Commit graph

843 commits

Author SHA1 Message Date
Matti Vaittinen
a10a0f385a iio: bmc150-accel-core: Fix unsafe buffer attributes
The iio_triggered_buffer_setup_ext() was changed by
commit 15097c7a1a ("iio: buffer: wrap all buffer attributes into iio_dev_attr")
to silently expect that all attributes given in buffer_attrs array are
device-attributes. This expectation was not forced by the API - and some
drivers did register attributes created by IIO_CONST_ATTR().

The added attribute "wrapping" does not copy the pointer to stored
string constant and when the sysfs file is read the kernel will access
to invalid location.

Change the IIO_CONST_ATTRs from the driver to IIO_DEVICE_ATTR in order
to prevent the invalid memory access.

Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com>
Fixes: 15097c7a1a ("iio: buffer: wrap all buffer attributes into iio_dev_attr")
Link: https://lore.kernel.org/r/cf8a56658fc38db8bed64f456d898f5ad5a2814f.1664782676.git.mazziesaccount@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-10-17 08:51:26 +01:00
Matti Vaittinen
5e23b33d1e iio: adxl367: Fix unsafe buffer attributes
The devm_iio_kfifo_buffer_setup_ext() was changed by
commit 15097c7a1a ("iio: buffer: wrap all buffer attributes into iio_dev_attr")
to silently expect that all attributes given in buffer_attrs array are
device-attributes. This expectation was not forced by the API - and some
drivers did register attributes created by IIO_CONST_ATTR().

The added attribute "wrapping" does not copy the pointer to stored
string constant and when the sysfs file is read the kernel will access
to invalid location.

Change the IIO_CONST_ATTRs from the driver to IIO_DEVICE_ATTR in order
to prevent the invalid memory access.

Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com>
Fixes: 15097c7a1a ("iio: buffer: wrap all buffer attributes into iio_dev_attr")
Cc: <Stable@vger.kernel.org>
Link: https://lore.kernel.org/r/2e2d9ec34fb1df8ab8e2749199822db8cc91d302.1664782676.git.mazziesaccount@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-10-17 08:51:26 +01:00
Matti Vaittinen
ab0ee36e90 iio: adxl372: Fix unsafe buffer attributes
The iio_triggered_buffer_setup_ext() was changed by
commit 15097c7a1a ("iio: buffer: wrap all buffer attributes into iio_dev_attr")
to silently expect that all attributes given in buffer_attrs array are
device-attributes. This expectation was not forced by the API - and some
drivers did register attributes created by IIO_CONST_ATTR().

The added attribute "wrapping" does not copy the pointer to stored
string constant and when the sysfs file is read the kernel will access
to invalid location.

Change the IIO_CONST_ATTRs from the driver to IIO_DEVICE_ATTR in order
to prevent the invalid memory access.

Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com>
Fixes: 15097c7a1a ("iio: buffer: wrap all buffer attributes into iio_dev_attr")
Cc: <Stable@vger.kernel.org>
Link: https://lore.kernel.org/r/19158499623cdf7f9c5efae1f13c9f1a918ff75f.1664782676.git.mazziesaccount@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-10-17 08:51:26 +01:00
Linus Torvalds
a09476668e Char/Misc and other driver changes for 6.1-rc1
Here is the large set of char/misc and other small driver subsystem
 changes for 6.1-rc1.  Loads of different things in here:
   - IIO driver updates, additions, and changes.  Probably the largest
     part of the diffstat
   - habanalabs driver update with support for new hardware and features,
     the second largest part of the diff.
   - fpga subsystem driver updates and additions
   - mhi subsystem updates
   - Coresight driver updates
   - gnss subsystem updates
   - extcon driver updates
   - icc subsystem updates
   - fsi subsystem updates
   - nvmem subsystem and driver updates
   - misc driver updates
   - speakup driver additions for new features
   - lots of tiny driver updates and cleanups
 
 All of these have been in the linux-next tree for a while with no
 reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc and other driver updates from Greg KH:
 "Here is the large set of char/misc and other small driver subsystem
  changes for 6.1-rc1. Loads of different things in here:

   - IIO driver updates, additions, and changes. Probably the largest
     part of the diffstat

   - habanalabs driver update with support for new hardware and
     features, the second largest part of the diff.

   - fpga subsystem driver updates and additions

   - mhi subsystem updates

   - Coresight driver updates

   - gnss subsystem updates

   - extcon driver updates

   - icc subsystem updates

   - fsi subsystem updates

   - nvmem subsystem and driver updates

   - misc driver updates

   - speakup driver additions for new features

   - lots of tiny driver updates and cleanups

  All of these have been in the linux-next tree for a while with no
  reported issues"

* tag 'char-misc-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (411 commits)
  w1: Split memcpy() of struct cn_msg flexible array
  spmi: pmic-arb: increase SPMI transaction timeout delay
  spmi: pmic-arb: block access for invalid PMIC arbiter v5 SPMI writes
  spmi: pmic-arb: correct duplicate APID to PPID mapping logic
  spmi: pmic-arb: add support to dispatch interrupt based on IRQ status
  spmi: pmic-arb: check apid against limits before calling irq handler
  spmi: pmic-arb: do not ack and clear peripheral interrupts in cleanup_irq
  spmi: pmic-arb: handle spurious interrupt
  spmi: pmic-arb: add a print in cleanup_irq
  drivers: spmi: Directly use ida_alloc()/free()
  MAINTAINERS: add TI ECAP driver info
  counter: ti-ecap-capture: capture driver support for ECAP
  Documentation: ABI: sysfs-bus-counter: add frequency & num_overflows items
  dt-bindings: counter: add ti,am62-ecap-capture.yaml
  counter: Introduce the COUNTER_COMP_ARRAY component type
  counter: Consolidate Counter extension sysfs attribute creation
  counter: Introduce the Count capture component
  counter: 104-quad-8: Add Signal polarity component
  counter: Introduce the Signal polarity component
  counter: interrupt-cnt: Implement watch_validate callback
  ...
2022-10-08 08:56:37 -07:00
Jonathan Cameron
6ee2a7058f iio: accel: bma400: Fix smatch warning based on use of unintialized value.
Only specific bits in this value are ever used and those are initialized,
but that is complex to reason about in a checker. Hence, initialize
the value to zero and avoid the complexity.

