Re: [PATCH v6 2/4] pps: descriptor-based gpio, capture-clear addition

[tom burkart]

Quoting Philipp Zabel <philipp.zabel@xxxxxxxxx>:

> On Tue, Nov 13, 2018 at 5:08 AM Tom Burkart <tom@xxxxxxxxxx> wrote:
> > This patch changes the GPIO access for the pps-gpio driver from the
> > integer based API to the descriptor based API.  It also adds
> > documentation for the device tree capture-clear option and
> > device tree capture-clear extraction.
> >
> > The change from integer based GPIO API to the descriptor based API
> > breaks backward compatibility for the devicetree.  This is due to
> > the descriptor based API appending "-gpio" or "-gpios" (see
> > Documentation/gpio/base.txt.)
>
> Documentation/devicetree/bindings/gpio/gpio.txt says:
>  "While a non-existent <name> is considered valid
>   for compatibility reasons (resolving to the "gpios" property),
>   it is not allowed for new bindings."
>
> This is not a new binding, so there should be no reason to change it.
>
> gpiod_get() and friends support this by using the "gpios" property if
> they are passed a NULL con_id.
> of_find_gpio() in drivers/gpio/gpiolib-of.c contains the relevant code.

Hi Phillip,

Oops, sounds like I didn't read the documentation properly.  Thanks  
for the clarification.
A new patch will be on its way shortly...

Tom