linux-kernel - Re: [PATCH 29/89] dt-bindings: display: Convert VC4 bindings to schemas

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Message-ID: <20200225115447.yntzkh3vfnw67ial@gilmour.lan>
Date:   Tue, 25 Feb 2020 12:54:47 +0100
From:   Maxime Ripard <maxime@...no.tech>
To:     Rob Herring <robh@...nel.org>
Cc:     Nicolas Saenz Julienne <nsaenzjulienne@...e.de>,
        Eric Anholt <eric@...olt.net>, dri-devel@...ts.freedesktop.org,
        linux-rpi-kernel@...ts.infradead.org,
        bcm-kernel-feedback-list@...adcom.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Dave Stevenson <dave.stevenson@...pberrypi.com>,
        Tim Gover <tim.gover@...pberrypi.com>,
        Phil Elwell <phil@...pberrypi.com>, devicetree@...r.kernel.org
Subject: Re: [PATCH 29/89] dt-bindings: display: Convert VC4 bindings to
 schemas

Hi Rob,

On Mon, Feb 24, 2020 at 12:41:07PM -0600, Rob Herring wrote:
> On Mon, 24 Feb 2020 10:06:31 +0100, Maxime Ripard wrote:
> > The BCM283x SoCs have a display pipeline composed of several controllers
> > with device tree bindings that are supported by Linux.
> >
> > Now that we have the DT validation in place, let's split into separate
> > files and convert the device tree bindings for those controllers to
> > schemas.
> >
> > Cc: Rob Herring <robh+dt@...nel.org>
> > Cc: devicetree@...r.kernel.org
> > Signed-off-by: Maxime Ripard <maxime@...no.tech>
> > ---
> >  Documentation/devicetree/bindings/display/brcm,bcm-vc4.txt              | 174 +------------------------------------------------------------------------
> >  Documentation/devicetree/bindings/display/brcm,bcm2835-dpi.yaml         |  66 +++++++++++++++++++++++++++-
> >  Documentation/devicetree/bindings/display/brcm,bcm2835-dsi0.yaml        |  73 ++++++++++++++++++++++++++++++-
> >  Documentation/devicetree/bindings/display/brcm,bcm2835-hdmi.yaml        |  75 +++++++++++++++++++++++++++++++-
> >  Documentation/devicetree/bindings/display/brcm,bcm2835-hvs.yaml         |  37 +++++++++++++++-
> >  Documentation/devicetree/bindings/display/brcm,bcm2835-pixelvalve0.yaml |  40 +++++++++++++++++-
> >  Documentation/devicetree/bindings/display/brcm,bcm2835-txp.yaml         |  37 +++++++++++++++-
> >  Documentation/devicetree/bindings/display/brcm,bcm2835-v3d.yaml         |  42 +++++++++++++++++-
> >  Documentation/devicetree/bindings/display/brcm,bcm2835-vc4.yaml         |  34 ++++++++++++++-
> >  Documentation/devicetree/bindings/display/brcm,bcm2835-vec.yaml         |  44 ++++++++++++++++++-
> >  MAINTAINERS                                                             |   2 +-
> >  11 files changed, 449 insertions(+), 175 deletions(-)
> >  delete mode 100644 Documentation/devicetree/bindings/display/brcm,bcm-vc4.txt
> >  create mode 100644 Documentation/devicetree/bindings/display/brcm,bcm2835-dpi.yaml
> >  create mode 100644 Documentation/devicetree/bindings/display/brcm,bcm2835-dsi0.yaml
> >  create mode 100644 Documentation/devicetree/bindings/display/brcm,bcm2835-hdmi.yaml
> >  create mode 100644 Documentation/devicetree/bindings/display/brcm,bcm2835-hvs.yaml
> >  create mode 100644 Documentation/devicetree/bindings/display/brcm,bcm2835-pixelvalve0.yaml
> >  create mode 100644 Documentation/devicetree/bindings/display/brcm,bcm2835-txp.yaml
> >  create mode 100644 Documentation/devicetree/bindings/display/brcm,bcm2835-v3d.yaml
> >  create mode 100644 Documentation/devicetree/bindings/display/brcm,bcm2835-vc4.yaml
> >  create mode 100644 Documentation/devicetree/bindings/display/brcm,bcm2835-vec.yaml
> >
>
> My bot found errors running 'make dt_binding_check' on your patch:
>
> warning: no schema found in file: Documentation/devicetree/bindings/display/brcm,bcm2835-dsi0.yaml
> /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/display/brcm,bcm2835-dsi0.yaml: ignoring, error in schema: properties
> Documentation/devicetree/bindings/display/simple-framebuffer.example.dts:21.16-37.11: Warning (chosen_node_is_root): /example-0/chosen: chosen node must be at root node
> /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/display/brcm,bcm2835-dsi0.yaml: properties: '#clock-cells' is a dependency of 'clock-output-names'
> Documentation/devicetree/bindings/Makefile:12: recipe for target 'Documentation/devicetree/bindings/display/brcm,bcm2835-dsi0.example.dts' failed
> make[1]: *** [Documentation/devicetree/bindings/display/brcm,bcm2835-dsi0.example.dts] Error 1
> Makefile:1263: recipe for target 'dt_binding_check' failed
> make: *** [dt_binding_check] Error 2
>
> See https://patchwork.ozlabs.org/patch/1242907
> Please check and re-submit.

Yeah, that was fixed in patch 31 ("dt-bindings: display: vc4: dsi: Add
missing clock properties"). I'm not quite sure what the preferred
approach here would be: I did a conversion as is of the binding, and
then fixed it, or do you prefer having it all in the same patch?

Maxime

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