Smatch warning:
drivers/iio/accel/bma400_core.c:1287 bma400_tap_event_en()
error: uninitialized symbol 'field_value'.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Jagath Jog J <jagathjog1996@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Jagath Jog J <jagathjog1996@gmail.com>
Fixes: 961db2da15 ("iio: accel: bma400: Add support for single and double tap events")
Link: https://lore.kernel.org/r/20220917131401.2815486-1-jic23@kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21 18:42:57 +01:00
Jonathan Cameron
66991b106a iio: accel: bmi088: Use EXPORT_NS_GPL_RUNTIME_DEV_PM_OPS() and pm_ptr()
These macros allow the compiler to remove unused pm ops functions without
needing to mark them maybe unused.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: LI Qingwu <Qing-wu.Li@leica-geosystems.com.cn>
Cc: Mike Looijmans <mike.looijmans@topic.nl>
Link: https://lore.kernel.org/r/20220807185618.1038812-6-jic23@kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21 18:42:57 +01:00
George Mois
a7a1c60bc4 drivers: iio: accel: adxl312 and adxl314 support
ADXL312 and ADXL314 are small, thin, low power, 3-axis accelerometers
with high resolution (13-bit) measurement up to +/-12 g and +/- 200 g
respectively.

Implement support for ADXL312 and ADXL314 by extending the ADXL313
driver.

Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/ADXL312.pdf
Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/ADXL314.pdf
Signed-off-by: George Mois <george.mois@analog.com>
Link: https://lore.kernel.org/r/20220905132018.364900-2-george.mois@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21 18:42:53 +01:00
Jagath Jog J
961db2da15 iio: accel: bma400: Add support for single and double tap events
Add support for single and double tap events based on the tap threshold
value, minimum quiet time before and after the tap and minimum time
between the taps in the double tap. The INT1 pin is used to interrupt
and the event is pushed to userspace.

Signed-off-by: Jagath Jog J <jagathjog1996@gmail.com>
Link: https://lore.kernel.org/r/20220831063117.4141-3-jagathjog1996@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-05 18:08:42 +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
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
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
Uwe Kleine-König
ed5c2f5fd1 i2c: Make remove callback return void
The value returned by an i2c driver's remove function is mostly ignored.
(Only an error message is printed if the value is non-zero that the
error is ignored.)

So change the prototype of the remove function to return no value. This
way driver authors are not tempted to assume that passing an error to
the upper layer is a good idea. All drivers are adapted accordingly.
There is no intended change of behaviour, all callbacks were prepared to
return 0 before.

Reviewed-by: Peter Senna Tschudin <peter.senna@gmail.com>
Reviewed-by: Jeremy Kerr <jk@codeconstruct.com.au>
Reviewed-by: Benjamin Mugnier <benjamin.mugnier@foss.st.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Crt Mori <cmo@melexis.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Marek Behún <kabel@kernel.org> # for leds-turris-omnia
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Petr Machata <petrm@nvidia.com> # for mlxsw
Reviewed-by: Maximilian Luz <luzmaximilian@gmail.com> # for surface3_power
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> # for bmc150-accel-i2c + kxcjk-1013
Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> # for media/* + staging/media/*
Acked-by: Miguel Ojeda <ojeda@kernel.org> # for auxdisplay/ht16k33 + auxdisplay/lcd2s
Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> # for versaclock5
Reviewed-by: Ajay Gupta <ajayg@nvidia.com> # for ucsi_ccg
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> # for iio
Acked-by: Peter Rosin <peda@axentia.se> # for i2c-mux-*, max9860
Acked-by: Adrien Grassein <adrien.grassein@gmail.com> # for lontium-lt8912b
Reviewed-by: Jean Delvare <jdelvare@suse.de> # for hwmon, i2c-core and i2c/muxes
Acked-by: Corey Minyard <cminyard@mvista.com> # for IPMI
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com> # for drivers/power
Acked-by: Krzysztof Hałasa <khalasa@piap.pl>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
2022-08-16 12:46:26 +02:00
LI Qingwu
3cfb0e1d39 iio: accel: sca3300: Extend the trigger buffer from 16 to 32 bytes
After added inclination angle channels, the trigger buffer size is
insufficient. Extend the buffer size from 16 to 32 bytes, and change
the trigger buffer from the struct to a u8 array to adapt the sensor
with/without inclination angles output.
New trigger buffer data:
  - SCA3300: 3 accel channels, temp, and timestamp.
  - SCL3300: 3 accel channels, temp, 3 incli channels, and timestamp.
Readjustment the scan index to make it consistent with the buffer data.

Signed-off-by: LI Qingwu <Qing-wu.Li@leica-geosystems.com.cn>
Link: https://lore.kernel.org/r/20220701023030.2527019-2-Qing-wu.Li@leica-geosystems.com.cn
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-07-19 09:38:53 +01:00
Jonathan Cameron
93a73f6a26 iio: accel: bma220: Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()
Using these newer macros allows the compiler to remove the unused
structure and functions when !CONFIG_PM_SLEEP + removes the need to
mark pm functions __maybe_unused.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20220621202719.13644-2-jic23@kernel.org
2022-07-18 18:48:17 +01:00
Gwendal Grignou
0b4ae3f6d1 iio: cros: Register FIFO callback after sensor is registered
Instead of registering callback to process sensor events right at
initialization time, wait for the sensor to be register in the iio
subsystem.

Events can come at probe time (in case the kernel rebooted abruptly
without switching the sensor off for  instance), and be sent to IIO core
before the sensor is fully registered.

Fixes: aa984f1ba4 ("iio: cros_ec: Register to cros_ec_sensorhub when EC supports FIFO")
Reported-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20220711144716.642617-1-gwendal@chromium.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-07-18 18:29:13 +01:00
Greg Kroah-Hartman
2a3c8f8a44 IIO new device support, features and minor fixes for 5.20
Several on-running cleanup efforts dominate this time, plus the DMA
 safety alignment issue identified due to improved understanding of
 the restrictions as a result of Catalin Marinas' efforts in that area.
 
 One immutable branch in here due to MFD and SPMI elements needed for
 the qcom-rradc driver.
 
