linux-kernel - Re: [PATCH v2 10/11] gpio: pca953x: Convert to use bitmap API

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Message-ID: <20191023080109.GK32742@smile.fi.intel.com>
Date:   Wed, 23 Oct 2019 11:01:09 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        Rasmus Villemoes <linux@...musvillemoes.dk>,
        Yury Norov <yury.norov@...il.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        William Breathitt Gray <vilhelm.gray@...il.com>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        Marek Vasut <marek.vasut+renesas@...il.com>
Subject: Re: [PATCH v2 10/11] gpio: pca953x: Convert to use bitmap API

On Tue, Oct 22, 2019 at 08:03:00PM +0200, Geert Uytterhoeven wrote:
> On Tue, Oct 22, 2019 at 7:29 PM Andy Shevchenko
> <andriy.shevchenko@...ux.intel.com> wrote:
> > Instead of customized approach convert the driver to use bitmap API.

> >  #define MAX_BANK 5
> >  #define BANK_SZ 8
> > +#define MAX_LINE       (MAX_BANK * BANK_SZ)
> 
> Given (almost) everything is now bitmap (i.e. long [])-based, you might
> as well increase MAX_BANK to a multiple of 4 or 8, e.g. 8.

We can do it any time when we will really need it.

(Yes, I understand that we have no penalty for the change anyway)

-- 
With Best Regards,
Andy Shevchenko