linux-kernel - Re: [PATCH v3 1/5] platform: Add Surface platform directory

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Message-ID: <9711c3c9-63ed-8c9f-b77b-d1feb2c07f78@gmail.com>
Date:   Thu, 8 Oct 2020 17:18:01 +0200
From:   Maximilian Luz <luzmaximilian@...il.com>
To:     Andy Shevchenko <andy.shevchenko@...il.com>
Cc:     Platform Driver <platform-driver-x86@...r.kernel.org>,
        Darren Hart <dvhart@...radead.org>,
        Hans de Goede <hdegoede@...hat.com>,
        Mark Gross <mgross@...ux.intel.com>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Gayatri Kammela <gayatri.kammela@...el.com>,
        Enric Balletbo i Serra <enric.balletbo@...labora.com>,
        Blaž Hrastnik <blaz@...n.io>,
        Stephen Just <stephenjust@...il.com>,
        Dan Carpenter <dan.carpenter@...cle.com>,
        Benjamin Tissoires <benjamin.tissoires@...hat.com>,
        Chen Yu <yu.c.chen@...el.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 1/5] platform: Add Surface platform directory

On 10/8/20 4:52 PM, Andy Shevchenko wrote:
> On Thu, Oct 8, 2020 at 5:35 PM Maximilian Luz <luzmaximilian@...il.com> wrote:
>>
>> It may make sense to split the Microsoft Surface hardware platform
>> drivers out to a separate subdirectory, since some of it may be shared
>> between ARM and x86 in the future (regarding devices like the Surface
>> Pro X).
>>
>> Further, newer Surface devices will require additional platform drivers
>> for fundamental support (mostly regarding their embedded controller),
>> which may also warrant this split from a size perspective.
>>
>> This commit introduces a new platform/surface subdirectory for the
>> Surface device family, with subsequent commits moving existing Surface
>> drivers over from platform/x86.
>>
>> A new MAINTAINERS entry is added for this directory. Patches to files in
>> this directory will be taken up by the platform-drivers-x86 team (i.e.
>> Hans de Goede and Mark Gross) after they have been reviewed by
>> Maximilian Luz.
> 
> Thanks for the patch, my minor comments below.
> 
> ...
> 
>> +MICROSOFT SURFACE PLATFORM DRIVERS
> 
> (1)
> 
>> +M:     Hans de Goede <hdegoede@...hat.com>
>> +M:     Mark Gross <mgross@...ux.intel.com>
>> +M:     Maximilian Luz <luzmaximilian@...il.com>
>> +L:     platform-driver-x86@...r.kernel.org
>> +S:     Maintained
> 
>> +T:     git git://git.infradead.org/linux-platform-drivers-x86.git
> 
> It's now on kernel.org.
> git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git

Thank you, will update this. FYI: The entry was mostly copied from the
X86 PLATFORM DRIVERS entry, so it should probably be updated there, too.

>> +F:     drivers/platform/surface/
> 
>> @@ -9,3 +9,4 @@ obj-$(CONFIG_MIPS)              += mips/
>>   obj-$(CONFIG_OLPC_EC)          += olpc/
>>   obj-$(CONFIG_GOLDFISH)         += goldfish/
>>   obj-$(CONFIG_CHROME_PLATFORMS) += chrome/
>> +obj-$(CONFIG_SURFACE_PLATFORM) += surface/
> 
> (2)
> 
>> +menuconfig SURFACE_PLATFORM
> 
> (3a)
> 
>> +if SURFACE_PLATFORM
> 
> (3b)
> 
>> +endif # SURFACE_PLATFORM
> 
> (3c)
> 
> I think in (1), (2) and (3) it makes sense to mimic Chrome, i.e. use
> plural: PLATFORMS.

I agree with (2) and (3), but I'm not so sure about (1). For Chrome, the
entry is CHROME HARDWARE PLATFORM SUPPORT, so should I change it to
MICROSOFT SURFACE HARDWARE PLATFORM SUPPORT?

Thanks,
Max