- 05 Sep, 2022 2 commits
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Vincent Whitchurch authored
If an IIO driver uses callbacks from another IIO driver and calls iio_channel_start_all_cb() from one of its buffer setup ops, then lockdep complains due to the lock nesting, as in the below example with lmp91000. Since the locks are being taken on different IIO devices, there is no actual deadlock. Fix the warning by telling lockdep to use a different class for each iio_device. ============================================ WARNING: possible recursive locking detected -------------------------------------------- python3/23 is trying to acquire lock: (&indio_dev->mlock){+.+.}-{3:3}, at: iio_update_buffers but task is already holding lock: (&indio_dev->mlock){+.+.}-{3:3}, at: enable_store other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&indio_dev->mlock); lock(&indio_dev->mlock); *** DEADLOCK *** May be due to missing lock nesting notation 5 locks held by python3/23: #0: (sb_writers#5){.+.+}-{0:0}, at: ksys_write #1: (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter #2: (kn->active#14){.+.+}-{0:0}, at: kernfs_fop_write_iter #3: (&indio_dev->mlock){+.+.}-{3:3}, at: enable_store #4: (&iio_dev_opaque->info_exist_lock){+.+.}-{3:3}, at: iio_update_buffers Call Trace: __mutex_lock iio_update_buffers iio_channel_start_all_cb lmp91000_buffer_postenable __iio_update_buffers enable_store Fixes: 67e17300 ("iio: potentiostat: add LMP91000 support") Signed-off-by:Vincent Whitchurch <vincent.whitchurch@axis.com> Reviewed-by:
Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20220829091840.2791846-1-vincent.whitchurch@axis.comSigned-off-by:
Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Ramona Bolboaca authored
Adding support for max11205 16-bit single-channel ultra-low power delta-sigma adc. The MAX11205 is compatible with the 2-wire interface and uses SCLK and RDY/DOUT for serial communications. In this mode, all controls are implemented by timing the high or low phase of the SCLK. The 2-wire serial interface only allows for data to be read out through the RDY/DOUT output. Datasheet: https://datasheets.maximintegrated.com/en/ds/MAX11205.pdfSigned-off-by:
Ramona Bolboaca <ramona.bolboaca@analog.com> Reviewed-by:
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- 04 Sep, 2022 7 commits
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Ramona Bolboaca authored
Add bindings documentation file and MAINTAINERS entry for MAX11205. Signed-off-by:
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20220831133021.215625-1-ramona.bolboaca@analog.comSigned-off-by:
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Andy Shevchenko authored
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.comSigned-off-by:
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Andy Shevchenko authored
For better compiler coverage mark strings consts in the chip info. Signed-off-by:
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Andy Shevchenko authored
Unify ID tables to use pointers for driver data. It will allow to simplify the driver later on. Signed-off-by:
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Oleksij Rempel authored
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:
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Oleksij Rempel authored
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:
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Oleksij Rempel authored
Add property for the voltage reference supply. Signed-off-by:
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- 30 Aug, 2022 6 commits
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Shreeya Patel authored
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.comSigned-off-by:
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Rob Herring authored
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:
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Antoniu Miclaus authored
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.comSigned-off-by:
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wangjianli authored
Delete the redundant word 'in'. Signed-off-by:
wangjianli <wangjianli@cdjrlc.com> Link: https://lore.kernel.org/r/20220823140023.2567-1-wangjianli@cdjrlc.comSigned-off-by:
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Dmitry Rokosov authored
Introduce devicetree binding json-schema for MSA311 tri-axial, low-g accelerometer driver. Signed-off-by:
Dmitry Rokosov <ddrokosov@sberdevices.ru> Reviewed-by:
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Dmitry Rokosov authored
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.pdfSigned-off-by:
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- 28 Aug, 2022 5 commits
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Dmitry Rokosov authored
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:
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Andy Shevchenko authored
Add str_read_write() helper to return 'read' or 'write' string literal. Signed-off-by:
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Dmitry Rokosov authored
Remove duplicated definition of UHZ_PER_HZ, because it's available in the units.h as MICROHZ_PER_HZ. Signed-off-by:
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Dmitry Rokosov authored
Remove duplicated definition of NHZ_PER_HZ, because it's available in the units.h as NANOHZ_PER_HZ. Signed-off-by:
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Dmitry Rokosov authored
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:
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- 20 Aug, 2022 3 commits
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Joe Simmons-Talbott authored
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.comSigned-off-by:
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William Breathitt Gray authored
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.orgSigned-off-by:
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Jonathan Cameron authored
____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:
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- 19 Aug, 2022 17 commits
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Krzysztof Kozlowski authored
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:
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Krzysztof Kozlowski authored
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:
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Krzysztof Kozlowski authored
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:
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Krzysztof Kozlowski authored
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:
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Krzysztof Kozlowski authored
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:
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Krzysztof Kozlowski authored
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:
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Krzysztof Kozlowski authored
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:
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Krzysztof Kozlowski authored
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:
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Krzysztof Kozlowski authored
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:
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Krzysztof Kozlowski authored
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:
Marcus Folkesson <marcus.folkesson@gmail.com> Reviewed-by:
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Krzysztof Kozlowski authored
Emails to Patrick Vasseur bounce ("Unknown To address"). Signed-off-by: -
Krzysztof Kozlowski authored
Emails to Tomislav Denis bounce ("550 5.1.1 User Unknown"). Signed-off-by: -
Krzysztof Kozlowski authored
Emails to Tomislav Denis bounce ("550 5.1.1 User Unknown"). Signed-off-by: -
Robert Marko authored
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.comSigned-off-by:
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Wolfram Sang authored
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:
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Wolfram Sang authored
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:
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Antoniu Miclaus authored
Remove extra step where the error code is assigned to the `ret` variable. Return instead error code directly. Signed-off-by:
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