linux-kernel - Re: [PATCH v5 1/5] dt-bindings: gpio: Add HPE GXP GPIO

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Message-ID: <20230706190523.GA155073-robh@kernel.org>
Date:   Thu, 6 Jul 2023 13:05:23 -0600
From:   Rob Herring <robh@...nel.org>
To:     "Hawkins, Nick" <nick.hawkins@....com>
Cc:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        "Verdun, Jean-Marie" <verdun@....com>,
        "linus.walleij@...aro.org" <linus.walleij@...aro.org>,
        "brgl@...ev.pl" <brgl@...ev.pl>,
        "krzysztof.kozlowski+dt@...aro.org" 
        <krzysztof.kozlowski+dt@...aro.org>,
        "jdelvare@...e.com" <jdelvare@...e.com>,
        "linux@...ck-us.net" <linux@...ck-us.net>,
        "andy.shevchenko@...il.com" <andy.shevchenko@...il.com>,
        "linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-hwmon@...r.kernel.org" <linux-hwmon@...r.kernel.org>
Subject: Re: [PATCH v5 1/5] dt-bindings: gpio: Add HPE GXP GPIO

On Thu, Jul 06, 2023 at 02:12:12PM +0000, Hawkins, Nick wrote:
> Greetings Krzysztof,
> 
> Thank you for the feedback. I see that due to a patch conflict I
> reintroduced some of the alignment issues you had me fix in
> a previous version. This was a mistake and I will correct this.
> 
> > > v5:
> > > *Removed use of gpio-gxp in favor of just supporting
> > > hpe,gxp-gpio-pl for now as the full gpio-gxp will
> > > require a much larger patchset
> 
> > Bindings describe hardware, not drivers, and should be rather complete.
> 
> This patch is intended to still cover the hardware interface between our
> BMC and our CPLD which gathers GPIO for us. The part of the binding I
> removed was a completely separate interface with different mechanisms
> for reading GPIOs. With that said I could keep these two interfaces
> separate in yaml files: Having a yaml for hpe,gxp-gpio and another for
> hpe,gxp-gpio-pl. Would this be a better approach?

If they are independent (and it sounds like they are), then yes.

Rob