Commit Graph

277 Commits

Author SHA1 Message Date
William Breathitt Gray
4075a283ae iio: stx104: Add IIO support for the ADC channels
The Apex Embedded Systems STX104 features 16 channels of single-ended (8
channels of true differential) 16-bit analog input. Differential input
configuration may be selected via a physical jumper on the device.
Similarly, input polarity (unipolar/bipolar) is configured via a
physical jumper on the device.

Input gain selection is available to the user via software, thus
allowing eight possible input ranges: +-10V, +-5V, +-2.5V, +-1.25V,
0 to 10V, 0 to 5V, 0 to 2.5V, and 0 to 1.25V. Four input gain
configurations are supported: x1, x2, x4, and x8.

This ADC resolution is 16-bits (1/65536 of full scale). Analog input
samples are taken on software trigger; neither FIFO sampling nor
interrupt triggering is supported by this driver.

The Apex Embedded Systems STX104 is primarily an analog-to-digital
converter device. The STX104 IIO driver was initially placed in the DAC
directory because only the DAC portion of the STX104 was supported at
the time. Now that ADC support has been added to the STX104 IIO driver,
the driver should be moved to the more appropriate ADC directory.

Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-09-03 17:25:53 +01:00
Gwenhael Goavec-Merou
7f270bc9a2 iio: dac: AD8801: add Analog Devices AD8801/AD8803 support
Add support for Analog Devices AD8801/AD8803, 8 channels 8bits, Digital to
Analog converters.

Signed-off-by: Gwenhael Goavec-Merou <gwenhael.goavec-merou@trabucayre.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-08-29 18:20:01 +01:00
Colin Ian King
9d47964bfd iio: ad5755: fix off-by-one on devnr limit check
The comparison for devnr limits is off-by-one, the current check
allows 0 to AD5755_NUM_CHANNELS and the limit should be in fact
0 to AD5755_NUM_CHANNELS - 1.  This can lead to an out of bounds
write to pdata->dac[devnr]. Fix this by replacing > with >= on the
comparison.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Fixes: c947459979 ("iio: ad5755: add support for dt bindings")
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-08-29 16:15:24 +01:00
William Breathitt Gray
3b8df5fd52 iio: Add IIO support for the Measurement Computing CIO-DAC family
The Measurement Computing CIO-DAC is a family of 16-bit and 12-bit
analog output devices. The analog outputs are from AD660BN/AD7237
converters with each output buffered by an OP-27. Voltage ranges are
configured via physical jumpers on the device.

This driver does not support the devices' simulataneous update mode; the
XFER jumper option should be deselected for all analog output channels.

This driver provides IIO support for the Measurement Computing CIO-DAC
family: CIO-DAC16, CIO-DAC08, and PC104-DAC06. The base port addresses
for the devices may be configured via the base array module parameter.

Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-24 19:58:43 +01:00
Gregor Boirie
bc2b7dab62 iio:core: timestamping clock selection support
Adds a new per-device sysfs attribute "current_timestamp_clock" to allow
userspace to select a particular POSIX clock for buffered samples and
events timestamping.

Following clocks, as listed in clock_gettime(2), are supported:
CLOCK_REALTIME, CLOCK_MONOTONIC, CLOCK_MONOTONIC_RAW,
CLOCK_REALTIME_COARSE, CLOCK_MONOTONIC_COARSE, CLOCK_BOOTTIME and
CLOCK_TAI.

Signed-off-by: Gregor Boirie <gregor.boirie@parrot.com>
Acked-by: Sanchayan Maity <maitysanchayan@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-06-30 19:41:38 +01:00
Greg Kroah-Hartman
3c9a6793bd Second round of new iio device support, features and cleanups in the 4.8 cycle
Firstly some contact detail updates:
 * NXP took over freescale. Update the mma8452 header to reflect this.
 * Martin Kepplinger email address change in mma8452 header.
 * Adriana Reus has changed email address. Update .mailmap.
 * Matt Ranostay has changed email address. Update .mailmap.
 
 New Device Support
 * max1363
   - add the missing i2c_device_ids for a couple of parts so they can actually
     be used.
 * ms5867
   - add device ids for ms5805 and ms5837 parts.
 
 New Features
 * ad5755
   - DT support.  This one was a bit controversial and under review for a long
     time.  Still no one could come up with a better solution.
 * stx104
   - add gpio support
 * ti-adc081c
   - Add ACPI device ID matching.
 
 Core changes
 * Refuse to register triggers with duplicate names.  There is no way to
   distinguish between them so this makes no sense.  A few drivers do not
   generate unique names for each instance of the device present.  We can't
   fix this without changing ABI so leave them and wait for someone to
   actually take the rare step of two identical accelerometers on the same
   board.
 * buffer-dma
   - use ARRAY_SIZE in a few appropriate locations.
 
 Tools
 * Fix the fact that the --trigger-num option in generic_buffer didn't allow
   0 which is perfectly valid in the ABI.
 
 Cleanups
 * as3935
   - improve error reporting.
   - remove redundant zeroing of a field in iio_priv.
 * gp2ap020a00f
   - use the iio_device_claim_*_mode helpers rather than open coding locking
   around mode changes.
 * isl29125
   - use the iio_device_claim_*_mode helpers rather than open coding locking.
 * lidar
   - use the iio_device_claim_*_mode helpers rather than open coding locking.
 * mma8452
   - more detail in devices supported description in comments (addresses and
   similar)
 * sca3000
   - add a missing error check.
 * tcs3414
   - use the iio_device_claim_*_mode helpers rather than open coding locking.
 * tcs3472
   - use the iio_device_claim_*_mode helpers rather than open coding locking.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIcBAABCAAGBQJXdAT2AAoJEFSFNJnE9BaIq68P/3Z0q1lc1cb+K8HV5jgukEKw
 eoxZa5lFIOuHAGeXo9GAdJiH5oT/yAIhadf3gzuuQLaTJwWYKD51aPVwgpT5M2+x
 Bnu2XiYcaoIm/Foat70ycjeYaGxO/xO2vbLp5v0BJV2ujvjm/oCKw5pxYeU4Jm63
 iKaZo9jn/HoshOMpZBrcPZ7Q1TogRdopBNe2fsc8nXFFsv8ODjOZ9Nebs2lk36e+
 PWLUWfSkv2LMBSE2LOFyjSW8E4ItBBngBcyqBTFiiln7mpXU5Vv2QSvUhpP2YjUZ
 rxKvDiG7ADuxMr901whASxyCO180yCxTRIcBsN8oP73gTGHrJnMT0Sptfz7AUUVN
 gJneiy+iy3TecJ/R6w/DnNzqmZMiEVqlYGkdXVGu8SXrKWilvzcTp5iTmDVM5zLb
 1fDZxjbLdNJuHzoSYNiCBcnfzIixOAyKTGFi3jUaPPQ/Lc1qfmgerWWlOzKeUgCZ
 5Bzak8MvWuxcO7jkMG8mbARufy3Nu6eh8a39JXFhViGtTtySydMa8eXdYPjqoAtv
 vgwJNh9U53yYui8i7vU90dM3gJaGg5a4R6EjEKCYcEJf6kM9Go8xCvjU8YWPtIKk
 rfykpPkKcQzbax07YKvb4f015x7r0V6WCGJjPn0Fi14ugNGJJ6M88l+2UcXcx1zS
 RRtVRD49Le7pIDCs1Rqn
 =6Lja
 -----END PGP SIGNATURE-----

Merge tag 'iio-for-4.8b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

Second round of new iio device support, features and cleanups in the 4.8 cycle

Firstly some contact detail updates:
* NXP took over freescale. Update the mma8452 header to reflect this.
* Martin Kepplinger email address change in mma8452 header.
* Adriana Reus has changed email address. Update .mailmap.
* Matt Ranostay has changed email address. Update .mailmap.

New Device Support
* max1363
  - add the missing i2c_device_ids for a couple of parts so they can actually
    be used.
* ms5867
  - add device ids for ms5805 and ms5837 parts.

New Features
* ad5755
  - DT support.  This one was a bit controversial and under review for a long
    time.  Still no one could come up with a better solution.
* stx104
  - add gpio support
* ti-adc081c
  - Add ACPI device ID matching.

Core changes
* Refuse to register triggers with duplicate names.  There is no way to
  distinguish between them so this makes no sense.  A few drivers do not
  generate unique names for each instance of the device present.  We can't
  fix this without changing ABI so leave them and wait for someone to
  actually take the rare step of two identical accelerometers on the same
  board.
* buffer-dma
  - use ARRAY_SIZE in a few appropriate locations.

Tools
* Fix the fact that the --trigger-num option in generic_buffer didn't allow
  0 which is perfectly valid in the ABI.

Cleanups
* as3935
  - improve error reporting.
  - remove redundant zeroing of a field in iio_priv.
* gp2ap020a00f
  - use the iio_device_claim_*_mode helpers rather than open coding locking
  around mode changes.
* isl29125
  - use the iio_device_claim_*_mode helpers rather than open coding locking.
* lidar
  - use the iio_device_claim_*_mode helpers rather than open coding locking.
* mma8452
  - more detail in devices supported description in comments (addresses and
  similar)
* sca3000
  - add a missing error check.
* tcs3414
  - use the iio_device_claim_*_mode helpers rather than open coding locking.
* tcs3472
  - use the iio_device_claim_*_mode helpers rather than open coding locking.
2016-06-29 15:35:01 -07:00
Sean Nyekjaer
c947459979 iio: ad5755: add support for dt bindings
Devicetree can provide platform data

Signed-off-by: Sean Nyekjaer <sean.nyekjaer@prevas.dk>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-06-27 21:09:00 +01:00
William Breathitt Gray
765550e4d9 iio: stx104: Add GPIO support for the Apex Embedded Systems STX104
The Apex Embedded Systems STX104 device features eight lines of digital
I/O (four digital inputs and four digital outputs). This patch adds GPIO
support for these eight lines of digital I/O via GPIOLIB.

Cc: Alexandre Courbot <gnurou@gmail.com>
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-06-27 20:59:11 +01:00
Linus Torvalds
a50094a481 Staging fixes for 4.7-rc4
Here are a number of IIO and Staging bugfixes for 4.7-rc4.
 
 Nothing huge, the normal amount of iio driver fixes, and some small
 staging driver bugfixes for some reported problems (2 are reverts of
 patches that went into 4.7-rc1).  All have been in linux-next with no
 reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iEYEABECAAYFAldlbB4ACgkQMUfUDdst+ykpkACggRrmGzuiDe1hQHbq1J+jaokX
 V2kAoK0WiQ66uv4nd1FbLx2CcUb0xgI5
 =c2n1
 -----END PGP SIGNATURE-----

Merge tag 'staging-4.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull IIO and staging fixes from Greg KH:
 "Here are a number of IIO and staging bugfixes for 4.7-rc4.

