1121614 Commits

Author SHA1 Message Date
Andy Shevchenko
d05d737791 iio: magnetometer: yamaha-yas530: Use dev_err_probe()
Unify error message format by using dev_err_probe().

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220831141530.80572-3-andriy.shevchenko@linux.intel.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-04 16:31:03 +01:00
Andy Shevchenko
ff1c17e9a7 iio: magnetometer: yamaha-yas530: Make strings const in chip info
For better compiler coverage mark strings consts in the chip info.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220831141530.80572-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-04 16:31:03 +01:00
Andy Shevchenko
741d1e3783 iio: magnetometer: yamaha-yas530: Use pointers as driver data
Unify ID tables to use pointers for driver data. It will allow
to simplify the driver later on.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220831141530.80572-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-04 16:31:03 +01:00
Oleksij Rempel
3f8dd0a7dc iio: adc: tsc2046: silent spi_device_id warning
Add spi_device_id to silent following kernel runtime warning:
"SPI driver tsc2046 has no spi_device_id for ti,tsc2046e-adc".

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220904100203.3614502-3-o.rempel@pengutronix.de
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-04 14:55:03 +01:00
Oleksij Rempel
a616a6a1ff iio: adc: tsc2046: add vref support
If VREF pin is attached, we should use external VREF source instead of
the internal. Otherwise we will get wrong measurements on some of the channel
types.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220904100203.3614502-2-o.rempel@pengutronix.de
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-04 14:55:03 +01:00
Oleksij Rempel
6cda6aa83c dt-bindings: iio: adc: ti,tsc2046: add vref-supply property
Add property for the voltage reference supply.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220904100203.3614502-1-o.rempel@pengutronix.de
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-04 14:55:03 +01:00
Shreeya Patel
f5ffeca508 iio: light: ltrf216a: Add raw attribute
Add IIO_CHAN_INFO_RAW to the mask to be able to read raw values
from the light sensor.

The userspace code for brightness control in steam deck uses the
in_illuminance_input value through sysfs and multiplies it
with a constant stored in BIOS at factory calibration time.

The downstream driver for LTRF216A that we have been using
has incorrect formula for LUX calculation which we corrected
in the upstreamed driver.

Now to be able to use the upstreamed driver, we need to add some
magic in userspace so that the brightness control works like before
even with the updated LUX formula.

Hence, we need the raw data to calculate a constant that can be
added in userspace code.

Downstream driver LUX formula :-
(greendata*8*LTRF216A_WIN_FAC) / (data->als_gain_fac*data->int_time_fac*10)

Upstreamed driver LUX formula :-
(greendata*45*LTRF216A_WIN_FAC) / (data->als_gain_fac*data->int_time_fac)

greendata is the ALS_DATA which we would like to get through sysfs using
the raw attribute.

Signed-off-by: Shreeya Patel <shreeya.patel@collabora.com>
Link: https://lore.kernel.org/r/20220812100424.529425-1-shreeya.patel@collabora.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-30 18:35:38 +01:00
Rob Herring
c682c96334 dt-bindings: iio: Add missing (unevaluated|additional)Properties on child nodes
In order to ensure only documented properties are present, node schemas
must have unevaluatedProperties or additionalProperties set to false
(typically).

Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220823145649.3118479-2-robh@kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-30 18:35:38 +01:00
Antoniu Miclaus
1b55d33e02 MAINTAINERS: fix Analog Devices forum links
Fix the links to redirect to the correct forum subsection for the latest
Analog Devices drivers added.

Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Link: https://lore.kernel.org/r/20220824170913.13411-1-antoniu.miclaus@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-30 18:35:38 +01:00
wangjianli
1cf507cfdd iio/accel: fix repeated words in comments
Delete the redundant word 'in'.

Signed-off-by: wangjianli <wangjianli@cdjrlc.com>
Link: https://lore.kernel.org/r/20220823140023.2567-1-wangjianli@cdjrlc.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-30 18:35:38 +01:00
Dmitry Rokosov
4eba8239c8 dt-bindings: iio: accel: add dt-binding schema for msa311 accel driver
Introduce devicetree binding json-schema for MSA311 tri-axial,
low-g accelerometer driver.

