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mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-17 09:43:59 +08:00
Commit Graph

318 Commits

Author SHA1 Message Date
Lorenzo Bianconi
ec19a6f499 iio: imu: st_lsm6dsx: inline output acc/gyro output regs
Remove output register definition and inline register value since
they are used only for iio channel definition. This is a preliminary
patch to add support for LSM9DS1 sensor to st_lsm6dsx driver

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Tested-by: Martin Kepplinger <martin.kepplinger@puri.sm>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-08-05 15:02:43 +01:00
Lorenzo Bianconi
640aca3fb8 iio: imu: st_lsm6dsx: move fs_table in st_lsm6dsx_sensor_settings
Move fs_table in st_lsm6dsx_sensor_settings in order to support
sensors with different gain maps. This is a preliminary patch to add
support for LSM9DS1 sensor to st_lsm6dsx driver

Tested-by: Martin Kepplinger <martin.kepplinger@puri.sm>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-08-05 15:01:10 +01:00
Lorenzo Bianconi
40dd734389 iio: imu: st_lsm6dsx: move odr_table in st_lsm6dsx_sensor_settings
Move sensor odr table in st_lsm6dsx_sensor_settings in order to support
sensors with different odr maps. This is a preliminary patch to add
support for LSM9DS1 sensor to st_lsm6dsx driver

Tested-by: Martin Kepplinger <martin.kepplinger@puri.sm>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-08-05 14:58:07 +01:00
Sean Nyekjaer
ec76d918f2 iio: imu: st_lsm6dsx: flip irq return logic
No need for using reverse logic in the irq return,
fix this by flip things around.

Signed-off-by: Sean Nyekjaer <sean@geanix.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-07-27 22:55:27 +01:00
Vitor Soares
2660b0080b iio: imu: st_lsm6dsx: add i3c basic support for LSM6DSO and LSM6DSR
For today the st_lsm6dsx driver support LSM6DSO and LSM6DSR sensor only in
spi and i2c mode.

The LSM6DSO and LSM6DSR are also i3c capable so let's give i3c support to
them.

Signed-off-by: Vitor Soares <vitor.soares@synopsys.com>
Acked-by: Lorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-07-27 22:55:27 +01:00
Alexandru Ardelean
db6ed4d23d iio: imu: Add support for the ADIS16460 IMU
The ADIS16460 device is a complete inertial system that includes a triaxial
gyroscope and a triaxial accelerometer. It's more simplified design than
that of the ADIS16480, and does not offer the triaxial magnetometers &
pressure sensors. It does also have a temperature sensor (like the
ADIS16480).
Since it is part of the ADIS16XXX family, it re-uses parts of the ADIS
library.

Naturally, the register map is different and much more simplified than the
ADIS16480 subfamily, so it cannot be integrated into that driver. A major
difference is that the registers are not paged.

One thing that is particularly special about it, is that it requires a
higher delay between CS changes (i.e. when CS goes up, the spec recommends
that it be brought down after a minimum of 16 uS).
Other ADIS chips require (via spec) a minimum of 2 uS between CS changes.
The kernel's 10 uS default should be fine for those other chips; they
haven't been tested with lower CS change delays yet.

Datasheet:
  https://www.analog.com/media/en/technical-documentation/data-sheets/adis16460.pdf

Signed-off-by: Dragos Bogdan <dragos.bogdan@analog.com>
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-07-27 22:52:06 +01:00
Alexandru Ardelean
dca39af883 iio: imu: adis: Add support for SPI transfer cs_change_delay
The ADIS16460 requires a higher delay before the next transfer. Since the
SPI framework supports configuring the delay before the next transfer, this
driver will become the first user of it.

The support for this functionality in ADIS16460 requires an addition to the
ADIS lib to support the `cs_change_delay` functionality from the SPI
subsystem.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-07-27 22:52:06 +01:00
Lorenzo Bianconi
dbcd2088a7 iio: imu: st_lsm6dsx: add support to LSM6DS3TR-C
Add support to STM LSM6DS3TR-C 6-axis (acc + gyro) Mems sensor
https://www.st.com/resource/en/datasheet/lsm6ds3tr-c.pdf

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-07-27 20:11:17 +01:00
Fuqian Huang
d284feaf98 iio: imu: mpu6050: Replace devm_add_action() followed by failure action with devm_add_action_or_reset()
devm_add_action_or_reset() is introduced as a helper function which
internally calls devm_add_action(). If devm_add_action() fails
then it will execute the action mentioned and return the error code.
This reduce source code size (avoid writing the action twice)
and reduce the likelyhood of bugs.

Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-07-27 20:11:14 +01:00
Greg Kroah-Hartman
c55cc97a25 Second set of IIO device support, features, cleanups and minor fixes for 5.3.
A few bits for the counters subsystem mixed in here as well.
 There are some late breaking fixes as well, which aren't so urgent
 they can't wait for the merge window.
 
 New Device Support
 * adf4371
   - New driver + bindings.
   - Support the adf4372 PLL. Mostly ID and bindings.
 * ad8366 (note includes rework of driver needed to allow support for these).
   - Support the ADL5240 variable gain amplifier (VGA).
   - Support the ADA4961 digital gain amplifier (DGA).
 * dps310
   - New driver, in several parts from different authors for this temp
     and pressure sensor.
   - Includes errata workaround for a temperature reading issue.
 * stk3310
   - Support the stk3335, mostly ID.
 