  Nothing huge, the normal amount of iio driver fixes, and some small
  staging driver bugfixes for some reported problems (2 are reverts of
  patches that went into 4.7-rc1).  All have been in linux-next with no
  reported issues"

* tag 'staging-4.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (24 commits)
  Revert "Staging: rtl8188eu: rtw_efuse: Use sizeof type *pointer instead of sizeof type."
  Revert "Staging: drivers: rtl8188eu: use sizeof(*ptr) instead of sizeof(struct)"
  staging: lustre: lnet: Don't access NULL NI on failure path
  iio: hudmidity: hdc100x: fix incorrect shifting and scaling
  iio: light apds9960: Add the missing dev.parent
  iio: Fix error handling in iio_trigger_attach_poll_func
  iio: st_sensors: Disable DRDY at init time
  iio: st_sensors: Init trigger before irq request
  iio: st_sensors: switch to a threaded interrupt
  iio: light: bh1780: assign a static name
  iio: bh1780: dereference the client properly
  iio: humidity: hdc100x: fix IIO_TEMP channel reporting
  iio:st_pressure: fix sampling gains (bring inline with ABI)
  iio: proximity: as3935: fix buffer stack trashing
  iio: proximity: as3935: remove triggered buffer processing
  iio: proximity: as3935: correct IIO_CHAN_INFO_RAW output
  max44000: Remove scale from proximity
  iio: humidity: am2315: Remove a stray unlock
  iio: humidity: hdc100x: correct humidity integration time mask
  iio: pressure: bmp280: fix error message for wrong chip id
  ...
2016-06-18 06:05:28 -10:00
William Breathitt Gray
75897b7c5e iio: stx104: Allow build for X86_64
With the introduction of the ISA_BUS_API Kconfig option, ISA-style
drivers may be built for X86_64 architectures. This patch changes the
ISA Kconfig option dependency of the Apex Embedded Systems STX104 DAC
driver to ISA_BUS_API, thus allowing it to build for X86_64 as it is
expected to.

Cc: Hartmut Knaack <knaack.h@gmx.de>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Peter Meerwald-Stadler <pmeerw@pmeerw.net>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-06-17 20:21:12 -07:00
Greg Kroah-Hartman
03cce00b4b First round of iio fixes for the 4.7 cycle.
A slightly bumper set due to travel delaying the pull request and a fair few
 issues with the recent merge window patches.  Patches all over the place.
 The st-sensors one is probably the most involved, but definitly solves the
 issues seen.  Note there are some other issues around that handler
 (and the fact that a lot of boards tie a level interrupt chip to an
 edge interrupt only irq chip).  These are not regressions however, so
 will turn up the slow route.
 
 * core
   - iio_trigger_attach_pollfunc had some really badly wrong error handling.
   Another nasty triggered whilst chasing down issues with the st sensors
   rework below.
 * ad5592r
   - fix an off by one error when allocating channels.
 * am2315
   - a stray mutex unlock before we ever take the lock.
 * apds9960
   - missing a parent in the driver model (which should be the i2c device).
   Result is it doesn't turn up under /sys/bus/i2c/devices which some
   userspace code uses for repeatable device identification.
 * as3935
   - ABI usage bug which meant a processed value was reported as raw. Now
     reporting scale as well to ensure userspace has the info it needs.
   - Don't return processed value via the buffer - it doesn't conform to
     the ABI and will overflow in some cases.
   - Fix a wrongly sized buffer which would overflow trashing part of the
     stack.  Also move it onto the heap as part of the fix.
 * bh1780
   - a missing return after write in debugfs lead to an incorrect read and
     a null pointer dereference.
   - dereferencing the wrong pointer in suspend and resume leading to
     unpredictable results.
   - assign a static name to avoid accidentally ending up with no name if
     loaded via device tree.
 * bmi160
   - output data rate for the accelerometer was incorrectly reported. Fix it.
   - writing the output data rate was also wrong due to reverse parameters.
 * bmp280
   - error message for wrong chip ID gave the wrong expected value.
 * hdc100x
   - mask for writing the integration time was wrong allowin g us to get
   'stuck' in a particular value with no way back.
   - temperature reported in celsius rather than millicelsius as per the
   ABI.
   - Get rid of some incorrect data shifting which lead to readings being
   rather incorrect.
 * max44000
   - drop scale attribute for proximity as it is an unscaled value (depends
     on what is in range rather than anything knowable at the detector).
 * st-pressure
   - ABI compliance fixes - units were wrong.
 * st-sensors
   - We introduced some nasty issues with the recent switch over to a
   a somewhat threaded handler in that we broke using a software trigger
   with these devices.  Now do it properly.  It's a larger patch than ideal
   for a fix, but the logic is straight forward.
   - Make sure the trigger is initialized before requesting the interrupt.
   This matters now the interrupt can be shared. Before it was ugly and wrong
   but short of flakey hardware could not be triggered.
   - Hammer down the dataready pin at boot - otherwise with really
   unlucky timing things could get interestingly wedged requiring a hard power
   down of the chip.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIcBAABCAAGBQJXVxMzAAoJEFSFNJnE9BaI3QUP/2TLXJ4S+jNFSGslMmq9Ztqm
 fPGoyPf2nfJCzwgPFK7Yku8mFhqaRbbZrM0m1IA7hYbuZMXZjjQnSrIiDqsDuvXy
 1mK3mieCu8hPFTcvVUp1q9HwrrEFIke52LIH6urSDpr1IIbhJQ2ZwXjZIJGhlukc
 yFwMuA7gz/akc3war+OlS1bbEOe4OuikWMP3Fc3QGKPR7C92M0S8oRyZwBmB2vqu
 1lqCzS0JxL3Lz3TqDXkBd+77My7S4af/F7l8JfeCDBoE4zycASP1LUgiSD2aB3Rq
 hi7hrQjPCFk6rxZ+wFIyC8V0AGeGdEDpQ4JW9rgzDC/KO9Z3Wyq/h5UrQqsnZW0G
 xbJgLF3Wa0noh/bT0yIGZGcenM57QIJ0vTEymmikbWCNQfzqSG9a0SM7zMukB6Lr
 IAvMbF3Q3n/d4rzVOE5C9vRPRnG2jICxmA3EKp7blV0hRdd197J7UfN8ExG+9zC7
 JxqQh5LLu76Ql7TJqQh7sZl/6Xi0DnUm+wqaxyCgtaZjmsVZ58S6G6E2eefO5Hma
 r3VUfthe7N0wnWwCs2RMBkBynhb7+4G11m2jp1a4PMYCYg4FhYP7QdDkeDiOSXbG
 s9Y1ILLI7ufzCyKf5GID7/FtAjdJahVR2ldIy7MwUqw7zAyjsm+ujIpTGZ8iYUvb
 whHwMtLLTnyB8Zj81LRD
 =EEPO
 -----END PGP SIGNATURE-----

Merge tag 'iio-fixes-for-4.7a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus

Jonathan writes:

First round of iio fixes for the 4.7 cycle.

A slightly bumper set due to travel delaying the pull request and a fair few
issues with the recent merge window patches.  Patches all over the place.
The st-sensors one is probably the most involved, but definitly solves the
issues seen.  Note there are some other issues around that handler
(and the fact that a lot of boards tie a level interrupt chip to an
edge interrupt only irq chip).  These are not regressions however, so
will turn up the slow route.

* core
  - iio_trigger_attach_pollfunc had some really badly wrong error handling.
  Another nasty triggered whilst chasing down issues with the st sensors
  rework below.
* ad5592r
  - fix an off by one error when allocating channels.
* am2315
  - a stray mutex unlock before we ever take the lock.
* apds9960
  - missing a parent in the driver model (which should be the i2c device).
  Result is it doesn't turn up under /sys/bus/i2c/devices which some
  userspace code uses for repeatable device identification.
* as3935
  - ABI usage bug which meant a processed value was reported as raw. Now
    reporting scale as well to ensure userspace has the info it needs.
  - Don't return processed value via the buffer - it doesn't conform to
    the ABI and will overflow in some cases.
  - Fix a wrongly sized buffer which would overflow trashing part of the
    stack.  Also move it onto the heap as part of the fix.
* bh1780
  - a missing return after write in debugfs lead to an incorrect read and
    a null pointer dereference.
  - dereferencing the wrong pointer in suspend and resume leading to
    unpredictable results.
  - assign a static name to avoid accidentally ending up with no name if
    loaded via device tree.
* bmi160
  - output data rate for the accelerometer was incorrectly reported. Fix it.
  - writing the output data rate was also wrong due to reverse parameters.
* bmp280
  - error message for wrong chip ID gave the wrong expected value.
* hdc100x
  - mask for writing the integration time was wrong allowin g us to get
  'stuck' in a particular value with no way back.
  - temperature reported in celsius rather than millicelsius as per the
  ABI.
  - Get rid of some incorrect data shifting which lead to readings being
  rather incorrect.
* max44000
  - drop scale attribute for proximity as it is an unscaled value (depends
    on what is in range rather than anything knowable at the detector).
* st-pressure
  - ABI compliance fixes - units were wrong.
* st-sensors
  - We introduced some nasty issues with the recent switch over to a
  a somewhat threaded handler in that we broke using a software trigger
  with these devices.  Now do it properly.  It's a larger patch than ideal
  for a fix, but the logic is straight forward.
  - Make sure the trigger is initialized before requesting the interrupt.
  This matters now the interrupt can be shared. Before it was ugly and wrong
  but short of flakey hardware could not be triggered.
  - Hammer down the dataready pin at boot - otherwise with really
  unlucky timing things could get interestingly wedged requiring a hard power
  down of the chip.
2016-06-07 22:26:20 -07:00
Linus Torvalds
2f37dd131c Staging and IIO driver update for 4.7-rc1
Here's the big staging and iio driver update for 4.7-rc1.
 
 I think we almost broke even with this release, only adding a few more
 lines than we removed, which isn't bad overall given that there's a
 bunch of new iio drivers added.  The Lustre developers seem to have
 woken up from their sleep and have been doing a great job in cleaning up
 the code and pruning unused or old cruft, the filesystem is almost
 readable :)
 
 Other than that, just a lot of basic coding style cleanups in the churn.
 All have been in linux-next for a while with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iEYEABECAAYFAlc/00QACgkQMUfUDdst+ynXYQCdG9oEsw4CCItbjGfQau5YVGbd
 TOcAnA19tZz+Wcg3sLT8Zsm979dgVvDt
 =9UG/
 -----END PGP SIGNATURE-----

Merge tag 'staging-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging and IIO driver updates from Greg KH:
 "Here's the big staging and iio driver update for 4.7-rc1.

  I think we almost broke even with this release, only adding a few more
  lines than we removed, which isn't bad overall given that there's a
  bunch of new iio drivers added.

  The Lustre developers seem to have woken up from their sleep and have
  been doing a great job in cleaning up the code and pruning unused or
  old cruft, the filesystem is almost readable :)

  Other than that, just a lot of basic coding style cleanups in the
  churn.  All have been in linux-next for a while with no reported
  issues"

* tag 'staging-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (938 commits)
  Staging: emxx_udc: emxx_udc: fixed coding style issue
  staging/gdm724x: fix "alignment should match open parenthesis" issues
  staging/gdm724x: Fix avoid CamelCase
  staging: unisys: rename misleading var ii with frag
  staging: unisys: visorhba: switch success handling to error handling
  staging: unisys: visorhba: main path needs to flow down the left margin
  staging: unisys: visorinput: handle_locking_key() simplifications
  staging: unisys: visorhba: fail gracefully for thread creation failures
  staging: unisys: visornic: comment restructuring and removing bad diction
  staging: unisys: fix format string %Lx to %llx for u64
  staging: unisys: remove unused struct members
  staging: unisys: visorchannel: correct variable misspelling
  staging: unisys: visorhba: replace functionlike macro with function
  staging: dgnc: Need to check for NULL of ch
  staging: dgnc: remove redundant condition check
  staging: dgnc: fix 'line over 80 characters'
  staging: dgnc: clean up the dgnc_get_modem_info()
  staging: lustre: lnet: enable configuration per NI interface
  staging: lustre: o2iblnd: properly set ibr_why
  staging: lustre: o2iblnd: remove last of kiblnd_tunables_fini
  ...
2016-05-20 22:20:48 -07:00
Dan Carpenter
04bf02175f iio: dac: ad5592r: Off by one bug in ad5592r_alloc_channels()
The > here should be >= or we go beyond the end for the array.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-05-04 10:52:43 +01:00
William Breathitt Gray
9c2cfc19e6 iio: stx104: Utilize the module_isa_driver and max_num_isa_dev macros
The Apex Embedded Systems STX104 DAC drivers does not do anything
special in module init/exit. This patch eliminates the module init/exit
boilerplate code by utilizing the module_isa_driver macro.

