linux-kernel - Re: [PATCH v2 2/2] dt-bindings: gpio: Add bindings for NXP PCA9570

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Date:   Wed, 1 Jul 2020 01:06:54 +0900
From:   Sungbo Eo <mans0n@...ani.run>
To:     Rob Herring <robh@...nel.org>
Cc:     linux-gpio@...r.kernel.org, Rob Herring <robh+dt@...nel.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        Linus Walleij <linus.walleij@...aro.org>
Subject: Re: [PATCH v2 2/2] dt-bindings: gpio: Add bindings for NXP PCA9570

On 2020-06-30 07:01, Rob Herring wrote:
> On Thu, 25 Jun 2020 16:59:57 +0900, Sungbo Eo wrote:
>> This patch adds device tree bindings for the NXP PCA9570,
>> a 4-bit I2C GPO expander.
>>
>> Signed-off-by: Sungbo Eo <mans0n@...ani.run>
>> ---
>> I don't feel I can really maintain this driver, but it seems all yaml docs
>> have a maintainers field so I just added it...
>> ---
>>   .../bindings/gpio/gpio-pca9570.yaml           | 42 +++++++++++++++++++
>>   1 file changed, 42 insertions(+)
>>   create mode 100644 Documentation/devicetree/bindings/gpio/gpio-pca9570.yaml
>>
> 
> 
> My bot found errors running 'make dt_binding_check' on your patch:
> 
> Documentation/devicetree/bindings/gpio/gpio-pca9570.example.dts:21.13-26: Warning (reg_format): /example-0/gpio@24:reg: property has invalid length (4 bytes) (#address-cells == 1, #size-cells == 1)
> Documentation/devicetree/bindings/gpio/gpio-pca9570.example.dt.yaml: Warning (pci_device_reg): Failed prerequisite 'reg_format'
> Documentation/devicetree/bindings/gpio/gpio-pca9570.example.dt.yaml: Warning (pci_device_bus_num): Failed prerequisite 'reg_format'
> Documentation/devicetree/bindings/gpio/gpio-pca9570.example.dt.yaml: Warning (simple_bus_reg): Failed prerequisite 'reg_format'
> Documentation/devicetree/bindings/gpio/gpio-pca9570.example.dt.yaml: Warning (i2c_bus_reg): Failed prerequisite 'reg_format'
> Documentation/devicetree/bindings/gpio/gpio-pca9570.example.dt.yaml: Warning (spi_bus_reg): Failed prerequisite 'reg_format'
> /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/gpio/gpio-pca9570.example.dt.yaml: example-0: gpio@24:reg:0: [36] is too short
> 
> 
> See https://patchwork.ozlabs.org/patch/1316796
> 
> 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.
> 

Thank you for pointing it out! I didn't noticed it. I'll re-submit an 
updated patch soon.