Signed-off-by: Dmitry Rokosov <ddrokosov@sberdevices.ru>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220822175011.2886-5-ddrokosov@sberdevices.ru
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-30 18:35:38 +01:00
Dmitry Rokosov
1ca2cfbc0c iio: add MEMSensing MSA311 3-axis accelerometer driver
MSA311 is a tri-axial, low-g accelerometer with I2C digital output for
sensitivity consumer applications. It has dynamic user-selectable full
scales range of +-2g/+-4g/+-8g/+-16g and allows acceleration measurements
with output data rates from 1Hz to 1000Hz.

This driver supports following MSA311 features:
    - IIO interface
    - Different power modes: NORMAL and SUSPEND (using pm_runtime)
    - ODR (Output Data Rate) selection
    - Scale and samp_freq selection
    - IIO triggered buffer, IIO reg access
    - NEW_DATA interrupt + trigger

Below features to be done:
    - Motion Events: ACTIVE, TAP, ORIENT, FREEFALL
    - Low Power mode

Datasheet: https://cdn-shop.adafruit.com/product-files/5309/MSA311-V1.1-ENG.pdf
Signed-off-by: Dmitry Rokosov <ddrokosov@sberdevices.ru>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220822175011.2886-4-ddrokosov@sberdevices.ru
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-30 18:35:38 +01:00
Dmitry Rokosov
4905949395 dt-bindings: vendor-prefixes: add MEMSensing Microsystems Co., Ltd.
MEMSensing Microsystems (Suzhou, China) Co., Ltd. operates as a micro
electromechanical system technology company which produces micro
electromechanical system microphones and sensors.
MEMSensing Microsystems (Suzhou, China) Co., Ltd. applies its products
in consumer electronics, industrial control, medical electronics
and automotive, and other fields.

Signed-off-by: Dmitry Rokosov <ddrokosov@sberdevices.ru>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220822175011.2886-3-ddrokosov@sberdevices.ru
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-28 17:00:30 +01:00
Andy Shevchenko
1f5d7ea73c lib/string_helpers: Add str_read_write() helper
Add str_read_write() helper to return 'read' or 'write' string literal.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Dmitry Rokosov <ddrokosov@sberdevices.ru>
Link: https://lore.kernel.org/r/20220822175011.2886-2-ddrokosov@sberdevices.ru
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-28 17:00:30 +01:00
Dmitry Rokosov
c05c3e5d4e iio: common: scmi_sensors: use HZ macro from units.h
Remove duplicated definition of UHZ_PER_HZ, because it's available in
the units.h as MICROHZ_PER_HZ.

Signed-off-by: Dmitry Rokosov <ddrokosov@sberdevices.ru>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220812165243.22177-5-ddrokosov@sberdevices.ru
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-28 16:57:56 +01:00
Dmitry Rokosov
fe49ce7abd iio: accel: adxl345: use HZ macro from units.h
Remove duplicated definition of NHZ_PER_HZ, because it's available in
the units.h as NANOHZ_PER_HZ.

Signed-off-by: Dmitry Rokosov <ddrokosov@sberdevices.ru>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220812165243.22177-4-ddrokosov@sberdevices.ru
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-28 16:57:37 +01:00
Dmitry Rokosov
d2a4cbcb8b units: complement the set of Hz units
Currently, Hz units do not have milli, micro and nano Hz coefficients.
Some drivers (IIO especially) use their analogues to calculate
appropriate Hz values. This patch includes them to units.h definitions,
so they can be used from different kernel places.

Signed-off-by: Dmitry Rokosov <ddrokosov@sberdevices.ru>
Link: https://lore.kernel.org/r/20220812165243.22177-3-ddrokosov@sberdevices.ru
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-28 16:52:28 +01:00
Joe Simmons-Talbott
682ca76bc6 iio: Avoid multiple line dereference for mask
Prefer lines > 80 characters over splitting dereferences across multiple
lines. Reported by checkpatch.pl.

Signed-off-by: Joe Simmons-Talbott <joetalbott@gmail.com>
Link: https://lore.kernel.org/r/20220819182012.219523-1-joetalbott@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-20 13:17:26 +01:00
William Breathitt Gray
955c2aa9cf iio: stx104: Move to addac subdirectory
The stx104 driver supports both ADC and DAC functionality.

