linux-kernel - Re: [PATCH RFT/RFC] mfd: cs42l43: setup true links with software nodes

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Message-ID: <CAMRc=MebbjT7QAn8M0q0MsbRhTA-CUNKmo4nUPgXBXrmU-4D6g@mail.gmail.com>
Date: Wed, 19 Nov 2025 15:09:33 +0100
From: Bartosz Golaszewski <brgl@...ev.pl>
To: Charles Keepax <ckeepax@...nsource.cirrus.com>
Cc: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>, 
	David Rhodes <david.rhodes@...rus.com>, Richard Fitzgerald <rf@...nsource.cirrus.com>, 
	Lee Jones <lee@...nel.org>, Mark Brown <broonie@...nel.org>, 
	Philipp Zabel <p.zabel@...gutronix.de>, Linus Walleij <linus.walleij@...aro.org>, 
	Maciej Strozek <mstrozek@...nsource.cirrus.com>, Andy Shevchenko <andy@...nel.org>, 
	linux-sound@...r.kernel.org, patches@...nsource.cirrus.com, 
	linux-kernel@...r.kernel.org, linux-spi@...r.kernel.org, 
	Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: Re: [PATCH RFT/RFC] mfd: cs42l43: setup true links with software nodes

On Wed, Nov 19, 2025 at 2:27 PM Charles Keepax
<ckeepax@...nsource.cirrus.com> wrote:
>
> I think as Andy pointed out though the first 4 patches in your
> chain do loosely want we want. Previously, we used the name to
> point to the actual pinctrl driver, your patches should let us
> do that properly through the fwnode. So we can drop the pinctrl
> swnode and just have the cs-gpios bit point at the actual fwnode
> instead. I am trying to hack together a strawman but its failing
> in a lightly odd way. Hopefully I can get that sorted fairly
> soon and post, or I guess I could post a version earlier if you
> wanted a look in the knowledge it still doesn't work?
>

If your solution won't work after all, we can try using machine lookup
instead. We have all the blocks except for support for the "undefined"
GPIO in machine lookup. That would need to be added.

Bart