linux-kernel - Re: [PATCH 2/2] regulator: fixed: Set PROBE_PREFER

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Message-ID: <89bf362b-6c63-447a-ad4b-91385bf26dab@sirena.org.uk>
Date:   Mon, 13 Mar 2023 19:05:02 +0000
From:   Mark Brown <broonie@...nel.org>
To:     Douglas Anderson <dianders@...omium.org>
Cc:     mka@...omium.org, christian@...lschutter.com,
        Liam Girdwood <lgirdwood@...il.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] regulator: fixed: Set PROBE_PREFER_ASYNCHRONOUS

On Mon, Mar 13, 2023 at 11:18:20AM -0700, Douglas Anderson wrote:
> As of commit 218320fec294 ("regulator: core: Fix off-on-delay-us for
> always-on/boot-on regulators"), we now might have a big delay during
> probe of fixed regulators. That can have a significant boot speed
> impact. Let's mitigate this by preferring async probe for fixed
> regulators. The regulator framework itself has no issues with
> regulators probing in an asynchronous way. The fixed regulator driver
> is fairly straightforward and also has no issues.

This is going to be true for all regulators...

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