Additionally, the max_num_isa_dev macro is utilized to simplify the
determination of maximum possible STX104 devices in the system.

Cc: Jonathan Cameron <jic23@kernel.org>
Cc: Hartmut Knaack <knaack.h@gmx.de>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-05-02 09:32:04 -07:00
William Breathitt Gray
136c956845 iio: stx104: Add X86 dependency to STX104 Kconfig option
The Apex Embedded Systems STX104 DAC driver expects the STX104 device to
be I/O port-mapped addressable on an X86 platform. This patch adds an
explicit X86 dependency to the STX104 configuration option to prevent
building on non-X86 architectures.

Cc: Jonathan Cameron <jic23@kernel.org>
Cc: Hartmut Knaack <knaack.h@gmx.de>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-05-02 09:32:04 -07:00
Paul Cercueil
56ca9db862 iio: dac: Add support for the AD5592R/AD5593R ADCs/DACs
This patch adds support for the AD5592R (spi) and AD5593R (i2c)
ADC/DAC/GPIO devices.

Signed-off-by: Paul Cercueil <paul.cercueil@analog.com>
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-04-10 14:29:06 +01:00
Joachim Eastwood
9bbccbe11a iio: dac: add NXP LPC18xx DAC driver
Add base support for the 10-bit DAC peripheral found
on NXP LPC18xx/43xx SoCs.

This is a minimal driver that does not support DMA or
interrupts.

User manual with register description can be found on:
LPC18xx: www.nxp.com/documents/user_manual/UM10430.pdf
LPC43xx: www.nxp.com/documents/user_manual/UM10503.pdf

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-03-12 18:12:37 +00:00
Sanchayan Maity
1b983bf42f iio: dac: vf610_dac: Add IIO DAC driver for Vybrid SoC
Add driver support for DAC peripheral on Vybrid SoC.

Signed-off-by: Sanchayan Maity <maitysanchayan@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-02-24 20:52:55 +00:00
Greg Kroah-Hartman
d9750a2f9e 2nd round of new IIO device support, features and cleanups for the 4.6 cycle.
New Device Support
 * Apex stx104 DAC
   - new driver for this PC104 board. Right now DAC support only.
 * ADI ad5064
   - Add support for ad5625, ad5627, ad5645, ad5665, ad5667 DACs.
   - Add support for Linear Technology ltc2606, ltc2607, ltc2609, ltc2616,
     ltc2617, ltc2619, ltc2626, ltc2627 and ltc2629.
 * ADI ad7192
   - add support for the ad7193
 * Invensense mpu6050
   - substantial rework of driver to use regmap allowing SPI support extending
     the now split driver to cover the MPU6000.
 * TI adc0832
   - new driver supporting ADC0831, ADC0832, ADC0834 and ADC0838 ADCs.
 * TI ads1015
   - new driver, note that there is an existing hwmon driver. The long term
     intention is to probably remove the hwmon driver but for now we just have
     guards in place to ensure this driver is not built if that one is enabled.
 * TI afe4403
   - new driver for this heart rate monitor / pulse oximeter front end chip.
 * TI afe4404
   - new driver for this heart rate monitor / pulse oximeter front end chip.
 
 Staging Graduations
 * mxs-lradc
   - A combined general purpose and touch screen (input) device driver.
     Originally held in staging to allow reworking into and MFD but as
     that wasn't happening and isn't an absolute requirement we are moving
     it out of staging.
 
 Driver new features
 * ms5611
   - triggered buffer support
   - IIO_CHAN_INFO_SCALE to aid the triggered buffer support.
 
 Driver cleanups / reworks / fixes
 * ad5064
   - Use an enum for the register map layout to allow support of additional
     chips (precursor to the new support listed above).
   - Structural driver changes to allow support of the slightly different
     handling for the ltc parts above.
 * ad5933
   - drop an exceptional & unnecessary for a function pointer.
 * ad7606
   - Cleanup the repeated copies of pm ops.
   - consolidate the various channels specs via a sport of rearranging so only
     one version is needed.
 * atlas ph sensor
   - add select IRQ_WORK
 * hmc8543 (soon to move out of staging)
   - Comment style fixes
   - functionality of suspend and resume was swapped.
 * spear-adc
   - use devm_clk_dev instead of managing the clk lifetime by hand.
 
 Core
 * Use new dmaengine_terminate_sync call to avoid a theoretical race.
 * Fix docs for mlock in struct iio_dev as it is correctly taken in some
   drivers (docs used to say for core only).
 * Add a helper function for calculating the scan index storage size within
   the core cutting out some cut and paste versions of the same code.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIcBAABCAAGBQJWwJeMAAoJEFSFNJnE9BaI9N8P/3nvhVTXXTkwl8UF22dAyRhP
 l6Szj8vk6M9yJ0z8sBPPzKRoPOESuZU/N8BndN5w17Em3fU9k3Qe6CaUYGTKziFt
 hzuL1ySpnrGphKZR6AfONKR6m+yfk+PYVPJlMG1EEdop2nkMyezoZxh9yjNXfm9H
 gekh41rz8LrAluG4n88XdJMzIGBRfup7PPt+sJ5Ao6AMrrQVrx4DA+dTaoVJ50ED
 rvh1DIwUDH158a27Wgc5QgxyA2dSL+65KiD6HR69XKq3exUZ6AlvXHCHwOZR8/xp
 /MtBNP7V9C0vO7PBNIxRQWIdsLRQdfaiCJSWEHH1lqxQK2S6DFYzSXFCA8lQ448Q
 1qH8G2JiYzbzPVX9noXvuQJJYnGa1xsKvdOGFzi/mRXEGTaygPVYEjn2JN4WzRho
 zgAdLdI6RkPVuqDp7Mliu8lsC9giQoLD22Ln2z9AzF1PDMrCD+p2Ff+q+1xQip/q
 8B8AMniPkK8Bn5mMAGPrN6FqUt5cqtnRkECC/Yzg8B21qLcefeFmcwSecmOrd331
 +7PWWDOWCmHVMweo9whZhaS3yZFNerl7G2DzwDI76So+eeBFikFvgitTMbuWWlyG
 SXMqUqfelBs3SpftKlAKXxZ4PK/MEo45LzNSfbi0J69zpIFTqICR9nnN8/rN9ew0
 KhZtcL9Q1H6yJwGuefdp
 =LIQe
 -----END PGP SIGNATURE-----

Merge tag 'iio-for-4.6b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

2nd round of new IIO device support, features and cleanups for the 4.6 cycle.

New Device Support
* Apex stx104 DAC
  - new driver for this PC104 board. Right now DAC support only.
* ADI ad5064
  - Add support for ad5625, ad5627, ad5645, ad5665, ad5667 DACs.
  - Add support for Linear Technology ltc2606, ltc2607, ltc2609, ltc2616,
    ltc2617, ltc2619, ltc2626, ltc2627 and ltc2629.
* ADI ad7192
  - add support for the ad7193
* Invensense mpu6050
  - substantial rework of driver to use regmap allowing SPI support extending
    the now split driver to cover the MPU6000.
* TI adc0832
  - new driver supporting ADC0831, ADC0832, ADC0834 and ADC0838 ADCs.
* TI ads1015
  - new driver, note that there is an existing hwmon driver. The long term
    intention is to probably remove the hwmon driver but for now we just have
    guards in place to ensure this driver is not built if that one is enabled.
* TI afe4403
  - new driver for this heart rate monitor / pulse oximeter front end chip.
* TI afe4404
  - new driver for this heart rate monitor / pulse oximeter front end chip.

Staging Graduations
* mxs-lradc
  - A combined general purpose and touch screen (input) device driver.
    Originally held in staging to allow reworking into and MFD but as
    that wasn't happening and isn't an absolute requirement we are moving
    it out of staging.

Driver new features
* ms5611
  - triggered buffer support
  - IIO_CHAN_INFO_SCALE to aid the triggered buffer support.

Driver cleanups / reworks / fixes
* ad5064
  - Use an enum for the register map layout to allow support of additional
    chips (precursor to the new support listed above).
  - Structural driver changes to allow support of the slightly different
    handling for the ltc parts above.
* ad5933
  - drop an exceptional & unnecessary for a function pointer.
* ad7606
  - Cleanup the repeated copies of pm ops.
  - consolidate the various channels specs via a sport of rearranging so only
    one version is needed.
* atlas ph sensor
  - add select IRQ_WORK
* hmc8543 (soon to move out of staging)
  - Comment style fixes
  - functionality of suspend and resume was swapped.
* spear-adc
  - use devm_clk_dev instead of managing the clk lifetime by hand.

Core
* Use new dmaengine_terminate_sync call to avoid a theoretical race.
* Fix docs for mlock in struct iio_dev as it is correctly taken in some
  drivers (docs used to say for core only).
* Add a helper function for calculating the scan index storage size within
  the core cutting out some cut and paste versions of the same code.
2016-02-14 11:10:38 -08:00
William Breathitt Gray
97a445dad3 iio: Add IIO support for the DAC on the Apex Embedded Systems STX104
The Apex Embedded Systems STX104 is a 16-channel 16-bit analog input and
2-channel 16-bit analog output PC/104 card. The STX104 incorporates a
large one mega-sample FIFO.

This driver provides IIO support for the 2-channel DAC on the STX104.
The base port addresses for the devices may be configured via the "base"
module parameter array.

Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-02-13 20:54:14 +00:00
Lars-Peter Clausen
f47732c0da iio:ad5064: Add AD5625/AD5627/AD5645/AD5647/AD4665/AD5657 support
The AD5625/AD5645/AD5665 are a family of 4 channel DACs with 12-bit, 14-bit
and 16-bit precision respectively. The devices come in 3 flavors in terms
of built-in reference, either no built-in reference, built-in 1.25V
reference or built-in 2.5V reference.

The AD5627/AD5647/AD5667 are similar to the AD5625/AD5645/AD5665 except
that they have 2 instead of 4 channels.

While these new devices are mostly register map compatible with the
existing devices support by the driver some offsets and register addresses
have been shuffled around. To accommodate this introduce a new register map
layout. For the lack of a better name we will just call it version 2.

Datasheets:
	http://www.analog.com/media/en/technical-documentation/data-sheets/AD5625R_5645R_5665R_5625_5665.pdf
	http://www.analog.com/media/en/technical-documentation/data-sheets/AD5627R_5647R_5667R_5627_5667.pdf

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-02-08 18:51:26 +00:00
Lars-Peter Clausen
4946ff5858 iio:ad5064: Use a enum for the register map layout type
Currently the ad5064 only supports two different register map variations
and this is represented by a bool. This patch changes since to a enum so
we can support more variations in the future.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-02-08 18:41:38 +00:00
Lars-Peter Clausen
d23b2e8a5c iio:ad5064: List support LTC devices in Kconfig
List the newly support LTC devices in the Kconfig entry for the AD5064
driver.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-02-08 18:41:12 +00:00
Marc Andre
8d144c9608 iio:ad5064: Add support for ltc2617 and similar devices
The Linear Technology LTC2606, LTC2607, LTC2609, LTC2616, LTC2617,
LTC2619, LTC2626, LTC2627 and LTC2629 devices are very similar
to the AD5064 device.

