Commit graph

3780 commits

Author SHA1 Message Date
Linus Torvalds
63de37476e chrome platform changes for v5.5
* CrOS EC / MFD / IIO
  - Contains tag-ib-chrome-mfd-iio-input-5.5, which is the first part of a
    series from Gwendal to refactor sensor code between MFD, CrOS EC, iio
    and input in order to add a new sensorhub driver and FIFO processing
 
 * Wilco EC:
  - Add support for Dell's USB PowerShare policy control, keyboard
    backlight LED driver, and a new test_event file.
  - Fixes use after free in wilco_ec's telemetry driver.
 
 * Misc:
  - bugfix in cros_usbpd_logger (missing destroy workqueue).
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Merge tag 'tag-chrome-platform-for-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux

Pull chrome platform changes from Benson Leung:
 "CrOS EC / MFD / IIO:

   - Contains tag-ib-chrome-mfd-iio-input-5.5, which is the first part
     of a series from Gwendal to refactor sensor code between MFD, CrOS
     EC, iio and input in order to add a new sensorhub driver and FIFO
     processing

  Wilco EC:

   - Add support for Dell's USB PowerShare policy control, keyboard
     backlight LED driver, and a new test_event file.

   - Fixes use after free in wilco_ec's telemetry driver.

  Misc:

   - bugfix in cros_usbpd_logger (missing destroy workqueue)"

* tag 'tag-chrome-platform-for-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux:
  platform/chrome: wilco_ec: fix use after free issue
  platform/chrome: cros_ec: Add Kconfig default for cros-ec-sensorhub
  Revert "Input: cros_ec_keyb: mask out extra flags in event_type"
  Revert "Input: cros_ec_keyb - add back missing mask for event_type"
  platform/chrome: cros_ec: handle MKBP more events flag
  platform/chrome: cros_ec: Do not attempt to register a non-positive IRQ number
  platform/chrome: cros-ec: Record event timestamp in the hard irq
  mfd / platform / iio: cros_ec: Register sensor through sensorhub
  iio / platform: cros_ec: Add cros-ec-sensorhub driver
  mfd / platform: cros_ec: Add sensor_count and make check_features public
  platform/chrome: cros_ec: Put docs with the code
  platform/chrome: cros_usbpd_logger: add missed destroy_workqueue in remove
  platform/chrome: cros_ec: Fix Kconfig indentation
  platform/chrome: wilco_ec: Add keyboard backlight LED support
  platform/chrome: wilco_ec: Add charging config driver
  platform/chrome: wilco_ec: Add Dell's USB PowerShare Policy control
  platform/chrome: wilco_ec: Add debugfs test_event file
2019-12-03 14:37:12 -08:00
Linus Torvalds
0da522107e compat_ioctl: remove most of fs/compat_ioctl.c
As part of the cleanup of some remaining y2038 issues, I came to
 fs/compat_ioctl.c, which still has a couple of commands that need support
 for time64_t.
 
 In completely unrelated work, I spent time on cleaning up parts of this
 file in the past, moving things out into drivers instead.
 
 After Al Viro reviewed an earlier version of this series and did a lot
 more of that cleanup, I decided to try to completely eliminate the rest
 of it and move it all into drivers.
 
 This series incorporates some of Al's work and many patches of my own,
 but in the end stops short of actually removing the last part, which is
 the scsi ioctl handlers. I have patches for those as well, but they need
 more testing or possibly a rewrite.
 
 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'compat-ioctl-5.5' of git://git.kernel.org:/pub/scm/linux/kernel/git/arnd/playground

Pull removal of most of fs/compat_ioctl.c from Arnd Bergmann:
 "As part of the cleanup of some remaining y2038 issues, I came to
  fs/compat_ioctl.c, which still has a couple of commands that need
  support for time64_t.

  In completely unrelated work, I spent time on cleaning up parts of
  this file in the past, moving things out into drivers instead.

  After Al Viro reviewed an earlier version of this series and did a lot
  more of that cleanup, I decided to try to completely eliminate the
  rest of it and move it all into drivers.

