Commit Graph

185 Commits

Author SHA1 Message Date
Vivien Didelot
82b7afbc8a iio:adc:max1363 clear list of missing features
Remove "Control of internal reference" from the list of unimplemented
features, since as of commit a405b00, external reference is supported if
the device has a regulator and falls back to internal if it doesn't.

While we are modifying the header, let's make it more concise and remove
a redundant filename.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-01-11 11:33:36 +00:00
Greg Kroah-Hartman
a6e8e3a470 2nd round of new IIO drivers, features and cleanups for the 3.14 cycle.
New drivers
 
 * HID inclinometer driver.
 
 * DHT11 humidity driver.  Note that previous humidity drivers have been in
   hwmon, but no one was ever entirely happy with that, and they should find
   a more comfortable home in IIO (their original placement in hwmon was my
   fault - oops).  As this is our first humidity driver, core support is also
   added.
 
 New features
 
 * Two of mxs-lradc channels are internally wired to a temperature sensor,
   make this explicit in the driver by providing the relevant temperature
   channel.
 
 * Add support for blocking IO on buffers.
 
 * Add a data_available call back to the interface between buffer implementations
   and the core.  This is much cleaner than the old, 'stufftoread' flag.
   Implemented in the kfifo buffer.
 
 Cleanups
 
 * Last user of the old event configuration interface is converted and the
   old interface dropped.  Nice to be rid of this thanks to Lars-Peter's hard
   work!
 
 * Replace all remaining instances of the IIO_ST macro with explicit filling
   of the scan_type structure within struct iio_chan_spec.  This macro was a
   bad idea, that rapidly ceased to cover all elements of the structure.
   Miss reading of the macro arguements has led to a number of bugs so lets
   just get rid of it. The final removal patch is awaiting for some fixes
   to make their way into mainline.
   In a couple of drivers, no elements of scan_type were even being used so
   in those case, it has been dropped entirely.
 
 * Drop a couple of of_match_ptr helper uses in drivers where devicetree is
   not optional and hence the structures being protected by this always exist.
 
 * Fix up some cases where data was read from a device in a particular
   byte order, but he code placed it into a s16 or similar.  These were
   highlighted by Sparse.
 
 * Use the new ATTRIBUTE_GROUPS macro to drop some boiler plate in the triggers
   core code.
 
 * ad7746 and ad7280a - stop storing buffers on the stack, giving cleaner code
   and possibly avoiding issues with i2c bus drivers that assume they can dma
   directly into the buffer.  Note that this cannot currently happen as the the
   i2c_smbus_read_i2c_block_data function has a memcpy from the buffer actually
   passed to the bus driver.  I missed this element of the commit message
   and don't think it is major enough to rebase the iio tree.
 
 * ad5791 and ad5504 stop storing buffers on the stack for an SPI driver.
   Unlike the i2c drivers, this is a real issue for SPI drivers which can dma
   directly into the buffer supplied.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.22 (GNU/Linux)
 
 iQIcBAABAgAGBQJStyIbAAoJEFSFNJnE9BaI1goQAL0hKYCYuIl3d1fAy65u2I4h
 5mzJs/oJmomq/4BqAopfEQ8CbhZhksAYoR4JndOzZH7n4jVY/fRgyY/bH/Ymj0oI
 OpCtfee6IeeBLA0p8CMeEPem/pnwxRhSDzul9jsiwpTrTRKAIC1BPZwrmLpaoUfc
 obD8r1ocVZStzfsYBr3DUwkcIpcTQTCVy/Pl8HoKLKKsdYoFhTpNwEHJFOoZdiFi
 KKGRkeL9Q8VRWt/otWU0L0VFGZFwI1PWlxrqnbisVcGwSs8FF4wGcQvijfC0mUMg
 BdKDM7J4GrourZhj3og566B/8WMtGo6YTJXAe/QvvPp768rQncccDHem4V0Tnu49
 OJbjgD4ZGVXt3uBFaYddBIbMEIB8SfA2VYur/MW3gnZ7saSAtDk6TllsvC6CxIkR
 +LOOxWylhEGeJFIjyMrFPqRVhrrRNkuDRxPz8ZGTiDc8ovo6DWuTLsJrLSX8EJyZ
 O6TN6EEk8TCJaf8V63uTFW0Dlom4IQHyQei6LKhfhzwUQq/ri0esBp5P8lGzI3Uq
 wtOSdCDuYyoUEYPYbwjohFmQJ27w1rx9KcS4Y9BGmhTIRXslUg3hr+wA/gKMSDZ0
 /AUkLQajcv9otupfGzsp5mIWkthKKsGt/Y50xc5zIodnFtnM3nQGq4AqlP6t8nzP
 jucVwVMQLj5KaNH13P6K
 =Whfv
 -----END PGP SIGNATURE-----

Merge tag 'iio-for-3.14b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

2nd round of new IIO drivers, features and cleanups for the 3.14 cycle.

