linux-kernel - Re: [PATCH v3 1/3] mfd: upboard: Add UP2 platform controller driver

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Date:   Thu, 15 Nov 2018 15:56:27 +0100
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Pavel Machek <pavel@....cz>
Cc:     "Dan O'Donovan" <dan@...tex.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Lee Jones <lee.jones@...aro.org>,
        Jacek Anaszewski <jacek.anaszewski@...il.com>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        linux-leds@...r.kernel.org, carlos.iglesias@...tex.com
Subject: Re: [PATCH v3 1/3] mfd: upboard: Add UP2 platform controller driver

On Sun, Nov 11, 2018 at 12:29 PM Pavel Machek <pavel@....cz> wrote:
>
> > +static void __reg_io_start(const struct upboard_ddata * const ddata)
> > +{
> > +     /*
> > +      * CLEAR signal must be pulsed low before any register access.
> > +      * This resets internal counters in the controller and marks
> > +      * the start of a new register access.
> > +      */
> > +     set_clear(ddata, 0);
> > +     set_clear(ddata, 1);
> > +}
>
> We normally reserve __ prefix for different stuff. This is not using
> it appropriately.

+1

I actively dislike __underscore_notation as it seems to be
completely arbitrary and ambiguous. I think even
do_the_stuff_reg_io_start() is better.

But please come up with something to the point and
descriptive! :)

Yours,
Linus Walleij