summaryrefslogtreecommitdiff
path: root/drivers/iio/accel/st_accel_i2c.c
AgeCommit message (Collapse)Author
2021-05-17iio: st_sensors: Call st_sensors_power_enable() from bus driversAndy Shevchenko
In case we would initialize two IIO devices from one physical device, we shouldn't have a clash on regulators. That's why move st_sensors_power_enable() call from core to bus drivers. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20210414195454.84183-4-andriy.shevchenko@linux.intel.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-04-23Merge tag 'iio-for-5.8a' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next Jonathan writes: First set of new IIO device support, features and cleanup for the 5.8 cycle Usual mix of new drivers, new support in old drivers and lots of minor cleanup. Yaml conversions also continue to trickle in (plenty more to go!) New device support * ad7476 - Add ad7091 support (ID only) * ad9467 - New driver for this 200/250 MSPS adi-axi-adc and SPI attached ADC. * adi-axi-adc - New driver to support ADIs generic AXI ADC IP core, used to provide high speed interfaces to ADCs (JESD204B/C or parallel interfaces). Usually paired with a device using a slow configuration interface (spi etc) Includes DT bindings and some fixes for fpga headers. * bmg160 - Add support for BMI088 (ID only) * max1241 - New driver for this ADC. * st_sensors - Add support for LIS2HH12 accelerometer * sx9310 - New driver supporting sx9310 and sx9311 proximity sensors. Yaml DT binding conversions * rockchip-saradc (including adding some missing parts) * stm32-dac * tsl2563 * vcnl4000 Features * st_lsm6dsx - Add LIS3MDL as a possible sensor hub device. * vcnl4000 - Add new concept of near level (from DT) to provide to userspace which often needs to have some calibrated concept of 'near'. Cleanups, minor fixes etc. * core - Use snprintf for functions where strings are built and there is potential for overflow. - Correct docs to indicate mlock should not be used directly by drivers. - Fix up accidental dropping of a patch to use bitmap_zalloc. - Stop allowing enabling of buffers with no channels enabled. - Drop unused 'stufftoread' from iio_buffer. - Drop scan_el_attrs form iio_buffer as unused. - Reorder sanity checks in __iio_device_register to fail earlier. - Drop all the devm_ runregister / free functions from IIO as they were never used and encourage poor design. * dma-buffer - Tidy up includes. * dma-engine-buffer - Provide dev-managed allocator. - Fix an issue with printing a size_t * cross subsystem (kxsd9, bmg160, mpu3050, bmi160, mpu6050, bmc150) - Replace some unnecessary casts of error ptrs and whilst there. use the %pe printf parameter to print them in a more useful fashion. * cross subsystem - Drop casts in calls to regmap_bulk_read as they make no sense. - Use devm_platform_ioremap_resource to reduce boilerplate. - Fix typos in Analog Devices. * counters/104-quad - Add Syed Nayyar Waris as an additional maintainer. * ad7476 - Generate CONVST signal internally rather than requiring external trigger. Add sysfs read back as can now do so. - use devm_add_action_or_reset to tidy up error and remove handling. * ad7793 - Switch to read_avail from explicit attribute. Mostly done to avoid confusing people with a - sign (without surounding spaces) that was correct but checkpatch didn't like. * adis library - Add missing newlines at end of error messages. * adis16400 - Use DEFINE_DEBUGS_ATTRIBUTE rather than DEFINE_SIMPLE_ATTR. * adis16460 - Use DEFINE_DEBUGS_ATTRIBUTE rather than DEFINE_SIMPLE_ATTR. * ad_sigma_delta - Move some channel definitions into individual drivers to avoid having to deal with complex options. * ak8974 - Silence an error on deffered probe. * bmp280 - Harden against IRQ before registration. - Convert to read_avail instead of opencoding the equivalent. - Explicitly mark GPIO as optional. - Cleanup casts. - Remove line breaks from strings. * htts221 - Replace direct access to platform_data with dev_get_platdata(). - Use device properties rather than device tree ones to allow ACPI probing. - Casting cleanups. * intel_mrfld_adc - Don't use unaligned accessor for aligned data. * isl29125 - Reorder buer pre and post hooks to allow for coming core rework. * ltc2983 - Remove comp to bool. * max1363 - Stop using mlock from the iio_dev directly in favour of a local lock with clearly defined scope. * max30100 - Use generic device properties to allow ACPI probe. * mpu6050 - Convert to i2c_new_client_device. - Add debugfs register access. * st_lsm6dsx - Provide means of configuring full scale on slave device if supported. - Drop include of st_sensors header to get one value. Its not otherwise used by this driver. * st-sensors - Replace direct access to platform_data with dev_get_platdata(). - Casting cleanups. - Avoid splitting strings. * st_uvis25 - Casting cleanups. * tsl2563 - Typo fix. * tsl2772 - scnprintf in a non obvious string building usecase. Note also 'fixes' a wrong calculation of remaining space that couldn't actually cause any trouble as there was lots of room. * xilinx-xadc - Fix Lars-Peter spelling his own name wrong :) + additional typos. * tag 'iio-for-5.8a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (101 commits) iio: magnetometer: ak8974: Silence deferred-probe error Documentation: ABI: document IIO in_proximity_nearlevel file iio: vcnl4000: Export near level property for proximity sensor dt-bindings: iio: light: vcnl4000: Add proximity-near-level dt-bindings: iio: Introduce common properties for iio sensors dt-bindings: iio: vcnl4000: convert bindings to YAML format iio: Fix misspellings of "Analog Devices" iio: light: isl29125: fix iio_triggered_buffer_{predisable,postenable} positions iio: adc: fsl-imx25-gcq: Use devm_platform_ioremap_resource iio: adc: at91-adc: Use devm_platform_ioremap_resource iio: adc: sun4i-gpadc-iio: Use devm_platform_ioremap_resource iio:light:ltr501: Drop unnecessary cast of parameter in regmap_bulk_read iio:magn:mmc35240: Drop unnecessary casts of val parameter in regmap_bulk* iio:imu:mpu6050: Tidy up parameters to regmap_bulk functions. iio:chemical:bme680: Tidy up parameters to regmap_bulk_read iio:chemical:atlas-sensor: Drop unnecessary explicit casts in regmap_bulk_read calls iio:accel:mxc4005: Drop unnecessary explicit casts in regmap_bulk_read calls iio: imu: st_lsm6dsx: drop huge include in sensor-hub driver iio: buffer: drop devm_iio_kfifo_free() API call iio: buffer: drop devm_iio_hw_consumer_free() API call ...
2020-04-19iio: accel: st_sensors: add support for LIS2HH12Gaëtan André
Add support for STMicroelectronics LISHH12 accelerometer in st_accel framework. https://www.st.com/resource/en/datasheet/lis2hh12.pdf Signed-off-by: Gaëtan André <rvlander@gaetanandre.eu> Reviewed-by: Stephan Gerhold <stephan@gerhold.net> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-03-23Merge 5.6-rc7 into staging-nextGreg Kroah-Hartman
We need the staging/iio fixes in here as well Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-08iio: st_sensors: remap SMO8840 to LIS2DH12Wen-chien Jesse Sung
According to ST, the HID is for LIS2DH12. Fixes: 3d56e19815b3 ("iio: accel: st_accel: Add support for the SMO8840 ACPI id") Signed-off-by: Wen-chien Jesse Sung <jesse.sung@canonical.com> Tested-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-02-14iio: accel: st_accel: Use st_sensors_dev_name_probe()Andy Shevchenko
Use st_sensors_dev_name_probe() instead open coded variant. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-01-13iio: st_sensors: Make use of device propertiesAndy Shevchenko
Device property API allows to gather device resources from different sources, such as ACPI. Convert the drivers to unleash the power of device property API. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-12-29iio: accel: st_accel: Drop unnecessary #else branch for ACPIAndy Shevchenko
ACPI_PTR() takes care of the argument in case of !CONFIG_ACPI. Remove unnecessary #else branch. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-07-27iio: make st_sensors drivers use regmapDenis Ciocca
This patch is meant to replace the i2c/spi transfer functions with regmap. SPI framework requires DMA safe buffers so let's add GFP_DMA flag for memory allocation used by bulk_read functions. Signed-off-by: Denis Ciocca <denis.ciocca@st.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-07-27iio:accel: device settings are set immediately during probeDenis Ciocca
This patch set accel settings right after probe start. This is done in preparation of regmap that needs different configuration based on multiread bit value. Signed-off-by: Denis Ciocca <denis.ciocca@st.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-05-30treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 177Thomas Gleixner
Based on 1 normalized pattern(s): licensed under the gpl 2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 135 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Reviewed-by: Steve Winslow <swinslow@gmail.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190528170026.071193225@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-14iio: accel: add support to LIS2DE12Robert Jones
Add support to STMicroelectronics LIS2DE12 accelerometer in st_accel framework. http://www.st.com/resource/en/datasheet/lis2de12.pdf Signed-off-by: Robert Jones <rjones@gateworks.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-16iio: st-accel: add support for lis3deHeiko Stuebner
This commit add support for STMicroelectronics lis3de accelerometer. Datasheet for this device can be found here: https://www.st.com/resource/en/datasheet/lis3de.pdf Signed-off-by: Heiko Stuebner <heiko.stuebner@bq.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-07IIO: st_accel_i2c.c: Use probe_new() instead of probe()Nikolaus Voss
struct i2c_device_id argument of probe() is not used, so use probe_new() instead. Signed-off-by: Nikolaus Voss <nikolaus.voss@loewensteinmedical.de> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-07IIO: st_accel_i2c.c: Simplify access to driver dataNikolaus Voss
Use device_get_match_data API to simplify access to driver data. Let acpi_device_id table entries point to the same driver data as of_device_id table entries and uniquify access to driver data by using device_get_match_data API. Remove unused i2c_device_id .driver_data fields. Signed-off-by: Nikolaus Voss <nikolaus.voss@loewensteinmedical.de> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-04-21iio: accel: st_accel: Add support for the SMO8840 ACPI idHans de Goede
The Lenovo Ideapad Miix 320 uses an st accelerometer with an ACPI id of SMO8840, add support for this. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-01-30iio: accel: use strlcpy() instead of strncpy()Xiongfeng Wang
gcc-8 reports drivers/iio/accel/st_accel_i2c.c: In function 'st_accel_i2c_probe': ./include/linux/string.h:245:9: warning: '__builtin_strncpy' specified bound 20 equals destination size [-Wstringop-truncation] The compiler require that the length of the dest string is greater than the length we want to copy to make sure the dest string is nul-terminated. We can just use strlcpy() to avoid this warning. Signed-off-by: Xiongfeng Wang <xiongfeng.wang@linaro.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-10-09iio: accel: add support to LIS2DW12Lorenzo Bianconi
add support to STMicroelectronics LIS2DW12 accelerometer in st_accel framework http://www.st.com/resource/en/datasheet/lis2dw12.pdf Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-07-09iio: accel: st_accel: rename H3LIS331DL_DRIVER_NAME in H3LIS331DL_ACCEL_DEV_NAMELorenzo Bianconi
In order to use the standard name convention rename H3LIS331DL_DRIVER_NAME macro in H3LIS331DL_ACCEL_DEV_NAME Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-07-09iio: accel: st_accel_i2c: fix i2c_device_id tableLorenzo Bianconi
Add H3LIS331DL, LIS331DL and LIS3LV02DL entries in st_accel_id_table Fixes: 1e52fefc9b0c (iio: accel: Add support for the h3lis331dl accel) Fixes: bbf5f037fad4 (iio: st_accel: support the LIS331DL sensor) Fixes: 3acddf74f807 (iio: st-sensors: add support for lis3lv02d accel) Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-07-01iio: common: st_sensors: move st_sensors_of_i2c_probe() in common codeLorenzo Bianconi
Move st_sensors_of_i2c_probe() in st_sensors_core and rename it in st_sensors_of_name_probe(). That change is necessary to add device-tree support in spi code otherwise the rest of the autodetection will fail since spi->modalias (and indio_dev->name) will be set using compatible string value that differs from standard sensor name Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-01-10iio: accel: st_accel: handle deprecated bindingsLinus Walleij
The earlier deployed LIS3LV02DL driver had already defined a few DT bindings that need to be supported by the new more generic driver and listed as compatible but deprecated bindings in the documentation. After this we can start to activate the new driver with the old systems where applicable. As part of this enablement: make us depend on the old drivers not being in use so we don't get a kernel with two competing drivers. Cc: devicetree@vger.kernel.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-12-03iio: st_accel: Support sensor i2c probe using acpiShrirang Bagul
Add support to probe st_accel sensors on i2c bus using ACPI. Compatible strings are not avaialable on ACPI based systems. Signed-off-by: Shrirang Bagul <shrirang.bagul@canonical.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-11-01iio: accel: st_accel: add support to lng2dmLorenzo Bianconi
add support to STMicroelectronics LNG2DM accelerometer to st_accel framework Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-04iio: accel: st_accel: Add lis3l02dq supportJonathan Cameron
Time to finally kill off the venerable (it was one of my first drivers) lis3l02dq driver in favour of adding support in the st sensors framework. This does loose us the event support that driver always had, but I think that will reappear at some point and in the meantime the maintenance advantages of dropping the 'special' driver for this one part outweigh the issues. It's worth noting this part is ancient and I may well be the only person who still has any on hardware running recent kernels. It has a few 'quirks'. - No WAI register so that just became optional. - A BDU option that really does block updates. Completely. Whatever you do, you don't get any more data with it set. It is documented the same as more modern parts but I presume they are actually clearing for updates after a read of both bytes! - Fixed scale. - It's too quick. Even at slowest rate (280Hz) I can't read out fast enough on my board (stargate 2) to beat new data coming in. Linus' repeat read patch doesn't help in this case. It just means I get 10 readings before dying... So in reality this will get used with software triggers only unless someone has this long out of production device on a quick board. Signed-off-by: Jonathan Cameron <jic23@kernel.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Cc: Denis CIOCCA <denis.ciocca@st.com> Cc: Crestez Dan Leonard <leonard.crestez@intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-03-12iio: accel: Add support for the h3lis331dl accelerometerTiberiu Breana
This commit adds support for STMicroelectronics h3lis331dl high-g accelerometer. The datasheet for this device can be found here: http://www.st.com/web/en/resource/technical/document/ datasheet/DM00053090.pdf Signed-off-by: Tiberiu Breana <tiberiu.a.breana@intel.com> Reviewed-by: Denis Ciocca <denis.ciocca@st.com> Acked-by: Denis Ciocca <denis.ciocca@st.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-11-14iio: st-accel: add support for lis2dh12Giuseppe Barba
This commit add support for STMicroelectronics lis2dh12 accelerometer. Datasheet for this device can be found here: http://www.st.com/st-web-ui/static/active/en/resource/technical/ document/datasheet/DM00091513.pdf Signed-off-by: Giuseppe Barba <giuseppe.barba@st.com> Acked-by: Denis Ciocca <denis.ciocca@st.com> Acked-by: Daniel Baluta <daniel.baluta@intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-07-23iio: st-accel: add support for lsm303agr accelerometerGiuseppe Barba
This adds support for the lsm303agr accelerometer. Signed-off-by: Giuseppe Barba <giuseppe.barba@st.com> Acked-by: Denis Ciocca <denis.ciocca@st.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-07-11iio: Drop owner assignment from i2c_driverKrzysztof Kozlowski
i2c_driver does not need to set an owner because i2c_register_driver() will set it. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-06-08iio: st_accel: support the LIS331DL sensorLinus Walleij
This adds support for the LIS331DL sensor version. This is a simple 8bit-only accelerometer. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Denis Ciocca <denis.ciocca@st.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-03-28iio: st-sensors: add support for lis3lv02d accelerometerLinus Walleij
This adds support for the LIS3LV02 accelerometer found in the ST Microelectronics Nomadik board series. Cc: devicetree@vger.kernel.org Cc: Denis CIOCCA <denis.ciocca@st.com> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-10-04iio:common: Set the device pointer into ST common sensors libraryDenis CIOCCA
Signed-off-by: Denis Ciocca <denis.ciocca@st.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-10-04iio:accel: Removed unnecessary parameter on common_probe functionDenis CIOCCA
Signed-off-by: Denis Ciocca <denis.ciocca@st.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-07-11iio: st_sensors: add devicetree probing supportLinus Walleij
The I2C devices that make up the STMicroelectronics MEMS sensors may be sneakily enabled by cleverly giving the device node the same name as a string match from the platform device ID table. However the right method is to use the compatible string. On detection, the ST sensors use the ID string to probe and instatiate the right sensor driver, so pass the kernel-internal ID string in the .data field of the OF match table, and set the I2C client name to this name when a compatible match is used. This avoids having misc Linux-specific strings floating around in the device tree. Cc: Lee Jones <lee.jones@linaro.org> Cc: Denis CIOCCA <denis.ciocca@st.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-08-03iio: accel: st_accel: Use devm_iio_device_allocSachin Kamat
Using devm_iio_device_alloc makes code simpler. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Cc: Denis Ciocca <denis.ciocca@st.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-08-03iio: Added ST-sensors platform data to select the DRDY interrupt pinDenis CIOCCA
This patch add support to redirect the DRDY interrupt on INT1 or INT2 on accelerometer and pressure sensors. Signed-off-by: Denis Ciocca <denis.ciocca@st.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-02-09iio:st_sensors fix build when !CONFIG_IIO_TRIGGERJonathan Cameron
Partly a case of removing unused headers and partly a case of ifdefing out the iio_trigger_ops structures. This has come about because of an 'unusual' separation of code in this driver. Signed-off-by: Jonathan Cameron <jic23@kernel.org> Reported-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Denis Ciocca <denis.ciocca@st.com>
2013-01-31iio:accel: Add STMicroelectronics accelerometers driverDenis Ciocca
This patch adds a generic accelerometer driver for STMicroelectronics accelerometers, currently it supports: LSM303DLH, LSM303DLHC, LIS3DH, LSM330D, LSM330DL, LSM330DLC, LIS331DLH, LSM303DL, LSM303DLM, LSM330. Signed-off-by: Denis Ciocca <denis.ciocca@st.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>