linux-kernel - Re: [PATCH 6/8] ARM: dts: imx7d-sdb: Add GPIO expander node

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Date:   Fri, 14 Apr 2017 08:25:48 -0700
From:   Andrey Smirnov <andrew.smirnov@...il.com>
To:     Fabio Estevam <festevam@...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>,
        Andrey Yurovsky <yurovsky@...il.com>
Subject: Re: [PATCH 6/8] ARM: dts: imx7d-sdb: Add GPIO expander node

On Thu, Apr 13, 2017 at 3:20 PM, Fabio Estevam <festevam@...il.com> wrote:
> 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.
>

Agreed. It is confusing, will fix in v2.

>> +               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.

Missed that, will fix in v2.

Thanks,
Andrey Smirnov