Commit Graph

348 Commits

Author SHA1 Message Date
Linus Torvalds 738b04fba1 Staging/IIO patches for 4.20-rc1
Here is the big staging and IIO driver pull request for 4.20-rc1.
 
 There are lots of things here, we ended up adding more lines than
 removing, thanks to a large influx of Comedi National Instrument device
 support.  Someday soon we need to get comedi out of staging...
 
 Other than the comedi drivers, the "big" things here are:
   - new iio drivers
   - delete dgnc driver (no one used it and no one had the hardware
     anymore)
   - vbox driver updates and fixes
   - erofs fixes
   - tons and tons of tiny checkpatch fixes for almost all staging
     drivers
 
 All of these have been in linux-next, with the last few happening a bit
 "late" due to them getting stuck on my laptop during travel to the
 Mantainers summit.
 
 When merging with your tree, there will be 2 merge conflicts, both files
 will be simple to resolve, just delete them :)
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-4.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging/IIO driver updates from Greg KH:
 "Here is the big staging and IIO driver pull request for 4.20-rc1.

  There are lots of things here, we ended up adding more lines than
  removing, thanks to a large influx of Comedi National Instrument
  device support. Someday soon we need to get comedi out of staging...

  Other than the comedi drivers, the "big" things here are:

   - new iio drivers

   - delete dgnc driver (no one used it and no one had the hardware
     anymore)

   - vbox driver updates and fixes

   - erofs fixes

   - tons and tons of tiny checkpatch fixes for almost all staging
     drivers

  All of these have been in linux-next, with the last few happening a
  bit "late" due to them getting stuck on my laptop during travel to the
  Mantainers summit"

* tag 'staging-4.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (690 commits)
  staging: gasket: Fix sparse "incorrect type in assignment" warnings.
  staging: gasket: remove debug logs for callback invocation
  staging: gasket: remove debug logs in page table mapping calls
  staging: rtl8188eu: core: Use sizeof(*p) instead of sizeof(struct P) for memory allocation
  staging: ks7010: Remove extra blank line
  staging: gasket: Remove extra blank line
  staging: media: davinci_vpfe: Fix spelling mistake in enum
  staging: speakup: Add a pair of braces
  staging: wlan-ng: Replace long int with long
  staging: MAINTAINERS: remove obsolete IPX staging directory
  staging: MAINTAINERS: remove NCP filesystem entry
  staging: rtl8188eu: cleanup comparsions to false
  staging: gasket: Update device virtual address comment
  staging: gasket: sysfs: fix attribute release comment
  staging: gasket: apex: fix sysfs_show
  staging: gasket: page_table: simplify gasket_components_to_dev_address
  staging: gasket: page_table: fix comment in components_to_dev_address
  staging: gasket: page table: fixup error path allocating coherent mem
  staging: gasket: page_table: rearrange gasket_page_table_entry
  staging: gasket: page_table: remove unnecessary PTE status set to free
  ...
2018-10-29 10:38:10 -07:00
ryang 5851b499de iio: light: bh1750: Add device tree support
Add device tree support for ROHM BH1750 series ambient light sensors.

Signed-off-by: ryang <decatf@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-09-29 12:26:07 +01:00
Tomasz Duszynski daae7861a6 iio: light: bh1750: simplify setting PM ops
Relying on CONFIG_PM_SLEEP to set PM ops is not necessary
since core will handle everything internally. One have to only make sure
that functions that can go unused are marked with __maybe_unused.

Signed-off-by: Tomasz Duszynski <tduszyns@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-09-08 16:01:40 +01:00
Tomasz Duszynski 53d3ae20a6 iio: light: bh1750: switch to SPDX identifier
Drop boilerplate license text and use SPDX identifier instead.

Signed-off-by: Tomasz Duszynski <tduszyns@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-09-08 15:04:02 +01:00
David Frey 1c96a2f67c
regmap: split up regmap_config.use_single_rw
Split regmap_config.use_single_rw into use_single_read and
use_single_write. This change enables drivers of devices which only
support bulk operations in one direction to use the regmap_bulk_*()
functions for both directions and have their bulk operation split into
single operations only when necessary.

Update all struct regmap_config instances where use_single_rw==true to
instead set both use_single_read and use_single_write. No attempt was
made to evaluate whether it is possible to set only one of
use_single_read or use_single_write.

Signed-off-by: David Frey <dpfrey@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-07 13:03:55 +01:00
Colin Ian King eb2e188817 iio: max44000: remove unused variable max44000_alstim_shift
Variable max44000_alstim_shift is defined but is never used hence it is
redundant and can be removed. This variable has been like this since
the driver was added back in 2016.

Cleans up clang warning:
warning: 'max44000_alstim_shift' defined but not used [-Wunused-const-variable=]

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-19 18:28:26 +01:00
Brian Masney 7c14947e4d iio: tsl2772: add support for regulator framework
This patch adds support for the regulator framework to the tsl2772
driver. Driver was tested using a LG Nexus 5 (hammerhead) phone with
the two regulators and on a Raspberry Pi 2 without any regulators
controlling the power to the sensor.

