linux-kernel - Re: [PATCH v7 5/5] mfd: max77541: Add ADI MAX77541/MAX77540 PMIC Support

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Message-ID: <920531c8-b5c1-409a-9cda-3ec77ba944e7@sirena.org.uk>
Date:   Thu, 29 Jun 2023 19:22:10 +0100
From:   Mark Brown <broonie@...nel.org>
To:     Rob Herring <robh@...nel.org>
Cc:     Lee Jones <lee@...nel.org>,
        William Breathitt Gray <william.gray@...aro.org>,
        "Sahin, Okan" <Okan.Sahin@...log.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Jonathan Cameron <jic23@...nel.org>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Cosmin Tanislav <demonsingur@...il.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Caleb Connolly <caleb.connolly@...aro.org>,
        Marcus Folkesson <marcus.folkesson@...il.com>,
        "Bolboaca, Ramona" <Ramona.Bolboaca@...log.com>,
        ChiYuan Huang <cy_huang@...htek.com>,
        "Tilki, Ibrahim" <Ibrahim.Tilki@...log.com>,
        Arnd Bergmann <arnd@...db.de>,
        Hugo Villeneuve <hvilleneuve@...onoff.com>,
        ChiaEn Wu <chiaen_wu@...htek.com>,
        Haibo Chen <haibo.chen@....com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-iio@...r.kernel.org" <linux-iio@...r.kernel.org>
Subject: Re: [PATCH v7 5/5] mfd: max77541: Add ADI MAX77541/MAX77540 PMIC
 Support

On Thu, Jun 29, 2023 at 12:14:00PM -0600, Rob Herring wrote:
> On Thu, Jun 29, 2023 at 11:59 AM Mark Brown <broonie@...nel.org> wrote:

> > Right, I'm suggesting applying the core part without waiting for every
> > single leaf driver to be lined up rather than the other way around -
> > that way the core part is stable and the leaf drivers only have issues
> > with changes in their subsystems that they'll have anyway even with
> > waiting.  Leaf drivers can be added on top as they're ready and if
> > something misses a release then it can go through the subsystem, and if
> > people do end up wandering off then you've still got whatever did get
> > merged in case someone else wants to pick things up.

> I misunderstood. I thought you wanted to apply things to get them out
> of your queue.

Well, I *do* but that's got issues especially when things get stuck so
I'm not going to.

>                That doesn't work when the leaf drivers depend on the
> core, so what do we do there? A branch or Lee takes everything? That's
> almost always the case with the bindings as the core binding
> references the child node bindings. My preference there would be that
> Lee picks up all the bindings with the core driver.

My suggestion is that once the core is ready to apply that and also
start applying everything else to Lee's tree as it's ready.  A branch
also works and might come in handy anyway in the case where there's some
subsystem wide updates in some other subsystem (since it avoids having
to pull the whole MFD tree in or anything like that) but it's not
essential to the idea.

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