This patch adds support for those devices.

Datasheet for LTC devices:
LTC2606, LTC2616, LTC2626: http://www.linear.com/docs/6398
LTC2607, LTC2617, LTC2627: http://www.linear.com/docs/8977
LTC2709, LTC2619, LTC2629: http://www.linear.com/docs/8477

Signed-off-by: Marc Andre <marc.andre@netline.ch>
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-02-08 18:38:58 +00:00
Marc Andre
78f585feed iio:ad5064: Structural changes to support LTC2617
This patch makes minor structural changes to support specifics
for LTC2617 DAC. This DAC requires different handling of the
power down modes. The configuration to actually support the
DAC will be submitted in a secondary patch.

Adjust the DECLARE_AD5064_CHANNELS() macro to accept a new
ext_info parameter. This allows to use different power down
modes per DAC. (e.g. DAC only support 90kohm to ground)

Add the chip_info parameter "powerdown_ltc". This parameter is
used in the ad5064_sync_powerdown_mode() function to handle the
power down command for LTC diffently. For those devices the
power down command must be addressed to the channel.

Signed-off-by: Marc Andre <marc.andre@netline.ch>
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-02-08 18:37:24 +00:00
Greg Kroah-Hartman
5ba907a949 Merge 4.5-rc3 into staging-next
We want the upstream staging fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-07 17:34:04 -08:00
Ricardo Ribalda Delgado
131497acd8 iio: add ad5761 DAC driver
ad5761 is a 1-channel DAC with configurable output range.
The driver uses the regulator interface for its voltage ref.

It shares its register layout with ad5761r, ad5721 and ad5721r.

Differences:
ad5761* are 16 bit, ad5721* are 12 bits.
ad57*1r have an internal reference.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-01-24 14:46:21 +00:00
Yong Li
97a249e98a iio: dac: mcp4725: set iio name property in sysfs
Without this change, the name entity for mcp4725 is missing in
/sys/bus/iio/devices/iio\:device*/name

With this change, name is reported correctly

Signed-off-by: Yong Li <sdliyong@gmail.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-01-09 16:33:41 +00:00
Akinobu Mita
35f739679a iio: dac: mcp4725: Add basic support for MCP4726
MCP4726 is a single channel 12-bit DAC.  We can support MCP4726 with
a little changes to mcp4725 driver.  In power-down mode, they have
different selection of VOUT pull-down registers.

MCP4726 also has features:
 - Output gain options: 1x, 2x
 - Voltage reference selection: VDD, VREF (Unbuffered or Buffered)

But these are not supported in this change. (1x gain, VDD is selected)

datasheet: http://ww1.microchip.com/downloads/en/DeviceDoc/22272C.pdf

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Jonathan Cameron <jic23@kernel.org>
Cc: Hartmut Knaack <knaack.h@gmx.de>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Peter Meerwald <pmeerw@pmeerw.net>
Cc: linux-iio@vger.kernel.org
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-01-03 17:42:59 +00:00
Greg Kroah-Hartman
819db468b2 First set of IIO fixes for the 4.4 cycle.
This set does not include those for issues introduced during the merge
 window.  Fixes of those will follow in a future series.
 
 * ad5064
   - Make sure the local i2c_write returns 0 on success rather than the
     number of bytes transfered.  Otherwise we report an error on all writes.
   - Fix a shift for ad5629 and ad5669 which gives incorrect DAC output on
     these parts.
 * ad7793
   - The product ID on the datasheet is wrong.  Fix it in the driver.
 * IIO_DUMMY_EVGEN
   - select IRQ_WORK as a dependency.
 * lpc32xx
   - make sure clock is prepared before enabling.
 * si7020
   - data byte order was reversed. Fix it.
 * vf610
   - Internal temperature calculation was wrong if a different
     reference voltage was used.  Now use a linear interpolation
     function to make it work over the full range.
   - Fix a division by zero in the case of a device tree property
     not being present (same issue two fixes).
 * xilinx XADC
   - VREFN scale was wrong - fix it.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIcBAABCAAGBQJWSH0iAAoJEFSFNJnE9BaILcYP/Rb70yJE23oTx6iyMDLip/Im
 7yG+TMh/mFJCrwmpvloRX4IxQ20WApQPEQRaO6ivcoykQ/8eGDK3hrHWiHwYNs9z
 P+q1qxz0F0pnvWHPZ2UZ+p8ZNzuy9ovTSeeuAHQWMVSsPCgiQR3kq0hBVrvV4mVn
 4AQejD0M/x69TWdisZtGJqKBZs44mXHbgqC6Xw/6u0MLpA8ZLHO2XAr9vaSA042T
 PsYXbEMmb/ElRKwadbX4JCqrMsA3FhPx+qD7qPu14bsC8WR4tlNLIBzEmBQJotWf
 8wjK7AF7Af/HMO5KjO6uJe+EdypMq1UjlmqeRWUZIGUlLtmjmkhnRzO4Qahsbx2K
 6TEO1uNhOjg7JQGfeuL9fKMHI6QKkeFIJ/cl2ekRWRwbxS2kOmXA9HTCsxynrdAR
 qC49Eqkbfr/F1vdgDx61JAWgWuZNdxFg3tiD3wP2BMjOipKBuKRt9CvHuOORW7Tp
 aUPruyJduIpcVQBL+wbSElAc4XsjgL4+/KROcfG3x3zWKUjOux73G8WsgaSSQ4Fe
 rP2stYFmZUigIpSW/vTwbdcN8tIT9S/XZjxF/mlP7azIQHyafWTVl6CUlphtewtY
 YZVT2K+t07zQV2NgOi9J+H5yCPG39d1Fb1R4OsWF1Brq2QsQJwqR9Y1ERXiPEJzZ
 DvylTHu0lxP+xgE/Xjuz
 =362F
 -----END PGP SIGNATURE-----

Merge tag 'iio-fixes-for-4.4a' of ssh://ra.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus

Jonathan writes:

First set of IIO fixes for the 4.4 cycle.

This set does not include those for issues introduced during the merge
window.  Fixes of those will follow in a future series.

* ad5064
  - Make sure the local i2c_write returns 0 on success rather than the
    number of bytes transfered.  Otherwise we report an error on all writes.
  - Fix a shift for ad5629 and ad5669 which gives incorrect DAC output on
    these parts.
* ad7793
  - The product ID on the datasheet is wrong.  Fix it in the driver.
* IIO_DUMMY_EVGEN
  - select IRQ_WORK as a dependency.
* lpc32xx
  - make sure clock is prepared before enabling.
* si7020
  - data byte order was reversed. Fix it.
* vf610
  - Internal temperature calculation was wrong if a different
    reference voltage was used.  Now use a linear interpolation
    function to make it work over the full range.
  - Fix a division by zero in the case of a device tree property
    not being present (same issue two fixes).
* xilinx XADC
  - VREFN scale was wrong - fix it.
2015-11-18 13:15:50 -08:00
Linus Torvalds
75f5db39ff spi: Updates for v4.4
Quite a lot of activity in SPI this cycle, almost all of it in drivers
 with a few minor improvements and tweaks in the core.
 
  - Updates to pxa2xx to support Intel Broxton and multiple chip selects.
  - Support for big endian in the bcm63xx driver.
  - Multiple slave support for the mt8173
  - New driver for the auxiliary SPI controller in bcm2835 SoCs.
  - Support for Layerscale SoCs in the Freescale DSPI driver.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABAgAGBQJWOehzAAoJECTWi3JdVIfQTPYH+wYMDG8gAIw2s0AJ4DvVe4qZ
 sOAm1UgUJZxssrEA6BNqbfM0dfRo+oQJKmRd0Dc5n7LEMsYHdI/5yKHk8PCS6ZzD
 iQyQCzbd0thDAqwuPaMP62cyPDHwyJX22VGTsgVnj6AZqAQ+9+g4SPKhFnm1Mlm4
 hmDi6fdSrsqo8k8gkpVN8RFOfVsjAV1dLtAauQRWDHrqMxXURSrKG76eqAqUa5bn
 BLPXBoj5PA0DMLPO2j+ADZwWN723LrI2mSSlc+ThjEX/OIt2OhAoiOTV5RPqaafy
 TIsCkh68q/gYAsL5HtvvmgZByl41FLYiO0Z+rXmWUyMMbnvhZTLws9S2BNpBLuk=
 =DgXG
 -----END PGP SIGNATURE-----

Merge tag 'spi-v4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi updates from Mark Brown:
 "Quite a lot of activity in SPI this cycle, almost all of it in drivers
  with a few minor improvements and tweaks in the core.

   - Updates to pxa2xx to support Intel Broxton and multiple chip selects.
   - Support for big endian in the bcm63xx driver.
   - Multiple slave support for the mt8173
   - New driver for the auxiliary SPI controller in bcm2835 SoCs.
   - Support for Layerscale SoCs in the Freescale DSPI driver"

* tag 'spi-v4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (87 commits)
  spi: pxa2xx: Rework self-initiated platform data creation for non-ACPI
  spi: pxa2xx: Add support for Intel Broxton
  spi: pxa2xx: Detect number of enabled Intel LPSS SPI chip select signals
  spi: pxa2xx: Add output control for multiple Intel LPSS chip selects
  spi: pxa2xx: Use LPSS prefix for defines that are Intel LPSS specific
  spi: Add DSPI support for layerscape family
  spi: ti-qspi: improve ->remove() callback
  spi/spi-xilinx: Fix race condition on last word read
  spi: Drop owner assignment from spi_drivers
  spi: Add THIS_MODULE to spi_driver in SPI core
  spi: Setup the master controller driver before setting the chipselect
  spi: dw: replace magic constant by DW_SPI_DR
  spi: mediatek: mt8173 spi multiple devices support
  spi: mediatek: handle controller_data in mtk_spi_setup
  spi: mediatek: remove mtk_spi_config
  spi: mediatek: Update document devicetree bindings to support multiple devices
  spi: fix kernel-doc warnings about missing return desc in spi.c
  spi: fix kernel-doc warnings about missing return desc in spi.h
  spi: pxa2xx: Align a few defines
  spi: pxa2xx: Save other reg_cs_ctrl bits when configuring chip select
  ...
2015-11-05 13:15:12 -08:00
Andrew F. Davis
3821a065f5 spi: Drop owner assignment from spi_drivers
An spi_driver does not need to set an owner, it will be populated by the
driver core.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-10-28 10:30:17 +09:00
Lars-Peter Clausen
5dcbe97bed iio: ad5064: Fix ad5629/ad5669 shift
The ad5629/ad5669 are the I2C variant of the ad5628/ad5668, which has a SPI
interface. They are mostly identical with the exception that the shift
factor is different. Currently the driver does not take care of this
difference which leads to incorrect DAC output values.

Fix this by introducing a custom channel spec for the ad5629/ad5669 with
the correct shift factor.

Fixes: commit 6a17a0768f ("iio:dac:ad5064: Add support for the ad5629r and ad5669r")
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-10-25 12:30:42 +00:00
Michael Hennerich
03fe472ef3 iio:ad5064: Make sure ad5064_i2c_write() returns 0 on success
i2c_master_send() returns the number of bytes transferred on success while
the ad5064 driver expects that the write() callback returns 0 on success.
Fix that by translating any non negative return value of i2c_master_send()
to 0.

