linux-kernel - Re: [PATCH v5 07/20] platform/x86: pmc

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Date:   Mon, 23 Aug 2021 09:35:23 +0200
From:   Hans de Goede <hdegoede@...hat.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc:     Kate Hsuan <hpa@...hat.com>,
        Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
        linux-kernel@...r.kernel.org, platform-driver-x86@...r.kernel.org,
        Dell.Client.Kernel@...l.com, Mark Gross <mgross@...ux.intel.com>,
        Alex Hung <alex.hung@...onical.com>,
        Rajneesh Bhardwaj <irenic.rajneesh@...il.com>,
        David E Box <david.e.box@...el.com>,
        Zha Qipeng <qipeng.zha@...el.com>,
        "David E. Box" <david.e.box@...ux.intel.com>,
        AceLan Kao <acelan.kao@...onical.com>,
        Jithu Joseph <jithu.joseph@...el.com>,
        Maurice Ma <maurice.ma@...el.com>
Subject: Re: [PATCH v5 07/20] platform/x86: pmc_atom: Move to intel
 sub-directory

Hi,

On 8/23/21 9:32 AM, Andy Shevchenko wrote:
> On Fri, Aug 20, 2021 at 08:18:17PM +0200, Hans de Goede wrote:
>> On 8/20/21 1:04 PM, Andy Shevchenko wrote:
>>> Move Intel Atom PMC driver to intel sub-directory to improve readability.
>>>
>>> Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
>>
>> This means that pmc_atom will now not be build if X86_PLATFORM_DRIVERS_INTEL
>> is not set (and PCI is enabled). Which will cause missing pmc_atom_read/_write
>> symbols in drivers/acpi/acpi_lpss.c. So I have dropped this patch from the
>> set, while applying the rest.
>>
>> Note I'm thinking that we should just remove the whole X86_PLATFORM_DRIVERS_INTEL
>> Kconfig option and in the drivers/platform/x86/Makefile replace:
>>
>> obj-$(CONFIG_X86_PLATFORM_DRIVERS_INTEL)                += intel/
>>
>> with:
>>
>> obj-y                                                   += intel/
>>
>> This will also allows us to fix the scu issue without needing any
>> changes to drivers/mfd/Kconfig .
>>
>> But this can all wait for the 2nd round of renames after 5.15-rc1.
>>
>> For now I'm moving forward with this v5 series, except with this
>> patch dropped.
> 
> Indeed. Thanks for the analysis.
> 
> Btw, should we convert Dell subdir to something similar in terms of Kconfig?

I'm not sure, if someone is trying to build a minimal kernel then being able
to say 'N' once for all the Dell drivers make sense. OTOH even someone
building a minimal (x86) config very likely still needs some of the Intel
drivers.

So I think we should just keep the Dell bits as is.

Regards,

Hans





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