Signed-off-by: William Breathitt Gray <william.gray@linaro.org>
Link: https://lore.kernel.org/r/20220815222921.138945-1-william.gray@linaro.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-20 13:09:38 +01:00
Jonathan Cameron
83856aaab4 staging: iio: frequency: ad9832: Fix alignment for DMA safety
____cacheline_aligned is an insufficient guarantee for non-coherent DMA
on platforms with 128 byte cachelines above L1.  Switch to the updated
IIO_DMA_MINALIGN definition.  Whilst here, move the marking to cover
the whole union. That has no functional affect, but makes it slightly
easier to see what is going on.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220813160600.1157169-1-jic23@kernel.org
2022-08-20 12:54:43 +01:00
Krzysztof Kozlowski
14a4d22ead dt-bindings: iio: temperature: use spi-peripheral-props.yaml
Instead of listing directly properties typical for SPI peripherals,
reference the spi-peripheral-props.yaml schema.  This allows using all
properties typical for SPI-connected devices, even these which device
bindings author did not tried yet.

Remove the spi-* properties which now come via spi-peripheral-props.yaml
schema, except for the cases when device schema adds some constraints
like maximum frequency.

While changing additionalProperties->unevaluatedProperties, put it in
typical place, just before example DTS.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220816124321.67817-11-krzysztof.kozlowski@linaro.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-19 19:34:16 +01:00
Krzysztof Kozlowski
6920f48efd dt-bindings: iio: samsung,sensorhub-rinato: use spi-peripheral-props.yaml
Instead of listing directly properties typical for SPI peripherals,
reference the spi-peripheral-props.yaml schema.  This allows using all
properties typical for SPI-connected devices, even these which device
bindings author did not tried yet.

Remove the spi-* properties which now come via spi-peripheral-props.yaml
schema, except for the cases when device schema adds some constraints
like maximum frequency.

While changing additionalProperties->unevaluatedProperties, put it in
typical place, just before example DTS.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220816124321.67817-10-krzysztof.kozlowski@linaro.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-19 19:34:16 +01:00
Krzysztof Kozlowski
efcdb1ab50 dt-bindings: iio: potentiometer: use spi-peripheral-props.yaml
Instead of listing directly properties typical for SPI peripherals,
reference the spi-peripheral-props.yaml schema.  This allows using all
properties typical for SPI-connected devices, even these which device
bindings author did not tried yet.

Remove the spi-* properties which now come via spi-peripheral-props.yaml
schema, except for the cases when device schema adds some constraints
like maximum frequency.

While changing additionalProperties->unevaluatedProperties, put it in
typical place, just before example DTS.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220816124321.67817-9-krzysztof.kozlowski@linaro.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-19 19:34:16 +01:00
Krzysztof Kozlowski
8d98a8c6b0 dt-bindings: iio: imu: use spi-peripheral-props.yaml
Instead of listing directly properties typical for SPI peripherals,
reference the spi-peripheral-props.yaml schema.  This allows using all
properties typical for SPI-connected devices, even these which device
bindings author did not tried yet.

Remove the spi-* properties which now come via spi-peripheral-props.yaml
schema, except for the cases when device schema adds some constraints
like maximum frequency.

While changing additionalProperties->unevaluatedProperties, put it in
typical place, just before example DTS.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220816124321.67817-8-krzysztof.kozlowski@linaro.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-19 19:34:16 +01:00
Krzysztof Kozlowski
d9ca9d2806 dt-bindings: iio: health: ti,afe4403: use spi-peripheral-props.yaml
Instead of listing directly properties typical for SPI peripherals,
reference the spi-peripheral-props.yaml schema.  This allows using all
properties typical for SPI-connected devices, even these which device
bindings author did not tried yet.

Remove the spi-* properties which now come via spi-peripheral-props.yaml
schema, except for the cases when device schema adds some constraints
like maximum frequency.

While changing additionalProperties->unevaluatedProperties, put it in
typical place, just before example DTS.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220816124321.67817-7-krzysztof.kozlowski@linaro.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-19 19:34:16 +01:00
Krzysztof Kozlowski
3e03f90fe0 dt-bindings: iio: frequency: adf4371: use spi-peripheral-props.yaml
Instead of listing directly properties typical for SPI peripherals,
reference the spi-peripheral-props.yaml schema.  This allows using all
properties typical for SPI-connected devices, even these which device
bindings author did not tried yet.

Remove the spi-* properties which now come via spi-peripheral-props.yaml
schema, except for the cases when device schema adds some constraints
like maximum frequency.

