First round of new IIO drivers, features and cleanups for the 3.20 cycle

The following changes since commit 5e62863aea463c9bf24538315327d0922be35d64:

staging: comedi: das800: use comedi_async 'scans_done' to detect EOA (2014-11-05 14:59:48 -0800)

are available in the git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git tags/iio-for-3.20a

for you to fetch changes up to 0a01db9d64350754f5d714d44dab81cb97a67a81:

staging:iio:ad5933: Remove platform data from state struct (2015-01-05 18:59:58 +0000)

----------------------------------------------------------------
First round of IIO new drivers, cleanups and functionality for the 3.20 cycle.

New device support
* jsa1212 proxmity / ambient light sensor
* SM08500 supported added to the kxcjk-1013 accelerometer driver
* KMX61 Accelerometer/Magnetometer. This took a somewhat rocky path being first merged, then reverted for a rewrite after a discussion of how to support additional functionality and finally being merged prior to some last reviews coming in, with resultant follow up patches.
* Freescale mma9551l driver (minor follow up warning supression patch).
* Semtech SX9500 proximity device driver.
* ak8975 gains support for ak09911 and ak09912 and drop the standalone driver for the ak09911.

New functionality
* Dummy driver gains some virtual registers making it more flexible.
* IIO_ACTIVITY channel types, with modifiers running, walking etc. This is to support on chip motion clasifiers. As such it is in the form of a confidence percentage. The only devices so far only do binary decisions but this gives us room when other devices give more nuanced clasification.
* IIO_EV_DIR_NONE type for events where there is no obvious direction. First case is step detection.
* IIO_STEPS channel type for pedometers.
* ENABLE mask element used to control turning on counting types such as the pedometer that need a 'start point'.
* INSTANCE event type to support things that happen once.
* info element for height calibration (used in various motion estimation algorithms). Note heigh tof use
* dummy driver demonstration of the use of all the new bits above.
* event monitor support for the new events.
* inv_mpu6050 gains an i2c mux to allow bypassing the device to access additional devices connected on the other side of it. Note that in Windows these are handled by firmware on the device and not exposed directly.
* inv_mpu6050 gains ACPI enumeration.
* inkern interface gains iio_write_channel_raw to allow in kernel users of DAC functionality via a simple wrapper.
* Document input current readings in the ABI docs.
* Add an error message when we get an out of range error in device tree processing for the in kernel interfaces. Basically a device tree debugging aid.
* Add a sanity check that a scan index for a channel is unique during registration. There to help catch bugs as this should never happen in a bug free driver.

Cleanups and fixlets

A rework of buffer registration from Lars - a precursor to some other upcoming new stuff (a few patches from others rolled in here as well).
* Ensure all drivers register the same channels for the device and buffer.
* Move buffer registration into the core rather than using the old two step approach. Now we have simple ways of using a unified set channels for both without requiring channels be exposed by both interface, this removes a fair bit of boilerplate.
* Stop sca3000 and ad5933 (both in staging) enabling buffer channels by default. It has long be convention in IIO to startup with no channels enabled and leave it up to userspace to say what goes in the buffer. Getting rid of these allows us to drop export of iio_scan_mask_set.
* Drop get_bytes_per_datum from iio_buffer_access_funcs as not been used for a while.
* Allocate standard buffer attributes in the core rather than in every driver with a buffer.
* Make the length attribute read only when a driver is not able to set the length.
* Drop the get_length callback for buffers as it is already available in struct iio_buffer.
* Drop an unused arguement form iio_kfifo_allocate and add devm allocator for it.
* some kconfig entries gain anotation with the resulting module name.
* Fix a resulting compile issue in dummy driver due to a stub taking wrong parameters as a result of the above rework.
* Fix an off by 2 error in copying the core assigned buffer attributes.

