linux-kernel - Re: [PATCH v3 4/6] iio: imu: bmi270: Add support for BMI260

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Message-ID: <ae3213db-4edb-4fba-8f9d-c6f283735e9f@manjaro.org>
Date: Thu, 24 Oct 2024 13:40:50 +0700
From: Philip Müller <philm@...jaro.org>
To: Justin Weiss <justin@...tinweiss.com>,
 Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc: Jonathan Cameron <jic23@...nel.org>, Lars-Peter Clausen
 <lars@...afoo.de>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, linux-iio@...r.kernel.org,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 "Derek J . Clark" <derekjohn.clark@...il.com>,
 Alex Lanzano <lanzano.alex@...il.com>, Furkan Kardame
 <f.kardame@...jaro.org>, 'Roman Gilg' <romangg@...jaro.org>
Subject: Re: [PATCH v3 4/6] iio: imu: bmi270: Add support for BMI260

On 22/10/24 22:50, Justin Weiss wrote:
 > I couldn't find a shipping device with a bmi260 using the 10EC5280 ACPI
 > ID. Some prototype devices with the bmi260 may have used them:
 > https://lore.kernel.org/all/
 > CAFqHKTm2WRNkcSoBEE=oNbfu_9d9RagQHLydmv6q1=snO_MXyA@...l.gmail.com/

The Arch wiki has some recordings of that. Most likely got fixed in 
newer BIOSs to the BMI0XXX coding.

https://wiki.archlinux.org/title/AYA_NEO_2021#IMU_(Accelerometer_+_Gyro)
https://wiki.archlinux.org/title/GPD_Win_Max#IMU_(Accelerometer_+_Gyro)

On 22/10/24 22:50, Justin Weiss wrote:
> I can't find any evidence of BOSC0260 being used, besides existing in
> the Windows driver. As suggested in an earlier review, I added it here
> to encourage people looking at this driver in the future to use the
> correct ACPI ID.

Based on the BIOS code from the OrangePi Neo the default value was 
10EC5280 which got commented out and replaced by BMI0260. For BIOS v1.19 
however OrangePi will use BOSC0260. I might provide a new DSDT dump as 
soon as I get the newer BIOS from the vendor.

-- 
Best, Philip