Signed-off-by: Brian Masney <masneyb@onstation.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-19 12:06:58 +01:00
Brian Masney 75de3b570b iio: tsl2772: add support for avago,apds9930
The Avago APDS9930 has the same register set as the TAOS/AMS TSL2772 so
this patch adds the correct bindings and the appropriate LUX table
values derived from the values in the datasheet. Driver was tested on a
LG Nexus 5 (hammerhead) phone.

avago,apds9930 datasheet:
https://www.mouser.com/datasheet/2/678/avago_AV02-3190EN_DS_APDS-9930_2014-03-25[1]-1217273.pdf

tsl2772 datasheet:
https://ams.com/eng/content/download/291503/1066377/file/TSL2772_DS000181_2-00.pdf

Signed-off-by: Brian Masney <masneyb@onstation.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-18 18:11:47 +01:00
Brian Masney 94cd1113aa iio: tsl2772: add support for reading proximity led settings from device tree
This patch adds support for optionally reading the proximity led diode
and current settings from device tree. This was tested using a LG
Nexus 5 (hammerhead) which requires a different diode than the driver
default for the IR LED.

Signed-off-by: Brian Masney <masneyb@onstation.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-18 18:11:47 +01:00
Maxime Roussin-Bélanger 496fb59e12 iio: light: si1133: fix uninitialized resp variable
Read response register to detect any error.

Signed-off-by: Maxime Roussin-Bélanger <maxime.roussinbelanger@gmail.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-01 19:01:35 +01:00
Jonathan Cameron 2b4ec22d36 Merge branch 'fixes-togreg' into togreg 2018-08-01 18:56:17 +01:00
Colin Ian King 1e96e93a35 iio: light: si1133 fix test for val being not zero or not one.
The current check on val always results in true and so the
call to sii1133_update_adcsens never gets called. Fix this check
so it returns with -EINVAL only when val is not zero and not one.

Detected by CoverityScan, CID#1472099 ("Logically dead code")

Fixes: e01e7eaf37 ("iio: light: introduce si1133")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-30 19:28:47 +01:00
Tomas Novotny be38866fbb iio: vcnl4000: add support for VCNL4200
VCNL4200 is an integrated long distance (up to 1500mm) proximity and
ambient light sensor.

The support is very basic. There is no configuration of proximity and
ambient light sensing yet. Only the reading of both measured values is
done.

The reading of ambient light and proximity values is blocking. If you
request a new value too early, the driver waits for new value to be
ready.

Signed-off-by: Tomas Novotny <tomas@novotny.cz>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-29 12:19:28 +01:00
Tomas Novotny 58bf9ace8c iio: vcnl4000: warn on incorrectly specified device id
We can detect incorrectly specified device id for some chips, so warn
user in that case.

Signed-off-by: Tomas Novotny <tomas@novotny.cz>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-29 11:03:55 +01:00
Tomas Novotny 50c50b975d iio: vcnl4000: add VCNL4010 and VCNL4020 device id
The driver already supports VCNL4010/20 devices. The currently supported
features and detectable product id are the same, so add shared id for
them.

This is a groundwork to extend the driver by detecting incorrectly
specified device id.

Signed-off-by: Tomas Novotny <tomas@novotny.cz>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-29 09:41:53 +01:00
Tomas Novotny 1ebc787ae5 iio: vcnl4000: make the driver extendable
There are similar chips in the vcnl4xxx family. The initialization and
communication is a bit different for members of the family, so this
patch makes the driver extendable for different chips.

There is no functional change.

Signed-off-by: Tomas Novotny <tomas@novotny.cz>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-29 08:58:33 +01:00
Greg Kroah-Hartman 3ceefa3ffd Second set of IIO new device support, features and cleanups.
There are also a couple of fixes that can wait for the coming merge
 window.
 
 Core new features
 
 * Support for phase channels (used in time of flight sensors amongst
   other things)
 * Support for deep UV light channel modifier.
 
 New Device Support
 
 * AD4758 DAC
   - New driver and dt bindings.
 * adxl345
   - Support the adxl375 +-200g part which is register compatible.
 * isl29501 Time of flight sensor.
   - New driver
 * meson-saradc
   - Support the Meson8m2 Socs - right now this is just an ID, but there will
     be additional difference in future.
 * mpu6050
   - New ID for 6515 variant.
 * si1133 UV sensor.
   - New driver
 * Spreadtrum SC27xx PMIC ADC
   - New driver and dt bindings.
 
 Features
 
 * adxl345
   - Add calibration offset readback and writing.
   - Add sampling frequency control.
 