Fixes: commit 6a17a0768f ("iio:dac:ad5064: Add support for the ad5629r and ad5669r")
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-10-25 12:29:31 +00:00
Hartmut Knaack
399910534c iio:dac:m62332: use dynamic scale
Some regulators can supply multiple voltages. To take changing voltages
into account, the scale needs to be calculated on every read access.

Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-10-11 15:45:17 +01:00
Hartmut Knaack
acf2f67d05 iio:dac:m62332: address some style issues
Fix some indentation issues and separate returns by empty lines (IIO
style). Also rename the channel mask in _read_raw() to mask.

Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-10-11 15:44:42 +01:00
Hartmut Knaack
11687d4aae iio:dac:m62332: drop unrequired variable
A return variable is not required in _write_raw(), and dropping it reduces
complexity, as well.

Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Acked-by: Daniel Baluta <daniel.baluta@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-10-11 15:43:51 +01:00
Hartmut Knaack
7d2da8eaa9 iio:dac:m62332: use ARRAY_SIZE
Make use of ARRAY_SIZE to prevent buffer issues.

Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Acked-by: Daniel Baluta <daniel.baluta@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-10-11 15:42:41 +01:00
Hartmut Knaack
847e3928de iio:dac:m62332: shutdown on remove
The regulator framework requests to balance regulator_enable() calls with
regulator_disable() calls. To meet this requirement, set channels to 0 on
remove, which implies a regulator_disable() call in case that channel was
enabled.

Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Acked-by: Daniel Baluta <daniel.baluta@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-10-11 15:41:36 +01:00
Hartmut Knaack
862a76acb2 iio:dac:m62332: share scale and offset
This device simply uses its Vcc as reference voltage, so the same scale
applies for all channels. Also offset doesn't appear to be different for
any channel. Represent this by switching these two attributes to
info_mask_shared_by_type.

Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-10-11 15:39:37 +01:00
Martin Kepplinger
83234554ef iio: dac: ad5504: leave sysfs naming to the core
This shouldn't actually change anything since the core calls the events
sysfs folder "events" anyways.

Signed-off-by: Martin Kepplinger <martink@posteo.de>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-09-30 18:20:53 +01:00
Luis de Bethencourt
e09f56f3f0 iio: dac: max5821: Fix module autoload for OF platform driver
This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.

Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-09-23 20:23:23 +01:00
Javier Martinez Canillas
1c00dcd31d iio: dac: ad7303: Add OF match table
The Documentation/devicetree/bindings/iio/dac/ad7303.txt DT binding doc
lists "adi,ad7303" as a compatible string but the corresponding driver
does not have an OF match table. Add the table to the driver so the SPI
core can do an OF style match.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-08-22 19:05:55 +01:00
Greg Kroah-Hartman
ed15e8880f Merge 4.2-rc3 into staging-next
We need the staging fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-07-20 13:21:28 -07:00
Greg Kroah-Hartman
a732cd437b First set of IIO fixes for the 4.2 cycle.
* Fix a regression in hid sensors suspend time as a result of adding runtime
   pm.  The normal flow of waking up devices in order to go into suspend
   (given the devices are normally suspended when not reading) to a regression
   in suspend time on some laptops (reports of an additional 8 seconds).
   Fix this by checking to see if a user action resulting in the wake up, and
   make it a null operation if it didn't.  Note that for hid sensors, there is
   nothing useful to be done when moving into a full suspend from a runtime
   suspend so they might as well be left alone.
 * rochip_saradc: fix some missing MODULE_* data including the licence so that
   the driver does not taint the kernel incorrectly and can build as a module.
 * twl4030 - mark irq as oneshot as it always should have been.
 * inv-mpu - write formats for attributes not specified, leading to miss
   interpretation of the gyro scale channel when written.
 * Proximity ABI clarification.  This had snuck through as a mess.  Some
   drivers thought proximity went in one direction, some the other.  We went
   with the most common option, documented it and fixed up the drivers going
   the other way.  Fix for sx9500 included in this set.
 * ad624r - fix a wrong shift in the output data.
 * at91_adc - remove a false limit on the value of the STARTUP register
   applied by too small a type for the device tree parameter.
 * cm3323 - clear the bits when setting the integration time (otherwise
   we can only ever set more bits in the relevant field).
 * bmc150-accel - multiple triggers are registered, but on error were not being
   unwound in the opposite order leading to removal of triggers that had not
   yet successfully been registered (count down instead of up when unwinding).
 * tcs3414 - ensure right part of val / val2 pair read so that the integration
   time is not always 0.
 * cc10001_adc - bug in kconfig dependency. Use of OR when AND was intended.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIcBAABCAAGBQJVpA2CAAoJEFSFNJnE9BaIJGEP/2uXFSqOZhmJ9sGqICSgKj4W
 OUjDtpXpKWxLC3Fypzvzg5u00R1t2likfvhXP2RsF5+/mqPb8NS6qzdcKMPCyxEl
 5tvsmYHm9yxN8o3ZZqtgYaR4mYt5tH4dFZ9qHpbFeNAXGjTRrYhGbgmLnND0v7cA
 5L1ABLls8ntoJ1aZZDsofwnmnUgclW5yqQZZ+huNkwaOpUQLke9tEL18cv+bsVgS
 zw7j/t3oJVdcUB9OTB7T/sW9J0+W7XnXogATHksHdHh2cd5N7wh/EZ1bet69QUrI
 PD2q2+0MUwyBMWDPveyWfm7XbS66lYxIRCmWZp+69Q1c/V91srhSPfh0kPcvHSQ1
 Uzpba6oSFPlFyDAtXWhaSEBzjXaHwKBIQvIVYOKiE6JdrbsnSg4GHAcF8TMhGtwT
 SDDgfb+cxOm6Vb4ws0+i15HMEiXpeK8AiJfHmLvau3OnA69/xzxHqqSg/oCO6/ES
 IzoAMqIVEk3L5gu88qgnmWzmyWp1pyTf1u+Kr+gAXNdSF/b3wgVkGn2X9hNRQ4g/
 XEFAD1PzarBnv1ce/HfWi+9/aUwv08nXHxBe4Yx3bfle2RUQKmFSbksVkCwu+ha3
 E4jPs5Cf9MrHO4gbuFaZX2+bFYlMdbcEWVRcP/3CHUuxeixGwemOsak1L+J5h6+e
 2xVEkGeywVdmDOsan1B8
 =mBqw
 -----END PGP SIGNATURE-----

Merge tag 'iio-fixes-for-4.2a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus

Jonathan writes:

First set of IIO fixes for the 4.2 cycle.

* Fix a regression in hid sensors suspend time as a result of adding runtime
  pm.  The normal flow of waking up devices in order to go into suspend
  (given the devices are normally suspended when not reading) to a regression
  in suspend time on some laptops (reports of an additional 8 seconds).
  Fix this by checking to see if a user action resulting in the wake up, and
  make it a null operation if it didn't.  Note that for hid sensors, there is
  nothing useful to be done when moving into a full suspend from a runtime
  suspend so they might as well be left alone.
* rochip_saradc: fix some missing MODULE_* data including the licence so that
  the driver does not taint the kernel incorrectly and can build as a module.
* twl4030 - mark irq as oneshot as it always should have been.
* inv-mpu - write formats for attributes not specified, leading to miss
  interpretation of the gyro scale channel when written.
* Proximity ABI clarification.  This had snuck through as a mess.  Some
  drivers thought proximity went in one direction, some the other.  We went
  with the most common option, documented it and fixed up the drivers going
  the other way.  Fix for sx9500 included in this set.
* ad624r - fix a wrong shift in the output data.
* at91_adc - remove a false limit on the value of the STARTUP register
  applied by too small a type for the device tree parameter.
* cm3323 - clear the bits when setting the integration time (otherwise
  we can only ever set more bits in the relevant field).
* bmc150-accel - multiple triggers are registered, but on error were not being
  unwound in the opposite order leading to removal of triggers that had not
  yet successfully been registered (count down instead of up when unwinding).
* tcs3414 - ensure right part of val / val2 pair read so that the integration
  time is not always 0.
* cc10001_adc - bug in kconfig dependency. Use of OR when AND was intended.
2015-07-13 14:18:07 -07:00
Krzysztof Kozlowski
2155971a66 iio: Drop owner assignment from i2c_driver
i2c_driver does not need to set an owner because i2c_register_driver()
will set it.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-07-11 18:50:07 +01:00
JM Friedt
adfa969850 iio: DAC: ad5624r_spi: fix bit shift of output data value
The value sent on the SPI bus is shifted by an erroneous number of bits.
The shift value was already computed in the iio_chan_spec structure and
hence subtracting this argument to 16 yields an erroneous data position
in the SPI stream.

Signed-off-by: JM Friedt <jmfriedt@femto-st.fr>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-06-21 14:03:28 +01:00
Dmitry Eremin-Solenikov
b87b0c0f81 iio: add m62332 DAC driver
m62332 is a simple 2-channel DAC used on several Sharp Zaurus boards to
control LCD voltage, backlight and sound. The driver use regulators to
control the reference voltage and enabling/disabling the DAC.

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-05-17 09:37:45 +01:00
Antonio Fiol
a878a1a61a iio: max517: Add support for MAX520 and MAX521 chips.
MAX520 and MAX521 are protocol-compatible with the already supported
chips, just have more channels.

Signed-off-by: Antonio Fiol <antonio@fiol.es>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-03-28 10:57:34 +00:00
Urs Fässler
da019f59cb iio: ad5686: fix optional reference voltage declaration
When not using the "_optional" function, a dummy regulator is returned
and the driver fails to initialize.

Signed-off-by: Urs Fässler <urs.fassler@bytesatwork.ch>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: stable@vger.kernel.org
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-02-04 16:54:38 +00:00
Philippe Reynes
4729889727 iio: add support of the max5821
Signed-off-by: Philippe Reynes <tremyfr@yahoo.fr>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-07-27 14:21:35 +01:00
Sachin Kamat
10215d8689 iio: ad5686: Remove redundant variable
‘regdone’ is not used in the function. Remove it.

Signed-off-by: Sachin Kamat <sachin.kamat@samsung.com>
Cc: Michael Hennerich <hennerich@blackfin.uclinux.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-07-03 21:59:56 +01:00
Sachin Kamat
0d3a9b2dad iio: ad5504: Remove redundant variable
By re-arranging the code, 'ret' can be removed from this
function.

Signed-off-by: Sachin Kamat <sachin.kamat@samsung.com>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-07-03 21:58:26 +01:00
Sachin Kamat
15255c6b4d iio: ad5624r_spi: Remove redundant variable
By re-arranging the code, 'ret' can be removed from this
function.

Signed-off-by: Sachin Kamat <sachin.kamat@samsung.com>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-07-03 21:56:35 +01:00
Michael Welling
1b791fadf3 iio: dac: mcp4902/mcp4912/mcp4922 dac driver
This patch provides an iio device driver for the Microchip
MCP49x2 series DACs.

