linux-kernel - Re: [PATCH v2 0/3] iio: magnetometer: add support for the Allegro MicroSystems ALS31300 3-D Linear Hall Effect Sensor

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Message-ID: <20241026182643.1e6057e5@jic23-huawei>
Date: Sat, 26 Oct 2024 18:26:43 +0100
From: Jonathan Cameron <jic23@...nel.org>
To: Neil Armstrong <neil.armstrong@...aro.org>
Cc: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>, Lars-Peter Clausen <lars@...afoo.de>,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-iio@...r.kernel.org
Subject: Re: [PATCH v2 0/3] iio: magnetometer: add support for the Allegro
 MicroSystems ALS31300 3-D Linear Hall Effect Sensor

On Mon, 21 Oct 2024 14:38:52 +0200
Neil Armstrong <neil.armstrong@...aro.org> wrote:

> The Allegro MicroSystems ALS31300 is a 3-D Linear Hall Effect Sensor
> mainly used in 3D sensing applications for head-on motion.
> 
> The device is configured over I2C, and as part of the Sensor
> data the temperature core is also provided.
> 
> While the device provides an IRQ gpio, it depends on a configuration
> programmed into the internal EEPROM, thus only the default mode
> is supported and buffered input via trigger is also supported
> to allow streaming values with the same sensing timestamp.
> 
> The device can be configured with different sensitivities in factory,
> but the sensitivity value used to calculate value into the Gauss
> unit is not available from registers, thus the sensitivity is
> provided by the compatible/device-id string which is based
> on the part number as described in the datasheet page 2.
>     
> The datasheet is available on the product website at [1].
> 
> [1] https://www.allegromicro.com/en/products/sense/linear-and-angular-position/linear-position-sensor-ics/als31300
> 
> Signed-off-by: Neil Armstrong <neil.armstrong@...aro.org>
Nice work. Applied to the togreg branch of iio.git and pushed out as testing
to let 0-day take a first look at it.

Thanks,

Jonathan