  This series incorporates some of Al's work and many patches of my own,
  but in the end stops short of actually removing the last part, which
  is the scsi ioctl handlers. I have patches for those as well, but they
  need more testing or possibly a rewrite"

* tag 'compat-ioctl-5.5' of git://git.kernel.org:/pub/scm/linux/kernel/git/arnd/playground: (42 commits)
  scsi: sd: enable compat ioctls for sed-opal
  pktcdvd: add compat_ioctl handler
  compat_ioctl: move SG_GET_REQUEST_TABLE handling
  compat_ioctl: ppp: move simple commands into ppp_generic.c
  compat_ioctl: handle PPPIOCGIDLE for 64-bit time_t
  compat_ioctl: move PPPIOCSCOMPRESS to ppp_generic
  compat_ioctl: unify copy-in of ppp filters
  tty: handle compat PPP ioctls
  compat_ioctl: move SIOCOUTQ out of compat_ioctl.c
  compat_ioctl: handle SIOCOUTQNSD
  af_unix: add compat_ioctl support
  compat_ioctl: reimplement SG_IO handling
  compat_ioctl: move WDIOC handling into wdt drivers
  fs: compat_ioctl: move FITRIM emulation into file systems
  gfs2: add compat_ioctl support
  compat_ioctl: remove unused convert_in_user macro
  compat_ioctl: remove last RAID handling code
  compat_ioctl: remove /dev/raw ioctl translation
  compat_ioctl: remove PCI ioctl translation
  compat_ioctl: remove joystick ioctl translation
  ...
2019-12-01 13:46:15 -08:00
Linus Torvalds
0dd09bc02c Staging / IIO patches for 5.5-rc1
Here is the big staging and iio set of patches for the 5.5-rc1 release.
 
 It's the usual huge collection of cleanup patches all over the
 drivers/staging/ area, along with a new staging driver, and a bunch of
 new IIO drivers as well.
 
 Full details are in the shortlog, but all of these have been in
 linux-next for a long time with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging / iio updates from Greg KH:
 "Here is the big staging and iio set of patches for the 5.5-rc1
  release.

  It's the usual huge collection of cleanup patches all over the
  drivers/staging/ area, along with a new staging driver, and a bunch of
  new IIO drivers as well.

  Full details are in the shortlog, but all of these have been in
  linux-next for a long time with no reported issues"

* tag 'staging-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (548 commits)
  staging: vchiq: Have vchiq_dump_* functions return an error code
  staging: vchiq: Refactor indentation in vchiq_dump_* functions
  staging: fwserial: Fix Kconfig indentation (seven spaces)
  staging: vchiq_dump: Replace min with min_t
  staging: vchiq: Fix block comment format in vchiq_dump()
  staging: octeon: indent with tabs instead of spaces
  staging: comedi: usbduxfast: usbduxfast_ai_cmdtest rounding error
  staging: most: core: remove sysfs attr remove_link
  staging: vc04: Fix Kconfig indentation
  staging: pi433: Fix Kconfig indentation
  staging: nvec: Fix Kconfig indentation
  staging: most: Fix Kconfig indentation
  staging: fwserial: Fix Kconfig indentation
  staging: fbtft: Fix Kconfig indentation
  fbtft: Drop OF dependency
  fbtft: Make use of device property API
  fbtft: Drop useless #ifdef CONFIG_OF and dead code
  fbtft: Describe function parameters in kernel-doc
  fbtft: Make sure string is NULL terminated
  staging: rtl8723bs: remove set but not used variable 'change', 'pos'
  ...
2019-11-27 10:57:52 -08:00
Linus Torvalds
8f56e4ebe0 Char/Misc driver patches for 5.5-rc1
Here is the big set of char/misc and other driver patches for 5.5-rc1
 
 Loads of different things in here, this feels like the catch-all of
 driver subsystems these days.  Full details are in the shortlog, but
 nothing major overall, just lots of driver updates and additions.
 
 All of these 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 'char-misc-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver updates from Greg KH:
 "Here is the big set of char/misc and other driver patches for 5.5-rc1

  Loads of different things in here, this feels like the catch-all of
  driver subsystems these days. Full details are in the shortlog, but
  nothing major overall, just lots of driver updates and additions.

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

* tag 'char-misc-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (198 commits)
  char: Fix Kconfig indentation, continued
  habanalabs: add more protection of device during reset
  habanalabs: flush EQ workers in hard reset
  habanalabs: make the reset code more consistent
  habanalabs: expose reset counters via existing INFO IOCTL
  habanalabs: make code more concise
  habanalabs: use defines for F/W files
  habanalabs: remove prints on successful device initialization
  habanalabs: remove unnecessary checks
  habanalabs: invalidate MMU cache only once
  habanalabs: skip VA block list update in reset flow
  habanalabs: optimize MMU unmap
  habanalabs: prevent read/write from/to the device during hard reset
  habanalabs: split MMU properties to PCI/DRAM
  habanalabs: re-factor MMU masks and documentation
  habanalabs: type specific MMU cache invalidation
  habanalabs: re-factor memory module code
  habanalabs: export uapi defines to user-space
  habanalabs: don't print error when queues are full
  habanalabs: increase max jobs number to 512
  ...
2019-11-27 10:53:50 -08:00
Linus Torvalds
00074a7007 power supply and reset changes for the v5.5 series
Drivers:
  * test_power: add support for current and charge_counter
  * cpcap-charger: improve charge calculation and limit default charge voltage
  * ab8500: convert to IIO
  * misc. small fixes all over drivers
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Merge tag 'for-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply

Pull power supply and reset updates from Sebastian Reichel:

 - test_power: add support for current and charge_counter

 - cpcap-charger: improve charge calculation and limit default charge
   voltage

 - ab8500: convert to IIO

 - misc small fixes all over drivers

* tag 'for-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (29 commits)
  power: supply: bd70528: Add MODULE_ALIAS to allow module auto loading
  power: supply: ab8500_charger: Fix inconsistent IS_ERR and PTR_ERR
  power: supply: cpcap-charger: cpcap_charger_voltage_to_regval() can be static
  power: supply: cpcap-battery: Add basic coulomb counter calibrate support
  power: supply: cpcap-battery: Read and save integrator register CCI
  power: supply: cpcap-battery: Simplify short term power average calculation
  power: supply: cpcap-battery: Simplify coulomb counter calculation with div_s64
  power: supply: cpcap-battery: Move coulomb counter units per lsb to ddata
  power: supply: cpcap-charger: Allow changing constant charge voltage
  power: supply: cpcap-battery: Fix handling of lowered charger voltage
  power: supply: cpcap-charger: Improve battery detection
  power: supply: cpcap-battery: Check voltage before orderly_poweroff
  power: supply: cpcap-charger: Limit voltage to 4.2V for battery
  power: supply: ab8500: Handle invalid IRQ from platform_get_irq_byname()
  power: supply: ab8500_fg: Do not free non-requested IRQs in probe's error path
  power: supply: ab8500: Cleanup probe in reverse order
  power: reset: at91: fix __le32 cast in reset code
  power: supply: abx500_chargalg: Fix code indentation
  mfd: Switch the AB8500 GPADC to IIO
  iio: adc: New driver for the AB8500 GPADC
  ...
2019-11-27 09:55:39 -08:00
Mark Brown
ca4196aa10
Merge branch 'spi-5.5' into spi-next 2019-11-22 19:56:35 +00:00
Gwendal Grignou
d60ac88a62 mfd / platform / iio: cros_ec: Register sensor through sensorhub
Remove the duplicated code in MFD, since MFD just registers cros-ec-sensorhub
if at least one sensor is present.

Change IIO cros-ec driver to get the pointer to the cros-ec-dev through
cros-ec-sensorhub.

Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
2019-11-21 11:23:14 +01:00
Gwendal Grignou
5306747118 iio / platform: cros_ec: Add cros-ec-sensorhub driver
Similar to HID sensor stack, the new driver sits between cros-ec-dev
and the IIO device drivers:

The EC based IIO device topology would be:

iio:device1 ->
   ...0/0000:00:1f.0/PNP0C09:00/GOOG0004:00/cros-ec-dev.6.auto/
                                            cros-ec-sensorhub.7.auto/
                                            cros-ec-accel.15.auto/
                                            iio:device1

It will be expanded to control EC sensor FIFO.

Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
[Fix "unknown type name 'uint32_t'" type errors]
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
2019-11-21 11:23:14 +01:00
Greg Kroah-Hartman
8bde9f3d2a Third set of IIO new device support cleanups and fixes for the 5.5 cycle.
New device support
 * ad5446
   - Support the ad5600 DAC (id only needed).
 * ad7292 ADC DAC etc
   - New driver plus dt-bindings.
 * veml6030 ambient light sensor
   - New driver plus dt-bindings and sysfs docs.
 
 Features
 * mpu6050
   - Explicit VDD control.
 * stm32-adc
   - Allow limiting of max clock frequency from devicetree to ensure it's
     suitable for external circuitry.
 
 yaml binding conversions
 * ltc1660
 * mcp3911
 
 Fixes
 * adis16480
   - Fix wrong scale factors.
   - Fix debugfs reg access by providing the callback.
 * cros_ec_baro
   - Fixing missing mask entry to make available sample frequencies visible
     in sysfs.
 * st_lsm6dsx
   - Explicitly handle different ODR table sizes.
   - Handle restrictions between slave ODR and accel ODR when
     both are enabled.
   - Allow ODR to be expressed more accurately by using miliHz.
 * tools
   - Fix an issue with parallel builds.
 
