linux-kernel - Re: [PATCH v4 1/2] regulator: dt-bindings: pca9450: add PMIC_RST

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Message-ID: <a263ecd6-af04-4a21-b106-a9c208007c81@kernel.org>
Date: Sat, 13 Apr 2024 12:58:59 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Fabio Aiuto <fabio.aiuto@...icam.com>, Mark Brown <broonie@...nel.org>,
 Liam Girdwood <lgirdwood@...il.com>, Rob Herring <robh@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>
Cc: devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 Matteo Lisi <matteo.lisi@...icam.com>,
 Mirko Ardinghi <mirko.ardinghi@...icam.com>
Subject: Re: [PATCH v4 1/2] regulator: dt-bindings: pca9450: add PMIC_RST_B
 warm reset property

On 12/04/2024 10:44, Fabio Aiuto wrote:
> The default configuration of the PMIC behavior makes the PMIC
> power cycle most regulators on PMIC_RST_B assertion. This power
> cycling causes the memory contents of OCRAM to be lost.
> Some systems needs some memory that survives reset and
> reboot, therefore add a property to mark the regulator as
> performing warm resets on PMIC_RST_B assertion.
> 
> Cc: Matteo Lisi <matteo.lisi@...icam.com>
> Cc: Mirko Ardinghi <mirko.ardinghi@...icam.com>
> Signed-off-by: Fabio Aiuto <fabio.aiuto@...icam.com>
> ---

Discussion continues in v3.

Best regards,
Krzysztof