 Features and cleanups
 * core
   - drop error handling on debugfs registration.
   - harden by making sure we don't overrun iio_chan_info_postfix.
 * docs
   - convert remaining docs to rst. At somepoint we'll fit these few
     into the main IIO docs.
   - improve sampling_frequency_available docs but explaining the
     range form.
 * ad_sigma_delta
   - Drop a pointless goto.
 * ad2s1210
   - Drop pointless platform data null check seeing as we don't actually
     use platform data anymore.
 * ad7124
   - Relax limitation on channel numbers to allow pseudo different channels.
   - Support control of whether the input is buffered via DT.
   - Use dynamic allocation for channel configuration to make it easier
     to support new devices.
   - YAML binding conversion.
 * ad7150
   - Comment tidy up.
   - Consistent and simple if (ret) handling of i2c errors.
   - FIELD_GET and GENMASK.
   - Ternary rather than !!(condition) for readability.
   - Use macros to avoid repetition of channel definitions.
 * ad7606
   - Add software channel config (rather that pin controlled)
   - Refactor to simplify addition of new part in future.
 * ad7746
   - of_deivce_id table.
 * ad7780
   - MAINTAINERS entry
   - YAML DT bindings.
 * ad8366
   - Stop using core mlock in favour of well scoped local lock.
   - SPDX + copyright date update.
 * ad9834
   - of_device_id table
 * adf4371
   - Add support for output stage muting before lock on has occured.
 * adis library
   - MAINTAINERS entry to reflect that this now Alexandru's problem ;)
 * adis162xx:
   - Fix a slightly incorrect set of comments and print statements on
     minimum supported voltage.
 * adis16203
   - of_device_id table.
 * adis16240
   - Add of_device_id table (in two parts as first patch only used it for
     MODULE_DEVICE_TABLE.)
 * adt7316-spi
   - of_device_id table
 * adxl372
   - YAML DT binding conversion.
   - Cleanup use of buffer callback functions (precursor to core rework).
 * bh1710
   - Simplify getting the i2c adapter from the client.
 * dht11
   - Mote to newer GPIO consumer interface.
 * kxcjk-1013.c
   - Add binding for sensor in display of some ultrabooks after userspace
     tools updated for it not be a problem to report two similar sensors.
 * imx7d
   - drop unused variables.
   - white space
   - define instead of variable for clock frequency that is fixed.
   - drop pointless error message.
 * messon_saradc
   - SPDX
 * sps30
   - MAINTAINERS entry
   - YAML binding conversion.
 * st_accel
   - Tidy up ordering in various buffer related callbacks. This is
     part of a long running effort to simplify the core code.
 * stm32-dfsdm:
   - Manage the resolution cleanly in triggerd modes.
   - Add fast mode support which allows more flexible filter choices.
   - Add a comment on the reason for a 16 bit record when technically
     not 'required'.
 * st_lsm6dsx
   - Embed device name in the sensor_settings struct as i3c doesn't
     have a convenient name field to use for this.
 * xilinx-adc
   - Relax constraints on supported platforms to reflect that this
     can used with FPGAs on PCIe cards and hence many architectures.
 * counters/ftm-quaddec
   - Fix some formatting io MODULE_AUTHOR
   - MAINTAINERS entry
 
 Fixes
 * tools
   - fix incorrect handling of 32 bit channels.
 * sca3000
   - Potential endian bug that is unlikely to bite anyone (be64 host
     seems unlikely for this old part).
 * stm32-adc
   - Add vdda-supply. On some boards it needs to be turned on to supply
     the ADC.  DT bindings included.
 * stm32-dfsdm
   - Fix output resolution to work with filter orders other than 3.
   - Fix output datatype as it's signed and previously claimed not to be.
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Merge tag 'iio-for-5.3b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

Second set of IIO device support, features, cleanups and minor fixes for 5.3.

A few bits for the counters subsystem mixed in here as well.
There are some late breaking fixes as well, which aren't so urgent
they can't wait for the merge window.

New Device Support
* adf4371
  - New driver + bindings.
  - Support the adf4372 PLL. Mostly ID and bindings.
* ad8366 (note includes rework of driver needed to allow support for these).
  - Support the ADL5240 variable gain amplifier (VGA).
  - Support the ADA4961 digital gain amplifier (DGA).
* dps310
  - New driver, in several parts from different authors for this temp
    and pressure sensor.
  - Includes errata workaround for a temperature reading issue.
* stk3310
  - Support the stk3335, mostly ID.

Features and cleanups
* core
  - drop error handling on debugfs registration.
  - harden by making sure we don't overrun iio_chan_info_postfix.
* docs
  - convert remaining docs to rst. At somepoint we'll fit these few
    into the main IIO docs.
  - improve sampling_frequency_available docs but explaining the
    range form.
* ad_sigma_delta
  - Drop a pointless goto.
* ad2s1210
  - Drop pointless platform data null check seeing as we don't actually
    use platform data anymore.
* ad7124
  - Relax limitation on channel numbers to allow pseudo different channels.
  - Support control of whether the input is buffered via DT.
  - Use dynamic allocation for channel configuration to make it easier
    to support new devices.
  - YAML binding conversion.
* ad7150
  - Comment tidy up.
  - Consistent and simple if (ret) handling of i2c errors.
  - FIELD_GET and GENMASK.
  - Ternary rather than !!(condition) for readability.
  - Use macros to avoid repetition of channel definitions.
* ad7606
  - Add software channel config (rather that pin controlled)
  - Refactor to simplify addition of new part in future.
* ad7746
  - of_deivce_id table.
* ad7780
  - MAINTAINERS entry
  - YAML DT bindings.
* ad8366
  - Stop using core mlock in favour of well scoped local lock.
  - SPDX + copyright date update.
* ad9834
  - of_device_id table
* adf4371
  - Add support for output stage muting before lock on has occured.
* adis library
  - MAINTAINERS entry to reflect that this now Alexandru's problem ;)
* adis162xx:
  - Fix a slightly incorrect set of comments and print statements on
    minimum supported voltage.
* adis16203
  - of_device_id table.
* adis16240
  - Add of_device_id table (in two parts as first patch only used it for
    MODULE_DEVICE_TABLE.)
* adt7316-spi
  - of_device_id table
* adxl372
  - YAML DT binding conversion.
  - Cleanup use of buffer callback functions (precursor to core rework).
* bh1710
  - Simplify getting the i2c adapter from the client.
* dht11
  - Mote to newer GPIO consumer interface.
* kxcjk-1013.c
  - Add binding for sensor in display of some ultrabooks after userspace
    tools updated for it not be a problem to report two similar sensors.
* imx7d
  - drop unused variables.
  - white space
  - define instead of variable for clock frequency that is fixed.
  - drop pointless error message.
* messon_saradc
  - SPDX
* sps30
  - MAINTAINERS entry
  - YAML binding conversion.
* st_accel
  - Tidy up ordering in various buffer related callbacks. This is
    part of a long running effort to simplify the core code.
* stm32-dfsdm:
  - Manage the resolution cleanly in triggerd modes.
  - Add fast mode support which allows more flexible filter choices.
  - Add a comment on the reason for a 16 bit record when technically
    not 'required'.
* st_lsm6dsx
  - Embed device name in the sensor_settings struct as i3c doesn't
    have a convenient name field to use for this.
* xilinx-adc
  - Relax constraints on supported platforms to reflect that this
    can used with FPGAs on PCIe cards and hence many architectures.
* counters/ftm-quaddec
  - Fix some formatting io MODULE_AUTHOR
  - MAINTAINERS entry