 Cleanups and warning fixes
 * adis16136, adis16400, adis16460, adis-lib
   - Change some checks on return values to be for 0 rather than strictly
     negative. Avoids some fiddly issues with the compiler concluding some
     variables are initialized due to a mixture of error checks.
   - Assign values only on success of 'read' operations - avoiding any
     chance the compiler will falsly suggest they might be used uninitialized.
   - Whitespace and simlar cleanups.
 * aspeed adc
   - devm_platfom_ioremap_resource to reduce boilerplate.
 * bcm-iproc-adc
   - Stray semicolon removal.
 * cc10001
   - devm_platfom_ioremap_resource to reduce boilerplate.
 * dln2-adc
   - Reorganise the buffered mode setup and tear down. Part of moving towards
     being able to refactor this area of the IIO core.
 * hdc100x
   - Reorganise the buffered mode setup and tear down.
 * ingenic-adc
   - devm_platfom_ioremap_resource to reduce boilerplate.
 * lpc18xx-adc
   - devm_platfom_ioremap_resource to reduce boilerplate.
 * lpc18xx-dac
   - devm_platfom_ioremap_resource to reduce boilerplate.
 * mt6577
   - devm_platfom_ioremap_resource to reduce boilerplate.
 * npcm
   - devm_platfom_ioremap_resource to reduce boilerplate.
 * rcar-gyroadc
   - devm_platfom_ioremap_resource to reduce boilerplate.
 * spear-adc
   - devm_platfom_ioremap_resource to reduce boilerplate.
 * vf610-adc
   - devm_platfom_ioremap_resource to reduce boilerplate.
 * vf610-dac
   - devm_platfom_ioremap_resource to reduce boilerplate.
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Merge tag 'iio-for-5.5c' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

Third set of IIO new device support cleanups and fixes for the 5.5 cycle.

New device support
* ad5446
  - Support the ad5600 DAC (id only needed).
* ad7292 ADC DAC etc
  - New driver plus dt-bindings.
* veml6030 ambient light sensor
  - New driver plus dt-bindings and sysfs docs.

Features
* mpu6050
  - Explicit VDD control.
* stm32-adc
  - Allow limiting of max clock frequency from devicetree to ensure it's
    suitable for external circuitry.

yaml binding conversions
* ltc1660
* mcp3911

Fixes
* adis16480
  - Fix wrong scale factors.
  - Fix debugfs reg access by providing the callback.
* cros_ec_baro
  - Fixing missing mask entry to make available sample frequencies visible
    in sysfs.
* st_lsm6dsx
  - Explicitly handle different ODR table sizes.
  - Handle restrictions between slave ODR and accel ODR when
    both are enabled.
  - Allow ODR to be expressed more accurately by using miliHz.
* tools
  - Fix an issue with parallel builds.

Cleanups and warning fixes
* adis16136, adis16400, adis16460, adis-lib
  - Change some checks on return values to be for 0 rather than strictly
    negative. Avoids some fiddly issues with the compiler concluding some
    variables are initialized due to a mixture of error checks.
  - Assign values only on success of 'read' operations - avoiding any
    chance the compiler will falsly suggest they might be used uninitialized.
  - Whitespace and simlar cleanups.
* aspeed adc
  - devm_platfom_ioremap_resource to reduce boilerplate.
* bcm-iproc-adc
  - Stray semicolon removal.
* cc10001
  - devm_platfom_ioremap_resource to reduce boilerplate.
* dln2-adc
  - Reorganise the buffered mode setup and tear down. Part of moving towards
    being able to refactor this area of the IIO core.
* hdc100x
  - Reorganise the buffered mode setup and tear down.
* ingenic-adc
  - devm_platfom_ioremap_resource to reduce boilerplate.
* lpc18xx-adc
  - devm_platfom_ioremap_resource to reduce boilerplate.
* lpc18xx-dac
  - devm_platfom_ioremap_resource to reduce boilerplate.
* mt6577
  - devm_platfom_ioremap_resource to reduce boilerplate.
* npcm
  - devm_platfom_ioremap_resource to reduce boilerplate.
* rcar-gyroadc
  - devm_platfom_ioremap_resource to reduce boilerplate.
* spear-adc
  - devm_platfom_ioremap_resource to reduce boilerplate.
* vf610-adc
  - devm_platfom_ioremap_resource to reduce boilerplate.
* vf610-dac
  - devm_platfom_ioremap_resource to reduce boilerplate.

