linux-kernel - Re: [PATCH v2] AMD_SFH: Add a DMI quirk entry for Chromebooks

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Message-ID: <87d96692-7dbf-f846-f644-5a81f92efcb9@amd.com>
Date:   Fri, 15 Jul 2022 10:11:05 +0530
From:   Basavaraj Natikar <bnatikar@....com>
To:     Akihiko Odaki <akihiko.odaki@...il.com>
Cc:     Basavaraj Natikar <basavaraj.natikar@....com>,
        Jiri Kosina <jikos@...nel.org>,
        Benjamin Tissoires <benjamin.tissoires@...hat.com>,
        linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
        Mario Limonciello <mario.limonciello@....com>
Subject: Re: [PATCH v2] AMD_SFH: Add a DMI quirk entry for Chromebooks



On 7/14/2022 11:07 AM, Akihiko Odaki wrote:
> Google Chromebooks use Chrome OS Embedded Controller Sensor Hub instead
> of Sensor Hub Fusion and leaves MP2 uninitialized, which disables all
> functionalities, even including the registers necessary for feature
> detections.
>
> The behavior was observed with Lenovo ThinkPad C13 Yoga.
>
>
This driver should not get loaded in chrome OS by default.
Could you please provide details of Chrome OS Version and Kernel version to confirm the behavior.

Are you enabling manually CONFIG_AMD_SFH_HID config? 

Thanks,
Basavaraj