New drivers

* HID inclinometer driver.

* DHT11 humidity driver.  Note that previous humidity drivers have been in
  hwmon, but no one was ever entirely happy with that, and they should find
  a more comfortable home in IIO (their original placement in hwmon was my
  fault - oops).  As this is our first humidity driver, core support is also
  added.

New features

* Two of mxs-lradc channels are internally wired to a temperature sensor,
  make this explicit in the driver by providing the relevant temperature
  channel.

* Add support for blocking IO on buffers.

* Add a data_available call back to the interface between buffer implementations
  and the core.  This is much cleaner than the old, 'stufftoread' flag.
  Implemented in the kfifo buffer.

Cleanups

* Last user of the old event configuration interface is converted and the
  old interface dropped.  Nice to be rid of this thanks to Lars-Peter's hard
  work!

* Replace all remaining instances of the IIO_ST macro with explicit filling
  of the scan_type structure within struct iio_chan_spec.  This macro was a
  bad idea, that rapidly ceased to cover all elements of the structure.
  Miss reading of the macro arguements has led to a number of bugs so lets
  just get rid of it. The final removal patch is awaiting for some fixes
  to make their way into mainline.
  In a couple of drivers, no elements of scan_type were even being used so
  in those case, it has been dropped entirely.

* Drop a couple of of_match_ptr helper uses in drivers where devicetree is
  not optional and hence the structures being protected by this always exist.

* Fix up some cases where data was read from a device in a particular
  byte order, but he code placed it into a s16 or similar.  These were
  highlighted by Sparse.

* Use the new ATTRIBUTE_GROUPS macro to drop some boiler plate in the triggers
  core code.

* ad7746 and ad7280a - stop storing buffers on the stack, giving cleaner code
  and possibly avoiding issues with i2c bus drivers that assume they can dma
  directly into the buffer.  Note that this cannot currently happen as the the
  i2c_smbus_read_i2c_block_data function has a memcpy from the buffer actually
  passed to the bus driver.  I missed this element of the commit message
  and don't think it is major enough to rebase the iio tree.

* ad5791 and ad5504 stop storing buffers on the stack for an SPI driver.
  Unlike the i2c drivers, this is a real issue for SPI drivers which can dma
  directly into the buffer supplied.
2013-12-24 10:30:57 -08:00
Greg Kroah-Hartman
912cbd4952 Merge 3.13-rc5 into staging-next
This resolves a merge issue with drivers/staging/imx-drm/imx-drm-core.c

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-12-24 10:06:37 -08:00
Jonathan Cameron
e39d99059a iio:adc:ad7887 Fix channel reported endianness from cpu to big endian
Note this also sets the endianness to big endian whereas it would
previously have defaulted to the cpu endian.  Hence technically
this is a bug fix on LE platforms.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: stable@vger.kernel.org
2013-12-17 20:37:14 +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
54e018da31 iio:ad7266: Mark transfer buffer as __be16
Fixes the following warnings from sparse:
	drivers/iio/adc/ad7266.c:140:16: warning: cast to restricted __be16
	drivers/iio/adc/ad7266.c:140:16: warning: cast to restricted __be16
	drivers/iio/adc/ad7266.c:140:16: warning: cast to restricted __be16
	drivers/iio/adc/ad7266.c:140:16: 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 20:22:27 +00:00
Greg Kroah-Hartman
06749f192b Merge v3.13-rc2 into staging-next
we want these fixes in here.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-12-02 16:39:07 -08:00
Greg Kroah-Hartman
3ce5ae8d46 First set of new features, drivers and cleanups for IIO in the 3.14 cycle.
This mostly consists of patches that didn't quite make the last cycle. Lots
 of interesting things under review currently.
 
 Core:
 - Add devm_iio_device_register/unregister.  I took some convincing on whether
   there would be many devices that really were simple enough to need no
   explicit actions on removal.  Turns out there are some.
 - Move some stray docs to above the relevant implemenation.
 - Drop a redundant repeated check on the fact the trigger has actually changed
   when there is a userspace attempt change it.
 