Signed-off-by: Michael Welling <mwelling@ieee.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-06-21 11:50:33 +01:00
Peter Meerwald
a476bc02eb iio:adc:ad5504: Use BIT() and GENMASK() macros
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-06-14 15:48:24 +01:00
Peter Meerwald
ff96bf519a iio:adc:ad5791: Use BIT() and GENMASK() macros
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-06-14 15:44:01 +01:00
Dan Carpenter
a04cf55a52 iio: dac: ad7303: remove an unneeded check
"ret" is zero here.  There is no need to check again.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-02-03 21:44:42 +00:00
Paul Gortmaker
36eb8cc2ce iio: delete non-required instances of include <linux/init.h>
None of these files are actually using any __init type directives
and hence don't need to include <linux/init.h>.  Most are just a
left over from __devinit and __cpuinit removal, or simply due to
code getting copied from one driver to the next.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-01-11 11:59:00 +00:00
Jonathan Cameron
cb4417f9db iio:dac:mcp4725 drop specification of scan type as unused in this driver.
IIO_ST is going away as it is a pain to maintain so the simplest path with
this driver is to not specify the unused scan type.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
2013-12-17 21:08:19 +00:00
Jonathan Cameron
5247362453 iio:dac:max517 drop specification of scan type as unused in this driver.
IIO_ST is going away as it is a pain to maintain so the simplest path with
this driver is to not specify the unused scan type.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
2013-12-17 21:07:37 +00:00
Jonathan Cameron
cb9d90f1e3 iio:dac:ad5791 replaces IIO_ST macro with explicit entries to struct scan_type
IIO_ST is going away as it is a pain to maintain.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
2013-12-17 21:06:57 +00:00
Jonathan Cameron
560101de92 iio:dac:ad5764 replaces IIO_ST macro with explicit entries to struct scan_type
IIO_ST is going away as it is a pain to maintain.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
2013-12-17 21:05:53 +00:00
Jonathan Cameron
64665dd373 iio:dac:ad5755 replaces IIO_ST macro with explicit entries to struct scan_type
IIO_ST is going away as it is a pain to maintain.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
2013-12-17 21:04:47 +00:00
Jonathan Cameron
44ba1593ac iio:dac:ad5686 replaces IIO_ST macro with explicit entries to struct scan_type
IIO_ST is going away as it is a pain to maintain.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
2013-12-17 21:03:52 +00:00
Jonathan Cameron
4974600bbf iio:dac:ad5624r replaces IIO_ST macro with explicit entries to struct scan_type
IIO_ST is going away as it is a pain to maintain.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
2013-12-17 21:02:46 +00:00
Jonathan Cameron
73d3a77583 iio:dac:ad5504 replaces IIO_ST macro with explicit entries to struct scan_type
IIO_ST is going away as it is a pain to maintain.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
2013-12-17 21:01:58 +00:00
Jonathan Cameron
3d42e148e3 iio:dac:ad5449 replaces IIO_ST macro with explicit entries to struct scan_type
IIO_ST is going away as it is a pain to maintain.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
2013-12-17 21:00:46 +00:00
Jonathan Cameron
e3019c21de iio:dac:ad5446 replaces IIO_ST macro with explicit entries to struct scan_type
IIO_ST is going away as it is a pain to maintain.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
2013-12-17 21:00:09 +00:00
Jonathan Cameron
49f8289795 iio:dac:ad5421 replaces IIO_ST macro with explicit entries to struct scan_type
IIO_ST is going away as it is a pain to maintain.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
2013-12-17 20:59:39 +00:00
Jonathan Cameron
da9b1a2170 iio:dac:ad5380 replaces IIO_ST macro with explicit entries to struct scan_type
IIO_ST is going away as it is a pain to maintain.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
2013-12-17 20:58:34 +00:00
Jonathan Cameron
c865b537e9 iio:dac:ad5360 replaces IIO_ST macro with explicit entries to struct scan_type
IIO_ST is going away as it is a pain to maintain.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
2013-12-17 20:57:31 +00:00
Jonathan Cameron
81d49bc622 iio:dac:ad5064 replaces IIO_ST macro with explicit entries to struct scan_type
IIO_ST is going away as it is a pain to maintain.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
2013-12-17 20:56:33 +00:00
Lars-Peter Clausen
cb955852a4 iio: Remove support for the legacy event config interface
Now that all drivers have been converted to the new event config interface we
can remove for the legacy event config interface. Also drop the '_new' suffix
for the event config interface callbacks, since those are the only callbacks
now.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-12-08 13:13:52 +00:00
Lars-Peter Clausen
791bb52a0c iio:ad5791: Do not store transfer buffers on the stack
Some SPI controllers may not be able to handle transfer buffers that are placed
on the stack.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-12-03 20:22:26 +00:00
Lars-Peter Clausen
ae8bb9b101 iio:ad5791: Mark transfer buffers as __be32
Fixes the following warnings from sparse:
	drivers/iio/dac/ad5791.c:114:18: warning: incorrect type in assignment (different base types)
	drivers/iio/dac/ad5791.c:114:18:    expected unsigned int [unsigned] [usertype] d32
	drivers/iio/dac/ad5791.c:114:18:    got restricted __be32 [usertype] <noident>
	drivers/iio/dac/ad5791.c:142:21: warning: incorrect type in assignment (different base types)
	drivers/iio/dac/ad5791.c:142:21:    expected unsigned int [unsigned] [usertype] d32
	drivers/iio/dac/ad5791.c:142:21:    got restricted __be32 [usertype] <noident>
	drivers/iio/dac/ad5791.c:144:21: warning: incorrect type in assignment (different base types)
	drivers/iio/dac/ad5791.c:144:21:    expected unsigned int [unsigned] [usertype] d32
	drivers/iio/dac/ad5791.c:144:21:    got restricted __be32 [usertype] <noident>
	drivers/iio/dac/ad5791.c:148:16: warning: cast to restricted __be32
	drivers/iio/dac/ad5791.c:148:16: warning: cast to restricted __be32
	drivers/iio/dac/ad5791.c:148:16: warning: cast to restricted __be32
	drivers/iio/dac/ad5791.c:148:16: warning: cast to restricted __be32
	drivers/iio/dac/ad5791.c:148:16: warning: cast to restricted __be32
	drivers/iio/dac/ad5791.c:148:16: warning: cast to restricted __be32

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-12-03 20:22:26 +00:00
Lars-Peter Clausen
edc05f2614 iio:ad5755: Mark transfer buffer as __be32
Fixes the following warnings from sparse:
	drivers/iio/dac/ad5755.c:117:25: warning: incorrect type in assignment (different base types)
	drivers/iio/dac/ad5755.c:117:25:    expected unsigned int [unsigned] [usertype] d32
	drivers/iio/dac/ad5755.c:117:25:    got restricted __be32 [usertype] <noident>
	drivers/iio/dac/ad5755.c:171:25: warning: incorrect type in assignment (different base types)
	drivers/iio/dac/ad5755.c:171:25:    expected unsigned int [unsigned] [usertype] d32
	drivers/iio/dac/ad5755.c:171:25:    got restricted __be32 [usertype] <noident>
	drivers/iio/dac/ad5755.c:172:25: warning: incorrect type in assignment (different base types)
	drivers/iio/dac/ad5755.c:172:25:    expected unsigned int [unsigned] [usertype] d32
	drivers/iio/dac/ad5755.c:172:25:    got restricted __be32 [usertype] <noident>
	drivers/iio/dac/ad5755.c:176:23: warning: cast to restricted __be32
	drivers/iio/dac/ad5755.c:176:23: warning: cast to restricted __be32
	drivers/iio/dac/ad5755.c:176:23: warning: cast to restricted __be32
	drivers/iio/dac/ad5755.c:176:23: warning: cast to restricted __be32
	drivers/iio/dac/ad5755.c:176:23: warning: cast to restricted __be32
	drivers/iio/dac/ad5755.c:176:23: warning: cast to restricted __be32

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-12-03 20:22:26 +00:00
Lars-Peter Clausen
cf87534b6f iio:ad5686: Mark transfer buffer as __be32
Fixes the following warnings from sparse:
	drivers/iio/dac/ad5686.c💯25: warning: incorrect type in assignment (different base types)
	drivers/iio/dac/ad5686.c💯25:    expected unsigned int [unsigned] [usertype] d32
	drivers/iio/dac/ad5686.c💯25:    got restricted __be32 [usertype] <noident>
	drivers/iio/dac/ad5686.c:122:25: warning: incorrect type in assignment (different base types)
	drivers/iio/dac/ad5686.c:122:25:    expected unsigned int [unsigned] [usertype] d32
	drivers/iio/dac/ad5686.c:122:25:    got restricted __be32 [usertype] <noident>
	drivers/iio/dac/ad5686.c:124:25: warning: incorrect type in assignment (different base types)
	drivers/iio/dac/ad5686.c:124:25:    expected unsigned int [unsigned] [usertype] d32
	drivers/iio/dac/ad5686.c:124:25:    got restricted __be32 [usertype] <noident>
	drivers/iio/dac/ad5686.c:130:16: warning: cast to restricted __be32
	drivers/iio/dac/ad5686.c:130:16: warning: cast to restricted __be32
	drivers/iio/dac/ad5686.c:130:16: warning: cast to restricted __be32
	drivers/iio/dac/ad5686.c:130:16: warning: cast to restricted __be32
	drivers/iio/dac/ad5686.c:130:16: warning: cast to restricted __be32
	drivers/iio/dac/ad5686.c:130:16: warning: cast to restricted __be32

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-12-03 20:22:26 +00:00
Lars-Peter Clausen
8ef411b78b iio:ad5421: Mark transfer buffer as __be32
Fixes the following warnings from sparse:
	drivers/iio/dac/ad5421.c:134:25: warning: incorrect type in assignment (different base types)
	drivers/iio/dac/ad5421.c:134:25:    expected unsigned int [unsigned] [usertype] d32
	drivers/iio/dac/ad5421.c:134:25:    got restricted __be32 [usertype] <noident>
	drivers/iio/dac/ad5421.c:168:25: warning: incorrect type in assignment (different base types)
	drivers/iio/dac/ad5421.c:168:25:    expected unsigned int [unsigned] [usertype] d32
	drivers/iio/dac/ad5421.c:168:25:    got restricted __be32 [usertype] <noident>
	drivers/iio/dac/ad5421.c:172:23: warning: cast to restricted __be32
	drivers/iio/dac/ad5421.c:172:23: warning: cast to restricted __be32
	drivers/iio/dac/ad5421.c:172:23: warning: cast to restricted __be32
	drivers/iio/dac/ad5421.c:172:23: warning: cast to restricted __be32
	drivers/iio/dac/ad5421.c:172:23: warning: cast to restricted __be32
	drivers/iio/dac/ad5421.c:172:23: warning: cast to restricted __be32

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-12-03 20:22:25 +00:00
Lars-Peter Clausen
0dbe59c7a7 iio:ad5504: Do not store transfer buffers on the stack
Some SPI controllers may not be able to handle transfer buffers that are placed
on the stack.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-12-03 20:22:25 +00:00
Lars-Peter Clausen
61c358e3bc iio:ad5504: Mark transfer buffers as __be16
Fixes the following warnings from sparse:
	drivers/iio/dac/ad5504.c:71:19: warning: incorrect type in initializer (different base types)
	drivers/iio/dac/ad5504.c:71:19:    expected unsigned short [unsigned] [usertype] tmp
	drivers/iio/dac/ad5504.c:71:19:    got restricted __be16 [usertype] <noident>
	drivers/iio/dac/ad5504.c:80:19: warning: incorrect type in initializer (different base types)
	drivers/iio/dac/ad5504.c:80:19:    expected unsigned short [unsigned] [usertype] tmp
	drivers/iio/dac/ad5504.c:80:19:    got restricted __be16 [usertype] <noident>
	drivers/iio/dac/ad5504.c:93:16: warning: cast to restricted __be16
	drivers/iio/dac/ad5504.c:93:16: warning: cast to restricted __be16
	drivers/iio/dac/ad5504.c:93:16: warning: cast to restricted __be16
	drivers/iio/dac/ad5504.c:93:16: warning: cast to restricted __be16

