linux-kernel - RE: [EXT] Re: [PATCH v3 1/3] dt-bindings: gpio: Add imx scu gpio driver bindings

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Message-ID: <AM9PR04MB827495CB596427BD86A1522B89659@AM9PR04MB8274.eurprd04.prod.outlook.com>
Date:   Wed, 10 Aug 2022 15:23:47 +0000
From:   Shenwei Wang <shenwei.wang@....com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "krzysztof.kozlowski+dt@...aro.org" 
        <krzysztof.kozlowski+dt@...aro.org>,
        "linus.walleij@...aro.org" <linus.walleij@...aro.org>,
        "brgl@...ev.pl" <brgl@...ev.pl>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        "s.hauer@...gutronix.de" <s.hauer@...gutronix.de>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>,
        "festevam@...il.com" <festevam@...il.com>,
        dl-linux-imx <linux-imx@....com>
CC:     "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "imx@...ts.linux.dev" <imx@...ts.linux.dev>
Subject: RE: [EXT] Re: [PATCH v3 1/3] dt-bindings: gpio: Add imx scu gpio
 driver bindings



> -----Original Message-----
> From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> Sent: Wednesday, August 10, 2022 9:46 AM
> To: Shenwei Wang <shenwei.wang@....com>; robh+dt@...nel.org;
> krzysztof.kozlowski+dt@...aro.org; linus.walleij@...aro.org; brgl@...ev.pl;
> shawnguo@...nel.org; s.hauer@...gutronix.de; kernel@...gutronix.de;
> festevam@...il.com; dl-linux-imx <linux-imx@....com>
> Cc: devicetree@...r.kernel.org; linux-kernel@...r.kernel.org; linux-
> gpio@...r.kernel.org; linux-arm-kernel@...ts.infradead.org; imx@...ts.linux.dev
> Subject: [EXT] Re: [PATCH v3 1/3] dt-bindings: gpio: Add imx scu gpio driver
> bindings
> 
> Caution: EXT Email
> 
> On 10/08/2022 16:30, Shenwei Wang wrote:
> > Add binding document for the imx scu gpio driver.
> >
> > Signed-off-by: Shenwei Wang <shenwei.wang@....com>
> > ---
> >  .../bindings/gpio/fsl,imx-sc-gpio.yaml        | 40 +++++++++++++++++++
> > +properties:
> > +  compatible:
> > +    enum:
> > +      - fsl,imx8qxp-sc-gpio
> > +      - fsl,imx-scu-gpio
> 
> 
> This is too generic compatible and it even conflicts with the above...
> Your driver binds to both without driver data which is even more confusing.
> Make the compatible specific for one, given SoC.
> 

Oh, that's my bad. It is a typo. The generic compatible should be "fsl,imx-sc-gpio".  
So far there is no driver data required for both imx8qxp and imx8dxl, but it might be
required sometimes later in case the scu firmware is customized for a specified use case.
That's why I put the generic one here.

Thanks,
Shenwei

> 
> Best regards,
> Krzysztof