linux-kernel - Re: [PATCH v2 4/4] i2c: muxes: pca954x: Add regulator support

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Date:   Wed, 12 Jan 2022 10:31:30 +0100
From:   Wolfram Sang <wsa@...nel.org>
To:     Patrick Rudolph <patrick.rudolph@...ements.com>
Cc:     Peter Rosin <peda@...ntia.se>, Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>, linux-i2c@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 4/4] i2c: muxes: pca954x: Add regulator support

On Sat, Jan 08, 2022 at 07:57:58PM +0100, Patrick Rudolph wrote:
> Add an optional vdd regulator and enable it when found for devices
> that are powered off by default.
> 
> Signed-off-by: Patrick Rudolph <patrick.rudolph@...ements.com>

regulator support was recently added to the I2C core but had to be
reverted because of side effects [1]. I think you could make use of it
if it gets readded?

[1] a19f75de73c2 ("Revert "i2c: core: support bus regulator controlling in adapter"")


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