linux-kernel - Re: [RFC PATCH v2 1/5] regulator: Add devm helpers for get and enable

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Date:   Sun, 9 Oct 2022 13:24:21 +0100
From:   Jonathan Cameron <jic23@...nel.org>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc:     Matti Vaittinen <mazziesaccount@...il.com>,
        Matti Vaittinen <matti.vaittinen@...rohmeurope.com>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Jagath Jog J <jagathjog1996@...il.com>,
        Nikita Yushchenko <nikita.yoush@...entembedded.com>,
        Cosmin Tanislav <demonsingur@...il.com>,
        linux-iio@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH v2 1/5] regulator: Add devm helpers for get and
 enable

On Thu, 6 Oct 2022 19:17:39 +0300
Andy Shevchenko <andriy.shevchenko@...ux.intel.com> wrote:

> On Thu, Oct 06, 2022 at 05:36:52PM +0300, Matti Vaittinen wrote:
> > A few regulator consumer drivers seem to be just getting a regulator,
> > enabling it and registering a devm-action to disable the regulator at
> > the driver detach and then forget about it.
> > 
> > We can simplify this a bit by adding a devm-helper for this pattern.
> > Add devm_regulator_get_enable() and devm_regulator_get_enable_optional()  
> 
> ...
> 
> > (cherry picked from commit b6058e052b842a19c8bb639798d8692cd0e7589f)  
> 
> Not sure:
>  - why this is in the commit message
>  - what it points to, since
> $ git show b6058e052b842a19c8bb639798d8692cd0e7589f
>  fatal: bad object b6058e052b842a19c8bb639798d8692cd0e7589f

These are now upstream in Linus' tree and in my testing branch.
I'd not normally advocate working on top of that (because I rebase it), but
if it is useful for this series go ahead.

Jonathan
 
> 
> > Already in Mark's regulator tree. Not to be merged. Included just for
> > the sake of the completeness. Will be dropped when series is rebased on
> > top of the 6.1-rc1  
> 
> Ah, I see, but does it mean the commit has been rebased or you used wrong SHA?
> 
> ...
> 
> > +static void regulator_action_disable(void *d)
> > +{
> > +	struct regulator *r = (struct regulator *)d;  
> 
> Cast is not needed.
> 
> > +	regulator_disable(r);
> > +}  
>