Other cleanups,
* Trivial space before comma fixups.
* ak8975 fixlets - none critical. Rework to allow more device support.
* Drop unnecessary sizeof(u8) calls.
* bmp280 - refactor the compensation code to reduce copy operations and code length. A second patch futher optimized this and performed some other minor cleanups.
* kxcjk-1013 - various power control cleanups to avoid unnecessary enable / disable of device. Make sure it is only controlled at all if CONFIG_PM is enabled. Also som cleanups of error paths.
* Small cleanups in adf4530 driver - pointless message and unnecessary braces.
* Clarifiy the proximity ABI docs to make it clear it should get bigger as we move futher away.
* Drop a misleading comment form industrialio-core.c
* Trivial white space cleanups.
* sca3000 looses an unused debug function.
* Fix char unsigned ordering in ad8366
* Increase the sleep time in ad9523 to make it predictable (value didn't really matter so make it more than 20 msecs)
* mxs-lradc touchscreen property cleanups in device tree are fixed to ensure the meet all the 'interesting' documentation.
* A couple of cleanups for the staging ad5933 driver to avoid unnecessary conversion to a processed temperature vlaue in kernel and remove platform data form the state structure as not needed after probe.
* Fix a wrong scale factor in the docs.

Misc
* Add IIO include files to the maintainers entry.

----------------------------------------------------------------
Adam Thomson (1):
iio: Add ABI documentation for input current readings

Bastien Nocera (1):
iio:kxcjk-1013: Add support for SMO8500 device

Daniel Baluta (21):
MAINTAINERS: Add IIO include files
iio: imu: Add support for Kionix KMX61 sensor
iio: dummy: Add virtual registers for dummy device
iio: core: Introduce IIO_ACTIVITY channel
iio: dummy: Demonstrate the usage of new channel types
iio: event_monitor: Add support for new channel types
iio: imu: Add support for Kionix KMX61 sensor
iio: imu: kmx61: Add acpi support
iio: imu: kmx61: Add PM runtime support
iio: imu: kmx61: Add PM sleep support
iio: imu: kmx61: Add support for data ready triggers
iio: imu: kmx61: Add support for any motion trigger
iio: imu: kmx61: Save odr_bits for later use
iio: imu: kmx61: Don't ignore kmx61_set_power_state errors
iio: imu: kmx61: Enhance error handling
iio: imu: kmx61: Fixup parameters alignment
iio: imu: kmx61: Drop unused device parameter
iio: imu: kmx61: Use false instead of 0 for ev_enable_state
iio: imu: kmx61: Fix device initialization when setting trigger state
iio: imu: kmx61: Remove unnecessary REG_INS1 read
iio: imu: kmx61: Use correct base when reading data

Dmitry Eremin-Solenikov (1):
iio: inkern: add iio_write_channel_raw

Fabian Frederick (1):
iio: common: remove unnecessary sizeof(u8)

Gwendal Grignou (3):
iio: ak8975: minor fixes
iio: ak8975: add definition structure per compass type
iio: ak8975: add ak09911 and ak09912 support

Hartmut Knaack (1):
iio:pressure:bmp280: cleanup

Irina Tirdea (7):
iio: core: Introduce IIO_EV_DIR_NONE
iio: core: Introduce STEPS channel, ENABLE mask and INSTANCE event
iio: core: Introduce IIO_CHAN_INFO_CALIBHEIGHT
iio: accel: kxcjk-1013: always power on device in resume
iio: accel: kxcjk-1013: only set power state if CONFIG_PM is defined
iio: accel: kxcjk-1013: error handling when set mode fails
iio: accel: kxcjk-1013: power off device if probe fails

Ivan T. Ivanov (1):
iio: consumer.h: Fix scale factor in function comment

Jonathan Cameron (1):
Revert "iio: imu: Add support for Kionix KMX61 sensor"

Karol Wrona (3):
iio: kfifo: Remove unused argument in iio_kfifo_allocate
iio: kfifo: Add resource management devm_iio_kfifo_allocate/free
iio: core: Get rid of misleading comment

Kuppuswamy Sathyanarayanan (1):
iio: jsa1212: Add JSA1212 proximity/ALS sensor

Lars-Peter Clausen (13):
staging:iio:ad5933: Don't enable channels by default staging:iio:sca3000: Don't enable channels by default
iio: Unexport iio_scan_mask_set()
staging:iio:sca3000: Register same channels for device and buffer staging:iio:dummy: Register same channels for device and buffer
iio: Move buffer registration to the core
iio: Remove get_bytes_per_datum() from iio_buffer_access_funcs
iio: buffer: Move iio_buffer_alloc_sysfs and iio_buffer_free_sysfs
iio: buffer: Allocate standard attributes in the core
iio: buffer: Make length attribute read only for buffers without set_length
iio: buffer: Drop get_length callback
staging:iio:ad5933: Report temperature as raw value staging:iio:ad5933: Remove platform data from state struct

