linux-kernel - Re: [PATCH] regulator: core: Add option to prevent disabling unused regulators

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Message-ID: <ZT/DfnWWYkYPzkWB@brian-x1>
Date:   Mon, 30 Oct 2023 10:53:50 -0400
From:   Brian Masney <bmasney@...hat.com>
To:     Javier Martinez Canillas <javierm@...hat.com>
Cc:     linux-kernel@...r.kernel.org,
        Manivannan Sadhasivam <mani@...nel.org>,
        Jonathan Corbet <corbet@....net>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        "Paul E. McKenney" <paulmck@...nel.org>,
        "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
        Randy Dunlap <rdunlap@...radead.org>,
        "Steven Rostedt (Google)" <rostedt@...dmis.org>,
        Tejun Heo <tj@...nel.org>, linux-doc@...r.kernel.org
Subject: Re: [PATCH] regulator: core: Add option to prevent disabling unused
 regulators

On Sat, Oct 28, 2023 at 12:24:03PM +0200, Javier Martinez Canillas wrote:
> This may be useful for debugging and develompent purposes, when there are
> drivers that depend on regulators to be enabled but do not request them.
> 
> It is inspired from the clk_ignore_unused and pd_ignore_unused parameters,
> that are used to keep firmware-enabled clocks and power domains on even if
> these are not used by drivers.
> 
> The parameter is not expected to be used in normal cases and should not be
> needed on a platform with proper driver support.
> 
> Signed-off-by: Javier Martinez Canillas <javierm@...hat.com>

Thanks for posting this! I've had a need for this. With Randy's feedback
addressed:

Reviewed-by: Brian Masney <bmasney@...hat.com>