On Thursday 13 November 2014 04:35 PM, Arnd Bergmann wrote:

On Thursday 13 November 2014 16:29:02 Laxman Dewangan wrote:

quoted

Yes, I posted patch for interrupt key on context on key connected to
PMIC-Onkey.
On PMIC, there is onkey pin input which generates interrupt only when it
toggles. So if we have key (power key on our platforms) connected to
this pin then we will only get interrupt from PMIC.
Instead of implementing full interrupt key driver, I added this support
on existing gpio keys.

So is this code still in place, and do you think it's worthwhile to
have a DT binding for it?

Could the PMIC register a gpio controller instead?

This pin is not supported as GPIO and so exporting the functionality 
through GPIO is not feasible until we treat the onkey as GPIO pin 
without actual gpio functionality i..e only interrupt functionality.