Octavian Purdila (1):
iio: buffer: fix custom buffer attributes copy

Rickard Strandqvist (1):
staging: iio: accel: sca3000_core.c: Remove unused function

Roberta Dobrescu (11):
iio: frequency: Remove 'out of memory' message
iio: frequency: Remove unnecessary braces around single statement block
iio: trigger: Add a blank line after declarations
iio: accel: kxcjk-1013: Add a blank line after declarations
iio: accel: mma8452: Remove trailing whitespace
iio: accel: Annotate Kconfig entries with module name information
iio: light: Annotate Kconfig entry with module name information
iio: light: lm3533-als: Remove space before ','
iio: amplifiers: ad8366: Remove space before ','
iio: amplifiers: ad8366: Use right order for type specification
iio: frequency: ad9523: Increase sleep time in ad9523_store_eeprom

Srinivas Pandruvada (2):
iio: imu: inv_mpu6050: Add i2c mux for by pass
iio: imu: inv_mpu6050: ACPI enumeration

Stefan Wahren (3):
iio: inkern: add out of range error message
DT: mxs-lradc: fix ranges of ts properties
iio: mxs-lradc: check ranges of ts properties

Vlad Dogaru (7):
iio: bmp280: refactor compensation code
iio: add driver for Freescale MMA9551L
iio: ABI: add clarification for proximity
iio: mma9551: fix sparse warning
staging: iio: dummy: fix compile error when not using buffering
iio: driver for Semtech SX9500 proximity solution
iio: ensure scan index is unique at device register

Zachary Warren (1):
drivers:staging:iio: fix checkpatch complaint about space before comma

kbuild test robot (1):
iio: imu: kmx61: kmx61_set_wake_up_odr() can be static

 Documentation/ABI/testing/sysfs-bus-iio            |   95 +-
 .../bindings/staging/iio/adc/mxs-lradc.txt         |    4 +-
 Documentation/driver-model/devres.txt              |    2 +
 MAINTAINERS                                        |    1 +
 drivers/iio/accel/Kconfig                          |   16 +
 drivers/iio/accel/Makefile                         |    1 +
 drivers/iio/accel/kxcjk-1013.c                     |   52 +-
 drivers/iio/accel/mma8452.c                        |    2 +-
 drivers/iio/accel/mma9551.c                        |  956 ++++++++++++
 drivers/iio/adc/ti_am335x_adc.c                    |   11 +-
 drivers/iio/amplifiers/ad8366.c                    |    4 +-
 drivers/iio/common/st_sensors/st_sensors_spi.c     |    2 +-
 drivers/iio/frequency/ad9523.c                     |    2 +-
 drivers/iio/frequency/adf4350.c                    |    7 +-
 drivers/iio/iio_core.h                             |    9 +
 drivers/iio/imu/Kconfig                            |   11 +
 drivers/iio/imu/Makefile                           |    2 +
 drivers/iio/imu/inv_mpu6050/Kconfig                |    1 +
 drivers/iio/imu/inv_mpu6050/inv_mpu_core.c         |  124 +-
 drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h          |    6 +
 drivers/iio/imu/kmx61.c                            | 1595 ++++++++++++++++++++
 drivers/iio/industrialio-buffer.c                  |  408 ++---
 drivers/iio/industrialio-core.c                    |   50 +-
 drivers/iio/industrialio-event.c                   |   13 +-
 drivers/iio/industrialio-triggered-buffer.c        |   13 +-
 drivers/iio/inkern.c                               |   30 +-
 drivers/iio/kfifo_buf.c                            |   87 +-
 drivers/iio/light/Kconfig                          |   13 +
 drivers/iio/light/Makefile                         |    1 +
 drivers/iio/light/jsa1212.c                        |  471 ++++++
 drivers/iio/light/lm3533-als.c                     |    2 +-
 drivers/iio/magnetometer/Kconfig                   |   15 +-
 drivers/iio/magnetometer/Makefile                  |    1 -
 drivers/iio/magnetometer/ak09911.c                 |  326 ----
 drivers/iio/magnetometer/ak8975.c                  |  504 +++++--
 drivers/iio/pressure/bmp280.c                      |  150 +-
 drivers/iio/proximity/Kconfig                      |   17 +
 drivers/iio/proximity/Makefile                     |    1 +
 drivers/iio/proximity/sx9500.c                     |  752 +++++++++
 drivers/iio/trigger/iio-trig-sysfs.c               |    2 +
 .../staging/iio/Documentation/iio_event_monitor.c  |   23 +-
 drivers/staging/iio/Documentation/ring.txt         |    8 +-
 drivers/staging/iio/accel/lis3l02dq_core.c         |   13 +-
 drivers/staging/iio/accel/lis3l02dq_ring.c         |    2 +-
 drivers/staging/iio/accel/sca3000_core.c           |   45 +-
 drivers/staging/iio/accel/sca3000_ring.c           |   29 +-
 drivers/staging/iio/adc/ad7192.c                   |    2 +-
 drivers/staging/iio/adc/mxs-lradc.c                |   45 +-
 drivers/staging/iio/iio_dummy_evgen.c              |   17 +
 drivers/staging/iio/iio_dummy_evgen.h              |    6 +
 drivers/staging/iio/iio_simple_dummy.c             |  210 ++-
 drivers/staging/iio/iio_simple_dummy.h             |   13 +-
 drivers/staging/iio/iio_simple_dummy_buffer.c      |   12 +-
 drivers/staging/iio/iio_simple_dummy_events.c      |   66 +-
 drivers/staging/iio/impedance-analyzer/ad5933.c    |   49 +-
 drivers/staging/iio/meter/ade7758.h                |    1 -
 drivers/staging/iio/meter/ade7758_core.c           |   15 +-
 drivers/staging/iio/meter/ade7758_ring.c           |    7 +-
 drivers/staging/iio/meter/ade7759.c                |    2 +-
 include/linux/iio/buffer.h                         |   76 +-
 include/linux/iio/consumer.h                       |   12 +-
 include/linux/iio/iio.h                            |    2 +
 include/linux/iio/kfifo_buf.h                      |    5 +-
 include/linux/iio/types.h                          |   10 +-
 64 files changed, 5314 insertions(+), 1115 deletions(-)
 create mode 100644 drivers/iio/accel/mma9551.c
 create mode 100644 drivers/iio/imu/kmx61.c
 create mode 100644 drivers/iio/light/jsa1212.c
 delete mode 100644 drivers/iio/magnetometer/ak09911.c
 create mode 100644 drivers/iio/proximity/sx9500.c