 Fixes and Cleanups
 
 * ad5933
   - Use a macro for the channel definition to reduce duplication.
 * ad9523
   - Replace use of core mlock with a local lock. Part of ongoing efforts
     to avoid confusing the purpose of mlock which is only about iio core
     state changes.
   - Fix displayed phase which was out by a factor of 10.
 * adxl345
   - Add a link to the datasheet.
   - Rework the use of the address field in the chan_spec structures to
     allow addition of more per channel information.
 * adis imu
   - Mark switch fall throughs.
 * at91-sama5d2
   - Fix some casting on big endian systems.
 * bmp280
   - Drop some DT elements that aren't used and should mostly be done from
     userspace rather than in DT.
 * hx711
   - add clock-frequency dt binding and resulting delay to deal with capacitance
     issue on some boards.
   - fix a spurious unit-address in the example.
 * ina2xx
   - Avoid a possible kthread_stop with a stale task_struct.
 * ltc2632
   - Remove some unused local variables (assigned but value never used).
 * max1363
   - Use device_get_match_data to remove some boilerplate.
 * mma8452
   - Mark switch fall throughs.
 * sca3000
   - Fix a missing return in a switch statement (a bad fallthrough
     previously!)
 * sigma-delta-modulator
   - Drop incorrect unit address from the DT example.
 * st_accel
   - Use device_get_match_data to drop some boiler plate.
   - Move to probe_new for i2c driver as second parameter not used.
 * st_sensors library
   - Use a strlcpy (safe in this case).
 * st_lsm6dsx
   - Add some error logging.
 * ti-ads7950
   - SPDX
   - Allow simultaneous buffered and polled reads. Needed on a Lego Mindstorms
     EV3 where some channels are used for power supply monitoring at a very low
     rate.
 * ti-dac5571
   - Remove an unused variable.
 * xadc
   - Drop some dead code.
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Merge tag 'iio-for-4.19b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

Second set of IIO new device support, features and cleanups.

There are also a couple of fixes that can wait for the coming merge
window.

Core new features

* Support for phase channels (used in time of flight sensors amongst
  other things)
* Support for deep UV light channel modifier.

New Device Support

* AD4758 DAC
  - New driver and dt bindings.
* adxl345
  - Support the adxl375 +-200g part which is register compatible.
* isl29501 Time of flight sensor.
  - New driver
* meson-saradc
  - Support the Meson8m2 Socs - right now this is just an ID, but there will
    be additional difference in future.
* mpu6050
  - New ID for 6515 variant.
* si1133 UV sensor.
  - New driver
* Spreadtrum SC27xx PMIC ADC
  - New driver and dt bindings.

Features

* adxl345
  - Add calibration offset readback and writing.
  - Add sampling frequency control.

Fixes and Cleanups

* ad5933
  - Use a macro for the channel definition to reduce duplication.
* ad9523
  - Replace use of core mlock with a local lock. Part of ongoing efforts
    to avoid confusing the purpose of mlock which is only about iio core
    state changes.
  - Fix displayed phase which was out by a factor of 10.
* adxl345
  - Add a link to the datasheet.
  - Rework the use of the address field in the chan_spec structures to
    allow addition of more per channel information.
* adis imu
  - Mark switch fall throughs.
* at91-sama5d2
  - Fix some casting on big endian systems.
* bmp280
  - Drop some DT elements that aren't used and should mostly be done from
    userspace rather than in DT.
* hx711
  - add clock-frequency dt binding and resulting delay to deal with capacitance
    issue on some boards.
  - fix a spurious unit-address in the example.
* ina2xx
  - Avoid a possible kthread_stop with a stale task_struct.
* ltc2632
  - Remove some unused local variables (assigned but value never used).
* max1363
  - Use device_get_match_data to remove some boilerplate.
* mma8452
  - Mark switch fall throughs.
* sca3000
  - Fix a missing return in a switch statement (a bad fallthrough
    previously!)
* sigma-delta-modulator
  - Drop incorrect unit address from the DT example.
* st_accel
  - Use device_get_match_data to drop some boiler plate.
  - Move to probe_new for i2c driver as second parameter not used.
* st_sensors library
  - Use a strlcpy (safe in this case).
* st_lsm6dsx
  - Add some error logging.
* ti-ads7950
  - SPDX
  - Allow simultaneous buffered and polled reads. Needed on a Lego Mindstorms
    EV3 where some channels are used for power supply monitoring at a very low
    rate.
* ti-dac5571
  - Remove an unused variable.
* xadc
  - Drop some dead code.
2018-07-25 10:12:07 +02:00
Maxime Roussin-Bélanger e01e7eaf37 iio: light: introduce si1133
e-mail received from Silicon Lab to confirm that the licensing
isn't a problem.

"
Dear Maxime Roussin-Belanger,

The LUX calculation code only works with Si1133.
As long as the software is used with Silicon Lab's sensor product,
I don't see any problem.

