Hi,

On Mon, Jul 09, 2018 at 10:15:35AM +0200, Pavel Machek wrote:
> Do you have vibrations on d4 working?
> I believe I have required drivers enabled, but no luck:
> 
> user@devuan:/sys/bus/platform/drivers$ ls pwm-vibrator/
> bind  uevent  unbind
> user@devuan:/sys/bus/platform/drivers$ ls omap-dmtimer-pwm/
> bind  uevent  unbind

Have you checked probe deferrals?

-- Sebastian