linux-kernel - Re: [PATCH v1 09/11] regulator: bd9576: switch to using devm_fwnode_gpiod

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Date:   Mon, 5 Sep 2022 16:23:05 +0300
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Matti Vaittinen <mazziesaccount@...il.com>
Cc:     Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Thierry Reding <thierry.reding@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Lorenzo Pieralisi <lpieralisi@...nel.org>,
        Claudiu Beznea <claudiu.beznea@...rochip.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Wim Van Sebroeck <wim@...ux-watchdog.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Guenter Roeck <linux@...ck-us.net>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Felipe Balbi <balbi@...nel.org>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
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Subject: Re: [PATCH v1 09/11] regulator: bd9576: switch to using devm_fwnode_gpiod_get()

On Mon, Sep 5, 2022 at 4:19 PM Matti Vaittinen <mazziesaccount@...il.com> wrote:
> On 9/5/22 13:40, Andy Shevchenko wrote:
> > On Mon, Sep 5, 2022 at 9:33 AM Dmitry Torokhov
> > <dmitry.torokhov@...il.com> wrote:

...

> >> +       vout_mode = device_property_read_bool(pdev->dev.parent,
> >> +                                             "rohm,vout1-en-low");
> >
> > They all using parent device and you may make code neater by adding
> >
> >    struct device *parent = pdev->dev.parent;
>
> This is a matter of personal preference. I prefer seeing
> pdev->dev.parent - as it is more obvious (to me) what the 'pdev' is than
> what 'parent' would be.
>
> I'd use the local variable only when it shortens at least one of the
> lines so that we avoid splitting it. After that being said - I'm not
> going to argue over this change either if one who is improving the
> driver wants to use the "helper" variable here.

And I believe the quoted one is exactly the case of what you are saying above.

-- 
With Best Regards,
Andy Shevchenko