linux-kernel - Re: [PATCH v6] gpio: pca953x: Add Maxim MAX7313 PWM support

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Date:   Sat, 4 Jul 2020 14:23:09 +0300
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>
Cc:     Miquel Raynal <miquel.raynal@...tlin.com>,
        Thierry Reding <thierry.reding@...il.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        linux-pwm@...r.kernel.org,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v6] gpio: pca953x: Add Maxim MAX7313 PWM support

On Fri, Jul 3, 2020 at 5:53 PM Uwe Kleine-König
<u.kleine-koenig@...gutronix.de> wrote:
> On Sun, May 03, 2020 at 12:54:53PM +0200, Miquel Raynal wrote:

...

> > +     ret = regmap_read(pca_chip->regmap, reg, &val);
> > +     mutex_unlock(&pca_chip->i2c_lock);
> > +     if (ret < 0) {
> > +             dev_err(dev, "Cannot retrieve PWM intensity (%d)\n", ret);
>
> Please use %pe for error codes.

%pe is mainly for error pointers, with plain integers it will look
awkward a bit.

> > +             return 0;
> > +     }

-- 
With Best Regards,
Andy Shevchenko