Regards,
Tony
"

Signed-off-by: Maxime Roussin-Bélanger <maxime.roussinbelanger@gmail.com>
Reviewed-by: Jean-Francois Dagenais <jeff.dagenais@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-07-23 19:18:11 +01:00
Colin Ian King 288320f6e9 iio: tsl2x7x/tsl2772: avoid potential division by zero
It may be possible for tsl2772_get_lux to return a zero lux value
and hence a division by zero can occur when lux_val is zero. Check
for this case and return -ERANGE to avoid the division by zero.

Detected by CoverityScan, CID#1469484 ("Division or modulo by zero")

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Brian Masney <masneyb@onstation.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-06-24 14:22:38 +01:00
Brian Masney 4833dc4bb9 iio: tsl2583: correct values in integration_time_available
The times reported by the in_illuminance_integration_time_available
sysfs attribute are actually in milliseconds, not microseconds. This
patch corrects the times with the correct unit.

The fixes tag is inaccurate as the issue existed when the driver
was still in staging.   However, lots of changes occured before
it graduated so this is as a good a point as any for backports.

Signed-off-by: Brian Masney <masneyb@onstation.org>
Fixes: f44d5c8ac3 ("staging: iio: tsl2583: move out of staging")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-05-20 10:29:28 +01:00
Brian Masney c06c4d7935 staging: iio: tsl2x7x/tsl2772: move out of staging
Move the tsl2772 driver out of staging and into mainline.

Signed-off-by: Brian Masney <masneyb@onstation.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-05-12 12:40:04 +01:00
Gwendal Grignou 5a0b8cb466 iio: cros_ec: Move cros_ec_sensors_core.h in /include
Similar to other common iio frameworks, move cros_ec_sensors_core.h from
drivers/iio/common/cros_ec_sensors/ to include/linux/iio/common.

Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-03-17 19:59:20 +00:00
Rodrigo Siqueira 67464a54e5 iio: Replace occurrences of magic number 0 by IIO_CHAN_INFO_RAW
Usually, functions responsible for reading raw data typically relies on
values from iio_chan_info_enum to correctly identify the type of data to
be read. There is a set of a device driver that uses the magic number 0
instead of IIO_CHAN_INFO_RAW. This patch improves the readability by
replaces the magic number 0 for the appropriate IIO_CHAN_INFO_RAW in six
devices driver in the IIO subsystem.

Signed-off-by: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-03-07 20:14:36 +00:00
Jeff LaBundy 0f07954715 iio: light: lv0104cs: Add support for LV0104CS light sensor
This patch adds support for the On Semiconductor LV0104CS ambient
light sensor.

Signed-off-by: Jeff LaBundy <jeff@labundy.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-03-03 15:16:57 +00:00
Gwendal Grignou 0dad1eceeb iio: cros_ec: Relax sampling frequency before suspending
If an application set a tight sampling frequency, given the interrupt
use is a wakeup source, suspend will not happen: the kernel will receive
a wake up interrupt and will cancel the suspend process.

Given cros_ec sensors type is non wake up, this patch adds prepare and
complete callbacks to set 1s sampling period just before suspend. This
ensures the sensor hub will not be a source of interrupt during the
suspend process.

Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-03-03 15:02:58 +00:00
Matt Ranostay d6ad805844 iio: add SPDX identifier for various drivers
Add GPLv2+ SPDX identifier and update email for author's drivers.

Signed-off-by: Matt Ranostay <matt.ranostay@konsulko.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-02-18 11:55:19 +00:00
Colin Ian King debbbbef06 iio: light: make a couple of config structures static
Structures st_uvis25_i2c_regmap_config and st_uvis25_spi_regmap_config are
local to the source and do not need to be in global scope, so make them
both static.

Cleans up sparse warnings:
warning: symbol 'st_uvis25_i2c_regmap_config' was not declared. Should
it be static?
warning: symbol 'st_uvis25_spi_regmap_config' was not declared. Should
it be static?

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-08 16:03:41 +01:00
Lorenzo Bianconi 3025c8688c iio: light: add support for UVIS25 sensor
add support for STMicroelectronics UVIS25 uv sensor
http://www.st.com/resource/en/datasheet/uvis25.pdf

- continuos mode support
- i2c support
- spi support
- trigger mode support
- system PM support

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-12-02 10:41:25 +00:00
Peter Meerwald-Stadler 8556f51498 iio: light: Add driver for IDT ZOPT2201 ambient light and UVB sensor
Driver for 20-bit ALS and UV B sensor with I2C interface exposing
the following API:
  in_uvindex_input
  in_illuminance_raw
  in_illuminance_scale
  in_illuminance_scale_available
  in_intensity_uv_raw
  in_intensity_uv_scale
  in_intensity_uv_scale_available
  integration_time
  integration_time_available

Signed-off-by: Peter Meerwald-Stadler <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-12-02 10:39:48 +00:00
Paolo Cretaro 5f045af0b5 iio: cros_ec: Remove unused variables
Fix gcc warnings about variable 'ec_device' being set but not used
in these files:
common/cros_ec_sensors/cros_ec_sensors.c:194:25
light/cros_ec_light_prox.c:184:25

Signed-off-by: Paolo Cretaro <paolocretaro@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-12-02 10:39:44 +00:00
Linus Torvalds 449fcf3ab0 Staging/IIO patches for 4.15-rc1
Here is the "big" staging and IIO driver update for 4.15-rc1.
 
