Re: [PATCH 1/2] regulator: ltc3589: make IRQ optional
From: Lothar WaÃmann
Date: Thu Jan 21 2016 - 02:06:03 EST
Hi,
> On Wed, Jan 20, 2016 at 01:29:51PM +0100, Lothar WaÃmann wrote:
>
> > This pin is used as IRQ pin for the LTC3589 PMIC on the Ka-Ro
> > electronics TX48 module. Make the IRQ optional in the driver and use a
> > polling routine instead if no IRQ is specified in DT.
> > Otherwise the driver will continuously generate interrupts and make
> > the system unusable.
>
> How will the driver generate interrupts if there is no interrupt
> physically present in the system?
>
It's using timer interrupts to poll the LTC3589 state.
Lothar WaÃmann