Fixes
* tools
  - fix incorrect handling of 32 bit channels.
* sca3000
  - Potential endian bug that is unlikely to bite anyone (be64 host
    seems unlikely for this old part).
* stm32-adc
  - Add vdda-supply. On some boards it needs to be turned on to supply
    the ADC.  DT bindings included.
* stm32-dfsdm
  - Fix output resolution to work with filter orders other than 3.
  - Fix output datatype as it's signed and previously claimed not to be.

* tag 'iio-for-5.3b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (68 commits)
  iio: iio-utils: Fix possible incorrect mask calculation
  iio: frequency: adf4371: Add support for output stage mute
  dt-bindings: iio: frequency: Add ADF4372 PLL documentation
  iio: frequency: adf4371: Add support for ADF4372 PLL
  dt-bindings: iio: adc: Add buffered input property
  Convert AD7124 bindings documentation to YAML format.
  iio: adc: ad7124: Shift to dynamic allocation for channel configuration
  iio: adc: ad7124: Add buffered input support
  iio: adc: ad7124: Remove input number limitation
  MAINTAINERS: add ADIS IMU driver library entry
  iio: adis162xx: fix low-power docs & reports
  counter/ftm-quaddec: Add missing '>' in MODULE_AUTHOR
  iio: core: no need to check return value of debugfs_create functions
  docs: iio: convert to ReST
  iio: adc: stm32-adc: add missing vdda-supply
  dt-bindings: iio: adc: stm32: add missing vdda supply
  iio: adc: stm32-dfsdm: add comment for 16 bits record
  iio: adc: stm32-dfsdm: add fast mode support
  iio: adc: stm32-dfsdm: manage data resolution in trigger mode
  iio: adc: stm32-dfsdm: fix data type
  ...
2019-07-01 10:58:13 +02:00
Linus Torvalds
db54615e21 Staging/IIO/Counter fixes for 5.2-rc6
Here are some small driver bugfixes for some staging/iio/counter
 drivers.
 
 Staging and IIO have been lumped together for a while, as those
 subsystems cross the areas a log, and counter is used by IIO, so that's
 why they are all in one pull request here.
 
 These are small fixes for reported issues in some iio drivers, the erofs
 filesystem, and a build issue for counter code.
 
 All have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging/IIO/counter fixes from Greg KH:
 "Here are some small driver bugfixes for some staging/iio/counter
  drivers.

  Staging and IIO have been lumped together for a while, as those
  subsystems cross the areas a log, and counter is used by IIO, so
  that's why they are all in one pull request here.

  These are small fixes for reported issues in some iio drivers, the
  erofs filesystem, and a build issue for counter code.

  All have been in linux-next with no reported issues"

* tag 'staging-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  staging: erofs: add requirements field in superblock
  counter/ftm-quaddec: Add missing dependencies in Kconfig
  staging: iio: adt7316: Fix build errors when GPIOLIB is not set
  iio: temperature: mlx90632 Relax the compatibility check
  iio: imu: st_lsm6dsx: fix PM support for st_lsm6dsx i2c controller
  staging:iio:ad7150: fix threshold mode config bit
2019-06-21 10:20:19 -07:00
Thomas Gleixner
d2912cb15b treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
Based on 2 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation #

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 4122 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19 17:09:55 +02:00
Greg Kroah-Hartman
d7a5417b89 Second set of IIO fixes for the 5.2 cycle.
* ad7150
   - sense of bit for controlling adaptive vs fixed threshold was flipped.
 * adt7316
   - Fix a build issue due to wrong headers for gpio usage.
 * lsm6dsx
   - correctly suspend / resume i2c slaves when the host goes to sleep.
 * mlx90632
   - relax a compatability check to allow for newer devices.
 
 Also one counters fix
 
 * counter/ftm-quaddec
   - missing dependencies in Kconfig.
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Merge tag 'iio-fixes-for-5.2b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus

Jonathan writes:

Second set of IIO fixes for the 5.2 cycle.

* ad7150
  - sense of bit for controlling adaptive vs fixed threshold was flipped.
* adt7316
  - Fix a build issue due to wrong headers for gpio usage.
* lsm6dsx
  - correctly suspend / resume i2c slaves when the host goes to sleep.
* mlx90632
  - relax a compatability check to allow for newer devices.

Also one counters fix

* counter/ftm-quaddec
  - missing dependencies in Kconfig.