 Device support
 * bmi088
   - Add support for bmi085 (accelerometer part of IMU)
   - Add support for bmi090l (accelerometer part of IMU)
 * mcp4922
   - Add support for single channel device MCP4921
 * rzg2l-adc
   - Add compatible and minor tweaks to support RZ/G2UL ADC
 * sca3300
   - Add support for scl3300 including refactoring driver to support
     multiple device types and cleanup noticed whilst working on driver.
 * spmi-rradc
   - New driver for Qualcomm SPMI Round Robin ADC including necessary
     additional utility functions in SPMI core and related MFD driver.
 * ti-dac55781
   - Add compatible for DAC121C081 which is very similar to existing parts.
 
 Features
 * core
   - Warn on iio_trigger_get() on an unregistered IIO trigger.
 * bma400
   - Triggered buffer support
   - Activity and step counting
   - Misc driver improvements such as devm and header ordering
 * cm32181
   - Add PM support.
 * cros_ec
   - Sensor location support
 * sx9324
   - Add precharge resistor setting
   - Add internal compensation resistor setting
   - Add CS idle/sleep mode.
 * sx9360
   - Add precharge resistor setting
 * vl53l0x
   - Handle reset GPIO, regulator and relax handling of irq type.
 
 Cleanup and minor fixes:
 
 Treewide changes
 - Cleanup of error handling in remove functions in many drivers.
 - Update dt-binding maintainers for a number of ADI bindings.
 - Several sets of conversion of drivers from device tree specific to
   generic device properties. Includes fixing up various related
   header and Kconfig issues.
 - Drop include of of.h from iio.h and fix up drivers that need to include
   it directly.
 - More moves of clusters of drivers into appropriate IIO_XXX namespaces.
 - Tree wide fix of a long running bug around DMA safety requirements.
   IIO was using __cacheline_aligned to pad iio_priv() structures. This
   worked for a long time by coincidence, but correct alignment is
   ARCH_KMALLOC_MINALIGN.  As there is activity around this area, introduce
   an IIO local IIO_DMA_MINALIGN to allow for changing it in one place rather
   than every driver in future. Note, there have been no reports of this
   bug in the wild, and it may not happen on any platforms supported by
   upstream, so no rush to backport these fixes.
 
 Other cleanup
 * core
   - Switch to ida_alloc()/free()
   - Drop unused iio_get_time_res()
   - Octal permissions and DEVICE_ATTR_* macros.
   - Cleanup bared unsigned usage.
 * MAINTAINERS
   - Add include/dt-bindings/iio/ to the main IIO entry.
 * ad5380
   - Comment syntax fix.
 * ad74413r
   - Call to for_each_set_bit_from(), with from value as 0 replaced.
 * ad7768-1
   - Drop explicit setting of INDIO_BUFFER_TRIGGERED as now done by the core.
 * adxl345
   - Fix wrong address in dt-binding example.
 * adxl367
   - Drop extra update of FIFO watermark.
 * at91-sama5d2
   - Limit requested watermark to the hwfifo size.
 * bmg160, bme680
   - Typos
 * cio-dac
   - Switch to iomap rather than direct use of ioports
 * kxsd9
   - Replace CONFIG_PM guards with new PM macros that let the compiler
     cleanly remove the unused code and structures when !CONFIG_PM
 * lsm6dsx
   - Use new pm_sleep_ptr() and EXPORT_SIMPLE_DEV_PM_OPS(). Then move
     to Namespace.
 * meson_saradc - general cleanup.
   - Avoid attaching resources to iio_dev->dev
   - Use same struct device for all error messages
   - Convert to dev_err_probe() and use local struct device *dev to
     reduce code complexity.
   - Use devm_clk_get_optional() instead of hand rolling.
   - Use regmap_read_poll_timeout() instead of hand rolling.
 * mma7660
   - Drop ACPI_PTR() use that is unhelpful.
 * mpu3050
   - Stop exporting symbols not used outside of module
   - Switch to new DEFINE_RUNTIME_DEV_PM_OPS() macro and move to Namespace.
 * ping
   - Typo fix
 * qcom-spmi-rradc
   - Typo fix
 * sc27xx
   - Convert to generic struct u32_fract
 * srf08
   - Drop a redundant check on !val
 * st_lsm6dsx
   - Limit the requested watermark to the hwfifo size.
 * stm32-adc
   - Use generic_handle_domain_irq() instead of opencoding.
   - Fix handling of ADC disable.
 * stm32-dac
   - Use str_enabled_disable() instead of open coding.
 * stx104
   - Switch to iomap rather than direct use of ioports
 * tsc2046
   - Drop explicit setting of INDIO_BUFFER_TRIGGERED as now done by the core.
 * tsl2563
   - Replace flush_scheduled_work() with cancel_delayed_work_sync()
   - Replace cancel_delayed_work() with cancel_delayed_work_sync()
 * vl53l0x
   - Make the VDD regulator optional by allowing a dummy regulator.
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Merge tag 'iio-for-5.20a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into char-misc-next

Jonathan writes:

IIO new device support, features and minor fixes for 5.20

Several on-running cleanup efforts dominate this time, plus the DMA
safety alignment issue identified due to improved understanding of
the restrictions as a result of Catalin Marinas' efforts in that area.

One immutable branch in here due to MFD and SPMI elements needed for
the qcom-rradc driver.

Device support
* bmi088
  - Add support for bmi085 (accelerometer part of IMU)
  - Add support for bmi090l (accelerometer part of IMU)
* mcp4922
  - Add support for single channel device MCP4921
* rzg2l-adc
  - Add compatible and minor tweaks to support RZ/G2UL ADC
* sca3300
  - Add support for scl3300 including refactoring driver to support
    multiple device types and cleanup noticed whilst working on driver.
* spmi-rradc
  - New driver for Qualcomm SPMI Round Robin ADC including necessary
    additional utility functions in SPMI core and related MFD driver.
* ti-dac55781
  - Add compatible for DAC121C081 which is very similar to existing parts.

Features
* core
  - Warn on iio_trigger_get() on an unregistered IIO trigger.
* bma400
  - Triggered buffer support
  - Activity and step counting
  - Misc driver improvements such as devm and header ordering
* cm32181
  - Add PM support.
* cros_ec
  - Sensor location support
* sx9324
  - Add precharge resistor setting
  - Add internal compensation resistor setting
  - Add CS idle/sleep mode.
* sx9360
  - Add precharge resistor setting
* vl53l0x
  - Handle reset GPIO, regulator and relax handling of irq type.

