linux-kernel - Re: [PATCH 2/4] dt-bindings: display: Add ABT Y030XX067A panel bindings

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Date:   Mon, 30 Nov 2020 13:18:15 -0700
From:   Rob Herring <robh+dt@...nel.org>
To:     Paul Cercueil <paul@...pouillou.net>
Cc:     Sam Ravnborg <sam@...nborg.org>,
        Thierry Reding <thierry.reding@...il.com>,
        Christophe Branchereau <cbranchereau@...il.com>, od@...c.me,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        devicetree@...r.kernel.org,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/4] dt-bindings: display: Add ABT Y030XX067A panel bindings

On Mon, Nov 30, 2020 at 12:39 PM Paul Cercueil <paul@...pouillou.net> wrote:
>
> Hi Rob,
>
> Le lun. 30 nov. 2020 à 7:32, Rob Herring <robh+dt@...nel.org> a écrit
> :
> > On Mon, Nov 2, 2020 at 3:19 AM Paul Cercueil <paul@...pouillou.net>
> > wrote:
> >>
> >>
> >>
> >>  Le dim. 1 nov. 2020 à 13:29, Sam Ravnborg <sam@...nborg.org> a
> >> écrit :
> >>  > On Sun, Nov 01, 2020 at 09:31:48AM +0000, Paul Cercueil wrote:
> >>  >>  The Asia Better Technology (ABT) Y030XX067A panel is a 3.0"
> >> 320x480
> >>  >>  24-bit IPS LCD panel. Its particularity is that it has
> >> non-square
> >>  >> pixels
> >>  >>  (as it is 4:3 for a resolution of 320x480), and that it
> >> requires odd
> >>  >>  lines to be sent as RGB and even lines to be sent as GRB on its
> >>  >> 8-bit
> >>  >>  bus.
> >>  >>
> >>  >>  Signed-off-by: Paul Cercueil <paul@...pouillou.net>
> >>  >>  ---
> >>  >>   .../display/panel/abt,y030xx067a.yaml         | 54
> >>  >> +++++++++++++++++++
> >>  >>   1 file changed, 54 insertions(+)
> >>  >>   create mode 100644
> >>  >>
> >> Documentation/devicetree/bindings/display/panel/abt,y030xx067a.yaml
> >>  >>
> >>  >>  diff --git
> >>  >>
> >> a/Documentation/devicetree/bindings/display/panel/abt,y030xx067a.yaml
> >>  >>
> >> b/Documentation/devicetree/bindings/display/panel/abt,y030xx067a.yaml
> >>  >>  new file mode 100644
> >>  >>  index 000000000000..6407e8bf45fa
> >>  >>  --- /dev/null
> >>  >>  +++
> >>  >>
> >> b/Documentation/devicetree/bindings/display/panel/abt,y030xx067a.yaml
> >>  >>  @@ -0,0 +1,54 @@
> >>  >>  +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> >>  >>  +%YAML 1.2
> >>  >>  +---
> >>  >>  +$id:
> >>  >> http://devicetree.org/schemas/display/panel/abt,y030xx067a.yaml#
> >>  >>  +$schema: http://devicetree.org/meta-schemas/core.yaml#
> >>  >>  +
> >>  >>  +title: Asia Better Technology 3.0" (320x480 pixels) 24-bit IPS
> >> LCD
> >>  >> panel
> >>  >>  +
> >>  >>  +description: |
> >>  >>  +  The panel must obey the rules for a SPI slave device as
> >>  >> specified in
> >>  >>  +  spi/spi-controller.yaml
> >>  >>  +
> >>  >>  +maintainers:
> >>  >>  +  - Paul Cercueil <paul@...pouillou.net>
> >>  >>  +
> >>  >>  +allOf:
> >>  >>  +  - $ref: panel-common.yaml#
> >>  >>  +
> >>  >>  +properties:
> >>  >>  +  compatible:
> >>  >>  +    const: abt,y030xx067a
> >>  >>  +
> >>  >>  +  backlight: true
> >>  >>  +  port: true
> >>  >>  +  power-supply: true
> >>  >>  +  reg: true
> >>  >>  +  reset-gpios: true
> >>  >
> >>  > The binding is missing:
> >>  > required:
> >>  >   - compatible
> >>  >   - reg
> >>  >   - power-supply
> >>  >   - reset-gpios
> >>  >   - ...
> >>  >
> >>  > additionalProperties: false
> >>  >
> >>  > So r-b only with these added.
> >>
> >>  Stupid mistake, sorry about that.
> >>
> >>  I'll V2.
> >
> > I don't have any V2 in my inbox, but looks like it is in linux-next
> > now:
>
> Yes, Sam told me on IRC I could fix it while applying and avoid the V2.
>
> > /builds/robherring/linux-dt-bindings/Documentation/devicetree/bindings/display/panel/abt,y030xx067a.example.dt.yaml:
> > panel@0: 'spi-max-frequency' does not match any of the regexes:
> > 'pinctrl-[0-9]+'
> >  From schema:
> > /builds/robherring/linux-dt-bindings/Documentation/devicetree/bindings/display/panel/abt,y030xx067a.yaml
>
> "make dt_binding_check
> DT_SCHEMA_FILES=Documentation/devicetree/bindings/display/panel/abt,y030xx067a.yaml"
> doesn't complain here :(

Even if you do 'touch
Documentation/devicetree/bindings/display/panel/abt,y030xx067a.yaml'
or do a clean build?

I can't think of any kernel or dt-schema changes which would explain
the difference. This is purely related to 'additionalProperties:
false'.

Rob