* tag 'iio-fixes-for-5.2b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio:
  counter/ftm-quaddec: Add missing dependencies in Kconfig
  staging: iio: adt7316: Fix build errors when GPIOLIB is not set
  iio: temperature: mlx90632 Relax the compatibility check
  iio: imu: st_lsm6dsx: fix PM support for st_lsm6dsx i2c controller
  staging:iio:ad7150: fix threshold mode config bit
2019-06-17 22:28:29 +02:00
Lorenzo Bianconi
81956a93b5 iio: imu: st_lsm6dsx: get device name from st_lsm6dsx_sensor_settings
Introduce sensor name in st_lsm6dsx_sensor_settings table. This is
a preliminary patch to add I3C support to st_lsm6dsx since i3c_device_id
data structure does not contain a name field

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-06-17 21:06:45 +01:00
Thomas Gleixner
36edc93958 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 330
Based on 1 normalized pattern(s):

  this file is subject to the terms and conditions of version 2 of the
  gnu general public license see the file copying in the main
  directory of this archive for more details

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 55 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190530000436.108941081@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05 17:37:06 +02:00
Thomas Gleixner
2025cf9e19 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms and conditions of the gnu general public license
  version 2 as published by the free software foundation this program
  is distributed in the hope it will be useful but without any
  warranty without even the implied warranty of merchantability or
  fitness for a particular purpose see the gnu general public license
  for more details

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 263 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190529141901.208660670@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05 17:36:37 +02:00
Thomas Gleixner
9c92ab6191 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282
Based on 1 normalized pattern(s):

  this software is licensed under the terms of the gnu general public
  license version 2 as published by the free software foundation and
  may be copied distributed and modified under those terms this
  program is distributed in the hope that it will be useful but
  without any warranty without even the implied warranty of
  merchantability or fitness for a particular purpose see the gnu
  general public license for more details

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 285 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190529141900.642774971@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05 17:36:37 +02:00
Linus Torvalds
2f4c533499 SPDX update for 5.2-rc3, round 1
Here is another set of reviewed patches that adds SPDX tags to different
 kernel files, based on a set of rules that are being used to parse the
 comments to try to determine that the license of the file is
 "GPL-2.0-or-later" or "GPL-2.0-only".  Only the "obvious" versions of
 these matches are included here, a number of "non-obvious" variants of
 text have been found but those have been postponed for later review and
 analysis.
 
 There is also a patch in here to add the proper SPDX header to a bunch
 of Kbuild files that we have missed in the past due to new files being
 added and forgetting that Kbuild uses two different file names for
 Makefiles.  This issue was reported by the Kbuild maintainer.
 
 These patches have been out for review on the linux-spdx@vger mailing
 list, and while they were created by automatic tools, they were
 hand-verified by a bunch of different people, all whom names are on the
 patches are reviewers.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'spdx-5.2-rc3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull yet more SPDX updates from Greg KH:
 "Here is another set of reviewed patches that adds SPDX tags to
  different kernel files, based on a set of rules that are being used to
  parse the comments to try to determine that the license of the file is
  "GPL-2.0-or-later" or "GPL-2.0-only". Only the "obvious" versions of
  these matches are included here, a number of "non-obvious" variants of
  text have been found but those have been postponed for later review
  and analysis.

  There is also a patch in here to add the proper SPDX header to a bunch
  of Kbuild files that we have missed in the past due to new files being
  added and forgetting that Kbuild uses two different file names for
  Makefiles. This issue was reported by the Kbuild maintainer.

  These patches have been out for review on the linux-spdx@vger mailing
  list, and while they were created by automatic tools, they were
  hand-verified by a bunch of different people, all whom names are on
  the patches are reviewers"

* tag 'spdx-5.2-rc3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (82 commits)
  treewide: Add SPDX license identifier - Kbuild
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 225
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 224
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 223
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 222
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 221
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 220
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 218
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 217
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 216
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 215
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 214
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 213
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 211
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 210
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 209
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 207
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 203
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201
  ...
2019-05-31 08:34:32 -07:00
Linus Torvalds
2209a3055d Staging/IIO driver fixes for 5.2-rc3
Here are some Staging and IIO driver fixes to resolve some reported
 problems for 5.2-rc3.
 
 Nothing major here, just some tiny changes, full details are in the
 shortlog.
 
 All have been in linux-next for a while with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-5.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging and IIO driver fixes from Greg KH:
 "Here are some Staging and IIO driver fixes to resolve some reported
  problems for 5.2-rc3.

  Nothing major here, just some tiny changes, full details are in the
  shortlog.

  All have been in linux-next for a while with no reported issues"

* tag 'staging-5.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  staging: kpc2000: Add dependency on MFD_CORE to kconfig symbol 'KPC2000'
  staging: wilc1000: Fix some double unlock bugs in wilc_wlan_cleanup()
  staging: vc04_services: prevent integer overflow in create_pagelist()
  Staging: vc04_services: Fix a couple error codes
  staging: wlan-ng: fix adapter initialization failure
  staging: kpc2000: double unlock in error handling in kpc_dma_transfer()
  staging: kpc2000: Fix build error without CONFIG_UIO
  staging: kpc2000: fix build error on xtensa
  staging: erofs: set sb->s_root to NULL when failing from __getname()
  iio: adc: ti-ads8688: fix timestamp is not updated in buffer
  iio: dac: ds4422/ds4424 fix chip verification
  iio: imu: mpu6050: Fix FIFO layout for ICM20602
  iio: adc: ads124: avoid buffer overflow
  iio: adc: modify NPCM ADC read reference voltage
2019-05-31 08:31:45 -07:00
Thomas Gleixner
fda8d26e61 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 177
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>
2019-05-30 11:29:19 -07:00
Thomas Gleixner
80503b23b2 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 149
Based on 1 normalized pattern(s):

  licensed under the gpl 2 or later

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 82 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190524100845.150836982@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:25:18 -07:00
Lorenzo Bianconi
bce0d57db3 iio: imu: st_lsm6dsx: fix PM support for st_lsm6dsx i2c controller
Properly suspend/resume i2c slaves connected to st_lsm6dsx master
controller if the CPU goes in suspended state

Fixes: c91c1c844e ("imu: st_lsm6dsx: add i2c embedded controller support")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-05-27 10:52:30 +01:00
Thomas Gleixner
ec8f24b7fa treewide: Add SPDX license identifier - Makefile/Kconfig
Add SPDX license identifiers to all Make/Kconfig files which:

 - Have no license information of any form

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

  GPL-2.0-only

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-21 10:50:46 +02:00
Greg Kroah-Hartman
083a685c2e First set of IIO fixes for the 5.2 cycle.
* ads124
   - Avoid a buffer overrun when setting an array to 0.
 * ads8688
   - Don't use the pollfunc timestamp as it isn't set and would be wrong
     anyway for a device that does sampling on demand.
 * ds4422
   - Fix masking on register used for chip verification. Wrong address
     was being read.
 * mpu6050
   - Fix the fifo layout for ICM20602 to avoid underreading and hence failure
     to move on to the next record in the fifo.
 * NPCM ADC
   - Make sure there is actually a valid regulator before reading its voltage.
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Merge tag 'iio-fixes-for-5.2a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus:

Jonathan writes:

First set of IIO fixes for the 5.2 cycle.

* ads124
  - Avoid a buffer overrun when setting an array to 0.
* ads8688
  - Don't use the pollfunc timestamp as it isn't set and would be wrong
    anyway for a device that does sampling on demand.
* ds4422
  - Fix masking on register used for chip verification. Wrong address
    was being read.
* mpu6050
  - Fix the fifo layout for ICM20602 to avoid underreading and hence failure
    to move on to the next record in the fifo.
* NPCM ADC
  - Make sure there is actually a valid regulator before reading its voltage.

* tag 'iio-fixes-for-5.2a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio:
  iio: adc: ti-ads8688: fix timestamp is not updated in buffer
  iio: dac: ds4422/ds4424 fix chip verification
  iio: imu: mpu6050: Fix FIFO layout for ICM20602
  iio: adc: ads124: avoid buffer overflow
  iio: adc: modify NPCM ADC read reference voltage
2019-05-20 09:15:14 +02:00
Lorenzo Bianconi
b9fedb0a17 iio: imu: st_lsm6dsx: inline per-sensor data
As it has been already done for other st sensors in 'commit 9049531c91
("iio: accel: st_accel: inline per-sensor data")', get rid of some
defines and just open code the values into the appropriate struct
elements since the semantic meaning is inherent in the name of the
C99-addressable fields and there is no reason to duplicate the code

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-04-22 11:34:14 +01:00
YueHaibing
631bd2f7ec iio: imu: st_lsm6dsx: remove set but not used variables 'acc_sensor' and 'gyro_sensor'
Fixes gcc '-Wunused-but-set-variable' warning:

drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c: In function 'st_lsm6dsx_read_tagged_fifo':
drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c:520:41: warning:
 variable 'gyro_sensor' set but not used [-Wunused-but-set-variable]

drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c:520:28: warning:
 variable 'acc_sensor' set but not used [-Wunused-but-set-variable]

They are not used since commit 14c7c6e1a8 ("iio: imu: st_lsm6dsx: add
st_lsm6dsx_push_tagged_data routine")

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-04-14 13:39:30 +01:00
Steve Moskovchenko
1615fe41a1 iio: imu: mpu6050: Fix FIFO layout for ICM20602
The MPU6050 driver has recently gained support for the
ICM20602 IMU, which is very similar to MPU6xxx. However,
the ICM20602's FIFO data specifically includes temperature
readings, which were not present on MPU6xxx parts. As a
result, the driver will under-read the ICM20602's FIFO
register, causing the same (partial) sample to be returned
for all reads, until the FIFO overflows.

Fix this by adding a table of scan elements specifically
for the ICM20602, which takes the extra temperature data
into consideration.

While we're at it, fix the temperature offset and scaling
on ICM20602, since it uses different scale/offset constants
than the rest of the MPU6xxx devices.

Signed-off-by: Steve Moskovchenko <stevemo@skydio.com>
Fixes: 22904bdff9 ("iio: imu: mpu6050: Add support for the ICM 20602 IMU")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-04-14 11:45:01 +01:00
Lorenzo Bianconi
43901008fd iio: imu: st_lsm6dsx: add support to LSM6DSR
Add support to STM LSM6DSR 6-axis (acc + gyro) Mems sensor
https://www.st.com/resource/en/datasheet/lsm6dsr.pdf

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-04-07 11:29:43 +01:00
Alexandru Ardelean
3cb5161317 iio: imu: adis16400: move adis16400.h into adis16400.c
Final part of the re-organization. Move the `adis16400.h` into
`adis16400.c` since it no longer needs to be shared among other files.

Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-04-04 20:20:28 +01:00
Alexandru Ardelean
5447e3f15c iio: imu: adis16400: rename adis16400_core.c -> adi16400.c
This change does a simple 1-to-1 rename of the adis16400_core.c file. Now
that the `adis16400_buffer.c` file was removed, everything can be moved
into a single driver file.
But first, this rename.

Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-04-04 20:20:27 +01:00
Alexandru Ardelean
0e92e2d036 iio: imu: adis16400: move burst logic to ADIS lib
This change has been done separately, so that it's easier to visualize the
changed logic in the adis_scan_update() function.

Most of the function in this `adis16400_update_scan_mode()` that deals with
burst-mode will be re-used in the ADIS16480, but with different parameters.

Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-04-04 20:20:26 +01:00
Alexandru Ardelean
5075e0720d iio: imu: adis: generalize burst mode support
Some variants in the ADIS16400 family support burst mode. This mechanism is
implemented in the `adis16400_buffer.c` file.

Some variants in ADIS16480 are also adding burst mode, which is
functionally similar to ADIS16400, but with different parameters. To get
there, a `adis_burst` struct is added to parametrize certain bits of the
SPI communication to setup: the register that triggers burst-mode, and the
extra-data-length that needs be accounted for when building the bust-length
buffer.

The trigger handler cannot be made generic, since it's very specific to
each ADIS164XX family.

A future enhancement of this `adis_burst` mode will be the possibility to
enable/disable burst-mode. For the ADIS16400 family it's hard-coded to on
by default. But for ADIS16480 there will be a need to disable this.

