Re: [PATCH] Documentation: gpio: fix bindings document

From: Laurent Pinchart
Date: Thu Jan 15 2015 - 09:10:37 EST


Hi Rob,

On Thursday 15 January 2015 08:07:18 Rob Herring wrote:
> On Thu, Jan 15, 2015 at 2:52 AM, Masahiro Yamada
>
> <yamada.m@xxxxxxxxxxxxxxxx> wrote:
> > Signed-off-by: Masahiro Yamada <yamada.m@xxxxxxxxxxxxxxxx>
>
> Perhaps some explanation. You can't just remove properties. Please
> explain to what extent the old/wrong name is used. This patch is only
> okay if there are no users of gpio-phandle.

As far as I understand the patch just fixes a typo. There has never been a
gpio-phandle for GPIO controllers, only for GPIO consumers.

> > ---
> >
> > Documentation/devicetree/bindings/gpio/gpio.txt | 5 +++--
> > 1 file changed, 3 insertions(+), 2 deletions(-)
> >
> > diff --git a/Documentation/devicetree/bindings/gpio/gpio.txt
> > b/Documentation/devicetree/bindings/gpio/gpio.txt index b9bd1d6..f7a158d
> > 100644
> > --- a/Documentation/devicetree/bindings/gpio/gpio.txt
> > +++ b/Documentation/devicetree/bindings/gpio/gpio.txt
> > @@ -69,7 +69,8 @@ GPIO pin number, and GPIO flags as accepted by the
> > "qe_pio_e" gpio-controller.>
> > ----------------------------------
> >
> > A gpio-specifier should contain a flag indicating the GPIO polarity;
> > active->
> > -high or active-low. If it does, the follow best practices should be
> > followed: +high or active-low. If it does, the following best practices
> > should be>
> > +followed:
> > The gpio-specifier's polarity flag should represent the physical level at
> > the GPIO controller that achieves (or represents, for inputs) a
> > logically asserted>
> > @@ -147,7 +148,7 @@ contains information structures as follows:
> > numeric-gpio-range ::=
> >
> > <pinctrl-phandle> <gpio-base> <pinctrl-base>
> > <count>
> >
> > named-gpio-range ::= <pinctrl-phandle> <gpio-base> '<0 0>'
> >
> > - gpio-phandle : phandle to pin controller node.
> > + pinctrl-phandle : phandle to pin controller node
> >
> > gpio-base : Base GPIO ID in the GPIO controller
> > pinctrl-base : Base pinctrl pin ID in the pin controller
> > count : The number of GPIOs/pins in this range

--
Regards,

Laurent Pinchart

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