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Subject: Re: [RFC PATCH 0/9] Add support for Microsoft Surface System
 Aggregator Module
To:     Arnd Bergmann <arnd@arndb.de>
Cc:     "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
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        Darren Hart <dvhart@infradead.org>,
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        Platform Driver <platform-driver-x86@vger.kernel.org>
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From:   Maximilian Luz <luzmaximilian@gmail.com>
Message-ID: <0a861a86-e9eb-668c-f725-46336b48a86a@gmail.com>
Date:   Thu, 24 Sep 2020 23:07:01 +0200
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On 9/24/20 9:38 PM, Arnd Bergmann wrote:
> On Thu, Sep 24, 2020 at 8:59 PM Maximilian Luz <luzmaximilian@gmail.com> wrote:
>> On 9/24/20 10:26 AM, Arnd Bergmann wrote:
>>> On Thu, Sep 24, 2020 at 1:28 AM Maximilian Luz <luzmaximilian@gmail.com> wrote:
> 
>>> Note that drivers that connect to the bus typically don't live in the
>>> same subdirectory as the driver that operates the bus. E.g. the
>>> battery driver would go into drivers/power/supply and the input
>>> would go into drivers/input/ or drivers/hid.
>>
>> Right. I wonder if this also holds for devices that are directly
>> dependent on a special platform though? It could make sense to have them
>> under plaform/surface rather than in the individual subsystems as they
>> are only ever going to be used on this platform. On the other hand, one
>> could argue that having them in the subsystem directories is better for
>> maintainability.
> 
> Yes, absolutely. The subsystem maintainers are the ones that are
> most qualified of reviewing code that uses their subsystem, regardless
> of which bus is used underneath the device, and having all drivers
> for a subsystem in one place makes it much easier to refactor them
> all at once in case the internal interfaces are changed or common bugs
> are found in multiple drivers.

Got it.

Thank you for bearing with me and answering all my (probably a bit
silly) questions! I really appreciate it!

Regards,
Max