While changing additionalProperties->unevaluatedProperties, put it in
typical place, just before example DTS.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220816124321.67817-6-krzysztof.kozlowski@linaro.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-19 19:34:16 +01:00
Krzysztof Kozlowski
25d0469946 dt-bindings: iio: dac: use spi-peripheral-props.yaml
Instead of listing directly properties typical for SPI peripherals,
reference the spi-peripheral-props.yaml schema.  This allows using all
properties typical for SPI-connected devices, even these which device
bindings author did not tried yet.

Remove the spi-* properties which now come via spi-peripheral-props.yaml
schema, except for the cases when device schema adds some constraints
like maximum frequency.

While changing additionalProperties->unevaluatedProperties, put it in
typical place, just before example DTS.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220816124321.67817-5-krzysztof.kozlowski@linaro.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-19 19:34:16 +01:00
Krzysztof Kozlowski
1deca207e1 dt-bindings: iio: amplifiers: adi,ada4250: use spi-peripheral-props.yaml
Instead of listing directly properties typical for SPI peripherals,
reference the spi-peripheral-props.yaml schema.  This allows using all
properties typical for SPI-connected devices, even these which device
bindings author did not tried yet.

Remove the spi-* properties which now come via spi-peripheral-props.yaml
schema, except for the cases when device schema adds some constraints
like maximum frequency.

While changing additionalProperties->unevaluatedProperties, put it in
typical place, just before example DTS.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220816124321.67817-4-krzysztof.kozlowski@linaro.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-19 19:34:16 +01:00
Krzysztof Kozlowski
5f72930016 dt-bindings: iio: accel: use spi-peripheral-props.yaml
Instead of listing directly properties typical for SPI peripherals,
reference the spi-peripheral-props.yaml schema.  This allows using all
properties typical for SPI-connected devices, even these which device
bindings author did not tried yet.

Remove the spi-* properties which now come via spi-peripheral-props.yaml
schema, except for the cases when device schema adds some constraints
like maximum frequency.

While changing additionalProperties->unevaluatedProperties, put it in
typical place, just before example DTS.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220816124321.67817-3-krzysztof.kozlowski@linaro.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-19 19:34:16 +01:00
Krzysztof Kozlowski
8013738845 dt-bindings: iio: adc: use spi-peripheral-props.yaml
Instead of listing directly properties typical for SPI peripherals,
reference the spi-peripheral-props.yaml schema.  This allows using all
properties typical for SPI-connected devices, even these which device
bindings author did not tried yet.

Remove the spi-* properties which now come via spi-peripheral-props.yaml
schema, except for the cases when device schema adds some constraints
like maximum frequency.

While changing additionalProperties->unevaluatedProperties, put it in
typical place, just before example DTS.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220816124321.67817-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-19 19:34:16 +01:00
Krzysztof Kozlowski
59d1c811c1 dt-bindings: iio: adc: Drop Patrick Vasseur
Emails to Patrick Vasseur bounce ("Unknown To address").

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220816125401.70317-3-krzysztof.kozlowski@linaro.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-19 18:56:04 +01:00
Krzysztof Kozlowski
6683fdf420 iio: MAINTAINERS: Drop Tomislav Denis
Emails to Tomislav Denis bounce ("550 5.1.1 User Unknown").

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220816125401.70317-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-19 18:56:04 +01:00
Krzysztof Kozlowski
f33abd2d57 dt-bindings: iio: Drop Tomislav Denis
Emails to Tomislav Denis bounce ("550 5.1.1 User Unknown").

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220816125401.70317-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-19 18:56:04 +01:00
Robert Marko
83de806074 iio: adc: qcom-spmi-adc5: add ADC5_VREF_VADC to rev2 ADC5
Add support for ADC5_VREF_VADC channel to rev2 ADC5 channel list.
This channel measures the VADC reference LDO output.

Signed-off-by: Robert Marko <robimarko@gmail.com>
Link: https://lore.kernel.org/r/20220818221815.346233-3-robimarko@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-19 18:27:59 +01:00
Wolfram Sang
a723df3d43 iio: imu: inv_mpu6050: move from strlcpy with unused retval to strscpy
Follow the advice of the below link and prefer 'strscpy' in this
subsystem. Conversion is 1:1 because the return value is not used.
Generated by a coccinelle script.