 Drivers:
 New drivers
 - Freescale MPL3115A2 Pressure / temperature sensor
 
 New functionality
 - hid_sensors: add sensitivity support.
 
 DT bindings
 - tsl2563
 - hmc5843
 
 Cleanups
 - Drop unused scan_type from viperboard adc driver.
 - devm_iio_device_register used in viperboard, ad5421, ad5755, adis16130,
   adxrs450, vcnl4000, adis16220, ad7816, lpc32xx, adt7316, adis16060, isl29018
   and ad2s1200.  Note that this was proposed in a number of other drivers
   and this revealed a number of missorderings in remove functions.  Also for
   now I have blocked this on any device that any hardware suspend suport on
   the basis that we probably want to power down devices if they have no driver
   support loaded.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.22 (GNU/Linux)
 
 iQIcBAABAgAGBQJSk7pfAAoJEFSFNJnE9BaINEAP/2LKNkK/65BI8DOb3DQcRQWw
 yQAjYd43c7OWTW6clx3DRZiESI1qR7B1LeIV3P+jF1kvOS5qdE1WfYI9pQCLW+JL
 yRQgqLJknuHnrs+Bzw5CrGRcPDl5Zk31megcs0CcOt76LbQsaQ+w/blq9EiuVioW
 s2HfopsbVPQBe/IRA5ajLRG5gQYR4FIEIdzifzmv3Zydzhg9yFy5sk6vpSnzN6zM
 bh1Q8OooMDCqrCsKwzG1z5ZT4ki6oEILVQsiCblI9kcbw+GyKb95d63E0ZdlH72o
 ymowmRGujB+gS1zBh+1zLVjuaUytLHBUxAcQIFYwpOtbqaAYo68J5HFEyXWh5QpH
 aeMWnN4Cd54h83SsBofF05aFPGGK3iM6rioDpPJaLjBzJgFuRvIV87O3t0j1/3/Q
 VfXKYboGH4EVHsbARoUaQ4UP/0WlXoDQwX5XfBbsSlL9/U58JmrKAx6+HvmSyvcG
 5HKzOsVQNKbZMrSlBlvFzPXtRdJwRuv9TwWLLUatQKZAt66rdBgWcycOvlQv1m/9
 Neo/2b22vqoAN1AfyW32Hz7rQCnKxVczbTdex9I5ikNJmIPUfbZ6TAE/660HSVE2
 J70ZA6SHGU9Edhm0fkJNBhRanO3my4vQFUwcl457JY9O/BeC0xBhU1ZjvkFGysG0
 D/9TEiSaLoURkhxeeN0M
 =KZou
 -----END PGP SIGNATURE-----

Merge tag 'iio-for-3.14a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

First set of new features, drivers and cleanups for IIO in the 3.14 cycle.
This mostly consists of patches that didn't quite make the last cycle. Lots
of interesting things under review currently.

Core:
- Add devm_iio_device_register/unregister.  I took some convincing on whether
  there would be many devices that really were simple enough to need no
  explicit actions on removal.  Turns out there are some.
- Move some stray docs to above the relevant implemenation.
- Drop a redundant repeated check on the fact the trigger has actually changed
  when there is a userspace attempt change it.

Drivers:
New drivers
- Freescale MPL3115A2 Pressure / temperature sensor

New functionality
- hid_sensors: add sensitivity support.

DT bindings
- tsl2563
- hmc5843

Cleanups
- Drop unused scan_type from viperboard adc driver.
- devm_iio_device_register used in viperboard, ad5421, ad5755, adis16130,
  adxrs450, vcnl4000, adis16220, ad7816, lpc32xx, adt7316, adis16060, isl29018
  and ad2s1200.  Note that this was proposed in a number of other drivers
  and this revealed a number of missorderings in remove functions.  Also for
  now I have blocked this on any device that any hardware suspend suport on
  the basis that we probably want to power down devices if they have no driver
  support loaded.
2013-11-25 18:42:40 -08:00
Greg Kroah-Hartman
1676587bca First round of fixes for IIO in the 3.13 cycle.
The usual mixed bag of fixes.
 
 * 3 cases where kconfig dependencies were missing.  We need to keep a closer
   eye on this in new drivers.
 
 * hid_sensors was abusing the iio_dev->trigger pointer.  We had a round
   of clearing this out some time ago but this driver clearly slipped through.
 
