8239f904f9
The raw temperature value is a number of counts from a certain starting point. The resolution of the temperature counts is different for the YAS variants. Temperature compensation for YAS532 version AC seems to be handled differently. It uses the deviation from 20 degree Celsius [1] whereas YAS530 and older versions of YAS532 apply solely the t value as a multiplier [2][3]. In funtion yas5xx_read_raw(), add case IIO_CHAN_INFO_PROCESSED. Remove scale of temperature as this isn't applied. Additionally correct sign of temperature channel in iio_chan_spec. It's already defined that way in the yas5xx_get_measure() function. [1] https://github.com/msm8916-mainline/android_kernel_qcom_msm8916/blob/GT-I9195I/drivers/iio/magnetometer/yas_mag_drv-yas532.c#L442 [2] https://github.com/NovaFusion/android_kernel_samsung_golden/blob/cm-12.1/drivers/sensor/compass/yas_mag_driver-yas530.c#L881-L883 [3] https://github.com/LineageOS/android_kernel_samsung_msm8930-common/blob/lineage-18.1/drivers/sensors/geomagnetic/yas_mag_driver-yas53x.c#L856-L858 Signed-off-by: Jakob Hauser <jahau@rocketmail.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/eb45f328c7a81eb622c6a8cfc5c468ea58bbdace.1660337264.git.jahau@rocketmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.