linux-kernel - Re: [RFC PATCH v2 1/3] regulator: core: Add regulator_lookup

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Message-ID: <20210825144133.GH5186@sirena.org.uk>
Date:   Wed, 25 Aug 2021 15:41:33 +0100
From:   Mark Brown <broonie@...nel.org>
To:     Laurent Pinchart <laurent.pinchart@...asonboard.com>
Cc:     Andy Shevchenko <andy.shevchenko@...il.com>,
        Daniel Scally <djrscally@...il.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Platform Driver <platform-driver-x86@...r.kernel.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Hans de Goede <hdegoede@...hat.com>,
        Mark Gross <mgross@...ux.intel.com>,
        Maximilian Luz <luzmaximilian@...il.com>,
        Kieran Bingham <kieran.bingham@...asonboard.com>,
        sailues@...dragon.ideasonboard.com
Subject: Re: [RFC PATCH v2 1/3] regulator: core: Add regulator_lookup_list

On Wed, Aug 25, 2021 at 04:59:35PM +0300, Laurent Pinchart wrote:

> From a camera sensor point of view, we want to avoid code duplication.
> Having to look for regulators using OF lookups *and* platform data in
> every single sensor driver is not a good solution. This means that, from
> a camera sensor driver point of view, we want to call regulator_get()
> (or the devm_ version) with a name, without caring about who establishes
> the mapping and how the lookup is performed. I don't care much
> personally if this would be implemented through swnode or a different
> mechanism, as long as the implementation can be centralized.

That's all orthogonal to this discussion, it's about how we configure
the regulators not how clients use the regulators - as you say anything
to do with how the regulator is configured should be totally transparent
there.

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