"Datta, Shubhrajyoti" [off-list ref] writes:

[...]

quoted

Subject: Re: [PATCH v6 8/8] Input: omap4 - pm runtime

Abraham Arce [off-list ref] writes:

quoted

Enable pm runtime in driver

So power is enabled on probe and cut on _remove().  Did you consider
doing any more fine grained PM for this device?  For example, cutting
power after some inactivity timer and re-enabling on a
keypress/interrupt?

My idea is that the clock needs to be on to get interrupts (OMAP4 the
control is at module level and ick/fclk level control is
difficult). So disabling will prevent interrupts.  The keypad is in
wakeup domain which is always on. So the power impact may be minimal.

What do you think.

I think the changelog needs to be updated to describe the reasons behind
the decisions made.

Kevin