[Public] > -----Original Message----- > From: Akihiko Odaki <akihiko.odaki@xxxxxxxxx> > Sent: Thursday, July 14, 2022 23:46 > To: Natikar, Basavaraj <Basavaraj.Natikar@xxxxxxx> > Cc: Natikar, Basavaraj <Basavaraj.Natikar@xxxxxxx>; Jiri Kosina > <jikos@xxxxxxxxxx>; Benjamin Tissoires <benjamin.tissoires@xxxxxxxxxx>; > linux-input@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; Limonciello, > Mario <Mario.Limonciello@xxxxxxx> > Subject: Re: [PATCH v2] AMD_SFH: Add a DMI quirk entry for Chromebooks > > On 2022/07/15 13:41, Basavaraj Natikar wrote: > > > > > > 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 > > > > I use Fedora 36, not Chrome OS. The config is enabled on Fedora's > generic kernel. The kernel is built from commit > 78ca55889a549a9a194c6ec666836329b774ab6d from the upstream. > > Regards, > Akihiko Odaki Akihiko, FWIW - I think your patch is the correct direction for your situation (trying to load Fedora onto a system that previously shipped with ChromeOS). I think you just need to check the question that I had about discovery registers and if that probing is still a problem or not. Thanks,