Cleanup and minor fixes:

Treewide changes
- Cleanup of error handling in remove functions in many drivers.
- Update dt-binding maintainers for a number of ADI bindings.
- Several sets of conversion of drivers from device tree specific to
  generic device properties. Includes fixing up various related
  header and Kconfig issues.
- Drop include of of.h from iio.h and fix up drivers that need to include
  it directly.
- More moves of clusters of drivers into appropriate IIO_XXX namespaces.
- Tree wide fix of a long running bug around DMA safety requirements.
  IIO was using __cacheline_aligned to pad iio_priv() structures. This
  worked for a long time by coincidence, but correct alignment is
  ARCH_KMALLOC_MINALIGN.  As there is activity around this area, introduce
  an IIO local IIO_DMA_MINALIGN to allow for changing it in one place rather
  than every driver in future. Note, there have been no reports of this
  bug in the wild, and it may not happen on any platforms supported by
  upstream, so no rush to backport these fixes.

Other cleanup
* core
  - Switch to ida_alloc()/free()
  - Drop unused iio_get_time_res()
  - Octal permissions and DEVICE_ATTR_* macros.
  - Cleanup bared unsigned usage.
* MAINTAINERS
  - Add include/dt-bindings/iio/ to the main IIO entry.
* ad5380
  - Comment syntax fix.
* ad74413r
  - Call to for_each_set_bit_from(), with from value as 0 replaced.
* ad7768-1
  - Drop explicit setting of INDIO_BUFFER_TRIGGERED as now done by the core.
* adxl345
  - Fix wrong address in dt-binding example.
* adxl367
  - Drop extra update of FIFO watermark.
* at91-sama5d2
  - Limit requested watermark to the hwfifo size.
* bmg160, bme680
  - Typos
* cio-dac
  - Switch to iomap rather than direct use of ioports
* kxsd9
  - Replace CONFIG_PM guards with new PM macros that let the compiler
    cleanly remove the unused code and structures when !CONFIG_PM
* lsm6dsx
  - Use new pm_sleep_ptr() and EXPORT_SIMPLE_DEV_PM_OPS(). Then move
    to Namespace.
* meson_saradc - general cleanup.
  - Avoid attaching resources to iio_dev->dev
  - Use same struct device for all error messages
  - Convert to dev_err_probe() and use local struct device *dev to
    reduce code complexity.
  - Use devm_clk_get_optional() instead of hand rolling.
  - Use regmap_read_poll_timeout() instead of hand rolling.
* mma7660
  - Drop ACPI_PTR() use that is unhelpful.
* mpu3050
  - Stop exporting symbols not used outside of module
  - Switch to new DEFINE_RUNTIME_DEV_PM_OPS() macro and move to Namespace.
* ping
  - Typo fix
* qcom-spmi-rradc
  - Typo fix
* sc27xx
  - Convert to generic struct u32_fract
* srf08
  - Drop a redundant check on !val
* st_lsm6dsx
  - Limit the requested watermark to the hwfifo size.
* stm32-adc
  - Use generic_handle_domain_irq() instead of opencoding.
  - Fix handling of ADC disable.
* stm32-dac
  - Use str_enabled_disable() instead of open coding.
* stx104
  - Switch to iomap rather than direct use of ioports
* tsc2046
  - Drop explicit setting of INDIO_BUFFER_TRIGGERED as now done by the core.
* tsl2563
  - Replace flush_scheduled_work() with cancel_delayed_work_sync()
  - Replace cancel_delayed_work() with cancel_delayed_work_sync()
* vl53l0x
  - Make the VDD regulator optional by allowing a dummy regulator.

* tag 'iio-for-5.20a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (244 commits)
  iio: adc: xilinx-xadc: Drop duplicate NULL check in xadc_parse_dt()
  iio: adc: xilinx-xadc: Make use of device properties
  iio: light: cm32181: Add PM support
  iio: adc: ad778-1: do not explicity set INDIO_BUFFER_TRIGGERED mode
  iio: adc: ti-tsc2046: do not explicity set INDIO_BUFFER_TRIGGERED mode
  iio: adc: stm32-adc: disable adc before calibration
  iio: adc: stm32-adc: make safe adc disable
  iio: dac: ad5380: align '*' each line and drop unneeded blank line
  iio: adc: qcom-spmi-rradc: Fix spelling mistake "coherrency" -> "coherency"
  iio: Don't use bare "unsigned"
  dt-bindings: iio: dac: mcp4922: expand for mcp4921 support
  iio: dac: mcp4922: add support to mcp4921
  iio: chemical: sps30: Move symbol exports into IIO_SPS30 namespace
  iio: pressure: bmp280: Move symbol exports to IIO_BMP280 namespace
  iio: imu: bmi160: Move exported symbols to IIO_BMI160 namespace
  iio: adc: stm32-adc: Use generic_handle_domain_irq()
  proximity: vl53l0x: Make VDD regulator actually optional
  MAINTAINERS: add include/dt-bindings/iio to IIO SUBSYSTEM AND DRIVERS
  dt-bindings: iio/accel: Fix adi,adxl345/6 example I2C address
  iio: gyro: bmg160: Fix typo in comment
  ...
2022-07-14 15:04:49 +02:00
Greg Kroah-Hartman
315f7e15c2 1st set of IIO fixes for the 5.19 cycle.
Most of these have been in next for a long time. Unfortunately there
 was one stray patch in the branch (wasn't a fix), so I've just rebased
 to remove that.
 
 * testing
   - Fix a missing MODULE_LICENSE() warning by restricting possible build
     configs.
 * Various drivers
   - Fix ordering of iio_get_trigger() being called before
     iio_trigger_register()
 * adi,admv1014
   - Fix dubious x & !y warning.
 * adi,axi-adc
   - Fix missing of_node_put() in error and normal paths.
 * aspeed,adc
   - Add missing of_node_put()
 * fsl,mma8452
   - Fix broken probing from device tree.
   - Drop check on return value of i2c write to device to cause reset as
     ACK will be missing (device reset before sending it).
 * fsl,vf610
   - Fix documentation of in_conversion_mode ABI.
 * iio-trig-sysfs
   - Ensure irq work has finished before freeing the trigger.
 * invensense,mpu3050
  - Disable regulators in error path.
 * invensense,icm42600
   - Fix collision of enum value of 0 with error path where 0 is no match.
 * renesas,rzg2l_Adc
   - Add missing fwnode_handle_put() in error path.
 * rescale
   - Fix a boolean logic bug for detection of raw + scale affecting an
     obscure corner case.
 * semtech,sx9324
   - Check return value of read of pin_defs
 * st,stm32-adc:
   - Fix interaction across ADC instances for some supported devices.
   - Drop false spurious IRQ messages.
   - Fix calibration value handling.  If we can't calibrate don't expose the
     vref_int channel.
   - Fix maximum clock rate for stm32pm15x
 * ti,ads131e08
   - Add missing fwnode_handle_put() in error paths.
 * xilinx,ams
   - Fix variable checked for error from platform_get_irq()
 * x-powers,axp288
   - Overide TS_PIN bias current for boards where it is not correctly
     initialized.
 * yamaha,yas530
   - Fix inverted check on calibration data being all zeros.
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Merge tag 'iio-fixes-for-5.19a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into char-misc-next

Jonathan writes:

1st set of IIO fixes for the 5.19 cycle.