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-12-03 20:22:25 +00:00
Sachin Kamat
1baeec9c37 iio: dac: ad5755: Use devm_iio_device_register
devm_iio_device_register simplifies the code.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-11-24 21:07:17 +00:00
Sachin Kamat
365736e77c iio: dac: ad5421: Use devm_iio_device_register
devm_iio_device_register simplifies the code.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-11-24 21:07:16 +00:00
Sachin Kamat
a9b6851100 iio: dac: mcp4725: Remove redundant code
Remove an inconsequential print message and return directly
thereby cleaning up some code.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-24 14:47:49 +01:00
Sachin Kamat
345d4f92e7 iio: dac: max517: Remove redundant variable
Remove an inconsequential print message and return directly
thereby eliminating an intermediate variable.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-24 14:47:15 +01:00
Sachin Kamat
e2f5543a73 iio: dac: ad5755: Remove redundant code
The if check is redundant as the value obtained from
iio_device_register() is already in the required format.
Error messages are already printed by iio_device_register();
hence not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-24 14:46:33 +01:00
Sachin Kamat
35b9c0b18e iio: dac: ad5421: Remove redundant code
The if check is redundant as the value obtained from
iio_device_register() is already in the required format.
Hence return the function directly. Error messages are already
printed by iio_device_register(); hence not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-24 14:46:00 +01:00
Lars-Peter Clausen
1eefd62b63 iio:ad5421: Switch to new event config interface
Switch the ad5421 driver to the new IIO event config interface as the old one
is going to be removed.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-12 12:35:05 +01:00
Lars-Peter Clausen
66a1891642 iio:ad5449: Use spi_sync_transfer()
Use the spi_sync_transfer() helper function instead of open-coding it. Makes
the code a bit shorter.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-05 11:58:19 +01:00
Lars-Peter Clausen
b117f96f49 iio:mcp4725: Report scale as fractional value
Move the complexity of calculating the fixed point scale to the core.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-01 16:19:11 +01:00
Lars-Peter Clausen
998f129c76 iio:max517: Report scale as fractional value
Move the complexity of calculating the fixed point scale to the core.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-01 16:19:11 +01:00
Lars-Peter Clausen
213983cd32 iio:ad5791: Report scale as fractional value
Move the complexity of calculating the fixed point scale to the core.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-01 16:19:11 +01:00
Lars-Peter Clausen
3f83dae884 iio:ad5764: Report scale as fractional value
Move the complexity of calculating the fixed point scale to the core.

Also fix a off by one error in the comment describing the transfer function.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-01 16:19:11 +01:00
Lars-Peter Clausen
ae76751f67 iio:ad5755: Report scale as fractional value
Move the complexity of calculating the fixed point scale to the core.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-01 16:19:10 +01:00
Lars-Peter Clausen
ecc7e948bc iio:ad5686: Report scale as fractional value
Move the complexity of calculating the fixed point scale to the core.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-01 16:19:10 +01:00
Lars-Peter Clausen
14229e87a9 iio:ad5624r: Report scale as fractional value
Move the complexity of calculating the fixed point scale to the core.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-01 16:19:10 +01:00
Lars-Peter Clausen
54ea14339d iio:ad5504: Report scale as fractional value
Move the complexity of calculating the fixed point scale to the core.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-01 16:19:09 +01:00
Lars-Peter Clausen
0a99b60143 iio:ad5446: Report scale as fractional value
Move the complexity of calculating the fixed point scale to the core.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-01 16:19:09 +01:00
Lars-Peter Clausen
bc7c49bc77 iio:ad5421: Report scale as fractional value
Move the complexity of calculating the fixed point scale to the core.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-01 16:19:09 +01:00
Lars-Peter Clausen
4f2c188597 iio:ad5380: Report scale as fractional value
Move the complexity of calculating the fixed point scale to the core.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-01 16:19:09 +01:00
Lars-Peter Clausen
ca3bc8b626 iio:ad5360: Report scale as fractional value
Move the complexity of calculating the fixed point scale to the core.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-01 16:19:08 +01:00
Lars-Peter Clausen
25682ae5e4 iio:ad5064: Report scale as fractional value
Move the complexity of calculating the fixed point scale to the core.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-01 16:19:08 +01:00
Greg Kroah-Hartman
b4e8459947 Second set of new functionality for IIO in the 3.13 cycle - with bug fixes for first set.
This is a small, mainly to get a couple of compile bug related fixes into
 the tree ASAP.
 
 New device support:
 1) Add ad5446 dac support to the ad5641 driver.
 
 New functionality and cleanups:
 1) Optional power supply regulators for the st pressure sensors drivers using
    the new optional regulator interface.
 2) Bit of tidying up of naming in the sysfs trigger.
 
 Bug fixes from the previous series:
 1) Missing select IIO_BUFFER for ti_am335x_adc
 2) Drop a bonus bracket in iio-trig-bfin-timmer
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.21 (GNU/Linux)
 
 iQIcBAABAgAGBQJSSJGeAAoJEFSFNJnE9BaIY7gP/i5Ld5glnnG88dtM5g7Cs7Ws
 utyKeWh1QxfbtRH8MDo8GfxKAszVeckG552A/iOfm0wvqJT1JIKRdUl2rMcFvfBS
 V0YFMKlJlXgfVhvy4X9NgfllrlGxAniFQ115l3JnPPhnEfr4IgWOt1K5dmK0kqhF
 Ztt9ukmsa2VctefYP5tcRh1Pw1rYdFndgkdZ64+fYjkAideMbWxgQdh91al1prBz
 wXTu43djnQimvkZLRQ0tX0/WQ9zs8H3bNm7TEgOqU8bbX785B8XQv6N6OFnqXT9S
 IjbZHniih8eU13gtno+yBR6OO0gYw20IxXmVRUUR/F94JT4KXaByGBrMz8Z5f+o0
 OilkJjOdn/jH+Dd1XHJN7Pk8Wx6PxwxeENu3qVn7p1vg27OcpY0Ft2vcdecnE11j
 7bP3HYLcxGxLCW0qYs6voK2SnvZAJBrw8MB4sdUAmykdn1xJ25wccQm6iMKTvTYI
 +AipHI3jpfllIC6Lj1IVhksAYhd7BlMK5sVH0sgWirLbqACSweRpbXCcRlSvguGY
 jEX5+Rf29QfYbcIsRlk52+n47FpVVOfIDjc0ygBGLovaE+FLorWUNIJjeM3f570D
 l2nwWjHUvnNFtA/NnBf4NLrwHqXzBX30Httk+6eISRJiyjr4ZEBAVpRt/luiWlqY
 bOEBICwy1sEzF4ymIAIa
 =KKlS
 -----END PGP SIGNATURE-----

Merge tag 'iio-for-3.13b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

Second set of new functionality for IIO in the 3.13 cycle - with bug fixes for first set.

This is a small, mainly to get a couple of compile bug related fixes into
the tree ASAP.

New device support:
1) Add ad5446 dac support to the ad5641 driver.

New functionality and cleanups:
1) Optional power supply regulators for the st pressure sensors drivers using
   the new optional regulator interface.
2) Bit of tidying up of naming in the sysfs trigger.

Bug fixes from the previous series:
1) Missing select IIO_BUFFER for ti_am335x_adc
2) Drop a bonus bracket in iio-trig-bfin-timmer
2013-09-29 13:12:23 -07:00
Greg Kroah-Hartman
e2aad1d571 Merge 3.12-rc2 into staging-next.
This resolves the merge problem with two iio drivers that Stephen
Rothwell pointed out.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-09-25 08:59:04 -07:00
Aida Mynzhasova
4fa2a9e468 iio: dac: ad5446: Add support for AD5641
This patch adds support for the AD5641 single channel,
14-bit, buffered voltage output DAC.

Signed-off-by: Aida Mynzhasova <aida.mynzhasova@skitlab.ru>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-09-23 20:20:47 +01:00
Peter Meerwald
a97dd06948 iio: Fix mcp4725 dev-to-indio_dev conversion in suspend/resume
dev_to_iio_dev() is a false friend

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-09-21 12:04:48 +01:00
Jonathan Cameron
3704432fb1 iio: refactor info mask and ext_info attribute creation.
Introduce an enum to specify whether the attribute is separate or
shared.

Factor out the bitmap handling for loop into a separate function.

Tidy up error handling and add a NULL assignment to squish a false
positive warning from GCC.

Change ext_info shared type from boolean to enum and update in all
drivers.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
2013-09-15 17:43:20 +01:00
Sachin Kamat
540e4dbead iio: dac: ad5686: Remove redundant break
'break' after return is redundant. Remove it.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-09-14 11:37:01 +01:00
Sachin Kamat
cc566fd5e5 iio: dac: max517: Use devm_iio_device_alloc
Using devm_iio_device_alloc makes code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Roland Stigge <stigge@antcom.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-08-19 20:38:50 +01:00
Sachin Kamat
66e670aa08 iio: dac: ad7303: Use devm_* APIs
devm_* APIs are device managed and make code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-08-19 20:37:20 +01:00
Sachin Kamat
0d7c04d33f iio: dac: ad5791: Use devm_* APIs
devm_* APIs are device managed and make code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-08-19 20:35:35 +01:00
Sachin Kamat
7ff0de3faa iio: dac: ad5764: Use devm_* APIs
devm_* APIs are device managed and make code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-08-19 20:35:32 +01:00
Sachin Kamat
fd047294e2 iio: dac: ad5755: Use devm_iio_device_alloc
Using devm_iio_device_alloc makes code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-08-19 20:32:53 +01:00
Sachin Kamat
edf3fd4141 iio: dac: ad5686: Use devm_* APIs
devm_* APIs are device managed and make code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-08-19 20:31:04 +01:00
Sachin Kamat
75238230cc iio: dac: ad5624r_spi: Use devm_* APIs
devm_* APIs are device managed and make code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-08-19 20:29:34 +01:00
Sachin Kamat
8571ebf7fc iio: dac: ad5504: Use devm_* APIs
devm_* APIs are device managed and make code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-08-19 20:27:24 +01:00
Sachin Kamat
cd5e578541 iio: dac: ad5449: Use devm_* APIs
devm_* APIs are device managed and make code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-08-19 20:26:25 +01:00
Sachin Kamat
ba7272954e iio: dac: ad5446: Use devm_* APIs
devm_* APIs are device managed and make code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-08-19 20:25:43 +01:00
Sachin Kamat
62a308a62d iio: dac: ad5421: Use devm_* APIs
devm_* APIs are device managed and make code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-08-19 20:24:52 +01:00
Sachin Kamat
c815ad372b iio: dac: ad5380: Use devm_* APIs
devm_* APIs are device managed and make code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-08-19 20:23:53 +01:00
Sachin Kamat
400d36e68d iio: dac: ad5360: Use devm_* APIs
devm_* APIs are device managed and make code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-08-19 20:22:44 +01:00
Sachin Kamat
c367982ad9 iio: dac: ad5064: Use devm_* APIs
devm_* APIs are device managed and make code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-08-19 20:20:28 +01:00
Peter Meerwald
b6ff86f3f5 iio:mcp4725: Use devm_iio_device_alloc
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-08-03 22:18:54 +01:00
Lars-Peter Clausen
3edc84e605 iio: Add a comment to about alphabetical order to Kconfigs and Makefiles
Keeping Makefile and Kconfig entries in alphabetical order usually works better
than just appending new entries at the end, since it reduces the amount of
conflicts. This patch adds a comment to the IIO Kconfig and Makefile files to
document that the entries should be kept in alphabetical order.