 * A misuse of the IIO_ST macro, in mcp3422, which we should really make a
   concertive effort to finish removing.
 
 * Avoid a double free introduced by recent buffer reference counting in the
   one driver that (quite reasonably!) does things differently (am335x)
 
 * A missing mutex_unlock in kxsd9 that means that driver has been non
   functional for some time and no one noticed (including me who for once
   actually has one of the supported devices).
 
 * An incorrect assumption about the parameters of sign_extend32 in mcp3422.
 
 So nothing controversial.  The only substantial patch is the hid_sensors
 one and that is actually just adding a new pointer to the devices private
 state then moving the code over to it.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.22 (GNU/Linux)
 
 iQIcBAABAgAGBQJSk7SvAAoJEFSFNJnE9BaIRNsQAJnM/WiH1ghfA5nuc0V7JrnB
 2Z6Qtm3Stoq4Ul5LYiEMxumo6ckL17YFddxejUF9X4Eq5N8YyAxdPd8JdDJgS2OL
 yCM2x6izd9drIGA3YUMMOvZ1BScSK1e5DmXJHp4nuF68uHtf2TM4TGF/2zuqt3TN
 2bL7blNF3/5O/TiBRB4XjkH4Sy5c4G2kke+0SckRnWohTn8oE7tWihr84nYPciqt
 mu11Nrv9S+sr/5GzRwN8d5SU33yU2/ML32QU/4oQzb/XxBW0W759NJflqY5sSZ89
 JQnHcCKKZD7IWBFT0VAMiuEjBpSRGc4vxBbYjsVHtEHzW7v3L0fvob5YqfSrzMlD
 rVUiTQJm7fC/4hn7iJUPrxkWsSGsjCvVrLZmZFOK3OYONUfd+Cqg0nliihRZo65s
 054/yi4v8xd6OUzqSxtWKIK/ZQjDxa5W2BlRoryShCrUAo/e3Djy+jH32v4Mmgfe
 D9aEwdUqa8kPlq6pyQC2QRgWWU1K5+RRrzW5nNNLlmjYtVlfF+8OgcQYGHW8iMur
 8AaDXNZwQLEYA4409T/Ar9lNg4gDqc0YZsvNibu0q4Kxfp13dJOwra+xmF+ktECr
 KcIFxu5v89SgpE1Rra74OXYFWQ1I4Qy+sJxhQKymthPzmw4nuUidK33mxjtcojwz
 TvQJu8f3us8Ea5vQLZo0
 =cIMc
 -----END PGP SIGNATURE-----

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

Jonathan writes:

First round of fixes for IIO in the 3.13 cycle.

The usual mixed bag of fixes.

* 3 cases where kconfig dependencies were missing.  We need to keep a closer
  eye on this in new drivers.

* hid_sensors was abusing the iio_dev->trigger pointer.  We had a round
  of clearing this out some time ago but this driver clearly slipped through.

* A misuse of the IIO_ST macro, in mcp3422, which we should really make a
  concertive effort to finish removing.

* Avoid a double free introduced by recent buffer reference counting in the
  one driver that (quite reasonably!) does things differently (am335x)

* A missing mutex_unlock in kxsd9 that means that driver has been non
  functional for some time and no one noticed (including me who for once
  actually has one of the supported devices).

* An incorrect assumption about the parameters of sign_extend32 in mcp3422.

So nothing controversial.  The only substantial patch is the hid_sensors
one and that is actually just adding a new pointer to the devices private
state then moving the code over to it.
2013-11-25 12:50:11 -08:00
Sachin Kamat
2191d0fba7 iio: adc: viperboard: 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 21:07:15 +00:00
Sachin Kamat
2842d4cc72 iio: adc: mcp3422: 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 21:07:12 +00:00
Wolfram Sang
16735d022f tree-wide: use reinit_completion instead of INIT_COMPLETION
Use this new function to make code more comprehensible, since we are
reinitialzing the completion, not initializing.

[akpm@linux-foundation.org: linux-next resyncs]
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org> (personally at LCE13)
Cc: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-11-15 09:32:21 +09:00
Peter Meerwald
f227c13259 iio: Drop scan_type from viperboard adc driver
the driver does not support buffering, hence scan_type is not needed

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Cc: Lars Poeschel <poeschel@lemonage.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-11-09 13:51:23 +00:00
Lars-Peter Clausen
fe26980e03 iio: adc: ti_am335x_adc: avoid double free of buffer.
The driver is missing the iio_buffer_attach() call. As such it will attempt
to free the buffer twice on removal.