This breaks the build for me:

drivers/iio/imu/kmx61.c:1563:21: error: ‘kmx61_runtime_suspend’ undeclared here (not in a function)
SET_RUNTIME_PM_OPS(kmx61_runtime_suspend, kmx61_runtime_resume, NULL)

                     ^
include/linux/pm.h:347:21: note: in definition of macro ‘SET_RUNTIME_PM_OPS’
  .runtime_suspend = suspend_fn, \
                     ^
drivers/iio/imu/kmx61.c:1563:44: error: ‘kmx61_runtime_resume’ undeclared here (not in a function)
  SET_RUNTIME_PM_OPS(kmx61_runtime_suspend, kmx61_runtime_resume, NULL)
                                            ^
include/linux/pm.h:348:20: note: in definition of macro ‘SET_RUNTIME_PM_OPS’
  .runtime_resume = resume_fn, \
                    ^

So I don't want to pull it :(

thanks,

greg k-h

d64:

2014-11-05 14:59:48 -0800)

or-3.20a

=80=99 undeclared here (not in a function)

IME_PM_OPS=E2=80=99

=80=99 undeclared here (not in a function)

IME_PM_OPS=E2=80=99

I will look into this.

On Fri, Jan 9, 2015 at 9:43 AM, Daniel Baluta <[email protected]> wro= te:

e:

5d64:

(2014-11-05 14:59:48 -0800)

for-3.20a

=E2=80=99 undeclared here (not in a function)

TIME_PM_OPS=E2=80=99

=80=99 undeclared here (not in a function)

TIME_PM_OPS=E2=80=99

OK. It's my fault :(. I've sent a patch to fix this.

Daniel.

Hi Greg,

Just thought I'd check where we are with this. Are you still OK to take the series and handle the fixup patch in the merge?

Thanks,

Jonathan

Ah, I forgot about it, for some reason I was thinking you would just add it to your tree.

Can you do so, I don't have that patch in my queue anywhere :(

thanks,

greg k-h

Sure - guess that should work.

I'll drop you an updated pull request in a few mins.