hwmon: (pwm-fan) split __set_pwm into locked/unlocked functions
Regular calls to set_pwm don't hold the mutex, but the upcoming update_enable support needs to call set_pwm with the mutex being held. So provide the previous behavior in set_pwm (handling the lock), while adding __set_pwm which assumes the lock being held. Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20220914153137.613982-5-alexander.stein@ew.tq-group.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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