linux-kernel - Re: [PATCH v2 2/5] dt-bindings: gpio: pca95xx: add entry for pcal6534 and PI4IOE5V6534Q

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Date:   Tue, 6 Sep 2022 17:31:22 +0300
From:   Andy Shevchenko <andriy.shevchenko@...el.com>
To:     Rob Herring <robh+dt@...nel.org>
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        Martyn Welch <martyn.welch@...labora.co.uk>,
        Bartosz Golaszewski <brgl@...ev.pl>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Martyn Welch <martyn.welch@...labora.com>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        devicetree@...r.kernel.org,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 2/5] dt-bindings: gpio: pca95xx: add entry for
 pcal6534 and PI4IOE5V6534Q

On Tue, Sep 06, 2022 at 09:19:52AM -0500, Rob Herring wrote:
> On Tue, Sep 6, 2022 at 8:33 AM Linus Walleij <linus.walleij@...aro.org> wrote:
> > On Tue, Sep 6, 2022 at 3:20 PM Andy Shevchenko
> > <andriy.shevchenko@...el.com> wrote:
> > > On Tue, Sep 06, 2022 at 03:08:00PM +0200, Linus Walleij wrote:

...

> > > Mysterious ways of DT...
> >
> > It's not DT, it's YAML that is mysterious. DT itself is a pretty
> > straight-forward
> > grammar, while YAML is a meta-grammar describing the DT grammar
> 
> Not YAML, but json-schema is the grammar. YAML is just the file format
> and it's a JSON compatible subset of YAML (no anchors, refs, tags).
> 
> > (ML stands for Meta Language).
> 
> Huh? yaml.org says: YAML Ain't Markup Language™

But Markup != Meta :-)

-- 
With Best Regards,
Andy Shevchenko