Most of these have been in next for a long time. Unfortunately there
was one stray patch in the branch (wasn't a fix), so I've just rebased
to remove that.

* testing
  - Fix a missing MODULE_LICENSE() warning by restricting possible build
    configs.
* Various drivers
  - Fix ordering of iio_get_trigger() being called before
    iio_trigger_register()
* adi,admv1014
  - Fix dubious x & !y warning.
* adi,axi-adc
  - Fix missing of_node_put() in error and normal paths.
* aspeed,adc
  - Add missing of_node_put()
* fsl,mma8452
  - Fix broken probing from device tree.
  - Drop check on return value of i2c write to device to cause reset as
    ACK will be missing (device reset before sending it).
* fsl,vf610
  - Fix documentation of in_conversion_mode ABI.
* iio-trig-sysfs
  - Ensure irq work has finished before freeing the trigger.
* invensense,mpu3050
 - Disable regulators in error path.
* invensense,icm42600
  - Fix collision of enum value of 0 with error path where 0 is no match.
* renesas,rzg2l_Adc
  - Add missing fwnode_handle_put() in error path.
* rescale
  - Fix a boolean logic bug for detection of raw + scale affecting an
    obscure corner case.
* semtech,sx9324
  - Check return value of read of pin_defs
* st,stm32-adc:
  - Fix interaction across ADC instances for some supported devices.
  - Drop false spurious IRQ messages.
  - Fix calibration value handling.  If we can't calibrate don't expose the
    vref_int channel.
  - Fix maximum clock rate for stm32pm15x
* ti,ads131e08
  - Add missing fwnode_handle_put() in error paths.
* xilinx,ams
  - Fix variable checked for error from platform_get_irq()
* x-powers,axp288
  - Overide TS_PIN bias current for boards where it is not correctly
    initialized.
* yamaha,yas530
  - Fix inverted check on calibration data being all zeros.

* tag 'iio-fixes-for-5.19a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (26 commits)
  iio:proximity:sx9324: Check ret value of device_property_read_u32_array()
  iio: accel: mma8452: ignore the return value of reset operation
  iio: adc: stm32: fix maximum clock rate for stm32mp15x
  iio: adc: stm32: fix vrefint wrong calibration value handling
  iio: imu: inv_icm42600: Fix broken icm42600 (chip id 0 value)
  iio: adc: vf610: fix conversion mode sysfs node name
  iio: adc: adi-axi-adc: Fix refcount leak in adi_axi_adc_attach_client
  iio: test: fix missing MODULE_LICENSE for IIO_RESCALE=m
  iio:humidity:hts221: rearrange iio trigger get and register
  iio:chemical:ccs811: rearrange iio trigger get and register
  iio:accel:mxc4005: rearrange iio trigger get and register
  iio:accel:kxcjk-1013: rearrange iio trigger get and register
  iio:accel:bma180: rearrange iio trigger get and register
  iio: afe: rescale: Fix boolean logic bug
  iio: adc: aspeed: Fix refcount leak in aspeed_adc_set_trim_data
  iio: adc: stm32: Fix IRQs on STM32F4 by removing custom spurious IRQs message
  iio: adc: stm32: Fix ADCs iteration in irq handler
  iio: adc: ti-ads131e08: add missing fwnode_handle_put() in ads131e08_alloc_channels()
  iio: adc: rzg2l_adc: add missing fwnode_handle_put() in rzg2l_adc_parse_properties()
  iio: trigger: sysfs: fix use-after-free on remove
  ...
2022-06-20 09:49:52 +02:00
Haibo Chen
bf745142cc iio: accel: mma8452: ignore the return value of reset operation
On fxls8471, after set the reset bit, the device will reset immediately,
will not give ACK. So ignore the return value of this reset operation,
let the following code logic to check whether the reset operation works.

Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Fixes: ecabae7131 ("iio: mma8452: Initialise before activating")
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/1655292718-14287-1-git-send-email-haibo.chen@nxp.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-06-19 17:22:49 +01:00
Dmitry Rokosov
9354c224c9 iio:accel:mxc4005: rearrange iio trigger get and register
IIO trigger interface function iio_trigger_get() should be called after
iio_trigger_register() (or its devm analogue) strictly, because of
iio_trigger_get() acquires module refcnt based on the trigger->owner
pointer, which is initialized inside iio_trigger_register() to
THIS_MODULE.
If this call order is wrong, the next iio_trigger_put() (from sysfs
callback or "delete module" path) will dereference "default" module
refcnt, which is incorrect behaviour.

Fixes: 47196620c8 ("iio: mxc4005: add data ready trigger for mxc4005")
Signed-off-by: Dmitry Rokosov <ddrokosov@sberdevices.ru>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220524181150.9240-4-ddrokosov@sberdevices.ru
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-06-19 17:22:48 +01:00
Dmitry Rokosov
ed302925d7 iio:accel:kxcjk-1013: rearrange iio trigger get and register
IIO trigger interface function iio_trigger_get() should be called after
iio_trigger_register() (or its devm analogue) strictly, because of
iio_trigger_get() acquires module refcnt based on the trigger->owner
pointer, which is initialized inside iio_trigger_register() to
THIS_MODULE.
If this call order is wrong, the next iio_trigger_put() (from sysfs
callback or "delete module" path) will dereference "default" module
refcnt, which is incorrect behaviour.

