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Date: Tue, 5 Jan 2021 10:40:08 -0700
From: Rob Herring <robh@...nel.org>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
Jens Axboe <axboe@...nel.dk>, Stephen Boyd <sboyd@...nel.org>,
Thierry Reding <thierry.reding@...il.com>,
MyungJoo Ham <myungjoo.ham@...sung.com>,
Chanwoo Choi <cw00.choi@...sung.com>,
Linus Walleij <linus.walleij@...aro.org>,
Bartosz Golaszewski <bgolaszewski@...libre.com>,
Jonathan Cameron <jic23@...nel.org>,
Dmitry Torokhov <dmitry.torokhov@...il.com>,
Thomas Gleixner <tglx@...utronix.de>,
Marc Zyngier <maz@...nel.org>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
Chen-Yu Tsai <wens@...e.org>,
Ulf Hansson <ulf.hansson@...aro.org>,
"David S. Miller" <davem@...emloft.net>,
Jakub Kicinski <kuba@...nel.org>,
Sebastian Reichel <sre@...nel.org>,
Ohad Ben-Cohen <ohad@...ery.com>,
Bjorn Andersson <bjorn.andersson@...aro.org>,
linux-arm-kernel@...ts.infradead.org, linux-ide@...r.kernel.org,
linux-clk@...r.kernel.org, dri-devel@...ts.freedesktop.org,
linux-gpio@...r.kernel.org, linux-iio@...r.kernel.org,
linux-input@...r.kernel.org, linux-media@...r.kernel.org,
linux-mmc@...r.kernel.org, netdev@...r.kernel.org,
linux-pm@...r.kernel.org, linux-remoteproc@...r.kernel.org,
linux-riscv@...ts.infradead.org, linux-serial@...r.kernel.org,
alsa-devel@...a-project.org, linux-spi@...r.kernel.org,
linux-usb@...r.kernel.org
Subject: Re: [PATCH] dt-bindings: Add missing array size constraints
On Tue, Jan 05, 2021 at 02:04:14PM +0100, Greg Kroah-Hartman wrote:
> On Mon, Jan 04, 2021 at 04:02:53PM -0700, Rob Herring wrote:
> > DT properties which can have multiple entries need to specify what the
> > entries are and define how many entries there can be. In the case of
> > only a single entry, just 'maxItems: 1' is sufficient.
> >
> > Add the missing entry constraints. These were found with a modified
> > meta-schema. Unfortunately, there are a few cases where the size
> > constraints are not defined such as common bindings, so the meta-schema
> > can't be part of the normal checks.
> >
> > Cc: Jens Axboe <axboe@...nel.dk>
> > Cc: Stephen Boyd <sboyd@...nel.org>
> > Cc: Thierry Reding <thierry.reding@...il.com>
> > Cc: MyungJoo Ham <myungjoo.ham@...sung.com>
> > Cc: Chanwoo Choi <cw00.choi@...sung.com>
> > Cc: Linus Walleij <linus.walleij@...aro.org>
> > Cc: Bartosz Golaszewski <bgolaszewski@...libre.com>
> > Cc: Jonathan Cameron <jic23@...nel.org>
> > Cc: Dmitry Torokhov <dmitry.torokhov@...il.com>
> > Cc: Thomas Gleixner <tglx@...utronix.de>
> > Cc: Marc Zyngier <maz@...nel.org>
> > Cc: Mauro Carvalho Chehab <mchehab@...nel.org>
> > Cc: Chen-Yu Tsai <wens@...e.org>
> > Cc: Ulf Hansson <ulf.hansson@...aro.org>
> > Cc: "David S. Miller" <davem@...emloft.net>
> > Cc: Jakub Kicinski <kuba@...nel.org>
> > Cc: Sebastian Reichel <sre@...nel.org>
> > Cc: Ohad Ben-Cohen <ohad@...ery.com>
> > Cc: Bjorn Andersson <bjorn.andersson@...aro.org>
> > Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> > Signed-off-by: Rob Herring <robh@...nel.org>
>
> <snip>
>
> > diff --git a/Documentation/devicetree/bindings/usb/generic-ehci.yaml b/Documentation/devicetree/bindings/usb/generic-ehci.yaml
> > index 247ef00381ea..f76b25f7fc7a 100644
> > --- a/Documentation/devicetree/bindings/usb/generic-ehci.yaml
> > +++ b/Documentation/devicetree/bindings/usb/generic-ehci.yaml
> > @@ -83,6 +83,7 @@ properties:
> > Phandle of a companion.
> >
> > phys:
> > + maxItems: 1
> > description: PHY specifier for the USB PHY
> >
> > phy-names:
> > diff --git a/Documentation/devicetree/bindings/usb/generic-ohci.yaml b/Documentation/devicetree/bindings/usb/generic-ohci.yaml
> > index 2178bcc401bc..8e2bd61f2075 100644
> > --- a/Documentation/devicetree/bindings/usb/generic-ohci.yaml
> > +++ b/Documentation/devicetree/bindings/usb/generic-ohci.yaml
> > @@ -71,6 +71,7 @@ properties:
> > Overrides the detected port count
> >
> > phys:
> > + maxItems: 1
> > description: PHY specifier for the USB PHY
> >
> > phy-names:
> > diff --git a/Documentation/devicetree/bindings/usb/ingenic,musb.yaml b/Documentation/devicetree/bindings/usb/ingenic,musb.yaml
> > index 678396eeeb78..f506225a4d57 100644
> > --- a/Documentation/devicetree/bindings/usb/ingenic,musb.yaml
> > +++ b/Documentation/devicetree/bindings/usb/ingenic,musb.yaml
> > @@ -40,7 +40,7 @@ properties:
> > - const: mc
> >
> > phys:
> > - description: PHY specifier for the USB PHY
> > + maxItems: 1
> >
> > usb-role-switch:
> > type: boolean
>
> Any reason you dropped the description for this entry, but not the other
> ones above?
No, I should have dropped those too. I dropped cases of genericish
descriptions on common properties. There's nothing specific to this
binding here really.
>
> > diff --git a/Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml b/Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml
> > index 388245b91a55..adce36e48bc9 100644
> > --- a/Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml
> > +++ b/Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml
> > @@ -15,13 +15,14 @@ properties:
> > - const: ti,j721e-usb
> >
> > reg:
> > - description: module registers
> > + maxItems: 1
> >
> > power-domains:
> > description:
> > PM domain provider node and an args specifier containing
> > the USB device id value. See,
> > Documentation/devicetree/bindings/soc/ti/sci-pm-domain.txt
> > + maxItems: 1
> >
> > clocks:
> > description: Clock phandles to usb2_refclk and lpm_clk
>
> Same here, why remove the description?
Really, the question is why keep 'description' on power-domains. Perhaps
there's a little value in the reference to sci-pm-domain.txt, so I left
it.
Rob
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