Introduced in commit 9e69c9 ("iio: Add reference counting for buffers").

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Reported-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-11-09 12:33:24 +00:00
Peter Meerwald
a5a3e43111 iio: Fix sign extension table in mcp3422 driver
the index argument to sign_extend32() gives the bit position (from 0)
to the sign bit

so e.g. if the measurement has 16-bit resolution, we need to pass 15;
a measurement of 0x8000 should be reported as -32768, not 32768

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Acked-by: Angelo Compagnucci <angelo.compagnucci@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-11-05 22:45:25 +00:00
Wei Yongjun
00582bf8e7 iio: at91: fix error return code in at91_adc_probe()
Fix to return -ENODEV instead of 0 if non-TSMR adc don't
support, as done elsewhere in this function.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Josh Wu <josh.wu@atmel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-11-02 12:07:54 +00:00
Sachin Kamat
ae0f29d159 iio: adc: twl6030-gpadc: 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.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-24 14:45:09 +01:00
Sachin Kamat
de06b344ac iio: adc: ti_am335x_adc: Remove redundant of_match_ptr
ti_adc_dt_ids is always compiled in. Hence of_match_ptr is not
needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-23 17:52:25 +01:00
Sachin Kamat
d453a4ab11 iio: adc: nau7802: Remove redundant of_match_ptr
nau7802_dt_ids is always compiled in. Hence of_match_ptr is not
needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-23 17:52:25 +01:00
Sachin Kamat
fc21acc471 iio: adc: twl6030-gpadc: Remove redundant of_match_ptr
of_twl6030_match_tbl is always compiled in. Hence of_match_ptr is
not necessary.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-23 17:51:24 +01:00
Vivien Didelot
61bdda6922 iio:adc:max1363 support SMBus for 8-bit devices
The driver currently supports only I2C access. But supported devices with an
accuracy of 8-bit are compatible with the SMBus byte access routines.

This patch wraps the send and receive routines depending on the chip
accuracy and fonctionnalities of its adapter.

For instance, this allows us to use a MAX11603 on a ICH7 controller.

This patch also simplifies the max1363_write_basic_config() routine to
use the struct max1363_state fields directly.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-20 22:36:21 +01:00
Sachin Kamat
1f100e80bb iio: adc: ti-adc081c: Include linux/of.h header
'of_match_ptr' is defined in linux/of.h. Include it explicitly to
avoid build breakage in the future.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-18 20:05:56 +01:00
Sachin Kamat
62ba493ea4 iio: adc: nau7802: Include linux/of.h header
'of_match_ptr' is defined in linux/of.h. Include it explicitly to
avoid build breakage in the future.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-18 20:05:56 +01:00
Sachin Kamat
de36d817b4 iio: adc: mcp3422: Include linux/of.h header
'of_match_ptr' is defined in linux/of.h. Include it explicitly to
avoid build breakage in the future.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-18 20:05:56 +01:00
Josh Wu
c8b11de040 iio: at91: introduce touch screen support in iio adc driver
AT91 ADC hardware integrate touch screen support. So this patch add touch
screen support for at91 adc iio driver.
To enable touch screen support in adc, you need to add the dt parameters:
  1. which type of touch are used? (4 or 5 wires), sample period time.
  2. correct pressure detect threshold value.

In the meantime, since touch screen will use a interal period trigger of adc,
so it is conflict to other hardware triggers. Driver will disable the hardware
trigger support if touch screen is enabled.

This driver has been tested in AT91SAM9X5-EK and SAMA5D3x-EK.

