Re: [PATCH 3/3] Input: atmel_mxt_ts - use runtime PM autosuspend for idle config

[Tony Lindgren]

* Tony Lindgren <tony@xxxxxxxxxxx> [200318 23:10]:
> Let's enable runtime PM autosuspend with a default value of 600 ms and
> switch to idle power config for runtime_suspend. The autosuspend timeout
> can also be configured also via userspace with value of -1 disabling the
> autosuspend.
> 
> Let's only allow autosuspend if MXT_SUSPEND_T9_CTRL is not configured for
> suspend_mode as MXT_SUSPEND_T9_CTRL mode powers off the controller.

Hmm looks like with autosuspend enabled I need a short swipe instead of
just clicking on the screen to produce a click. So we may want to default
to autosuspend timeout of -1 and have user set it when suitable and no
other fix is found.

On droid4, I've confirmed that disabling autosuspend fixes the issue FYI:

# echo on > /sys/bus/i2c/drivers/atmel_mxt_ts/1-004a/power/control

Regards,

Tony