linux-kernel - Re: [PATCH v5 1/5] dt-bindings: arm: fsl: Add Gateworks Ventana i.MX6DL/Q compatibles

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Date:   Tue, 7 Jan 2020 10:16:52 -0600
From:   Rob Herring <robh@...nel.org>
To:     Bobby Jones <rjones@...eworks.com>
Cc:     Mark Rutland <mark.rutland@....com>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v5 1/5] dt-bindings: arm: fsl: Add Gateworks Ventana
 i.MX6DL/Q compatibles

On Mon, Jan 6, 2020 at 3:25 PM Bobby Jones <rjones@...eworks.com> wrote:
>
> On Fri, Jan 3, 2020 at 2:32 PM Rob Herring <robh@...nel.org> wrote:
> >
> > On Mon, Dec 30, 2019 at 03:19:49PM -0800, Robert Jones wrote:
> > > Add the compatible enum entries for Gateworks Ventana boards.
> > >
> > > Signed-off-by: Robert Jones <rjones@...eworks.com>
> > > ---
> > >  Documentation/devicetree/bindings/arm/fsl.yaml | 31 ++++++++++++++++++++++++++
> > >  1 file changed, 31 insertions(+)
> > >
> > > diff --git a/Documentation/devicetree/bindings/arm/fsl.yaml b/Documentation/devicetree/bindings/arm/fsl.yaml
> > > index f79683a..8ed4c85 100644
> > > --- a/Documentation/devicetree/bindings/arm/fsl.yaml
> > > +++ b/Documentation/devicetree/bindings/arm/fsl.yaml
> > > @@ -126,6 +126,22 @@ properties:
> > >                - toradex,apalis_imx6q-ixora      # Apalis iMX6 Module on Ixora
> > >                - toradex,apalis_imx6q-ixora-v1.1 # Apalis iMX6 Module on Ixora V1.1
> > >                - variscite,dt6customboard
> > > +              - gw,ventana                # Gateworks i.MX6DL or i.MX6Q Ventana
> > > +              - gw,imx6q-gw51xx
> >
> > This doesn't match what you have in dts files. Please check with:
> >
> > make dtbs_check DT_SCHEMA_FILES=Documentation/devicetree/bindings/arm/fsl.yaml
> >
> > You'll need a separate entry with 3 compatibles and 'gw,ventana' or drop
> > it.
>
> Hi Rob,
>
> Sorry, I'm still getting used to the whole schema format and a bit
> confused. Can you be more specific in how it doesn't match? I looked
> at the imx6q-gw51xx.dts file where I got the entry from and it has the
> following line:
>
> compatible = "gw,imx6q-gw51xx", "gw,ventana", "fsl,imx6q";

As written, the schema would not allow this, but would allow one of these:

"gw,imx6q-gw51xx", "fsl,imx6q"
"gw,ventana", "fsl,imx6q"

The 'items' schema allows for 2 entries. So if you want/need to
support 3 entries for compatible, you need a new 'items' schema with 3
entries:

items:
  - enum:
      - gw,imx6q-gw51xx
      - ... all the other boards listed below
  - const: gw,ventana
  - enum:
      - fsl,imx6dl
      - fsl,imx6q

> Obviously I'm only submitting the gw59xx board device trees but a
> previous version of this submission was asked to add all of the
> compatible strings for the Gateworks boards. Are you asking me to only
> post the gw59xx lines?

That's an orthogonal issue which I'll leave to the i.MX maintainers.

> >
> > > +              - gw,imx6q-gw52xx
> > > +              - gw,imx6q-gw53xx
> > > +              - gw,imx6q-gw5400-a
> > > +              - gw,imx6q-gw54xx
> > > +              - gw,imx6q-gw551x
> > > +              - gw,imx6q-gw552x
> > > +              - gw,imx6q-gw553x
> > > +              - gw,imx6q-gw560x
> > > +              - gw,imx6q-gw5903
> > > +              - gw,imx6q-gw5904
> > > +              - gw,imx6q-gw5907
> > > +              - gw,imx6q-gw5910
> > > +              - gw,imx6q-gw5912
> > > +              - gw,imx6q-gw5913
> > >            - const: fsl,imx6q
> > >
> > >        - description: i.MX6QP based Boards
> > > @@ -152,6 +168,21 @@ properties:
> > >                - ysoft,imx6dl-yapp4-draco  # i.MX6 DualLite Y Soft IOTA Draco board
> > >                - ysoft,imx6dl-yapp4-hydra  # i.MX6 DualLite Y Soft IOTA Hydra board
> > >                - ysoft,imx6dl-yapp4-ursa   # i.MX6 Solo Y Soft IOTA Ursa board
> > > +              - gw,ventana                # Gateworks i.MX6DL or i.MX6Q Ventana
> > > +              - gw,imx6dl-gw51xx
> > > +              - gw,imx6dl-gw52xx
> > > +              - gw,imx6dl-gw53xx
> > > +              - gw,imx6dl-gw54xx
> > > +              - gw,imx6dl-gw551x
> > > +              - gw,imx6dl-gw552x
> > > +              - gw,imx6dl-gw553x
> > > +              - gw,imx6dl-gw560x
> > > +              - gw,imx6dl-gw5903
> > > +              - gw,imx6dl-gw5904
> > > +              - gw,imx6dl-gw5907
> > > +              - gw,imx6dl-gw5910
> > > +              - gw,imx6dl-gw5912
> > > +              - gw,imx6dl-gw5913
> > >            - const: fsl,imx6dl
> > >
> > >        - description: i.MX6SL based Boards
> > > --
> > > 2.9.2
> > >