Also reorder those  entries which weren't in alphabetical order yet.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-08-03 18:40:36 +01:00
Jonathan Cameron
4fd313da04 iio:dac:mcp4725 wrong return type of attribute _show function
Should be ssize_t and is int.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Reported-by: Fengguan Wu <fengguang.wu@intel.com>
Acked-by: Peter Meerwald <pmeerw@pmeerw.net>
2013-08-03 18:40:36 +01:00
Peter Meerwald
155f1b4189 iio: add powerdown to mcp4725 dac drive
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-08-03 18:40:31 +01:00
Peter Meerwald
f17b77d6cf iio: add store_eeprom to mcp4725 dac driver
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-08-03 18:40:31 +01:00
Peter Meerwald
71866079dd iio: fix typos in dac Kconfig
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-08-03 18:40:29 +01:00
Wei Yongjun
94fccb7841 iio: dac: ad7303: fix error return code in ad7303_probe()
Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-06-29 10:18:21 +01:00
Lars-Peter Clausen
f83478240e iio:dac: Add support for the AD7303
This patch adds support for the AD7303. The AD7303 is a simple 2 channel 8 bit
DAC with an SPI interface.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-06-11 20:25:58 +01:00
Axel Lin
0ae5fb6fd3 iio: dac: Fix build error when CONFIG_SPI_MASTER=y && CONFIG_I2C=m
This patch fixes below build error when CONFIG_SPI_MASTER=y && CONFIG_I2C=m:

drivers/built-in.o: In function `ad5064_i2c_write':
drivers/iio/dac/ad5064.c:608: undefined reference to `i2c_master_send'
drivers/built-in.o: In function `ad5064_i2c_register_driver':
drivers/iio/dac/ad5064.c:646: undefined reference to `i2c_register_driver'
drivers/built-in.o: In function `ad5064_i2c_unregister_driver':
drivers/iio/dac/ad5064.c:651: undefined reference to `i2c_del_driver'
make: *** [vmlinux] Error 1

When CONFIG_I2C=m, meaning we can't build the drivers in with I2C support.
Thus don't allow the drivers to be compiled as built-in when CONFIG_I2C=m.

The real fix though is to break the driver apart into a SPI part, an I2C part
and a common part. But that's something for 3.11 while this is something for
3.10/stable.

Reported-by: Wu Fengguang <fengguang.wu@intel.com>
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-05-22 22:14:58 +01:00
Greg Kroah-Hartman
ef994fda44 First set of IIO new drivers and cleanup for the 3.10 cycle.
New stuff
 
 1) Add OF support for specifying mappings between iio devices and their
    in kernel consumers.
 2) Driver for AD7923 (extra functionality and support for ad7904, ad7914 and
    ad7924 added later in series)
 3) Driver for Exynos adc (dt suppor for phy added later in series).
 4) Make iio_push_event save IRQ context - necessary if it is to be used
    within an interrupt handler.  Users of this functionality to follow.
 5) For iio use the device tree node name to provide the hwmon name attribute
    if available.
 
 Removal and moves out of staging
 
 1) Drop the adt7410 driver from IIO now that there is a hmwon driver with
    equivalent support. This device is very much targeted at hardware
    monitoring so hwmon is a more appropriate host for the driver.
 2) Move iio_hwmon driver to drivers/hwmon.
 
 Cleanups
 
 1) Minor cleanup in ST common library.
 2) Large set of patches to break the info_mask element which previously used
 odd and even bits to specify if a channel attribute was either shared across
 similar channels or specific to only one.  Now we have two bitmaps, one for
 those parameters that are specific to this channel and one for those shared
 by all channels with the same type as this one.  This has no effect on the
 userspace abi. It simplifies the core code and provides more space for new
 channel parameters. It has been on the todo list for a long time!
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.19 (GNU/Linux)
 
 iQIcBAABAgAGBQJRTYe3AAoJEFSFNJnE9BaIxfEQAJDxF7GZKG3pJhJIrN40d42y
 DZD9Tf28Z5Ynd70gA8lITzwyBuj2r56/xpuewR9SH0nsV+s8zUplUoqBg1B5eIOO
 WUg/ojzVjJISyrg+egfkNmwqv7LFkINj9CJfrf2xv99OwjQeCqMc9zHQ1JRK+tl/
 57Z1zCZFX3B2dKDalH8sGcuGFRB+TturctvSAO2FTKcQ6/8FmubXD7+4zamn7+lH
 vsD6+kRhIQ3yZJSUhLMzbueXfdF9OZe3n7MTbCtLhb76JOLmkGAqnSo0APEndBTb
 PyS3DPKFxWJZTzzyKVoEW4pdU/fx2JfOZs101TFDXxh5p1hcALP8zwJQ3CqotYT6
 kosGlyrPKaAiqkkGURqsUQvjjfcvNuhFQY2IMHQxFhEIRLYHZTLPJGBV1oBPQ4sQ
 /OAOgu+Uut45ZeHAo1bTXcykO8GzvYxvQ18LUY1Jo/5Iqid0nRxVL6CkrA6Uw+z4
 Tu4/z3ceeBAx1B34/ty58rkX+Xe6CxPPbzSgCtrV6oMpLZhQegHareItnhxbNRFN
 oO9CULLXf6nyFhoYFbZRi+FStfsvdLKjfoDshHNp2kcpqsrTDyjwaTjjTQ4u30MD
 VVo7lwVmm0ASpOXyVDPIw7ft/HHUDPH8xz7tPhhZHX5uvs74GCHg0WjZ48WMgv/N
 Jk6lERQpZ2x6RYe4eH9+
 =99m9
 -----END PGP SIGNATURE-----

Merge tag 'iio-for-3.10a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

First set of IIO new drivers and cleanup for the 3.10 cycle.

New stuff

1) Add OF support for specifying mappings between iio devices and their
   in kernel consumers.
2) Driver for AD7923 (extra functionality and support for ad7904, ad7914 and
   ad7924 added later in series)
3) Driver for Exynos adc (dt suppor for phy added later in series).
4) Make iio_push_event save IRQ context - necessary if it is to be used
   within an interrupt handler.  Users of this functionality to follow.
5) For iio use the device tree node name to provide the hwmon name attribute
   if available.

Removal and moves out of staging

1) Drop the adt7410 driver from IIO now that there is a hmwon driver with
   equivalent support. This device is very much targeted at hardware
   monitoring so hwmon is a more appropriate host for the driver.
2) Move iio_hwmon driver to drivers/hwmon.

Cleanups

1) Minor cleanup in ST common library.
2) Large set of patches to break the info_mask element which previously used
odd and even bits to specify if a channel attribute was either shared across
similar channels or specific to only one.  Now we have two bitmaps, one for
those parameters that are specific to this channel and one for those shared
by all channels with the same type as this one.  This has no effect on the
userspace abi. It simplifies the core code and provides more space for new
channel parameters. It has been on the todo list for a long time!

Conflicts:
	drivers/iio/dac/ad5064.c
2013-03-25 10:50:03 -07:00
Jonathan Cameron
90b4637400 iio:dac:mcp4725 move to info_mask_(shared_by_type/separate)
The original info_mask is going away in favour of the broken out versions.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
cc: Peter Meerwald <pmeerw@pmeerw.net>
2013-03-17 19:49:34 +00:00
Jonathan Cameron
040b837e71 iio:dac:max517 move to info_mask_(shared_by_type/separate)
The original info_mask is going away in favour of the broken out versions.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
cc: Roland Stigge <stigge@antcom.de>
2013-03-17 19:49:34 +00:00
Jonathan Cameron
7611294799 iio:dac:ad5791 move to info_mask_(shared_by_type/separate)
The original info_mask is going away in favour of the broken out versions.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
2013-03-17 19:49:33 +00:00
Jonathan Cameron
f4d9df1993 iio:dac:ad5764 move to info_mask_(shared_by_type/separate)
The original info_mask is going away in favour of the broken out versions.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
2013-03-17 19:49:33 +00:00
Jonathan Cameron
8ac1f3df0e iio:dac:ad5755 move to info_mask_(shared_by_type/separate)
The original info_mask is going away in favour of the broken out versions.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
2013-03-17 19:49:33 +00:00
Jonathan Cameron
d87a1d78ad iio:dac:ad5686 move to info_mask_(shared_by_type/separate)
The original info_mask is going away in favour of the broken out versions.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
2013-03-17 19:49:33 +00:00
Jonathan Cameron
8b68634861 iio:dac:ad5624r move to info_mask_(shared_by_type/separate)
The original info_mask is going away in favour of the broken out versions.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
2013-03-17 19:49:32 +00:00
Jonathan Cameron
f3ec5a2dd4 iio:dac:ad5504 move to info_mask_(shared_by_type/separate)
The original info_mask is going away in favour of the broken out versions.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
2013-03-17 19:49:32 +00:00
Jonathan Cameron
f8c627138b iio:dac:ad5449 move to info_mask_(shared_by_type/separate)
The original info_mask is going away in favour of the broken out versions.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
2013-03-17 19:49:32 +00:00
Jonathan Cameron
2f6a4a4421 iio:dac:ad5446 move to info_mask_(shared_by_type/separate)
The original info_mask is going away in favour of the broken out versions.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
2013-03-17 19:49:32 +00:00
Jonathan Cameron
31311c2a47 iio:dac:ad5421 move to info_mask_(shared_by_type/separate)
The original info_mask is going away in favour of the broken out versions.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
2013-03-17 19:49:31 +00:00
Jonathan Cameron
c69e139765 iio:dac:ad5380 move to info_mask_(shared_by_type/separate)
The original info_mask is going away in favour of the broken out versions.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
2013-03-17 19:49:31 +00:00
Jonathan Cameron
1727a301ed iio:dac:ad5360 move to info_mask_(shared_by_type/separate)
The original info_mask is going away in favour of the broken out versions.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
2013-03-17 19:49:31 +00:00
Jonathan Cameron
20a0eddd58 iio:dac:ad5064 move to info_mask_(shared_by_type/separate)
The original info_mask is going away in favour of the broken out versions.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
2013-03-17 19:49:30 +00:00
Lars-Peter Clausen
f77ae9d8fd iio:ad5064: Initialize register cache correctly
Initialize the register cache to the proper mid-scale value based on the
resolution of the device.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-03-02 16:29:14 +00:00
Lars-Peter Clausen
c5ef717a77 iio:ad5064: Fix off by one in DAC value range check
The DAC value range check allows values one larger than the maximum value, which
effectively results in setting the DAC value to 0. This patch fixes the issue.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-03-02 16:28:42 +00:00
Lars-Peter Clausen
a26302628a iio:ad5064: Fix address of the second channel for ad5065/ad5045/ad5025
The ad5065, ad5045, ad5025 use address '3' for the second channel, so they need
their own channel spec.

Note that ad5064_sync_powerdown_mode() also needs to be slightly updated since
it was relying on the fact that chan->address always equaled chan->channel.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-03-02 16:22:13 +00:00
Lars-Peter Clausen
14543a00fc iio: Use spi_sync_transfer()
Use the new spi_sync_transfer() helper function instead of open-coding it.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-02-09 11:08:42 +00:00