linux-kernel - Re: [PATCH] ARM: at91: pm: change BU Power Switch to automatic mode

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <32b1ae9d-f55b-43d0-bb24-1fd486440ab6@tuxon.dev>
Date: Sun, 8 Dec 2024 17:48:11 +0200
From: Claudiu Beznea <claudiu.beznea@...on.dev>
To: nicolas.ferre@...rochip.com,
 Alexandre Belloni <alexandre.belloni@...tlin.com>
Cc: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
 Cristian Birsan <cristian.birsan@...rochip.com>
Subject: Re: [PATCH] ARM: at91: pm: change BU Power Switch to automatic mode



On 25.11.2024 18:56, nicolas.ferre@...rochip.com wrote:
> From: Nicolas Ferre <nicolas.ferre@...rochip.com>
> 
> Change how the Backup Unit Power is configured and force the
> automatic/hardware mode.
> This change eliminates the need for software management of the power
> switch, ensuring it transitions to the backup power source before
> entering low power modes.
> 
> This is done in the only locaton where this swich was configured. It's
> usually done in the bootloader.
> 
> Previously, the loss of the VDDANA (or VDDIN33) power source was not
> automatically compensated by an alternative power source. This resulted
> in the loss of Backup Unit content, including Backup Self-refresh low
> power mode information, OTP emulation configuration, and boot
> configuration, for instance.
> 
> Signed-off-by: Nicolas Ferre <nicolas.ferre@...rochip.com>

I've added the fixes tag, s/locaton/location, s/swich/switch.

Applied to at91-soc, thanks!