linux-kernel - Re: [RFC v3 2/7] platform/x86: intel_pmc_ipc: Use MFD framework to create dependent devices

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Message-ID: <CAHp75VfC-d5p7_G65uh=w0tfRok1_TZAh3Re9088re=gsz1rOw@mail.gmail.com>
Date:   Wed, 4 Oct 2017 15:34:29 +0300
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Kuppuswamy Sathyanarayanan 
        <sathyanarayanan.kuppuswamy@...ux.intel.com>
Cc:     Alessandro Zummo <a.zummo@...ertech.it>,
        "x86@...nel.org" <x86@...nel.org>,
        Wim Van Sebroeck <wim@...ana.be>,
        Ingo Molnar <mingo@...hat.com>,
        Alexandre Belloni <alexandre.belloni@...e-electrons.com>,
        Zha Qipeng <qipeng.zha@...el.com>,
        "H. Peter Anvin" <hpa@...or.com>,
        "dvhart@...radead.org" <dvhart@...radead.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Lee Jones <lee.jones@...aro.org>,
        Andy Shevchenko <andy@...radead.org>,
        Souvik Kumar Chakravarty <souvik.k.chakravarty@...el.com>,
        linux-rtc@...r.kernel.org, linux-watchdog@...r.kernel.org,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Platform Driver <platform-driver-x86@...r.kernel.org>,
        Sathyanarayanan Kuppuswamy Natarajan <sathyaosid@...il.com>
Subject: Re: [RFC v3 2/7] platform/x86: intel_pmc_ipc: Use MFD framework to
 create dependent devices

On Wed, Oct 4, 2017 at 4:00 AM, sathyanarayanan kuppuswamy
<sathyanarayanan.kuppuswamy@...ux.intel.com> wrote:
> On 10/01/2017 07:44 AM, Andy Shevchenko wrote:
>> On Tue, Sep 5, 2017 at 8:37 AM,

>>> +       punit_cell.id = -1;
>
> I will remove this line in next version.
>>>
>>> +       return devm_mfd_add_devices(&pdev->dev, PLATFORM_DEVID_AUTO,
>>> +                       &punit_cell, 1, NULL, 0, NULL);
>>
>> IIRC you don't need to file cell ID in case of DEVID_AUTO.
>
> I am planning to use DEVID_NONE here to match the current behavior. Unless
> you have some concerns?

Preventing behaviour is a good thing to do.
In either way cell.id can be leaved 0.

-- 
With Best Regards,
Andy Shevchenko