 Lots and lots of little changes, almost all minor code cleanups as the
 Outreachy application process happened during this development cycle.
 Also happened was a lot of IIO driver activity, and the typec USB code
 moving out of staging to drivers/usb (same commits are in the USB tree
 on a persistent branch to not cause merge issues.)
 
 Overall, it's a wash, I think we added a few hundred more lines than
 removed, but really only a few thousand were modified at all.
 
 All of these have been in linux-next for a while.  There might be a
 merge issue with Al's vfs tree in the pi433 driver (take his changes,
 they are always better), and the media tree with some of the odd atomisp
 cleanups (take the media tree's version).
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging and IIO updates from Greg KH:
 "Here is the "big" staging and IIO driver update for 4.15-rc1.

  Lots and lots of little changes, almost all minor code cleanups as the
  Outreachy application process happened during this development cycle.
  Also happened was a lot of IIO driver activity, and the typec USB code
  moving out of staging to drivers/usb (same commits are in the USB tree
  on a persistent branch to not cause merge issues.)

  Overall, it's a wash, I think we added a few hundred more lines than
  removed, but really only a few thousand were modified at all.

  All of these have been in linux-next for a while. There might be a
  merge issue with Al's vfs tree in the pi433 driver (take his changes,
  they are always better), and the media tree with some of the odd
  atomisp cleanups (take the media tree's version)"

* tag 'staging-4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (507 commits)
  staging: lustre: add SPDX identifiers to all lustre files
  staging: greybus: Remove redundant license text
  staging: greybus: add SPDX identifiers to all greybus driver files
  staging: ccree: simplify ioread/iowrite
  staging: ccree: simplify registers access
  staging: ccree: simplify error handling logic
  staging: ccree: remove dead code
  staging: ccree: handle limiting of DMA masks
  staging: ccree: copy IV to DMAable memory
  staging: fbtft: remove redundant initialization of buf
  staging: sm750fb: Fix parameter mistake in poke32
  staging: wilc1000: Fix bssid buffer offset in Txq
  staging: fbtft: fb_ssd1331: fix mirrored display
  staging: android: Fix checkpatch.pl error
  staging: greybus: loopback: convert loopback to use generic async operations
  staging: greybus: operation: add private data with get/set accessors
  staging: greybus: loopback: Fix iteration count on async path
  staging: greybus: loopback: Hold per-connection mutex across operations
  staging: greybus/loopback: use ktime_get() for time intervals
  staging: fsl-dpaa2/eth: Extra headroom in RX buffers
  ...
2017-11-13 20:53:28 -08:00
Greg Kroah-Hartman b24413180f License cleanup: add SPDX GPL-2.0 license identifier to files with no license
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.

By default all files without license information are under the default
license of the kernel, which is GPL version 2.

Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier.  The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.

This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.

How this work was done:

Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
 - file had no licensing information it it.
 - file was a */uapi/* one with no licensing information in it,
 - file was a */uapi/* one with existing licensing information,

Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.

The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne.  Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.

The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed.  Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.

Criteria used to select files for SPDX license identifier tagging was:
 - Files considered eligible had to be source code files.
 - Make and config files were included as candidates if they contained >5
   lines of source
 - File already had some variant of a license header in it (even if <5
   lines).

All documentation files were explicitly excluded.

The following heuristics were used to determine which SPDX license
identifiers to apply.

 - when both scanners couldn't find any license traces, file was
   considered to have no license information in it, and the top level
   COPYING file license applied.

   For non */uapi/* files that summary was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0                                              11139

   and resulted in the first patch in this series.

   If that file was a */uapi/* path one, it was "GPL-2.0 WITH
   Linux-syscall-note" otherwise it was "GPL-2.0".  Results of that was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0 WITH Linux-syscall-note                        930

   and resulted in the second patch in this series.

 - if a file had some form of licensing information in it, and was one
   of the */uapi/* ones, it was denoted with the Linux-syscall-note if
   any GPL family license was found in the file or had no licensing in
   it (per prior point).  Results summary:

   SPDX license identifier                            # files
   ---------------------------------------------------|------
   GPL-2.0 WITH Linux-syscall-note                       270
   GPL-2.0+ WITH Linux-syscall-note                      169
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause)    21
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)    17
   LGPL-2.1+ WITH Linux-syscall-note                      15
   GPL-1.0+ WITH Linux-syscall-note                       14
   ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause)    5
   LGPL-2.0+ WITH Linux-syscall-note                       4
   LGPL-2.1 WITH Linux-syscall-note                        3
   ((GPL-2.0 WITH Linux-syscall-note) OR MIT)              3
   ((GPL-2.0 WITH Linux-syscall-note) AND MIT)             1

   and that resulted in the third patch in this series.