Link: https://lore.kernel.org/r/CAHk-=wgfRnXz0W3D37d01q3JFkr_i_uTL=V6A6G1oUZcprmknw@mail.gmail.com/
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-19 18:23:48 +01:00
Wolfram Sang
ae2c9cf14c iio: st_sensors: move from strlcpy with unused retval to strscpy
Follow the advice of the below link and prefer 'strscpy' in this
subsystem. Conversion is 1:1 because the return value is not used.
Generated by a coccinelle script.

Link: https://lore.kernel.org/r/CAHk-=wgfRnXz0W3D37d01q3JFkr_i_uTL=V6A6G1oUZcprmknw@mail.gmail.com/
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20220818210017.6817-1-wsa+renesas@sang-engineering.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-19 18:23:14 +01:00
Antoniu Miclaus
30475ef283 iio: frequency: admv1014: return -EINVAL directly
Remove extra step where the error code is assigned to the `ret`
variable.

Return instead error code directly.

Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Link: https://lore.kernel.org/r/20220819104117.4600-1-antoniu.miclaus@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-19 18:07:22 +01:00
Andy Shevchenko
b82217e73b iio: pressure: dlhl60d: Don't take garbage into consideration when reading data
Both pressure and temperature are 24-bit long. Use proper accessors
instead of overlapping readings.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220726142048.4494-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-15 22:30:04 +01:00
Jakob Hauser
65f79b5010 iio: magnetometer: yas530: Add YAS537 variant
Add support for the magnetometer Yamaha YAS537. The additions are based on
comparison of Yamaha Android kernel drivers for YAS532 [1] and YAS537 [2].

In the Yamaha YAS537 Android driver, there is an overflow/underflow control
implemented. For regular usage, this seems not necessary. A similar overflow/
underflow control of Yamaha YAS530/532 Android driver isn't integrated in the
mainline driver. It is therefore skipped for YAS537 in the mainline too.

Also in the Yamaha YAS537 Android driver, at the end of the reset_yas537()
function, a measurement is saved in "last_after_rcoil". Later on, this is
compared to current measurements. If the difference gets too big, a new
reset is initialized. The difference in measurements needs to be quite big,
it's hard to say if this is necessary for regular operation. Therefore this
isn't integrated in the mainline driver either.

[1] https://github.com/msm8916-mainline/android_kernel_qcom_msm8916/blob/GT-I9195I/drivers/iio/magnetometer/yas_mag_drv-yas532.c
[2] https://github.com/msm8916-mainline/android_kernel_qcom_msm8916/blob/GT-I9195I/drivers/iio/magnetometer/yas_mag_drv-yas537.c

Signed-off-by: Jakob Hauser <jahau@rocketmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/264c6488733a5c32089c9ab406a5bcb808c48fef.1660337264.git.jahau@rocketmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-15 22:30:04 +01:00
Jakob Hauser
059ff0f9a1 iio: magnetometer: yas530: Add function pointers to "chip_info"
Add function pointers to the "chip_info" structure to ease the handling of
different YAS variants.

In the function yas5xx_probe(), the function call for "measure_offsets" was
added as a conditional "if (ci->measure_offsets)". This is a preparatory step
for YAS537, as this variant doesn't need an offset measurement.

Signed-off-by: Jakob Hauser <jahau@rocketmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/4bd3f96262e0132b7f9720521a801da3c18abd95.1660337264.git.jahau@rocketmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-15 22:30:04 +01:00
Jakob Hauser
2d6676ecbe iio: magnetometer: yas530: Add temperature calculation to "chip_info"
Add temperature calculation to the "chip_info" structure to ease the handling
of different YAS variants.

Signed-off-by: Jakob Hauser <jahau@rocketmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/1a8bffdb7e807455620a73f2d61981e7f9aab8d5.1660337264.git.jahau@rocketmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-15 22:30:04 +01:00
Jakob Hauser
913fd40966 iio: magnetometer: yas530: Add IIO scaling to "chip_info"
Add IIO scaling to the "chip_info" structure to ease the handling to
different YAS variants.

Signed-off-by: Jakob Hauser <jahau@rocketmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/a12f892633bbee13a8856c231dc793ebbc5d3a03.1660337264.git.jahau@rocketmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-15 22:30:03 +01:00
Jakob Hauser
dd9bd44f87 iio: magnetometer: yas530: Add volatile registers to "chip_info"
Add volatile registers to the "chip_info" structure to ease the handling of
different YAS variants.

