linux-kernel - Re: [PATCH v2 1/2] hwmon: (pwm-fan) add option to leave fan on shutdown

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Message-ID:
 <OSQPR06MB72524578F1E5BA93772A12728B4B2@OSQPR06MB7252.apcprd06.prod.outlook.com>
Date: Tue, 29 Oct 2024 02:34:55 +0000
From: Billy Tsai <billy_tsai@...eedtech.com>
To: Akinobu Mita <akinobu.mita@...il.com>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>
CC: "linux-hwmon@...r.kernel.org" <linux-hwmon@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>, Jean Delvare
	<jdelvare@...e.com>, Guenter Roeck <linux@...ck-us.net>, Rob Herring
	<robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
	<conor+dt@...nel.org>
Subject: Re: [PATCH v2 1/2] hwmon: (pwm-fan) add option to leave fan on
 shutdown

> This adds an optional property "retain-state-shutdown" as requested by
> Billy Tsai.

> Billy said:
>  "Our platform is BMC that will use a PWM-FAN driver to control the fan
>  on the managed host. In our case, we do not want to stop the fan when
>  the BMC is reboot, which may cause the temperature of the managed host
>  not to be lowered."

I confirmed that it works properly.

Reviewed-by: Billy Tsai <billy_tsai@...eedtech.com>
Tested-by: Billy Tsai <billy_tsai@...eedtech.com>

Thanks