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Date:   Wed, 6 May 2020 14:33:54 -0500
From:   Rob Herring <robh@...nel.org>
To:     dillon.minfei@...il.com
Cc:     thierry.reding@...il.com, sam@...nborg.org, airlied@...ux.ie,
        daniel@...ll.ch, robh+dt@...nel.org, devicetree@...r.kernel.org,
        dillon min <dillon.minfei@...il.com>,
        linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org
Subject: Re: [PATCH 2/4] dt-bindings: display: Add ilitek-9341 binding

On Wed,  6 May 2020 14:31:33 +0800, dillon.minfei@...il.com wrote:
> From: dillon min <dillon.minfei@...il.com>
> 
> add ili9341 for stm32f429-disco board
> some hardware resources can be found here
> https://www.st.com/zh/evaluation-tools/32f429idiscovery.html
> 
> Signed-off-by: dillon min <dillon.minfei@...il.com>
> ---
>  .../bindings/display/panel/ilitek,ili9341.yaml     | 55 ++++++++++++++++++++++
>  1 file changed, 55 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/display/panel/ilitek,ili9341.yaml
> 

My bot found errors running 'make dt_binding_check' on your patch:

Documentation/devicetree/bindings/display/panel/ilitek,ili9341.example.dts:21.13-23: Warning (reg_format): /example-0/display@0:reg: property has invalid length (4 bytes) (#address-cells == 1, #size-cells == 1)
Documentation/devicetree/bindings/display/panel/ilitek,ili9341.example.dt.yaml: Warning (pci_device_reg): Failed prerequisite 'reg_format'
Documentation/devicetree/bindings/display/panel/ilitek,ili9341.example.dt.yaml: Warning (pci_device_bus_num): Failed prerequisite 'reg_format'
Documentation/devicetree/bindings/display/panel/ilitek,ili9341.example.dt.yaml: Warning (simple_bus_reg): Failed prerequisite 'reg_format'
Documentation/devicetree/bindings/display/panel/ilitek,ili9341.example.dt.yaml: Warning (i2c_bus_reg): Failed prerequisite 'reg_format'
Documentation/devicetree/bindings/display/panel/ilitek,ili9341.example.dt.yaml: Warning (spi_bus_reg): Failed prerequisite 'reg_format'
/builds/robherring/linux-dt-review/Documentation/devicetree/bindings/display/panel/ilitek,ili9341.example.dt.yaml: display@0: 'spi-3wire', 'spi-max-frequency' do not match any of the regexes: 'pinctrl-[0-9]+'
/builds/robherring/linux-dt-review/Documentation/devicetree/bindings/display/panel/ilitek,ili9341.example.dt.yaml: display@0: compatible: Additional items are not allowed ('ilitek,ili9341' was unexpected)
/builds/robherring/linux-dt-review/Documentation/devicetree/bindings/display/panel/ilitek,ili9341.example.dt.yaml: display@0: compatible:0: 'ilitek,ili9341' was expected
/builds/robherring/linux-dt-review/Documentation/devicetree/bindings/display/panel/ilitek,ili9341.example.dt.yaml: display@0: compatible: ['stm32f429-disco,ltdc-panel', 'ilitek,ili9341'] is too long

See https://patchwork.ozlabs.org/patch/1284139

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure dt-schema is up to date:

pip3 install git+https://github.com/devicetree-org/dt-schema.git@master --upgrade

Please check and re-submit.

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