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Date:   Wed, 23 Dec 2020 19:57:15 +0200
From:   Laurent Pinchart <laurent.pinchart@...asonboard.com>
To:     Rob Herring <robh@...nel.org>
Cc:     Sam Ravnborg <sam@...nborg.org>, devicetree@...r.kernel.org,
        Linux-ALSA <alsa-devel@...a-project.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Linux USB List <linux-usb@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        Jassi Brar <jaswinder.singh@...aro.org>,
        Vinod Koul <vkoul@...nel.org>, Mark Brown <broonie@...nel.org>,
        "open list:DMA GENERIC OFFLOAD ENGINE SUBSYSTEM" 
        <dmaengine@...r.kernel.org>
Subject: Re: [PATCH] dt-bindings: Drop redundant maxItems/items

On Wed, Dec 23, 2020 at 10:54:26AM -0700, Rob Herring wrote:
> On Mon, Dec 21, 2020 at 11:39 PM Sam Ravnborg <sam@...nborg.org> 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@...asonboard.com>
> > > Cc: Vinod Koul <vkoul@...nel.org>
> > > Cc: Mark Brown <broonie@...nel.org>
> > > Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> > > Cc: Jassi Brar <jaswinder.singh@...aro.org>
> > > Cc: dri-devel@...ts.freedesktop.org
> > > Cc: dmaengine@...r.kernel.org
> > > Cc: alsa-devel@...a-project.org
> > > Cc: linux-usb@...r.kernel.org
> > > Signed-off-by: Rob Herring <robh@...nel.org>
> >
> > With one comment below,
> > Acked-by: Sam Ravnborg <sam@...nborg.org>
> >
> > > ---
> > > 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.

I agree. If the description had mentioned why particular PHY was
referenced, I would have kept that, but "the phy is a phy" is probably
not something we want to duplicate everywhere.

-- 
Regards,

Laurent Pinchart

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