hwmon: (gpio-fan) Add regulator support

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FANs might be supplied by a regulator which needs to be enabled as well.
This is implemented using runtime PM. Every time speed_index changes from
0 to non-zero and vise versa RPM is resumed or suspended.
Intitial RPM state is determined by initial value of speed_index.

Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Link: https://lore.kernel.org/r/20250409065430.1413439-1-alexander.stein@ew.tq-group.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

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Alexander Stein 2025-04-09 08:54:26 +02:00 • committed by Guenter Roeck

parent 9b116ba6c9

commit 0d01110e63

1 changed files with 87 additions and 16 deletions

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drivers/hwmon/gpio-fan.c

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