linux-kernel - Re: [PATCH v6 1/3] clk: x86: Add Atom PMC platform clocks

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Message-ID: <CAHp75VfW3T=GC2nY6jSa-vF841AeML_job603AAUm97vFb59cg@mail.gmail.com>
Date:   Tue, 13 Dec 2016 03:16:05 +0200
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
Cc:     Irina Tirdea <irina.tirdea@...el.com>, linux-clk@...r.kernel.org,
        "x86@...nel.org" <x86@...nel.org>,
        platform-driver-x86@...r.kernel.org,
        Stephen Boyd <sboyd@...eaurora.org>,
        Darren Hart <dvhart@...radead.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Michael Turquette <mturquette@...libre.com>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>,
        ALSA Development Mailing List <alsa-devel@...a-project.org>,
        Mark Brown <broonie@...nel.org>, Takashi Iwai <tiwai@...e.com>,
        Pierre-Louis Bossart <pierre-louis.bossart@...el.com>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Len Brown <lenb@...nel.org>,
        "linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v6 1/3] clk: x86: Add Atom PMC platform clocks

On Tue, Dec 13, 2016 at 2:15 AM, Pierre-Louis Bossart
<pierre-louis.bossart@...ux.intel.com> wrote:
>
>>> +#include <linux/platform_data/x86/clk-byt-plt.h>
>
>
> This was a suggestion of Darren Hart in agreement with Thomas Gleixner.
> see
> http://mailman.alsa-project.org/pipermail/alsa-devel/2016-October/113936.html
>
> Darren, did we get your proposal right?
>
>> Is it indeed platform data? I would not create platform_data/x86
>> without strong argument.
>> Perhaps include/linux/clk/x86_pmc.h? (Yes, I know about clk-lpss.h
>> which is old enough and was basically first try of clk stuff on x86)

Looking more into the patch I got another question. Do we really need
a platform driver for that?

That's what I think motivated me for the header location. And that's
why I asked about use of the driver/clock provider in the latter
patch.

If the answer is yes, then I doubt which location is preferable,
otherwise include/clk/x86_*.h looks appropriate.

Sorry if I wasn't clear in the first place.

-- 
With Best Regards,
Andy Shevchenko