 - when the two scanners agreed on the detected license(s), that became
   the concluded license(s).

 - when there was disagreement between the two scanners (one detected a
   license but the other didn't, or they both detected different
   licenses) a manual inspection of the file occurred.

 - In most cases a manual inspection of the information in the file
   resulted in a clear resolution of the license that should apply (and
   which scanner probably needed to revisit its heuristics).

 - When it was not immediately clear, the license identifier was
   confirmed with lawyers working with the Linux Foundation.

 - If there was any question as to the appropriate license identifier,
   the file was flagged for further research and to be revisited later
   in time.

In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.

Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights.  The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.

Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.

In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.

Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
 - a full scancode scan run, collecting the matched texts, detected
   license ids and scores
 - reviewing anything where there was a license detected (about 500+
   files) to ensure that the applied SPDX license was correct
 - reviewing anything where there was no detection but the patch license
   was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
   SPDX license was correct

This produced a worksheet with 20 files needing minor correction.  This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.

These .csv files were then reviewed by Greg.  Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected.  This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.)  Finally Greg ran the script using the .csv files to
generate the patches.

Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-02 11:10:55 +01:00
Stefan Brüns 3525d7cfb7 iio: light: vl6180: Correct ALS scale for non-default gain/integration time
The reported scale was only correct for the default settings of 100 ms
integration time and gain 1.

This aligns the reported scale with the behaviour of any other IIO driver
and the documented ABI, but may require userspace changes if someone uses
non-default settings.

Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-10-09 20:50:21 +01:00
Stefan Brüns e794bf6751 iio: light: vl6180: Cleanup als_gain lookup, avoid register readback
Instead of manually iterating the array of allowed gain values, use
find_closest. Storing the current gain setting avoids accessing the
hardware on each query.

Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-10-09 20:50:15 +01:00
Stefan Brüns df698c0402 iio: light: vl6180: Avoid readback of integration time register
Instead of reading the value from the register on each query, store the
set value.

Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-10-09 20:50:10 +01:00
Stefan Brüns 1e2ed3d0d2 iio: light: vl6180: Move range check to integration time setter, cleanup
This improves code uniformity (range checks for als_gain are also done
in the setter). Also unmangle rounding and calculation of register value.

The calculated integration time it_ms is required in the next patch of
the series.

Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-10-09 20:50:08 +01:00
Akinobu Mita 9d2f715d59 iio: light: tcs3472: support out-of-threshold events
The TCS3472 device provides interrupt signal for out-of-threshold events
with persistence filter.

This change adds interrupt support for the threshold events and enables
to configure the period of time by persistence filter.

Cc: Peter Meerwald <pmeerw@pmeerw.net>
Cc: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-09-03 18:10:29 +01:00
Jonathan Cameron 4166b47c2b iio:light: drop assign iio_info.driver_module and iio_trigger_ops.owner
The equivalent of both of these are now done via macro magic when
the relevant register calls are made.  The actual structure
elements will shortly go away.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
2017-08-22 21:31:57 +01:00
Greg Kroah-Hartman 5e47adb906 Second set of IIO new device support, features and cleanup for the 4.14 cycle.
New device support:
 * ak8974
   - support the AMI306.
 * st_magnetometer
   - add support for the LIS2MDL with bindings.
 * rockchip-saradc
   - add binding for rv1108 SoC (no driver change).
 * srf08
   - add srf02 (i2c only) and srf10 support.
 * stm32-timer
   - support for the STM32H7 to existing driver.
 
 Features:
 * tools
   - move over to the tools buildsystem rather than hand rolling.
   - add an install section to the build.
 * ak8974
   - use serial number to add device randomness.
   - add AMI306 calibration data output.
 * ccs811
   - triggered buffer support.
 * srf08
   - add a device tree table as the old style i2c probing is going away,
   - add triggered buffer support
 * st32-adc
   - add optional st,min-sample-time-nsecs binding to allow control of
     sampling against analog circuitry.
 * stm32-timer
   - add output compare triggers.
 * ti-ads1015
   - add threshold event support.
 * ti-ads7950
   - Allow use on ACPI platforms including providing a default reference
     voltage as there is no way to obtain this on ACPI currently.
 
