linux-kernel - Re: [RFC PATCH 0/9] Add support for Microsoft Surface System Aggregator Module

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Date:   Wed, 23 Sep 2020 17:30:14 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Maximilian Luz <luzmaximilian@...il.com>
Cc:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        linux-serial@...r.kernel.org,
        ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Rob Herring <robh@...nel.org>,
        Jiri Slaby <jirislaby@...nel.org>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Len Brown <lenb@...nel.org>,
        Blaž Hrastnik <blaz@...n.io>,
        Dorian Stoll <dorian.stoll@...p.io>
Subject: Re: [RFC PATCH 0/9] Add support for Microsoft Surface System
 Aggregator Module

On Wed, Sep 23, 2020 at 5:15 PM Maximilian Luz <luzmaximilian@...il.com> wrote:
>
> Hello,
>
> The Surface System Aggregator Module (we'll refer to it as Surface
> Aggregator or SAM below) is an embedded controller (EC) found on various
> Microsoft Surface devices. Specifically, all 4th and later generation
> Surface devices, i.e. Surface Pro 4, Surface Book 1 and later, with the
> exception of the Surface Go series and the Surface Duo. Notably, it
> seems like this EC can also be found on the ARM-based Surface Pro X [1].

I think this should go to drivers/platform/x86 or drivers/platform/surface/
along with other laptop vendor specific code rather than drivers/misc/.

I'll have a look at the code myself, but I'd prefer to have the maintainers
for the other laptop drivers review this properly.

       Arnd