* tag 'iio-for-5.5c' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (43 commits)
  iio: adis16480: Add debugfs_reg_access entry
  iio: adis16480: Fix scales factors
  tools: iio: Correctly add make dependency for iio_utils
  iio: adc: Add driver support for AD7292
  dt-bindings: iio: adc: Add dt-schema for AD7292
  dt-bindings: iio: adc: Migrate MCP3911 documentation to yaml
  iio: imu: mpu6050: Add support for vdd-supply regulator
  dt-bindings: iio: imu: mpu6050: add vdd-supply
  iio: cros_ec_baro: set info_mask_shared_by_all_available field
  iio: dac: ad5446: Add support for new AD5600 DAC
  dt-bindings: iio: dac: Migrate LTC1660 documentation to yaml
  iio: documentation: light: Add veml6030 sysfs documentation
  dt-bindings: iio: light: add veml6030 ALS bindings
  iio: light: add driver for veml6030 ambient light sensor
  iio: imu: st_lsm6dsx: express odr in mHZ
  iio: imu: st_lsm6dsx: fix ODR check in st_lsm6dsx_write_raw
  iio: imu: st_lsm6dsx: explicitly define odr table size
  iio: adc: stm32: allow to tune analog clock
  dt-bindings: iio: stm32-adc: add max clock rate property
  iio: dac: vf610: Use devm_platform_ioremap_resource
  ...
2019-11-13 19:24:42 +08:00
Nuno Sá
4c35b7a51e iio: adis16480: Add debugfs_reg_access entry
The driver is defining debugfs entries by calling
`adis16480_debugfs_init()`. However, those entries are attached to the
iio_dev debugfs entry which won't exist if no debugfs_reg_access
callback is provided.

Fixes: 2f3abe6cbb ("iio:imu: Add support for the ADIS16480 and similar IMUs")
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-11-11 18:38:13 +00:00
Nuno Sá
49549cb23a iio: adis16480: Fix scales factors
This patch fixes the scales for the gyroscope, accelerometer and
barometer. The pressure scale was just wrong. For the others, the scale
factors were not taking into account that a 32bit word is being read
from the device.

Fixes: 7abad1063d ("iio: adis16480: Fix scale factors")
Fixes: 82e7a1b250 ("iio: imu: adis16480: Add support for ADIS1649x family of devices")
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-11-11 18:38:03 +00:00
Greg Kroah-Hartman
01b59c763f Merge 5.4-rc7 into char-misc-next
We need the char/misc driver fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-11 06:24:30 +01:00
Greg Kroah-Hartman
f0cb9b5dfd Merge 5.4-rc7 into staging-next
We want the staging fixes in here, and it resolves some merge issues.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-11 06:23:37 +01:00
Marcelo Schmitt
506d2e317a iio: adc: Add driver support for AD7292
The AD7292 is a 10-bit monitor and control system with ADC, DACs,
temperature sensor, and GPIOs.

Configure AD7292 devices in direct access mode, enabling single-ended
ADC readings.

Datasheet:
Link: https://www.analog.com/media/en/technical-documentation/data-sheets/ad7292.pdf

Signed-off-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-11-10 17:09:36 +00:00
Stephan Gerhold
26a0ffeed9 iio: imu: mpu6050: Add support for vdd-supply regulator
MPU6050 has two power supply pins: VDD and VLOGIC, but the
mpu6050 driver only supports enabling one of them at the moment.
In some cases, they may need to be enabled separately.

Add an additional "vdd-supply" that stays enabled for as long as
the driver is loaded. We cannot turn off the VDD regulator during
suspend as this would cause register settings (FSR, sampling rate, ...)
to be lost.

Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Reviewed-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-11-10 16:00:34 +00:00
Gwendal Grignou
e9a4cbcaaa iio: cros_ec_baro: set info_mask_shared_by_all_available field
Field was already set for light/proximity and
accelerometer/gyroscope/magnetometer sensors.

Fixes: ae7b02ad2f ("iio: common: cros_ec_sensors: Expose cros_ec_sensors frequency range via iio sysfs")
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-11-10 16:00:33 +00:00
Stefan Popa
6376cbe549 iio: dac: ad5446: Add support for new AD5600 DAC
The AD5600 is a single channel, 16-bit resolution, voltage output digital
to analog converter (DAC). The AD5600 uses a 3-wire SPI interface. It is
part of the AD5541 family of DACs.

The ad5446 IIO driver implements support for some of these DACs (in the
AD5441 family), so the change is a simple entry in this driver.

Link: https://www.analog.com/media/en/technical-documentation/data-sheets/AD5600.pdf

Signed-off-by: Stefan Popa <stefan.popa@analog.com>
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-11-10 15:14:06 +00:00
Rishi Gupta
7b779f573c iio: light: add driver for veml6030 ambient light sensor
veml6030 is an ambient light sensor from Vishay semiconductors.
It has 16-bit resolution, supports both ambient light measurement
and white channel which is more responsive to wider wavelength
spectrum. It has flexible power saving, integration time and
gain options. Communication with host is over I2C.

