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Date:   Thu, 13 Apr 2017 19:20:13 -0300
From:   Fabio Estevam <festevam@...il.com>
To:     Andrey Smirnov <andrew.smirnov@...il.com>
Cc:     Shawn Guo <shawnguo@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        Russell King <linux@...linux.org.uk>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Sascha Hauer <kernel@...gutronix.de>,
        Fabio Estevam <fabio.estevam@....com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>, yurovsky@...il.com
Subject: Re: [PATCH 6/8] ARM: dts: imx7d-sdb: Add GPIO expander node

Hi Andrey,

On Thu, Apr 13, 2017 at 10:32 AM, Andrey Smirnov
<andrew.smirnov@...il.com> wrote:

> diff --git a/arch/arm/boot/dts/imx7d-sdb.dts b/arch/arm/boot/dts/imx7d-sdb.dts
> index 5be01a1..e0ff276 100644
> --- a/arch/arm/boot/dts/imx7d-sdb.dts
> +++ b/arch/arm/boot/dts/imx7d-sdb.dts
> @@ -52,6 +52,30 @@
>                 reg = <0x80000000 0x80000000>;
>         };
>
> +       spi4 {

Here you use spi4 label...

> +               compatible = "spi-gpio";
> +               pinctrl-names = "default";
> +               pinctrl-0 = <&pinctrl_spi1>;

and here spi1, which is a bit confusing.

> +               status = "okay";
> +               gpio-sck = <&gpio1 13 0>;
> +               gpio-mosi = <&gpio1 9 0>;
> +               cs-gpios = <&gpio1 12 0>;

You could use GPIO_ACTIVE_HIGH flag for better readability.

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