Fixes: c1288b8338 ("iio: accel: kxcjk-1013: Increment ref counter for indio_dev->trig")
Signed-off-by: Dmitry Rokosov <ddrokosov@sberdevices.ru>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220524181150.9240-3-ddrokosov@sberdevices.ru
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-06-19 17:22:48 +01:00
Dmitry Rokosov
e5f3205b04 iio:accel:bma180: rearrange iio trigger get and register
IIO trigger interface function iio_trigger_get() should be called after
iio_trigger_register() (or its devm analogue) strictly, because of
iio_trigger_get() acquires module refcnt based on the trigger->owner
pointer, which is initialized inside iio_trigger_register() to
THIS_MODULE.
If this call order is wrong, the next iio_trigger_put() (from sysfs
callback or "delete module" path) will dereference "default" module
refcnt, which is incorrect behaviour.

Fixes: 0668a4e4d2 ("iio: accel: bma180: Fix indio_dev->trig assignment")
Signed-off-by: Dmitry Rokosov <ddrokosov@sberdevices.ru>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220524181150.9240-2-ddrokosov@sberdevices.ru
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-06-19 17:22:48 +01:00
Andy Shevchenko
072c7d3438 iio: accel: mma7660: Drop wrong use of ACPI_PTR()
ACPI_PTR() is more harmful than helpful. For example, in this case
if CONFIG_ACPI=n, the ID table left unused which is not what we want.

Instead of making linker to drop a section, drop ACPI_PTR().

As a side effect this makes driver ACPI and OF clean.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220616142451.10322-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-06-18 16:33:25 +01:00
Jonathan Cameron
cb490b10c3 iio:accel:kxsd9: Switch from CONFIG_PM guards to pm_ptr() etc
Letting the compiler remove these functions when the kernel is built
without CONFIG_PM support is simpler and less error prone than the
use of #ifdef based config guards.

Removing instances of this approach from IIO also stops them being
copied into new drivers.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20220220181522.541718-5-jic23@kernel.org
Link: https://lore.kernel.org/r/20220604161223.461847-2-jic23@kernel.org
2022-06-15 22:07:09 +01:00
Jonathan Cameron
b1d3a80663 iio: accel: sca3300: Fix alignment for DMA safety
____cacheline_aligned is insufficient guarantee for non-coherent DMA.
Switch to the updated IIO_DMA_MINALIGN definition.

Fixes: 9cc9806e22 ("iio: accel: Add driver for Murata SCA3300 accelerometer")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Tomas Melin <tomas.melin@vaisala.com>
Acked-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220508175712.647246-9-jic23@kernel.org
2022-06-14 11:53:12 +01:00
Jonathan Cameron
a263456f0e iio: accel: sca3000: Fix alignment for DMA safety
____cacheline_aligned is insufficient guarantee for non-coherent DMA.
Switch to the updated IIO_DMA_MINALIGN definition.

The second alignment marking is left in place to avoid doing more than
the simple fix in this patch.

Fixes: ced5c03d36 ("staging:iio:accel:sca3000 merge files into one.")
Fixes: 152a6a884a ("staging:iio:accel:sca3000 move to hybrid hard / soft buffer design.")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220508175712.647246-8-jic23@kernel.org
2022-06-14 11:53:12 +01:00
Jonathan Cameron
a794b34083 iio: accel: bmi088: Fix alignment for DMA safety
____cacheline_aligned is insufficient guarantee for non-coherent DMA.
Switch to the updated IIO_DMA_MINALIGN definition.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220508175712.647246-7-jic23@kernel.org
2022-06-14 11:53:12 +01:00
Jonathan Cameron
38e71240e2 iio: accel: bma220: Fix alignment for DMA safety
____cacheline_aligned is insufficient guarantee for non-coherent DMA.
Switch to the updated IIO_DMA_MINALIGN definition.

Fixes: bf2a5600a3 ("iio: accel: Add support for Bosch BMA220")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220508175712.647246-6-jic23@kernel.org
2022-06-14 11:53:11 +01:00
Jonathan Cameron
e1f956a804 iio: accel: adxl367: Fix alignment for DMA safety
____cacheline_aligned is insufficient guarantee for non-coherent DMA.
Switch to the updated IIO_DMA_MINALIGN definition.

Update comment to reflect that DMA safety may require separate
cachelines.

Fixes: cbab791c5e ("iio: accel: add ADXL367 driver")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Cosmin Tanislav <demonsingur@gmail.com>
Acked-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220508175712.647246-5-jic23@kernel.org
2022-06-14 11:53:11 +01:00
Jonathan Cameron
46403dcf3a iio: accel: adxl355: Fix alignment for DMA safety
____cacheline_aligned is insufficient guarantee for non-coherent DMA.
Switch to the updated IIO_DMA_MINALIGN definition.

Fixes: 327a0eaf19 ("iio: accel: adxl355: Add triggered buffer support")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Puranjay Mohan <puranjay12@gmail.com>
Acked-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220508175712.647246-4-jic23@kernel.org
2022-06-14 11:53:11 +01:00
Jonathan Cameron
f68a0445ee iio: accel: adxl313: Fix alignment for DMA safety
____cacheline_aligned is insufficient guarantee for non-coherent DMA.
Switch to the updated IIO_DMA_MINALIGN definition.

Fixes: 636d446330 ("iio: accel: Add driver support for ADXL313")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220508175712.647246-3-jic23@kernel.org
2022-06-14 11:53:11 +01:00
Jonathan Cameron
12c4efe350 iio: core: Fix IIO_ALIGN and rename as it was not sufficiently large
Discussion of the series:
https://lore.kernel.org/all/20220405135758.774016-1-catalin.marinas@arm.com/
mm, arm64: Reduce ARCH_KMALLOC_MINALIGN brought to my attention that
our current IIO usage of L1CACHE_ALIGN is insufficient as their are Arm
platforms out their with non coherent DMA and larger cache lines at
at higher levels of their cache hierarchy.

Rename the define to make it's purpose more explicit. It will be used
much more widely going forwards (to replace incorrect ____cacheline_aligned
markings.

Note this patch will greatly reduce the padding on some architectures
that have smaller requirements for DMA safe buffers.

The history of changing values of ARCH_KMALLOC_MINALIGN via
ARCH_DMA_MINALIGN on arm64 is rather complex. I'm not tagging this
as fixing a particular patch from that route as it's not clear what to tag.