Signed-off-by: Jakob Hauser <jahau@rocketmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/aeba3877933ba9d2c920b459a9037d9186c15a4f.1660337264.git.jahau@rocketmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-15 22:30:03 +01:00
Jakob Hauser
a70f60e5b6 iio: magnetometer: yas530: Introduce "chip_info" structure
Introduce the "chip_info" structure approach for better variant handling.

The variant to be used is now chosen by the Device Tree (enum "chip_ids"),
not by the chip ID in the register. However, there is a check to make sure
they match (using integer "id_check").

Signed-off-by: Jakob Hauser <jahau@rocketmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/57236545107286771d351b95091bf56815d3717d.1660337264.git.jahau@rocketmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-15 22:30:03 +01:00
Jakob Hauser
92d9c05ca7 iio: magnetometer: yas530: Apply documentation and style fixes
This commit gathers several minor changes.

In the device examples, "Xiaomi" is too generic, specific devices should be
listed here. E.g. Xiaomi Redmi 2 seems to have YAS537 but it's not fully clear
if this applies to all its variants. Samsung Galaxy S7 is often quoted in
conjunction with YAS537.

Removed defines for device IDs of YAS537 and YAS539, they are not needed so far.

Signed-off-by: Jakob Hauser <jahau@rocketmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/300e394a76eb30fa031ecb69b594e9f9a70dac42.1660337264.git.jahau@rocketmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-15 22:30:03 +01:00
Jakob Hauser
bdef8dcfbb iio: magnetometer: yas530: Move printk %*ph parameters out from stack
Use less stack by modifying %*ph parameters.

While at it, in the function yas530_get_calibration_data(), the debug dump was
extended to 16 elements as this is the size of the calibration data array of
YAS530.

Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Jakob Hauser <jahau@rocketmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/93b50c20adb1b2acb4cddb1ab25755070edd7c07.1660337264.git.jahau@rocketmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-15 22:30:03 +01:00
Jakob Hauser
6e3bfa97c5 iio: magnetometer: yas530: Rename functions and registers
This is a preparation for adding the YAS537 variant.

Functions that are used only by YAS530, YAS532 and YAS533 are renamed from
yas5xx to yas530. Same for the registers.

To avoid part listing in function and registers names, the name of the first
variant is used. Where appropriate, comments were added that these functions
are used by more than one variant.

Functions that will be used by all variants including YAS537 remain in the
naming scheme yas5xx. Or YAS5XX for registers, respectively.

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/344d3b2f5e050eab79ce9962c24781486774d9fb.1660337264.git.jahau@rocketmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-15 22:30:03 +01:00
Jakob Hauser
0ca09faade iio: magnetometer: yas530: Change data type of calibration coefficients
This is a preparation for adding YAS537 variant.

YAS537 uses other data types on the calibration coefficients [1] than YAS530 [2]
and YAS532 [3].

On YAS537, at least for a4 and a7 this could matter because 8-bit unsigned data
from the register gets stored into a signed data type, therefore this should be
8-bit as well.

For YAS530/532, on the other hand, it doesn't seem to matter. The size of a2-a9
and k is smaller than 8-bit at extraction, also the applied math is low. And
Cx/Cy1/Cy2, now being defined as signed 16-bit, are extracted as unsigned 8-bit
and undergo only minor math.

[1] https://github.com/msm8916-mainline/android_kernel_qcom_msm8916/blob/GT-I9195I/drivers/iio/magnetometer/yas_mag_drv-yas537.c#L76-L78
[2] https://github.com/NovaFusion/android_kernel_samsung_golden/blob/cm-12.1/drivers/sensor/compass/yas_mag_driver-yas530.c#L526-L527
[3] https://github.com/msm8916-mainline/android_kernel_qcom_msm8916/blob/GT-I9195I/drivers/iio/magnetometer/yas_mag_drv-yas532.c#L76-L77

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/f1e53bd6672aebe59f9b236b41374482edf888f8.1660337264.git.jahau@rocketmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-15 22:30:03 +01:00
Jakob Hauser
8239f904f9 iio: magnetometer: yas530: Correct temperature handling
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>
2022-08-15 22:30:03 +01:00
Jakob Hauser
413cf69163 iio: magnetometer: yas530: Correct scaling of magnetic axes
Looks like YAS530 raw values return picotesla and YAS532 nanotesla. Adapt
comments and scaling.

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/053ab05cb9a0f6b0536ab5e0de57009f513c6f81.1660337264.git.jahau@rocketmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-15 22:30:03 +01:00