Re: [PATCH] dt-bindings: Drop redundant maxItems/items

From: Rob Herring
Date: Wed Dec 23 2020 - 12:56:08 EST


On Mon, Dec 21, 2020 at 11:39 PM Sam Ravnborg <sam@xxxxxxxxxxxx> wrote:
>
> Hi Rob,
>
> On Mon, Dec 21, 2020 at 09:06:45PM -0700, Rob Herring wrote:
> > 'maxItems' equal to the 'items' list length is redundant. 'maxItems' is
> > preferred for a single entry while greater than 1 should have an 'items'
> > list.
> >
> > A meta-schema check for this is pending once these existing cases are
> > fixed.
> >
> > Cc: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
> > Cc: Vinod Koul <vkoul@xxxxxxxxxx>
> > Cc: Mark Brown <broonie@xxxxxxxxxx>
> > Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> > Cc: Jassi Brar <jaswinder.singh@xxxxxxxxxx>
> > Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
> > Cc: dmaengine@xxxxxxxxxxxxxxx
> > Cc: alsa-devel@xxxxxxxxxxxxxxxx
> > Cc: linux-usb@xxxxxxxxxxxxxxx
> > Signed-off-by: Rob Herring <robh@xxxxxxxxxx>
>
> With one comment below,
> Acked-by: Sam Ravnborg <sam@xxxxxxxxxxxx>
>
> > ---
> > diff --git a/Documentation/devicetree/bindings/usb/renesas,usbhs.yaml b/Documentation/devicetree/bindings/usb/renesas,usbhs.yaml
> > index 737c1f47b7de..54c361d4a7af 100644
> > --- a/Documentation/devicetree/bindings/usb/renesas,usbhs.yaml
> > +++ b/Documentation/devicetree/bindings/usb/renesas,usbhs.yaml
> > @@ -74,11 +74,8 @@ properties:
> >
> > phys:
> > maxItems: 1
> > - items:
> > - - description: phandle + phy specifier pair.
>
> The description may help some people, so keeping the
> description and deleting maxItems would maybe be better.

Do we really want to describe 'phys' hundreds of times? No. The
question I ask on the descriptions is could it be generated instead.

Rob