When that will be implemented, both ADIS16400 & ADIS16480 will have the
burst-mode enable-able/disable-able.

Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-04-04 20:20:24 +01:00
Alexandru Ardelean
74878d4fa8 iio: imu: adis16400: move trigger handler into adis16400_core
The trigger handler for the ADIS16400 is very different from the generic
one in the ADIS library. Keeping it in a separate file won't make much
sense once the update_scan_mode function will be made more generic and
moved into the ADIS library.

Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-04-04 20:20:23 +01:00
Lorenzo Bianconi
6af0e8a9a7 iio: imu: st_lsm6dsx: add support to LSM6DSOX
Add support to STM LSM6DSOX 6-axis (acc + gyro) Mems sensor
https://www.st.com/resource/en/datasheet/lsm6dsox.pdf

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-04-04 20:20:00 +01:00
Stefan Popa
326e235755 iio: imu: adis16480: Add support for external clock
Inertial sensor data collection and processing can be controlled by
configuring one of the DIOx lines as an external clock input. This
option is available for all devices supported by this driver. However,
only adis1649x devices support different modes for the external clock.

Sync mode is supported by all devices. In this mode, the output data
rate is equal with the clock frequency divided by DEC_RATE + 1. This
mode of calculation is similar with the case when the internal clock is
used.

Pulse Per Second (PPS) Mode, is only supported by adis1649x devices. In
this mode, the output data rate is equal to the product of the external
clock frequency and the scale factor in the SYNC_SCALE register.

This patch uses the "clock-names" property to enable the external clock
in one of the two supported modes: "sync" or "pps". This property is
optional. If it is not specified, the internal clock is used.

This patch also offers the option to select the DIOx line to be used as
an external clock input via the custom "adi,ext-clk-pin" property. If this
field is left empty, DIO2 is assigned as default external clock input pin.
Each DIOx pin supports only one function at a time (data ready line
selection or external clock input).

Signed-off-by: Stefan Popa <stefan.popa@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-04-04 20:19:57 +01:00
Lorenzo Bianconi
3054c4ff28 iio: imu: st_lsm6dsx: add support to ASM330LHH
Add support to STM ASM330LHH 6-axis (acc + gyro) Mems sensor
https://www.st.com/resource/en/datasheet/asm330lhh.pdf

Tested-by: Mario Tesi <mario.tesi@st.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-04-04 20:19:49 +01:00
H. Nikolaus Schaller
28799ceac0 iio: mpu6050: improve code readability
- use temporary variable in get_mount_matrix()
- remove , after { }

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-04-04 20:19:48 +01:00
Andy Shevchenko
fb1589710e iio: Allow to read mount matrix from ACPI
Currently mount matrix is allowed in Device Tree, though there is
no technical issue to extend it to support ACPI.

Convert the function to use device_property_read_string_array() and
thus allow to read mount matrix from ACPI if available.

Example of use in _DSD method:

  Name (_DSD, Package ()
  {
     ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
     Package ()
     {
        Package () { "mount-matrix", Package() {
                "1", "0",     "0",
                "0", "0.866", "0.5",
                "0", "-0.5",  "0.866",
        } },
     }
  })

At the same time drop the "of" prefix from its name and
convert current users.

No functional change intended.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-04-04 20:19:46 +01:00
Stefan Popa
82e7a1b250 iio: imu: adis16480: Add support for ADIS1649x family of devices
The ADIS16495 and ADIS16497 are inertial systems that include a triaxis
gyroscope and a triaxis accelerometer. The serial peripheral interface
(SPI) provide a simple interface for data collection and configuration
control. The devices are similar to ADIS16475, ADIS16480, ADIS16485 and
ADIS16488, the main differences are highlighted below:

* The temperature data scale is 0.00565 C/LSB for ADIS16475 and ADIS1648x
  devices, while for ADIS1649x 0.0125 C/LSB.

* ADIS1649x devices support different gyroscope measurement ranges which
  are dependent on the dash number (-1, -2, -3), see Table 24 in the
  ADIS16495 datasheet. However, the ADIS16497 gyroscopes have the same
  scale as ADIS16495.

* ADIS16495 devices support the acceleration maximum range of 8g, while
  ADIS16497 devices go up to 40g.

* The internal clock for ADIS1649x devices is 4.25 kSPS. The sampling
  frequency is calculated by applying a decimation rate which can take a
  maximum value of 4250.

* ADIS1649x devices support different default filter frequencies.

Datasheets:
Link: https://www.analog.com/media/en/technical-documentation/data-sheets/adis16495.pdf
Link: https://www.analog.com/media/en/technical-documentation/data-sheets/adis16497.pdf

Signed-off-by: Stefan Popa <stefan.popa@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-04-04 20:19:43 +01:00
Stefan Popa
83ec2d5404 iio: imu: adis16480: Deal with filter freq in a generic way
When setting the filter frequency, the driver looks into the
adis16480_def_filter_freqs table for the best match. Pass this table to
the chip_info struct since future devices will need to use a different
table.

Signed-off-by: Stefan Popa <stefan.popa@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-04-04 20:19:43 +01:00
Stefan Popa
e0e6398e1e iio: imu: adis16480: Calculate the sampling frequency in a generic way
The adis1648x devices have an internal clock of 2.46 kSPS. The sampling
frequency is calculated by applying a decimation rate which can take the
maximum value of 2047.

Although all adis1648x devices are similar in this regard, devices that
will use this feature will be added in the future.

Signed-off-by: Stefan Popa <stefan.popa@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-04-04 20:19:43 +01:00
Stefan Popa
6cf7b866bd iio: imu: adis16480: Treat temperature scale in a generic way
All supported devices provide internal temperature measurement from -40 C
to +85 C, with +25 C representing value 0x00.

This patch treats the temperature scale in a generic way, similar to the
accelerometer and gyroscope scales. So far, there are no temperature max
scale differences between the supported devices. However, devices that
will make use of this feature will be added in the future.

