Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
MIME-Version: 1.0
References: <20220829133923.1114555-1-martyn.welch@collabora.com>
 <20220829133923.1114555-2-martyn.welch@collabora.com> <9db9dcf8-6299-acec-c09e-603afde9a239@linaro.org>
 <CACRpkdb1-LXwLdV3qLMc+i_VaLoJ-mTs=+0QtuJtNaQR_xVpxQ@mail.gmail.com> <97b256a7-670f-c681-424d-854d15145d24@linaro.org>
In-Reply-To: <97b256a7-670f-c681-424d-854d15145d24@linaro.org>
From:   Linus Walleij <linus.walleij@linaro.org>
Date:   Thu, 8 Sep 2022 14:06:13 +0200
Message-ID: <CACRpkdY5sOz6a1P23f2hs8UL__O2cBtDdMcHt1nxSX59ZOBzaQ@mail.gmail.com>
Subject: Re: [PATCH 2/5] dt-bindings: gpio: pca95xx: add entry for pcal6534
 and PI4IOE5V6534Q
To:     Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Cc:     Martyn Welch <martyn.welch@collabora.com>,
        Bartosz Golaszewski <brgl@bgdev.pl>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        kernel@collabora.com, linux-gpio@vger.kernel.org,
        devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Content-Type: text/plain; charset="UTF-8"
Precedence: bulk

On Wed, Aug 31, 2022 at 3:34 PM Krzysztof Kozlowski
<krzysztof.kozlowski@linaro.org> wrote:

> If you have specific+fallback compatible (e.g. diodes,pi4ioe5v6534q,
> nxp,pcal6534), you can always introduce changes in the driver because it
> will match to the specific one (diodes). You could even introduce
> incompatible changes, if you insist, and the effect would be the same as
> adding now two compatibles in the driver.

I know, what I mean is that this binding should probably have fallback
compatibles for the TI, Exar, Onnn and Maxim compatibles listed in
the bindings, I bet they are all compatible with some nxp,pcaNNNN.

We could fix that, perhaps.

Yours,
Linus Walleij