Signed-off-by: Rishi Gupta <gupt21@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-11-10 10:39:33 +00:00
Lorenzo Bianconi
f8710f0357 iio: imu: st_lsm6dsx: express odr in mHZ
Express available frequencies in mHZ in order to support even
rational ODRs. This patch is need to fix an Android CTS failure

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-11-09 13:23:17 +00:00
Lorenzo Bianconi
fc3f6ad7f5 iio: imu: st_lsm6dsx: fix ODR check in st_lsm6dsx_write_raw
Since st_lsm6dsx i2c master controller relies on accel device as trigger
and slave devices can run at different ODRs we must select an accel_odr >=
slave_odr. Report real accel ODR in st_lsm6dsx_check_odr() in order to
properly set sensor frequency in st_lsm6dsx_write_raw and avoid to
report unsupported frequency

Fixes: 6ffb55e500 ("iio: imu: st_lsm6dsx: introduce ST_LSM6DSX_ID_EXT sensor ids")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-11-09 13:17:15 +00:00
Lorenzo Bianconi
59af4e2063 iio: imu: st_lsm6dsx: explicitly define odr table size
Introduce odr_len in st_lsm6dsx_odr_table_entry data structure in order
to explicitly define odr table size and support devices with different
odr table map

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-11-09 13:10:59 +00:00
Fabrice Gasnier
cb7e1b50e4 iio: adc: stm32: allow to tune analog clock
Add new optional dt property to tune analog clock prescaler.
Driver looks for optional "st,max-clk-rate-hz", then computes
best approximation below that rate, using ADC internal prescaler.

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-11-09 12:37:18 +00:00
Jonathan Cameron
2969c51e3a iio: dac: vf610: Use devm_platform_ioremap_resource
Reduce local boilerplate.
Suggested by coccinelle

CHECK   drivers/iio/dac/vf610_dac.c
drivers/iio/dac/vf610_dac.c:189:1-11: WARNING: Use devm_platform_ioremap_resource for info -> regs

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Cc: Sanchayan Maity <maitysanchayan@gmail.com>
2019-11-09 12:32:00 +00:00
Jonathan Cameron
29ec12e29f iio: dac: lpc18xx: Use devm_platform_ioremap_resource
Reduce boilerplate.
Suggested by coccinelle
  CHECK   drivers/iio/dac/lpc18xx_dac.c
drivers/iio/dac/lpc18xx_dac.c:121:1-10: WARNING: Use devm_platform_ioremap_resource for dac -> base

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
CC: Joachim Eastwood <manabian@gmail.com>
2019-11-09 12:30:17 +00:00
Jonathan Cameron
afac22e3cf iio: adc: vf610: use devm_platform_ioremap_resource
Reduces boilerplate.

Suggested by coccinelle
CHECK   drivers/iio/adc/vf610_adc.c
drivers/iio/adc/vf610_adc.c:819:1-11: WARNING: Use devm_platform_ioremap_resource for info -> regs

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Cc: Fugang Duan <b38611@freescale.com>
2019-11-09 12:28:21 +00:00
Jonathan Cameron
e8ad78658e iio: adc: spear_adc: Use devm_platform_ioremap_resource
Avoids local boilerplate doing the same thing.
Suggested by coccinelle

CHECK   drivers/iio/adc/spear_adc.c
drivers/iio/adc/spear_adc.c:283:1-22: WARNING: Use devm_platform_ioremap_resource for st -> adc_base_spear6xx

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
2019-11-09 12:26:56 +00:00
Jonathan Cameron
6c78cc9c4a iio: adc: rcar-gyroadc: use devm_platform_ioremap_resource
Avoids some local boilerplate.
Suggested by coccinelle.

CHECK   drivers/iio/adc/rcar-gyroadc.c
drivers/iio/adc/rcar-gyroadc.c:495:1-11: WARNING: Use devm_platform_ioremap_resource for priv -> regs

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Cc: Marek Vasut <marek.vasut+renesas@gmail.com>
2019-11-09 12:24:55 +00:00
Jonathan Cameron
08cf48c7fa iio: adc: npcm: use devm_platform_ioremap_resource
Reduces local boilerplate code.
Suggested by coccinelle via coccicheck.

CHECK   drivers/iio/adc/npcm_adc.c
drivers/iio/adc/npcm_adc.c:200:1-11: WARNING: Use devm_platform_ioremap_resource for info -> regs

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Cc: Tomer Maimon <tmaimon77@gmail.com>
2019-11-09 12:22:58 +00:00
Jonathan Cameron
18d031f46e iio: adc: lpc18xx: use devm_platform_ioremap_resource
Avoid local boilerplate.
Identified by coccinelle

CHECK   drivers/iio/adc/lpc18xx_adc.c
drivers/iio/adc/lpc18xx_adc.c:137:1-10: WARNING: Use devm_platform_ioremap_resource for adc -> base