Signed-off-by: Stefan Popa <stefan.popa@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-04-04 20:19:42 +01:00
Stefan Popa
304840c476 iio: imu: adis16480: Add OF device ID table
The driver does not have a struct of_device_id table, but supported
devices are registered via Device Trees. This patch adds OF device ID
table.

Signed-off-by: Stefan Popa <stefan.popa@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-04-04 20:19:42 +01:00
Stefan Popa
cede2f899d iio: imu: adis16480: Add support for configurable drdy indicator
The FNCTIO_CTRL register provides configuration control for each I/O pin
(DIO1, DIO2, DIO3 and DIO4).

This patch adds the option to configure each DIOx pin as data ready
indicator with positive or negative polarity by reading the 'interrupts'
and 'interrupt-names' properties from the devicetree. The
'interrupt-names' property is optional, if it is not specified, then the
DIO1 pin is used as default data ready signal.

Although the factory default assigns DIO2 as data ready signal, in the
versions previous this patch, DIO1 pin was used. We should leave this
configuration as is, since some devices might be expecting the interrupt
on the wrong physical pin.

Signed-off-by: Stefan Popa <stefan.popa@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-04-04 20:19:42 +01:00
Martin Kelly
94edaac707 iio:bmi160: use if (ret) instead of if (ret < 0)
We are using "if (ret < 0)" in many places in which the function returns 0
on success. Use "if (ret)" instead for better clarity and correctness.

Signed-off-by: Martin Kelly <martin@martingkelly.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-02-09 15:25:25 +00:00
Martin Kelly
0a3f50e4d6 iio:bmi160: use iio_pollfunc_store_time
Currently, we snap the timestamp after reading from the buffer and
processing the event. When the IIO poll function is triggered by an
interrupt,  we can get a slightly more accurate timestamp by snapping it
prior to reading the data, since the data was already generated prior to
entering the trigger handler. This is not going to make a huge difference,
but we might as well improve slightly.

Do this by using iio_pollfunc_store_time as other drivers do.

Signed-off-by: Martin Kelly <martin@martingkelly.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-02-09 15:24:27 +00:00
Martin Kelly
895bf81e6b iio:bmi160: add drdy interrupt support
Add interrupt support for the data ready signal on the BMI160, which fires
an interrupt whenever new accelerometer/gyroscope data is ready to read.

Signed-off-by: Martin Kelly <martin@martingkelly.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-02-09 15:14:42 +00:00
Martin Kelly
3740232925 iio:bmi160: add SPDX identifiers
Add SPDX identifiers (GPL 2) for the BMI160 driver. bmi160.h had an
identifier, but the other files did not.

Signed-off-by: Martin Kelly <martin@martingkelly.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-02-09 14:48:33 +00:00
Greg Kroah-Hartman
1dcc3ed4a7 First set of new device support, features and cleanup for IIO in the 5.1 cycle
A number of interesting new devices supported plus a good set of staging
 cleanup including one graduation and one drop.
 
 New device support
 * ad56886
   - Add support for AD5674R/AD5679R with some minor driver changes to support
     more channels.
 * ad7768
   - New driver and dt bindings for this 24 bit ADC.
 * max44009
   - New driver and dt bindings for this ambient light sensor.
 * mpu6050
   - Support the ICM 20602 IMU. Minor tweaks due to slightly different
     register map.
 * NPCM adc
   - New driver and dt bindings for this BMC ADC.
 * Sensiron SGP30
   - Modifiers for ethanol and H2.
   - New driver and dt bindings.
   - Follow patch added self cleaning support.
 * Sensiron SPS30
   - New channel type for mass concentration.
   - New driver and bindings.
   - Minor tidy up patch followed (drop fmt specifier as unused)
 * st_pressure
   - lps22hh support. ID plus information structures and dt bindings.
 * ti-ads124s08
   - Add binding doc and driver.
 
 Staging graduations
 * ad7606 driver and bindings.
 
 Staging drops
 * ad7152 CDC driver dropped.  This part is near EoL and no one is known
   to be using it.  If anyone surfaces obviously we can bring the driver
   back.  If not, good to drop it to avoid wasting anyone's time cleaning
   it up.
 
 New features
 * bme680
   - DT support and bindings doc.
 * isl29018
   - Add regulator for VCC.
 * mag3110
   - Add regulators for supplies.
 * meson-saradc
   - Support the temperature sensors of more SoCs.
 * mma8452
   - Add regulators for power suplies and binding docs to reflect them.
 * st-accel
   - Support the undocumented but it seems fairly common _ONT ACPI method
     to specify orientation of the sensor.
 
 Cleanup, minor fixes and fixes for staging driver that have been broken a
 long time
 * ad5933
   - Drop platform data alternative to specifying the reference voltage
     using a regulator.
   - Use the clock framework to contorl the reference clock.
   - Add a DT binding doc to cover the defacto binding.
 * ad7280a
   - Split up some big functions to improve readability.
 * ad7606
   - Allow for timeout if interrupt never occurs.
   - Use devm functions to simplify probe and remove.
   - Use the find_closest macro to avoid need for precise values from
     userspace.
   - Add missing vendor prefixes for various DT properties. Note the
     driver is in staging still and there are no known devicetrees.
   - Add explict OF device ID table.
   - Simplify the Kconfig choices
   - Change to a threaded IRQ.
   - SPDX and simple stype fixes.
 * ad7816
   - Drop unnecessary variable init.
 * ad9523
   - Check a return value that was ignored.
 * ad9833
   - Drop platform data.  It was just setting most values to the hardware
     defaults.
   - Use the clock framework to provide the input clock.
 * adt7316 (lots of staging cleanup)
   - Fix some wrong register / bit definitions
   - Invert the logic of the check for an ldac pin so it actually makes sense.
   - Read the right register to get internal vref settings
   - Allow adt751x chips to use the internal vref for all DAC channels rather
     than a subset.
   - Remove dac vref bypass control from parts that don't have one.
   - Make the store DAC update mode function consistent with the show one.
   - Fix some spellings and other minor tidy up.
   - Avoid passing irq numbers around by putting all the irq logic in
     one place.
   - Fix an issue with the resolution of DAC control.
   - Fix support of the high resolution DAC mode (for temp proportional output)
     where supported.
   - Fix DAC read and write calculations.
 * st_lsm6dsx
   - Drop an unused variable (set but not read)
 * xilinx-xadc
   - Check an unhandled return value.
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Merge tag 'iio-for-5.1a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

First set of new device support, features and cleanup for IIO in the 5.1 cycle

A number of interesting new devices supported plus a good set of staging
cleanup including one graduation and one drop.

