linux-kernel - Re: [PATCH 1/1] regulator: fixed: add system pm routines for pinctrl

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Date:   Thu, 12 Mar 2020 11:47:12 +0000
From:   Mark Brown <broonie@...nel.org>
To:     Peter Chen <peter.chen@....com>
Cc:     lgirdwood@...il.com, linux-kernel@...r.kernel.org,
        linux-imx@....com
Subject: Re: [PATCH 1/1] regulator: fixed: add system pm routines for pinctrl

On Thu, Mar 12, 2020 at 06:38:04PM +0800, Peter Chen wrote:
> At some systems, the pinctrl setting will be lost and needs to
> set as "sleep" state to save power consumption after system
> enters suspend. So, we need to configure pinctrl as "sleep" state
> when system enters suspend, and set it as "default" state after
> system resume. In this way, the pinctrl value can be recovered
> as "default" state after resuming.

Which pins exactly is this controlling?  I would not expect a fixed
voltage regulator to have pinctrl support, this feels like it's papering
over some other issue.

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