power Switch is already in automatic mode, no action is required — she’s already slaying, no cap. If she’s in software-controlled mode, this switches her to automatic mode to enhance safety and eliminate the need for toggling between power sources. Periodt. 🎀

🔎 SEE ALSO 🔎

Kernel file ./arch/arm/mach-at91/pm.c — go peek, iykyk 👀

• struct at91_pm_bu(9)
• struct at91_pm_sfrbu_regs(9)
• enum at91_pm_eth_clk(9)
• enum at91_pm_eth(9)
• struct at91_pm_quirk_eth(9)
• struct at91_pm_quirks(9)
• struct at91_soc_pm(9)
• enum at91_pm_iomaps(9)

🎀 Cute sign-off: this page’s source/version is ./arch/arm/mach-at91, dated October 2026, for at91_pm_switch_ba_to_auto(9) — byeee bestie 💜✨