[PATCH 1/9] sh-pfc: Add OF support
Laurent Pinchart
laurent.pinchart at ideasonboard.com
Tue Jan 8 05:56:19 EST 2013
Hi Tony,
On Friday 04 January 2013 14:12:06 Tony Prisk wrote:
> On Fri, 2013-01-04 at 01:40 +0100, Laurent Pinchart wrote:
> > +- #gpio-cells: Should be 2. The first cell is the pin number and the
> > second cell
> > + is used to specify optional parameters (currently unused).
>
> ...
>
> > + gpio: pfc at e6050000 {
> > + compatible = "renesas,pfc-sh73a0";
> > + reg = <0xe6050000 0x8000>,
> > + <0xe605801c 0x1c>;
> > + gpio-controller;
> > + #gpio-cells = <2>;
> > + };
> > +
> > +Example 2: A GPIO LED node that references a GPIO
> > +
> > + leds {
> > + compatible = "gpio-leds";
> > + led1 {
> > + gpios = <&gpio 20 1>; /* Active low */
> > + };
> > + };
> > +
>
> The second cell of gpio is '(currently unused)' but the example shows it
> being used?
My bad. The second cell can be used to specify that the GPIO is active low.
I'll fix the documentation accordingly.
--
Regards,
Laurent Pinchart
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