Re: [PATCH 1/1] pwm: pca9685: fix gpio-only operation.

From: Sven Van Asbroeck
Date: Mon Apr 10 2017 - 23:35:45 EST


> How about implementing a real runtime PM in the driver? Then when the
> device is idle regardless of whether it is GPIO or PWM, the SLEEP bit is
> set and cleared accordingly.

You mean: increase the runtime_pm refcnt when a pwm/gpio is enabled,
and vice versa ? And don't touch the refcnt on pwm/gpio export/unexport?

Neat. I will test such a solution and try to post it within the next few days.