[alsa-devel] [PATCH v2] mfd: arizona: Add DT binding for irq-gpios property

Charles Keepax ckeepax at opensource.wolfsonmicro.com
Tue Nov 3 17:52:47 CET 2015


On Tue, Nov 03, 2015 at 03:04:50PM +0000, Mark Brown wrote:
> On Tue, Nov 03, 2015 at 03:10:06PM +0100, Sebastien Jan wrote:
> 
> > +  - irq-gpios : GPIO specifier for the GPIO connected to /IRQ
> 
> The platform data this is providing is essentially a workaround for the
> lack of an irq_to_gpio() function and the use of it is a workaround for
> the lack of level triggered IRQ emulation in genirq...  do we really
> want this in the ABI (especially as a generic thing)?

Personally I would rather not add this to the DT unless we really
had to.

Also are you sure this is necessary on your system? Specifically
you only need this entry if the CODEC is connected to an IRQ line
that only supports edge triggered IRQs.

Thanks,
Charles


More information about the Alsa-devel mailing list