 Cleanup and fixes:
 * ad7606
   - fix an error return code in probe.
 * ads1015
   - fix incorrect data rate setting update when capture in progress,
   - fix wrong scale information for the ADS1115,
   - make conversions work when CONFIG_PM is not set,
   - make sure we don't get a stale result after a runtime resume by
     ensuring we wait long enough,
   - avoid returning a false error form the buffer setup callbacks,
   - add enough wait time to get the correct conversion,
   - remove an unnecessary config register update,
   - add a helper to set conversion mode reducing repeated boilerplate,
   - use devm_iio_triggered_buffer_setup to simplify error and remove
     paths,
   - use iio_device_claim_direct_mode instead of opencoding the same.
 * ak8974
   - mark the INT_CLEAR register as precious to prevent debugfs access.
 * apds9300
   - constify the i2c_device_id.
 * at91-sama5 adc
   - add missing Kconfig dependency.
 * bma180 accel
   - constify the i2c_device_id.
 * rockchip_saradc
   - explicitly request exclusive reset control as part of the reset rework
     on going throughout the kernel.
 * st_accel
   - fix drdy configuration for a load of accelerometers that only have
     the int1 line.  Fix is unimportant as presumably no deviec tree actually
     used the non existent hardware line.
 * st_pressure
   - fix drdy configuration for LPS22HB and LPS25H by dropping int2 support
     as they don't have this. Fix is unimportant as presumably no device tree
     actually used the non existent hardware line.
 * stm32-dac
   - explicitly request exclusive reset control (part of reset being reworked).
 * tsl2583
   - constify the i2c_device_id.
 * xadc
   - coding style fixes.
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Merge tag 'iio-for-4.14b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

Second set of IIO new device support, features and cleanup for the 4.14 cycle.

New device support:
* ak8974
  - support the AMI306.
* st_magnetometer
  - add support for the LIS2MDL with bindings.
* rockchip-saradc
  - add binding for rv1108 SoC (no driver change).
* srf08
  - add srf02 (i2c only) and srf10 support.
* stm32-timer
  - support for the STM32H7 to existing driver.

Features:
* tools
  - move over to the tools buildsystem rather than hand rolling.
  - add an install section to the build.
* ak8974
  - use serial number to add device randomness.
  - add AMI306 calibration data output.
* ccs811
  - triggered buffer support.
* srf08
  - add a device tree table as the old style i2c probing is going away,
  - add triggered buffer support
* st32-adc
  - add optional st,min-sample-time-nsecs binding to allow control of
    sampling against analog circuitry.
* stm32-timer
  - add output compare triggers.
* ti-ads1015
  - add threshold event support.
* ti-ads7950
  - Allow use on ACPI platforms including providing a default reference
    voltage as there is no way to obtain this on ACPI currently.

Cleanup and fixes:
* ad7606
  - fix an error return code in probe.
* ads1015
  - fix incorrect data rate setting update when capture in progress,
  - fix wrong scale information for the ADS1115,
  - make conversions work when CONFIG_PM is not set,
  - make sure we don't get a stale result after a runtime resume by
    ensuring we wait long enough,
  - avoid returning a false error form the buffer setup callbacks,
  - add enough wait time to get the correct conversion,
  - remove an unnecessary config register update,
  - add a helper to set conversion mode reducing repeated boilerplate,
  - use devm_iio_triggered_buffer_setup to simplify error and remove
    paths,
  - use iio_device_claim_direct_mode instead of opencoding the same.
* ak8974
  - mark the INT_CLEAR register as precious to prevent debugfs access.
* apds9300
  - constify the i2c_device_id.
* at91-sama5 adc
  - add missing Kconfig dependency.
* bma180 accel
  - constify the i2c_device_id.
* rockchip_saradc
  - explicitly request exclusive reset control as part of the reset rework
    on going throughout the kernel.
* st_accel
  - fix drdy configuration for a load of accelerometers that only have
    the int1 line.  Fix is unimportant as presumably no deviec tree actually
    used the non existent hardware line.
* st_pressure
  - fix drdy configuration for LPS22HB and LPS25H by dropping int2 support
    as they don't have this. Fix is unimportant as presumably no device tree
    actually used the non existent hardware line.
* stm32-dac
  - explicitly request exclusive reset control (part of reset being reworked).
* tsl2583
  - constify the i2c_device_id.
* xadc
  - coding style fixes.
2017-08-20 10:42:42 -07:00
Arvind Yadav 3282fa3c0a iio: light: tsl2583: constify i2c_device_id
i2c_device_id are not supposed to change at runtime. All functions
working with i2c_device_id provided by <linux/i2c.h> work with
const i2c_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-08-20 10:17:23 +01:00
Arvind Yadav a6e5de9375 iio: light: apds9300: constify i2c_device_id
i2c_device_id are not supposed to change at runtime. All functions
working with i2c_device_id provided by <linux/i2c.h> work with
const i2c_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-08-20 10:16:48 +01:00
Greg Kroah-Hartman 8652892ed4 Merge 4.13-rc5 into staging-next
We need it here for iio fixes.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-08-14 13:35:22 -07:00
Greg Kroah-Hartman 055655a9f0 First set of IIO fixes for the 4.13 cycle.
* ad2s1210
   - Fix negative angular velocity reads (identified by a gcc 7 warning)
 * aspeed-adc
   - Wait for initialization sequence to finish before enabling channels.
   Without it no channels work.
 * axp288
   - Revert a patch that dropped some bogus register mods.  No one is entirely
   sure why but it breaks charging on some devices.
   - Fix GPADC pin read returning 0. Turns out a small sleep is needed.
 * bmc150
   - Make sure device is restored to normal state after suspend / resume
   cycle.  Otherwise, simple sysfs reads are broken.
 * tsl2563
   - fix wrong event code.
 * st-accel
   - add spi 3-wire support. Needed to fix the lsm303agr accelerometer
   which only had 3 wires in all cases.  Side effect is to enable optional
   3-wire support for other devices.
 * st-pressure
   - disable multiread by default for LPS22HB (only effects SPI)
 * sun4i-gpadc-iio
   - fix unbalanced irq enable / disable
 * vf610
   - Fix VALT slection for REFSEL bits - ensures we are using the
   right reference pins.
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Merge tag 'iio-fixes-for-4.13a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus

