linux-kernel - Re: [PATCH v2 1/1] dt-bindings: i2c: dw: cancel mandatory requirements for "#address-cells" and "#size-cells"

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Date:   Mon, 14 Dec 2020 09:16:30 -0600
From:   Rob Herring <robh@...nel.org>
To:     Zhen Lei <thunder.leizhen@...wei.com>
Cc:     Rob Herring <robh+dt@...nel.org>,
        devicetree <devicetree@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Serge Semin <Sergey.Semin@...kalelectronics.ru>,
        Wolfram Sang <wsa@...nel.org>,
        linux-i2c <linux-i2c@...r.kernel.org>
Subject: Re: [PATCH v2 1/1] dt-bindings: i2c: dw: cancel mandatory
 requirements for "#address-cells" and "#size-cells"

On Mon, 14 Dec 2020 20:43:47 +0800, Zhen Lei wrote:
> The "#address-cells" and "#size-cells" are required only when the I2C
> controller has subnodes. However, some I2C controllers defined in
> "arch/arm64/boot/dts/amd/" and "arch/arm64/boot/dts/hisilicon/"
> directories do not have child nodes. So they don't need these two
> properties and don't write them explicitly.
> 
> Therefore, setting properties "#address-cells" and "#size-cells" as
> "required" in this yaml file causes the following warnings:
> /root/linux-next/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dt.yaml: \
> i2c@...00000: '#address-cells' is a required property
> /root/linux-next/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dt.yaml: \
> i2c@...00000: '#size-cells' is a required property
> 
> Signed-off-by: Zhen Lei <thunder.leizhen@...wei.com>
> ---
>  Documentation/devicetree/bindings/i2c/snps,designware-i2c.yaml | 8 --------
>  1 file changed, 8 deletions(-)
> 

Applied, thanks!