linux-kernel - Re: [PATCH v3 01/13] dt-bindings: display: Convert common panel bindings to DT schema

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Message-ID: <CAMuHMdU-ubE9y3V9W_ij5OFyxNLu0LmdrH88=vkkr6uSAJrTPA@mail.gmail.com>
Date:   Fri, 25 Oct 2019 16:38:51 +0200
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Rob Herring <robh@...nel.org>
Cc:     DRI Development <dri-devel@...ts.freedesktop.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Thierry Reding <thierry.reding@...il.com>,
        Sam Ravnborg <sam@...nborg.org>,
        Maxime Ripard <maxime.ripard@...tlin.com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Thierry Reding <treding@...dia.com>
Subject: Re: [PATCH v3 01/13] dt-bindings: display: Convert common panel
 bindings to DT schema

Hi Rob,

On Fri, Oct 25, 2019 at 4:25 PM Rob Herring <robh@...nel.org> wrote:
> On Fri, Oct 25, 2019 at 8:07 AM Geert Uytterhoeven <geert@...ux-m68k.org> wrote:
> > On Fri, Jul 5, 2019 at 6:46 PM Rob Herring <robh@...nel.org> wrote:
> > > Convert the common panel bindings to DT schema consolidating scattered
> > > definitions to a single schema file.
> > >
> > > The 'simple-panel' binding just a collection of properties and not a
> > > complete binding itself. All of the 'simple-panel' properties are
> > > covered by the panel-common.txt binding with the exception of the
> > > 'no-hpd' property, so add that to the schema.
> > >
> > > As there are lots of references to simple-panel.txt, just keep the file
> > > with a reference to common.yaml for now until all the bindings are
> > > converted.
> > >
> > > Cc: Thierry Reding <thierry.reding@...il.com>
> > > Cc: Laurent Pinchart <laurent.pinchart@...asonboard.com>
> > > Cc: dri-devel@...ts.freedesktop.org
> > > Acked-by: Sam Ravnborg <sam@...nborg.org>
> > > Reviewed-by: Maxime Ripard <maxime.ripard@...tlin.com>
> > > Reviewed-by: Thierry Reding <treding@...dia.com>
> > > Signed-off-by: Rob Herring <robh@...nel.org>
> >
> > This is now commit 821a1f7171aeea5e ("dt-bindings: display: Convert
> > common panel bindings to DT schema").
> >
> > > --- /dev/null
> > > +++ b/Documentation/devicetree/bindings/display/panel/panel-common.yaml
> >
> > > +  backlight:
> > > +    $ref: /schemas/types.yaml#/definitions/phandle
> > > +    description:
> > > +      For panels whose backlight is controlled by an external backlight
> > > +      controller, this property contains a phandle that references the
> > > +      controller.
> >
> > This paragraph seems to apply to all nodes named "backlight", causing
> > e.g. (for ARCH=arm mach_shmobile_defconfig) "make dtbs_check
> > DT_SCHEMA_FILES=Documentation/devicetree/bindings/display/panel/panel-common.yaml"
> > to start complaining:
> >
> >     arch/arm/boot/dts/r8a7740-armadillo800eva.dt.yaml: backlight:
> > {'compatible': ['pwm-backlight'], 'pwms': [[40, 2, 33333, 1]],
> > 'brightness-levels': [[0, 1, 2, 4, 8, 16, 32, 64, 128, 255]],
> > 'default-brightness-level': [[9]], 'pinctrl-0': [[41]],
> > 'pinctrl-names': ['default'], 'power-supply': [[42]], 'enable-gpios':
> > [[15, 61, 0]]} is not of type 'array'
> >     arch/arm/boot/dts/r8a7740-armadillo800eva.dt.yaml: backlight:
> > {'groups': ['tpu0_to2_1'], 'function': ['tpu0'], 'phandle': [[41]]} is
> > not of type 'array'
> >
> > Do you know what's wrong?
>
> I'm not seeing that. What does .../bindings/processed-schema.yaml look like?

I see it with both next-20191015 and v5.4-rc4.

- $filename: /scratch/geert/linux/linux-next/Documentation/devicetree/bindings/display/panel/panel-common.yaml
  $id: http://devicetree.org/schemas/display/panel/panel-common.yaml#
  $schema: http://devicetree.org/meta-schemas/core.yaml#
  dependencies:
    height-mm: [width-mm]
    width-mm: [height-mm]
  patternProperties: {'pinctrl-[0-9]+': true}
  properties:
    $nodename: true
    backlight: {$ref: /schemas/types.yaml#/definitions/phandle}
    ddc-i2c-bus: {$ref: /schemas/types.yaml#/definitions/phandle}
    enable-gpios: {maxItems: 1, minItems: 1}
    height-mm: {}
    label: {}
    no-hpd: {type: boolean}
    panel-timing: {type: object}
    phandle: true
    pinctrl-names: true
    port: {type: object}
    ports: {type: object}
    power-supply: {}
    reset-gpios: {maxItems: 1, minItems: 1}
    rotation:
      allOf:
      - {$ref: /schemas/types.yaml#/definitions/uint32}
      - additionalItems: false
        items:
          additionalItems: false
          items:
            enum: [0, 90, 180, 270]
          maxItems: 1
          minItems: 1
          type: array
        maxItems: 1
        minItems: 1
        type: array
    status: true
    width-mm: {}
  select:
    properties: {$nodename: true}
    required: [$nodename]
  title: Common Properties for Display Panels

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds