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path: root/drivers/iio/pressure/st_pressure_spi.c
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2022-09-21iio: pressure: st_pressure: Add support for LPS22DFMartyn Welch1-0/+5
Add support for ST LPS22DF pressure sensor. Datasheet: https://www.st.com/resource/en/datasheet/lps22df.pdf Signed-off-by: Martyn Welch <martyn.welch@collabora.co.uk> Link: https://lore.kernel.org/r/20220909161611.780720-2-martyn.welch@collabora.co.uk Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-02-18iio:st-sensors: Move exports into IIO_ST_SENSORS namespaceJonathan Cameron1-0/+1
To avoid unnecessary pollution of the global symbol namespace move the driver core and type specific core exports into their a new namespace and import that where needed. For more info see https://lwn.net/Articles/760045/ Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Cc: Andy Shevchenko <andy.shevchenko@gmail.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Denis Ciocca <denis.ciocca@st.com> Link: https://lore.kernel.org/r/20220116180535.2367780-14-jic23@kernel.org
2021-10-24Merge tag 'iio-fixes-for-5.16a' of ↵Greg Kroah-Hartman1-0/+4
https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into char-misc-next Jonathan writes: First set of IIO fixes for the 5.16 cycle As these are very late in the 5.15 cycle and non are particularly urgent, they can wait for the merge window. Key element in this set is Yang Yingliang has identified a number of issues in error paths introduced recently when we added multiple buffer support. Other fixes: * adi,ad5662 - Fix handling of i2c_master_send() return value. * adi,ad5766 - Fix a wrong dt-property name that indicated wrong units and did not mach the bindings. - Associated 'fix' of the bindings example to have a possible scale. * st,pressure-spi - Add some missing entries to the spi_device_id table to ensure auto-loading works. * ti,tsc2046 - Fix a backwards comparison leading to a false dev_warn * tag 'iio-fixes-for-5.16a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: iio: buffer: Fix memory leak in iio_buffers_alloc_sysfs_and_mask() iio: adc: tsc2046: fix scan interval warning iio: core: fix double free in iio_device_unregister_sysfs() iio: core: check return value when calling dev_set_name() iio: buffer: Fix memory leak in iio_buffer_register_legacy_sysfs_groups() iio: buffer: Fix double-free in iio_buffers_alloc_sysfs_and_mask() iio: buffer: Fix memory leak in __iio_buffer_alloc_sysfs_and_mask() iio: buffer: check return value of kstrdup_const() iio: dac: ad5446: Fix ad5622_write() return value Documentation:devicetree:bindings:iio:dac: Fix val drivers: iio: dac: ad5766: Fix dt property name iio: st_pressure_spi: Add missing entries SPI to device ID table
2021-10-07iio: st_pressure_spi: Add missing entries SPI to device ID tableMark Brown1-0/+4
Currently autoloading for SPI devices does not use the DT ID table, it uses SPI modalises. Supporting OF modalises is going to be difficult if not impractical, an attempt was made but has been reverted, so ensure that module autoloading works for this driver by adding SPI IDs for parts that only have a compatible listed. Fixes: 96c8395e2166 ("spi: Revert modalias changes") Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20210927134153.12739-1-broonie@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-09-14iio: st_sensors: remove all driver remove functionsAlexandru Ardelean1-10/+0
At this point all ST driver remove functions do iio_device_unregister(). This change removes them from them and replaces all iio_device_register() with devm_iio_device_register(). This can be done in a single change relatively easy, since all these remove functions are define in st_sensors.h. Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Alexandru Ardelean <aardelean@deviqon.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20210823112204.243255-5-aardelean@deviqon.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-09-14iio: st_sensors: remove st_sensors_power_disable() functionAlexandru Ardelean1-12/+1
This change converts the st_sensors_power_enable() function to use devm_add_action_or_reset() handlers to register regulator_disable hooks for when the drivers get unloaded. The parent device of the IIO device object is used. This is based on the assumption that all other devm_ calls in the ST sensors use this reference. This makes the st_sensors_power_disable() un-needed. Removing this also changes unload order a bit, as all ST drivers would call st_sensors_power_disable() first and iio_device_unregister() after that. Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Alexandru Ardelean <aardelean@deviqon.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20210823112204.243255-4-aardelean@deviqon.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-09-14iio: st_sensors: disable regulators after device unregistrationAlexandru Ardelean1-2/+2
Up until commit ea7e586bdd331 ("iio: st_sensors: move regulator retrieveal to core") only the ST pressure driver seems to have had any regulator disable. After that commit, the regulator handling was moved into the common st_sensors logic. In all instances of this regulator handling, the regulators were disabled before unregistering the IIO device. This can cause issues where the device would be powered down and still be available to userspace, allowing it to send invalid/garbage data. This change moves the st_sensors_power_disable() after the common probe functions. These common probe functions also handle unregistering the IIO device. Fixes: 774487611c949 ("iio: pressure-core: st: Provide support for the Vdd power supply") Fixes: ea7e586bdd331 ("iio: st_sensors: move regulator retrieveal to core") Cc: Lee Jones <lee.jones@linaro.org> Cc: Denis CIOCCA <denis.ciocca@st.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Alexandru Ardelean <aardelean@deviqon.com> Link: https://lore.kernel.org/r/20210823112204.243255-2-aardelean@deviqon.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-07-24iio: st-sensors: Remove some unused includes and add some that should be thereJonathan Cameron1-1/+1
The st-sensors drivers have changed in structure over time, and includes have not always kept up with this. Let's bring them back to nearer the ideal. Identified with the include-what-you-use tool and careful checking of its suggestions. Note I haven't been particularly aggressive here, so this is just the cases where the include obviously isn't needed rather than the more subtle corners. Note I took the opportunity to add mod_devicetable.h as I generally prefer to see that when acpi or of match tables are present. Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Denis Ciocca <denis.ciocca@st.com> Cc: Hans de Goede <hdegoede@redhat.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20210608175149.4019289-1-jic23@kernel.org
2021-05-17iio: st_sensors: Call st_sensors_power_enable() from bus driversAndy Shevchenko1-2/+15
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>
2020-01-14iio: st_sensors: Make use of device propertiesAndy Shevchenko1-5/+1
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>
2020-01-14iio: st_sensors: Drop redundant parameter from st_sensors_of_name_probe()Andy Shevchenko1-2/+1
Since we have access to the struct device_driver and thus to the ID table, there is no need to supply special parameters to st_sensors_of_name_probe(). Besides that we have a common API to get driver match data, there is no need to do matching separately for OF and ACPI. Taking into consideration above, simplify the ST sensors code. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-07-28iio: move 3-wire spi initialization to st_sensors_spiDenis Ciocca1-1/+3
Some devices need to be configured with special bit in order to use spi 3-wire. This was done during device identification phase. Instead, let's move this part as spi specific. Doing this the check_device_support function becomes a simple device id check, so let's rename it. Signed-off-by: Denis Ciocca <denis.ciocca@st.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-07-28iio:pressure: device settings are set immediately during probeDenis Ciocca1-4/+14
This patch set pressure 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 Gleixner1-2/+1
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>
2019-01-19iio:st_pressure:initial lps22hh sensor supportmario tesi1-0/+5
Initial support for ST LPS22HH pressure sensor. Datasheet: http://www2.st.com/resource/en/datasheet/lps22hh.pdf Features: * pressure, temperature data and timestamping channels * sampling frequency selection [1..200] Hz * interrupt based trigger * over I2C or SPI interface Signed-off-by: mario tesi <mario.tesi@st.com> Acked-by: Denis Ciocca <denis.ciocca@st.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-09-03iio: pressure: add support to LPS33HW and LPS35HWLorenzo Bianconi1-0/+10
add support to STMicroelectronics LPS33HW and LPS35HW pressure sensors to st_pressure framework http://www.st.com/resource/en/datasheet/lps33hw.pdf http://www.st.com/resource/en/datasheet/lps35hw.pdf Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-07-02iio: pressure: st_pressure_spi: add OF capability to st_pressure_spiLorenzo Bianconi1-0/+33
Add device tree support for LPS22HB, LPS25H, LPS331AP, LPS001WP pressure sensors Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-05-29iio:st_pressure:initial lps22hb sensor supportGregor Boirie1-0/+1
Initial support for ST LPS22HB pressure sensor. Datasheet: http://www2.st.com/resource/en/datasheet/lps22hb.pdf Features: * pressure data and timestamping channels * sampling frequency selection * interrupt based trigger * over I2C or SPI Signed-off-by: Gregor Boirie <gregor.boirie@parrot.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-10-28spi: Drop owner assignment from spi_driversAndrew F. Davis1-1/+0
An spi_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Andrew F. Davis <afd@ti.com> Acked-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-04iio:common: Set the device pointer into ST common sensors libraryDenis CIOCCA1-1/+0
Signed-off-by: Denis Ciocca <denis.ciocca@st.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-10-04iio:pressure: Changed pressure data variable name to press_dataDenis CIOCCA1-5/+5
This patch fix pressure data variable name. Usually pdata name it is used for platform data. Signed-off-by: Denis Ciocca <denis.ciocca@st.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-10-04iio:pressure: Removed unnecessary parameter on common_probe functionDenis CIOCCA1-1/+1
Signed-off-by: Denis Ciocca <denis.ciocca@st.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-02-22iio:pressure: Add support for LPS25H pressure sensorDenis CIOCCA1-0/+1
This patch adds support for the new barometer sensor: LPS25H. Signed-off-by: Denis Ciocca <denis.ciocca@st.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-23iio:pressure: Adds LPS001WP support also on spi interface and Kconfig fixDenis CIOCCA1-0/+1
Signed-off-by: Denis Ciocca <denis.ciocca@st.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-08-04iio: pressure: st_pressure: Use devm_iio_device_allocSachin Kamat1-11/+4
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 CIOCCA1-1/+1
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>
2013-06-05iio:pressure: Add STMicroelectronics pressures driverDenis CIOCCA1-0/+76
This patch adds a generic pressure driver for STMicroelectronics pressure sensors, currently it supports: LPS331AP. Signed-off-by: Denis Ciocca <denis.ciocca@st.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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