linux-kernel - Re: [PATCH v4 05/11] pwm: add support for sl28cpld PWM controller

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Date:   Mon, 8 Jun 2020 08:46:30 +0100
From:   Lee Jones <lee.jones@...aro.org>
To:     Michael Walle <michael@...le.cc>
Cc:     linux-gpio@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-hwmon@...r.kernel.org,
        linux-pwm@...r.kernel.org, linux-watchdog@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        Rob Herring <robh+dt@...nel.org>,
        Jean Delvare <jdelvare@...e.com>,
        Guenter Roeck <linux@...ck-us.net>,
        Thierry Reding <thierry.reding@...il.com>,
        Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>,
        Wim Van Sebroeck <wim@...ux-watchdog.org>,
        Shawn Guo <shawnguo@...nel.org>, Li Yang <leoyang.li@....com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Jason Cooper <jason@...edaemon.net>,
        Marc Zyngier <maz@...nel.org>, Mark Brown <broonie@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: Re: [PATCH v4 05/11] pwm: add support for sl28cpld PWM controller

On Fri, 05 Jun 2020, Michael Walle wrote:

> Am 2020-06-05 10:49, schrieb Lee Jones:
> [..]
> > > +static inline struct sl28cpld_pwm *to_sl28cpld_pwm(struct pwm_chip
> > > *chip)
> > > +{
> > > +	return container_of(chip, struct sl28cpld_pwm, pwm_chip);
> > > +}
> > 
> > Why not save yourself the trouble and just:
> > 
> >   struct sl28cpld_pwm *pwm = dev_get_drvdata(chip->dev);
> 
> Is there a reason why not a single pwm driver uses something like that?

Copy/paste?  Habit?

-- 
Lee Jones [李琼斯]
Linaro Services Technical Lead
Linaro.org │ Open source software for ARM SoCs
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