New device support
* ad56886
  - Add support for AD5674R/AD5679R with some minor driver changes to support
    more channels.
* ad7768
  - New driver and dt bindings for this 24 bit ADC.
* max44009
  - New driver and dt bindings for this ambient light sensor.
* mpu6050
  - Support the ICM 20602 IMU. Minor tweaks due to slightly different
    register map.
* NPCM adc
  - New driver and dt bindings for this BMC ADC.
* Sensiron SGP30
  - Modifiers for ethanol and H2.
  - New driver and dt bindings.
  - Follow patch added self cleaning support.
* Sensiron SPS30
  - New channel type for mass concentration.
  - New driver and bindings.
  - Minor tidy up patch followed (drop fmt specifier as unused)
* st_pressure
  - lps22hh support. ID plus information structures and dt bindings.
* ti-ads124s08
  - Add binding doc and driver.

Staging graduations
* ad7606 driver and bindings.

Staging drops
* ad7152 CDC driver dropped.  This part is near EoL and no one is known
  to be using it.  If anyone surfaces obviously we can bring the driver
  back.  If not, good to drop it to avoid wasting anyone's time cleaning
  it up.

New features
* bme680
  - DT support and bindings doc.
* isl29018
  - Add regulator for VCC.
* mag3110
  - Add regulators for supplies.
* meson-saradc
  - Support the temperature sensors of more SoCs.
* mma8452
  - Add regulators for power suplies and binding docs to reflect them.
* st-accel
  - Support the undocumented but it seems fairly common _ONT ACPI method
    to specify orientation of the sensor.

Cleanup, minor fixes and fixes for staging driver that have been broken a
long time
* ad5933
  - Drop platform data alternative to specifying the reference voltage
    using a regulator.
  - Use the clock framework to contorl the reference clock.
  - Add a DT binding doc to cover the defacto binding.
* ad7280a
  - Split up some big functions to improve readability.
* ad7606
  - Allow for timeout if interrupt never occurs.
  - Use devm functions to simplify probe and remove.
  - Use the find_closest macro to avoid need for precise values from
    userspace.
  - Add missing vendor prefixes for various DT properties. Note the
    driver is in staging still and there are no known devicetrees.
  - Add explict OF device ID table.
  - Simplify the Kconfig choices
  - Change to a threaded IRQ.
  - SPDX and simple stype fixes.
* ad7816
  - Drop unnecessary variable init.
* ad9523
  - Check a return value that was ignored.
* ad9833
  - Drop platform data.  It was just setting most values to the hardware
    defaults.
  - Use the clock framework to provide the input clock.
* adt7316 (lots of staging cleanup)
  - Fix some wrong register / bit definitions
  - Invert the logic of the check for an ldac pin so it actually makes sense.
  - Read the right register to get internal vref settings
  - Allow adt751x chips to use the internal vref for all DAC channels rather
    than a subset.
  - Remove dac vref bypass control from parts that don't have one.
  - Make the store DAC update mode function consistent with the show one.
  - Fix some spellings and other minor tidy up.
  - Avoid passing irq numbers around by putting all the irq logic in
    one place.
  - Fix an issue with the resolution of DAC control.
  - Fix support of the high resolution DAC mode (for temp proportional output)
    where supported.
  - Fix DAC read and write calculations.
* st_lsm6dsx
  - Drop an unused variable (set but not read)
* xilinx-xadc
  - Check an unhandled return value.

* tag 'iio-for-5.1a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (67 commits)
  iio: chemical: sps30: remove printk format specifier
  staging: iio: frequency: ad9833: Load clock using clock framework
  staging: iio: frequency: ad9833: Get frequency value statically
  dt-bindings: iio: light: Add max44009
  iio: light: add driver for MAX44009
  dt-bindings: iio: adc: Add docs for AD7768-1
  iio: adc: Add AD7768-1 ADC basic support
  staging: iio: cdc: ad7152: remove driver completely
  iio: imu: mpu6050: Add support for the ICM 20602 IMU
  dt-bindings: iio: imu: add icm20602 bindings to mpu6050
  dt-bindings: iio: pressure: add LPS22HH bindings
  iio: st_accel: use ACPI orientation data
  iio: adc: add NPCM ADC driver
  dt-binding: iio: add NPCM ADC documentation
  iio: chemical: sps30: allow changing self cleaning period
  dt-bindings: iio: chemical: Add bindings for bme680
  iio: chemical: bme680: Add device-tree support
  iio:st_pressure:initial lps22hh sensor support
  iio: accell: mma8452: add vdd/vddio regulator operation support
  dt-bindings: iio: accel: mma8452: add power supplies property
  ...
2019-02-04 07:06:36 +01:00
Randolph Maaßen
22904bdff9 iio: imu: mpu6050: Add support for the ICM 20602 IMU
The Invensense ICM-20602 is a 6-axis MotionTracking device that
combines a 3-axis gyroscope and an 3-axis accelerometer. It is very
similar to the ICM-20608 imu which is already supported by the mpu6050
driver. The main difference is that the ICM-20602 has the i2c bus
disable bit in a separate register.

Signed-off-by: Randolph Maaßen <gaireg@gaireg.de>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-02-02 09:52:21 +00:00