[PATCH v7 3/3] hwmon: emc2305: Support configurable fan PWM at shutdown

[Guenter Roeck]

On Wed, Apr 29, 2026 at 09:59:55AM +0300, florin.leotescu at oss.nxp.com wrote:
> From: Florin Leotescu <florin.leotescu at nxp.com>
> 
> Some systems require fans to enter in a defined safe state during system
> shutdown or reboot handoff.
> 
> Add support for the optional Device Tree property "fan-shutdown-percent"
> to configure the shutdown PWM duty cycle per fan output.
> 
> If the property is present for a fan channel, the driver converts the
> configured percentage value to the corresponding PWM duty cycle and
> applies it during driver shutdown.
> 
> If the property is not present, the fan state remains unchanged.
> 
> Signed-off-by: Florin Leotescu <florin.leotescu at nxp.com>

I don't know if Sashiko's concerns are real; if sysfs accesses are still
possible during shutdown, lots of drivers have problems. With that in mind,
applied.

Thanks,
Guenter