linux-kernel - Re: [PATCH v1 28/43] input: keypad: ep93xx: add DT support for Cirrus EP93xx

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Date:   Mon, 5 Jun 2023 14:26:19 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Nikita Shubin <nikita.shubin@...uefel.me>
Cc:     Alexander Sverdlin <alexander.sverdlin@...il.com>,
        Arnd Bergmann <arnd@...db.de>,
        Linus Walleij <linus.walleij@...aro.org>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Jonathan Cameron <Jonathan.Cameron@...wei.com>,
        Michael Peters <mpeters@...eddedts.com>,
        Kris Bahnsen <kris@...eddedts.com>,
        linux-input@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 28/43] input: keypad: ep93xx: add DT support for
 Cirrus EP93xx

On Sun, Jun 04, 2023 at 10:14:52PM +0300, Nikita Shubin wrote:
> On Thu, 2023-06-01 at 19:54 +0300, Andy Shevchenko wrote:
> > On Thu, Jun 01, 2023 at 08:45:33AM +0300, Nikita Shubin wrote:

...

> > > +static int ep93xx_keypad_flags;
> > > +module_param(ep93xx_keypad_flags, int, 0);
> > > +MODULE_PARM_DESC(ep93xx_keypad_flags, "EP93XX keypad flags.");
> > 
> > Why? This pretty much looks like missing DT description.
> 
> From other patches from this series, i learned NOT to add new DT
> entities, not even with vendor prefix, no way!
> 
> May be i missing something of course...

We do not add module parameters to a new code either. So this will be
a dead end.

...

> Was never used in different ways than initializing all to zeroes
> including flags since 2.6 (didn't look before through), so i would
> prefer to drop this completely than moving it into device tree.

This sounds the best!

-- 
With Best Regards,
Andy Shevchenko