Most recently a change to bring them back inline was reverted because
of some Qualcomm Kryo cores with an L2 cache with 128-byte lines
sitting above the point of coherency.

c1132702c7 Revert "arm64: cache: Lower ARCH_DMA_MINALIGN to 64 (L1_CACHE_BYTES)"
That reverts:
65688d2a05 arm64: cache: Lower ARCH_DMA_MINALIGN to 64 (L1_CACHE_BYTES) which
refers to the change originally being motivated by Thunder x1 performance
rather than correctness.

Fixes: 6f7c8ee585 ("staging:iio: Add ability to allocate private data space to iio_allocate_device")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220508175712.647246-2-jic23@kernel.org
2022-06-14 11:53:11 +01:00
Xiang wangx
9e63be2acb iio: accel: sca3000: Fix syntax errors in comments
Delete the redundant word 'via'.

Signed-off-by: Xiang wangx <wangxiang@cdjrlc.com>
Link: https://lore.kernel.org/r/20220604040541.8470-1-wangxiang@cdjrlc.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-06-14 11:53:09 +01:00
LI Qingwu
38d5cd1e7e iio: accel: sca3300: Add inclination channels
Different from SCA3300, SCL3300 can output inclination angles.
Angles are formed from acceleration with following equations:
ANG_X = atan2(accx , sqrt(pow(accy , 2) + pow(accz , 2)))
ANG_Y = atan2(accy , sqrt(pow(accx , 2) + pow(accz , 2)))
ANG_Z = atan2(accz , sqrt(pow(accx , 2) + pow(accy , 2)))

The commit adds the output of the raw value, scale
and scale_available of angles.

New interfaces:
  in_incli_scale
  in_incli_scale_available
  in_incli_x_raw
  in_incli_y_raw
  in_incli_z_raw
Data converted by application of scale to degrees.

Signed-off-by: LI Qingwu <Qing-wu.Li@leica-geosystems.com.cn>
Reviewed-by: Tomas Melin <tomas.melin@vaisala.com>
Link: https://lore.kernel.org/r/20220529061853.3044893-6-Qing-wu.Li@leica-geosystems.com.cn
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-06-14 11:53:09 +01:00
LI Qingwu
24fb2d3c46 iio: accel: sca3300: Add support for SCL3300
Add support for Murata SCL3300, a 3-axis MEMS accelerometer.
Same as SCA3300, it has the accelerometer and temperature output.

Datasheet: www.murata.com/en-us/products/sensor/inclinometer/overview/lineup/scl3300
Signed-off-by: LI Qingwu <Qing-wu.Li@leica-geosystems.com.cn>
Reviewed-by: Tomas Melin <tomas.melin@vaisala.com>
Link: https://lore.kernel.org/r/20220529061853.3044893-5-Qing-wu.Li@leica-geosystems.com.cn
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-06-14 11:53:09 +01:00
LI Qingwu
ad985d4d38 iio: accel: sca3300: modified to support multi chips
Prepare the way for multiple chips and additional channels:
- Modify the driver to read the device ID and load the corresponding
  sensor information from the table to support multiple chips
- Add prepares for the addition of extra channels
- Prepare for handling the operation modes for multiple chips

Signed-off-by: LI Qingwu <Qing-wu.Li@leica-geosystems.com.cn>
Reviewed-by: Tomas Melin <tomas.melin@vaisala.com>
Link: https://lore.kernel.org/r/20220529061853.3044893-4-Qing-wu.Li@leica-geosystems.com.cn
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-06-14 11:53:09 +01:00
LI Qingwu
e59dd3aca9 iio: accel: sca3300: add define for temp channel for reuse.
Add define of SCA3300_TEMP_CHANNEL for reuse.

Signed-off-by: LI Qingwu <Qing-wu.Li@leica-geosystems.com.cn>
Reviewed-by: Tomas Melin <tomas.melin@vaisala.com>
Link: https://lore.kernel.org/r/20220529061853.3044893-3-Qing-wu.Li@leica-geosystems.com.cn
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-06-14 11:53:09 +01:00
LI Qingwu
57387d3c09 iio: accel: bmi088: Add support for bmi090l accel
Add supports for BMI090L, it's a high-performance Inertial
Measurement Unit, with an accelerometer and gyroscope.
The commit adds the accelerometer driver for the SPI interface.
The gyroscope part is already supported by the BMG160 driver.
Same as BMI088, BMI090L have the range of +/-3, 6, 12, and 24g.

Reviewed-by: Alexandru Ardelean <ardeleanalex@gmail.com>
Signed-off-by: LI Qingwu <Qing-wu.Li@leica-geosystems.com.cn>
Link: https://lore.kernel.org/r/20220526133359.2261928-6-Qing-wu.Li@leica-geosystems.com.cn
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-06-11 14:35:28 +01:00
LI Qingwu
7a61456c83 iio: accel: bmi088: Add support for bmi085 accel
Add supports for BMI085, an Inertial Measurement Unit,
with an accelerometer and gyroscope.
The commit adds the accelerometer driver for the SPI interface.
The gyroscope part is already supported by the BMG160 driver.
Unlike BMI088, the BMI085 accelerometer ranges are +/-2, 4, 6,
and 8g, the scales are calculated as 9.8/32768*pow(2,reg41+1).

Reviewed-by: Alexandru Ardelean <ardeleanalex@gmail.com>
Signed-off-by: LI Qingwu <Qing-wu.Li@leica-geosystems.com.cn>
Link: https://lore.kernel.org/r/20220526133359.2261928-5-Qing-wu.Li@leica-geosystems.com.cn
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-06-11 14:35:28 +01:00
LI Qingwu
67ac266db8 iio: accel: bmi088: modified the device name
iio: accel: bmi088: modified the device name

It is possible to have multiple sensors connected on the same platform.
For support of different sensors, making it possible to obtain the
device name by reading the chip id. If the device was found in the
table but the device tree binding is different, the driver will carry
on with a warning. If no matching device was found, the driver load
the binding chip info.

