linux-kernel - Re: [PATCH v6 00/13] Add support for AXP192 PMIC

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Date:   Tue, 18 Oct 2022 16:15:37 +0100
From:   Aidan MacDonald <aidanmacdonald.0x0@...il.com>
To:     Andy Shevchenko <andy.shevchenko@...il.com>
Cc:     Jonathan Cameron <jic23@...nel.org>, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, wens@...e.org,
        lee.jones@...aro.org, sre@...nel.org, lgirdwood@...il.com,
        broonie@...nel.org, lars@...afoo.de, linus.walleij@...aro.org,
        brgl@...ev.pl, michael@...le.cc, samuel@...lland.org,
        linux-iio@...r.kernel.org, linux-pm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v6 00/13] Add support for AXP192 PMIC


Andy Shevchenko <andy.shevchenko@...il.com> writes:

> On Tue, Oct 18, 2022 at 2:06 AM Aidan MacDonald
> <aidanmacdonald.0x0@...il.com> wrote:
>> Jonathan Cameron <jic23@...nel.org> writes:
>> > On Mon, 17 Oct 2022 00:43:22 +0100
>> > Aidan MacDonald <aidanmacdonald.0x0@...il.com> wrote:
>
> ...
>
>> > Lee has recently expressed that he keen to take as much of these sorts
>> > of series as possible via the various subsystem trees.
>> >
>> > As such, it is useful to call out in the cover letter of such a series
>> > if this can be done.  For example, patch 9 (last IIO one) can't be
>> > applied without defines in patch 6 (I think).  Thus I'm assuming Lee
>> > will do an immutable branch with at least those patches on it.
>> >
>> > Perhaps worth expressing if that is also the case for the power
>> > and regulator subsystem patches?
>
>> Yep, the IIO, regulator, and power subsystem patches all depend on
>> the MFD patch.
>
> There are two types of dependencies: compile and functional.
>
>> Specifically, patches 6, 9, and 10 depend on patch 5.
>> I can't get rid of this dependency because the variant ID (AXP192_ID)
>> has to be defined centrally in the MFD patch.
>
> It's not clear which one you are talking about. If it's functional,
> then each driver can be taken separately via each concerned subsystem.

Johnathan was talking about compile dependencies -- the defines he's
mentioning -- so what I mean is compile dependencies. Patches 6/9/10
do not compile unless they are applied after patch 5, because of a new
enumerator AXP192_ID defined in patch 5.

Regards,
Aidan