linux-kernel - Re: [RFC PATCH 0/2] Add software node support to regulator framework

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Date:   Mon, 12 Jul 2021 13:42:23 +0100
From:   Mark Brown <broonie@...nel.org>
To:     Andy Shevchenko <andy.shevchenko@...il.com>
Cc:     Daniel Scally <djrscally@...il.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        platform-driver-x86@...r.kernel.org, hdegoede@...hat.com,
        mgross@...ux.intel.com, luzmaximilian@...il.com,
        lgirdwood@...il.com, laurent.pinchart@...asonboard.com,
        kieran.bingham@...asonboard.com
Subject: Re: [RFC PATCH 0/2] Add software node support to regulator framework

On Sun, Jul 11, 2021 at 12:37:03PM +0300, Andy Shevchenko wrote:
> On Fri, Jul 9, 2021 at 8:05 PM Mark Brown <broonie@...nel.org> wrote:
> > On Thu, Jul 08, 2021 at 11:42:24PM +0100, Daniel Scally wrote:

> > What is a software node and why would we want to use one here?

> Software node is a representation of (missed and / or quirked)
> firmware nodes in the code.

> > Why are we not just using board files, what does this new abstraction
> > solve?

> Software node _is_ a board file part. The idea behind that is that the
> driver, which requires any additional / necessary property that has
> been missed in the firmware nodes, wouldn't need special treatment if
> that property comes from a board file rather than firmware.

This doesn't seem to correspond with what these patches are doing,
they're creating something which bears no relation to any firmware
interface and the code is specifically looking for swnodes.

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