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SubjectRe: [RFC PATCH 0/9] Add support for Microsoft Surface System Aggregator Module
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.

Arnd

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