Signed-off-by: Josh Wu <josh.wu@atmel.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
CC: devicetree@vger.kernel.org
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-17 23:57:10 +01:00
Lars-Peter Clausen
24adaf7958 iio:ti_am335x: Remove redundant call to iio_sw_buffer_preenable()
The equivalent of iio_sw_buffer_preenable() is now done in the IIO buffer
core, so there is no need to do this from the driver anymore.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Zubair Lutfullah <zubair.lutfullah@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-16 19:12:46 +01:00
Lars-Peter Clausen
eddcee851a iio:ad_sigma_delta: Remove redundant call to iio_sw_buffer_preenable().
The equivalent of iio_sw_buffer_preenable() is now done in the IIO buffer core,
so there is no need to do this from the driver anymore.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-16 19:12:40 +01:00
Lars-Peter Clausen
41288e0f62 iio:ad7887: Remove redundant call to iio_sw_buffer_preenable().
The equivalent of iio_sw_buffer_preenable() is now done in the IIO buffer core,
so there is no need to do this from the driver anymore.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-16 19:12:04 +01:00
Lars-Peter Clausen
06e1b542bb iio:ad7266: Remove redundant call to iio_sw_preenable()
The equivalent of iio_sw_buffer_preenable() is now done in the IIO buffer core,
so there is no need to do this from the driver anymore.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-16 19:11:31 +01:00
Lars-Peter Clausen
e4ec84f83d iio:max1363: Switch to new event config interface
Switch the max1363 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 12:33:59 +01:00
Josh Wu
2b6d598bc9 iio: at91: move the num_channels from DT to driver itself
CC: devicetree@vger.kernel.org
Signed-off-by: Josh Wu <josh.wu@atmel.com>
Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-09 21:15:39 +01:00
Josh Wu
c46016665f iio: at91: ADC start-up time calculation changed since at91sam9x5
Since in at91sam9x5, sama5d3x chip. the start up time calucation is changed.
This patch can choose different start up time calculation formula for different
chips.

Signed-off-by: Josh Wu <josh.wu@atmel.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-09 21:15:32 +01:00
Lars-Peter Clausen
b2171677cb iio:max1363: 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 16:19:12 +01:00
Lars-Peter Clausen
c45e561ee8 iio:at91: 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: Josh Wu <josh.wu@atmel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-01 16:19:12 +01:00
Lars-Peter Clausen
488a21827a iio:ad7791: 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 16:19:12 +01:00
Lars-Peter Clausen
d88c89db9a iio:ad7476: 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 16:19:12 +01:00
Lars-Peter Clausen
2ebc39c0bb iio:ad7266: 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 16:19:12 +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
Jonathan Cameron
09f33c3320 iio:ti_am335x_adc ensure that IIO_KFIFO_BUF is not selected witout IIO_BUFFER
This avoids build problems such iio_push_to_buffers* not being defined.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
2013-09-28 11:36:29 +01:00
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
Zubair Lutfullah
074b6a8d9d iio: ti_am335x_adc: cleanup error case
Driver is functional without this error case. Cleaned up.

Signed-off-by: Zubair Lutfullah <zubair.lutfullah@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-09-22 19:02:48 +01:00
Zubair Lutfullah
a77d020912 iio: ti_am335x_adc: cleanup trigger related code
Trigger related headers and variables are not needed
as driver is now based on INDIO_BUFFER_HARDWARE mode

Signed-off-by: Zubair Lutfullah <zubair.lutfullah@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-09-22 19:02:48 +01:00
Zubair Lutfullah
98c08cf4e3 iio: ti_am335x_adc: fix static in function header
Static is missing in function header. Corrected.

Signed-off-by: Zubair Lutfullah <zubair.lutfullah@gmail.com>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-09-22 19:01:12 +01:00
Lars-Peter Clausen
d49d95c25d iio:max1363: Use iio_push_to_buffers_with_timestamp()
Makes the code a bit shorter and less ugly.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-09-21 19:23:55 +01:00
Lars-Peter Clausen
e79cece0dc iio:at91_adc: Use iio_push_to_buffers_with_timestamp()
Makes the code a bit shorter and less ugly.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Josh Wu <josh.wu@atmel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-09-21 19:23:55 +01:00
Lars-Peter Clausen
a1be505f49 iio:ad_sigma_delta: Use iio_push_to_buffers_with_timestamp()
Makes the code a bit shorter and less ugly.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-09-21 19:23:54 +01:00
Lars-Peter Clausen
9f4fa4f714 iio:ad7923: Use iio_push_to_buffers_with_timestamp()
Makes the code a bit shorter and less ugly.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-09-21 19:23:53 +01:00
Lars-Peter Clausen
5afd602b90 iio:ad7887: Use iio_push_to_buffers_with_timestamp()
Makes the code a bit shorter and less ugly.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-09-21 19:23:53 +01:00
Lars-Peter Clausen
b05583a71d iio:ad7476: Use iio_push_to_buffers_with_timestamp()
Makes the code a bit shorter and less ugly.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-09-21 19:23:52 +01:00
Lars-Peter Clausen
85ec2372c8 iio:ad7298: Use iio_push_to_buffers_with_timestamp()
Makes the code a bit shorter and less ugly.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-09-21 19:23:52 +01:00