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Cc: Joachim Eastwood <manabian@gmail.com>
2019-11-09 12:21:24 +00:00
Jonathan Cameron
f449aa3edd iio: adc: ingenic: Use devm_platform_ioremap_resource
Replaces local boilerplate.  Identified by coccinelle.
CHECK   drivers/iio/adc/ingenic-adc.c
drivers/iio/adc/ingenic-adc.c:449:1-10: WARNING: Use devm_platform_ioremap_resource for adc -> base

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Cc: Artur Rojek <contact@artur-rojek.eu>
2019-11-09 12:19:54 +00:00
Jonathan Cameron
46e55d0653 iio: adc: cc10001: use devm_platform_ioremap_resource
Reduces local boilerplate.
Found by coccinelle:

drivers/iio/adc/cc10001_adc.c:344:1-18: WARNING: Use devm_platform_ioremap_resource for adc_dev -> reg_base

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Cc: Naidu Tellapati <naidu.tellapati@imgtec.com>
2019-11-09 12:18:22 +00:00
Jonathan Cameron
f2d025d3f2 iio: adc: bcm_iproc_adc: drop a stray semicolon
Found by coccinelle / coccicheck

CHECK   drivers/iio/adc/bcm_iproc_adc.c
drivers/iio/adc/bcm_iproc_adc.c:311:3-4: Unneeded semicolon

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Cc: Raveendra Padasalagi <raveendra.padasalagi@broadcom.com>
2019-11-09 12:16:31 +00:00
Jonathan Cameron
38877a376a iio: adc: mt6577_auxdac: use devm_platform_ioremap_resource
Reduces boilerplate.  Identified by coccinelle

CHECK   drivers/iio/adc/mt6577_auxadc.c
drivers/iio/adc/mt6577_auxadc.c:257:1-18: WARNING: Use devm_platform_ioremap_resource for adc_dev -> reg_base

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Zhiyong Tao <zhiyong.tao@mediatek.com>
Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
2019-11-09 12:14:34 +00:00
Jonathan Cameron
d19aeb2951 iio: adc: aspeed: use devm_platform_ioremap_resource
Reduces boilerplate.

Identified by: Coccinelle / coccicheck

CHECK   drivers/iio/adc/aspeed_adc.c
drivers/iio/adc/aspeed_adc.c:189:1-11: WARNING: Use devm_platform_ioremap_resource for data -> base

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Rick Altherr <raltherr@google.com>
Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
2019-11-09 12:12:54 +00:00
Johannes Thumshirn
891e60368b drivers: mcb: use symbol namespaces
Now that we have symbol namespaces, use them in MCB to not pollute the
default namespace with MCB internals.

Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Jessica Yu <jeyu@kernel.org>
Reviewed-by: Michael Moese <mmoese@suse.de>
Link: https://lore.kernel.org/r/20191016100158.1400-1-jthumshirn@suse.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-03 19:54:53 +01:00
Alexandru Ardelean
38262c01ea iio: imu: adis: assign read val in debugfs hook only if op successful
This was also caught by the `-Wmaybe-uninitialized` warning, which
(ironically as-is) it makes quite a lot of sense to do for this.

The code that actually calls this function will fail to copy on
the uninitialized value.   Hence, patch does not need to go into stable.

Fixes: 78026a6fde ("iio:imu:adis: Add debugfs register access support")
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-11-03 10:44:29 +00:00
Alexandru Ardelean
9b742763d9 iio: imu: adis16480: assign bias value only if operation succeeded
This was found only after the whole thing with the inline functions, but
the compiler actually found something. The value of the `bias` (in
adis16480_get_calibbias()) should only be set if the read operation was
successful.

No actual known problem occurs as users of this function all
ultimately check the return value.  Hence probably not stable material.

Fixes: 2f3abe6cbb ("iio:imu: Add support for the ADIS16480 and similar IMUs")
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-11-03 10:40:25 +00:00
Alexandru Ardelean
52c4c732b2 iio: imu: adis16480: prefer unsigned int over unsigned
This is a typical checkpatch warning. The change just renames the type of
the `freq` var to `unsigned int`.

Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-11-03 10:38:40 +00:00
Alexandru Ardelean
d9bbae304a iio: imu: adis16480: fix indentation of return statement
This is just a minor indentation/alignment fix for the default case of a
switch statement.

Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-11-03 10:35:21 +00:00
Alexandru Ardelean
6a39ab3b19 iio: imu: adis: check ret val for non-zero vs less-than-zero
The ADIS library functions return zero on success, and negative values for
error. Positive values aren't returned, but we only care about the success
value (which is zero).

This change is mostly needed so that the compiler won't make any inferences
about some about values being potentially un-initialized. This only
triggers after making some functions inline, because the compiler can
better follow return paths.

Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-11-03 10:29:25 +00:00
Alexandru Ardelean
92c7529fc1 iio: imu: adis16480: check ret val for non-zero vs less-than-zero
The ADIS library functions return zero on success, and negative values for
error. Positive values aren't returned, but we only care about the success
value (which is zero).

This change is mostly needed so that the compiler won't make any inferences
about some about values being potentially un-initialized. This only
triggers after making some functions inline, because the compiler can
better follow return paths.

Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-11-03 10:25:43 +00:00
Alexandru Ardelean
c754a45455 iio: imu: adis16460: check ret val for non-zero vs less-than-zero
The ADIS library functions return zero on success, and negative values for
error. Positive values aren't returned, but we only care about the success
value (which is zero).

This change is mostly needed so that the compiler won't make any inferences
about some about values being potentially un-initialized. This only
triggers after making some functions inline, because the compiler can
better follow return paths.

Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-11-03 10:22:39 +00:00
Alexandru Ardelean
fe4b7f917e iio: imu: adis16400: check ret val for non-zero vs less-than-zero
The ADIS library functions return zero on success, and negative values for
error. Positive values aren't returned, but we only care about the success
value (which is zero).

This change is mostly needed so that the compiler won't make any inferences
about some about values being potentially un-initialized. This only
triggers after making some functions inline, because the compiler can
better follow return paths.

Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-11-03 10:16:54 +00:00
Alexandru Ardelean
26ba6db672 iio: gyro: adis16136: check ret val for non-zero vs less-than-zero
The ADIS library functions return zero on success, and negative values for
error. Positive values aren't returned, but we only care about the success
value (which is zero).

This change is mostly needed so that the compiler won't make any inferences
about some about values being potentially un-initialized. This only
triggers after making some functions inline, because the compiler can
better follow return paths.

Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-11-03 10:14:44 +00:00
Alexandru Ardelean
9b58916035 iio: hdc100x: fix iio_triggered_buffer_{predisable,postenable} positions
The iio_triggered_buffer_postenable() hook should be called first to
attach the poll function and the iio_triggered_buffer_predisable() hook
should be called last in the predisable hook.

This change updates the driver to attach/detach the poll func in the
correct order.

Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Reviewed-by: Matt Ranostay <matt.ranostay@konsulko.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-11-02 14:39:41 +00:00
Alexandru Ardelean
a7bddfe2df iio: dln2-adc: fix iio_triggered_buffer_postenable() position
The iio_triggered_buffer_postenable() hook should be called first to
attach the poll function. The iio_triggered_buffer_predisable() hook is
called last (as is it should).

This change moves iio_triggered_buffer_postenable() to be called first. It
adds iio_triggered_buffer_predisable() on the error paths of the postenable
hook.
For the predisable hook, some code-paths have been changed to make sure
that the iio_triggered_buffer_predisable() hook gets called in case there
is an error before it.

Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-11-02 14:36:33 +00:00
Lorenzo Bianconi
cf9c71b38b iio: imu: st_lsm6dsx: add support to LSM6DSRX
Add support to STM LSM6DSRX 6-axis (acc + gyro) Mems sensor
https://www.st.com/resource/en/datasheet/lsm6dsrx.pdf

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-10-27 16:38:06 +00:00
Fabrice Gasnier
e6afcf6c59 iio: adc: stm32-adc: fix stopping dma
There maybe a race when using dmaengine_terminate_all(). The predisable
routine may call iio_triggered_buffer_predisable() prior to a pending DMA
callback.
Adopt dmaengine_terminate_sync() to ensure there's no pending DMA request
before calling iio_triggered_buffer_predisable().

Fixes: 2763ea0585 ("iio: adc: stm32: add optional dma support")

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-10-27 15:57:19 +00:00
Linus Walleij
12737476e0 iio: st: Drop GPIO include
None of the ST sensor drivers use any symbols from
<linux/gpio.h>, just drop the include from all of them.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-10-27 15:55:45 +00:00
Arnd Bergmann
1832f2d8ff compat_ioctl: move more drivers to compat_ptr_ioctl
The .ioctl and .compat_ioctl file operations have the same prototype so
they can both point to the same function, which works great almost all
the time when all the commands are compatible.

One exception is the s390 architecture, where a compat pointer is only
31 bit wide, and converting it into a 64-bit pointer requires calling
compat_ptr(). Most drivers here will never run in s390, but since we now
have a generic helper for it, it's easy enough to use it consistently.

I double-checked all these drivers to ensure that all ioctl arguments
are used as pointers or are ignored, but are not interpreted as integer
values.

Acked-by: Jason Gunthorpe <jgg@mellanox.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: David Sterba <dsterba@suse.com>
Acked-by: Darren Hart (VMware) <dvhart@infradead.org>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-10-23 17:23:44 +02:00