Tested case, test with bmi085 and bmi090 patches applied:
connect 3 bmi090l to the system, and set device tree compatible:
spi2.0: compatible = "bosch,bmi090l-accel";
spi2.2: compatible = "bosch,bmi088-accel";
spi2.4: compatible = "bosch,bmi085-accel";

Get a warning for the mismatched devices:
bmi088_accel_spi spi2.2: unexpected chip id 0x1A
bmi088_accel_spi spi2.4: unexpected chip id 0x1A

Get the real present device name:
/sys/bus/iio/devices/iio:device1/name:bmi090l-accel
/sys/bus/iio/devices/iio:device3/name:bmi090l-accel
/sys/bus/iio/devices/iio:device5/name:bmi090l-accel

Signed-off-by: LI Qingwu <Qing-wu.Li@leica-geosystems.com.cn>
Link: https://lore.kernel.org/r/20220526133359.2261928-4-Qing-wu.Li@leica-geosystems.com.cn
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-06-11 14:35:28 +01:00
LI Qingwu
48d07b3be8 iio: accel: bmi088: Make it possible to config scales
The sensor can set the scales by writing the range register 0x41,
The current driver has no interface to configure it.
The commit adds the interface for config the scales.

Reviewed-by: Alexandru Ardelean <ardeleanalex@gmail.com>
Signed-off-by: LI Qingwu <Qing-wu.Li@leica-geosystems.com.cn>
Link: https://lore.kernel.org/r/20220526133359.2261928-3-Qing-wu.Li@leica-geosystems.com.cn
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-06-11 14:35:28 +01:00
LI Qingwu
733147729a iio: accel: bmi088: Modified the scale calculate
The units after application of scale are 100*m/s^2,
The scale calculation is only for the device
with the range of 3, 6, 12, and 24g,
but some other chips have a range of 2, 4, 6, and 8g.

Modified the scales from formula to a list, the scales in the list are
calculated as 9.8/32768*pow(2,reg41+1)*1.5, refer to datasheet 5.3.4.
The new units after the application of scale are m/s^2.

Reviewed-by: Alexandru Ardelean <ardeleanalex@gmail.com>
Signed-off-by: LI Qingwu <Qing-wu.Li@leica-geosystems.com.cn>
Link: https://lore.kernel.org/r/20220526133359.2261928-2-Qing-wu.Li@leica-geosystems.com.cn
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-06-11 14:35:28 +01:00
Cosmin Tanislav
0bd0bb1fc1 iio: accel: adxl367: do not update FIFO watermark on scan mode update
Currently, the driver updates the FIFO watermark inside both
update_scan_mode() and hwfifo_set_watermark(). Inside the IIO core,
hwfifo_set_watermark() is called immediately after update_scan_mode(),
making the first call to set_fifo_samples() redundant.

Remove the first call to set_fifo_samples(), and merge the
set_fifo_samples() function into the set_fifo_watermark()
function. Also, since fifo_set_size is always set inside of
update_scan_mode(), and it cannot be set to 0, remove the
zero check from set_fifo_samples().

Signed-off-by: Cosmin Tanislav <cosmin.tanislav@analog.com>
Link: https://lore.kernel.org/r/20220514182010.152784-1-cosmin.tanislav@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-06-11 14:35:27 +01:00
Gwendal Grignou
7cbb6681d7 iio: common: cros_ec_sensors: Add label attribute
When sensor location is known, populate iio sysfs "label" attribute:

* "accel-base" : the sensor is in the base of the convertible (2-1)
  device.
* "accel-display" : the sensor is in the lid/display plane of the
  device.
* "accel-camera" : the sensor is in the swivel camera subassembly.

The non-standard |location| attribute is removed, the field |loc| in
cros_ec_sensors_core_state is removed.

It apply to standalone accelerometer as well as IMU (accelerometer +
gyroscope) and sensors where the location is known (light).

Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Link: https://lore.kernel.org/r/20220427190804.961697-3-gwendal@chromium.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-06-11 14:35:26 +01:00
Jagath Jog J
3cf122c20b iio: accel: bma400: Add support for activity and inactivity events
Add support for activity and inactivity events for all axis based on the
threshold, duration and hysteresis value set from the userspace. INT1 pin
is used to interrupt and event is pushed to userspace.

Signed-off-by: Jagath Jog J <jagathjog1996@gmail.com>
Link: https://lore.kernel.org/r/20220505133021.22362-9-jagathjog1996@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-06-11 14:35:26 +01:00
Jagath Jog J
00ee658ff5 iio: accel: bma400: Add activity recognition support
Add support for activity recognition like STILL, WALKING, RUNNING
and these events are pushed to the userspace whenever the STEP
interrupt occurs.

Signed-off-by: Jagath Jog J <jagathjog1996@gmail.com>
Link: https://lore.kernel.org/r/20220505133021.22362-8-jagathjog1996@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-06-11 14:35:26 +01:00
Jagath Jog J
d024af5b39 iio: accel: bma400: Add step change event
Added support for event when there is a detection of step change.
INT1 pin is used to interrupt and event is pushed to userspace.

Signed-off-by: Jagath Jog J <jagathjog1996@gmail.com>
Link: https://lore.kernel.org/r/20220505133021.22362-7-jagathjog1996@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-06-11 14:35:26 +01:00
Jagath Jog J
d221de60ee iio: accel: bma400: Add separate channel for step counter
Added channel for step counter which can be enable or disable
through the sysfs interface.

Signed-off-by: Jagath Jog J <jagathjog1996@gmail.com>
Link: https://lore.kernel.org/r/20220505133021.22362-6-jagathjog1996@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-06-11 14:35:26 +01:00
Jagath Jog J
ffe0ab6a96 iio: accel: bma400: Add triggered buffer support
Added trigger buffer support to read continuous acceleration
and temperature data from device with data ready interrupt which
is mapped to INT1 pin.

Signed-off-by: Jagath Jog J <jagathjog1996@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220505133021.22362-5-jagathjog1996@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-06-11 14:35:26 +01:00
Jagath Jog J
12c99f859f iio: accel: bma400: conversion to device-managed function
This is a conversion to device-managed by using devm_iio_device_register()
inside probe function. Previously the bma400 was not put into power down
mode in some error paths in probe where it now is, but that should cause
no harm.

The dev_set_drvdata() call, bma400_remove() function and hooks in the I2C
and SPI driver struct is removed as devm_iio_device_register() function is
used to automatically unregister on driver detach.

Signed-off-by: Jagath Jog J <jagathjog1996@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220505133021.22362-4-jagathjog1996@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-06-11 14:35:26 +01:00
Jagath Jog J
1bd2dc6ea8 iio: accel: bma400: Reordering of header files
Reordering of header files and removing the iio/sysfs.h since
custom attributes are not being used in the driver.

Signed-off-by: Jagath Jog J <jagathjog1996@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220505133021.22362-3-jagathjog1996@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-06-11 14:35:26 +01:00