Jonathan writes:

First set of IIO fixes for the 4.13 cycle.

* ad2s1210
  - Fix negative angular velocity reads (identified by a gcc 7 warning)
* aspeed-adc
  - Wait for initialization sequence to finish before enabling channels.
  Without it no channels work.
* axp288
  - Revert a patch that dropped some bogus register mods.  No one is entirely
  sure why but it breaks charging on some devices.
  - Fix GPADC pin read returning 0. Turns out a small sleep is needed.
* bmc150
  - Make sure device is restored to normal state after suspend / resume
  cycle.  Otherwise, simple sysfs reads are broken.
* tsl2563
  - fix wrong event code.
* st-accel
  - add spi 3-wire support. Needed to fix the lsm303agr accelerometer
  which only had 3 wires in all cases.  Side effect is to enable optional
  3-wire support for other devices.
* st-pressure
  - disable multiread by default for LPS22HB (only effects SPI)
* sun4i-gpadc-iio
  - fix unbalanced irq enable / disable
* vf610
  - Fix VALT slection for REFSEL bits - ensures we are using the
  right reference pins.
2017-07-23 20:54:31 -07:00
Mikko Koivunen e12ffd241c iio: light: rpr0521 triggered buffer
Set up and use triggered buffer if there is irq defined for device in
device tree. Trigger producer triggers from rpr0521 drdy interrupt line.
Trigger consumer reads rpr0521 data to scan buffer.
Depends on previous commits of _scale and _offset.

Signed-off-by: Mikko Koivunen <mikko.koivunen@fi.rohmeurope.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-07-04 20:46:28 +01:00
Akinobu Mita ea5c6e262c iio: light: tcs3472: add link to datasheet
Add a link to the TCS3472 datasheet in the AMS's website.

Cc: Peter Meerwald <pmeerw@pmeerw.net>
Cc: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-07-01 10:23:06 +01:00
Akinobu Mita 53d7d8139f iio: light: tcs3472: fix ATIME register write
The integration time is controlled by the ATIME register only.  However,
this register is written by i2c_smbus_write_word_data() in write_raw().

We actually don't need to write a subsequent register.  So just use
i2c_smbus_write_byte_data() instead.

Cc: Peter Meerwald <pmeerw@pmeerw.net>
Cc: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Acked-by: Peter Meerwald-Stadler <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-07-01 10:16:49 +01:00
Akinobu Mita a3507e48d3 iio: light: tsl2563: use correct event code
The TSL2563 driver provides three iio channels, two of which are raw ADC
channels (channel 0 and channel 1) in the device and the remaining one
is calculated by the two.  The ADC channel 0 only supports programmable
interrupt with threshold settings and this driver supports the event but
the generated event code does not contain the corresponding iio channel
type.

This is going to change userspace ABI.  Hopefully fixing this to be
what it should always have been won't break any userspace code.

Cc: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-06-24 20:42:49 +01:00
Greg Kroah-Hartman 7bf1e44f86 Merge 4.12-rc5 into staging-next
We want the IIO fixes and other staging driver fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-06-12 08:20:47 +02:00
Mikko Koivunen 9ece370b02 iio: light: rpr0521 channel numbers reordered
Move proximity channel from last to first in structs to avoid confusion
later with buffered triggers. Proximity data output is first in rpr0521
register map.

Signed-off-by: Mikko Koivunen <mikko.koivunen@fi.rohmeurope.com>
Acked-by: Daniel Baluta <daniel.baluta@nxp.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-05-21 15:06:15 +01:00
Mikko Koivunen 734c442303 iio: light: rpr0521 proximity offset read/write
Add sysfs read/write proximity offset feature. Offset is read/write from
sensor registers. Values are proximity raw 10-bit values. After applying
offset value, output values will be (measured_raw - offset_value). Output
values are unsigned so offset value doesn't make output negative.

Signed-off-by: Mikko Koivunen <mikko.koivunen@fi.rohmeurope.com>
Acked-by: Daniel Baluta <daniel.baluta@nxp.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-05-21 15:06:15 +01:00