Commit Graph

194 Commits

Author SHA1 Message Date
Crestez Dan Leonard
a6b5ec887b ti-adc081c: Add support for adc101c and adc121c
These chips have an almost identical interface but support a different
number of value bits. Datasheet links for comparison:

 * http://www.ti.com/lit/ds/symlink/adc081c021.pdf
 * http://www.ti.com/lit/ds/symlink/adc101c021.pdf
 * http://www.ti.com/lit/ds/symlink/adc121c021.pdf

Signed-off-by: Crestez Dan Leonard <leonard.crestez@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-04-17 10:43:32 +01:00
Greg Kroah-Hartman
eb7bfed901 First round of IIO new device support, features and cleanups for the 4.7 cycle.
New core support
 * UV light modifier (for intensity)
 * UV light index channel type.
 
 New device support
 * hp206c barometer and altimeter
   - new driver.
 * mcp4131 potentiometer
   - new driver supporting lots of parts from Microchip.
 * mma8452
   - FXLS8471Q support
 - NXP LPC18XX SOC ADC
   - new driver.
 - NXP LPC18XX SOC DAC
   - new driver.
 - rockchip_saradc
   - support rk3399
 * st accel
   - h3lis331dl support
 
 Staging driver removals
 * adis16204
   - obsolete part making it hard to get parts to test the driver in order
     to clean it up.
 * adis16220
   - obsolete part making it hard to get the parts test the driver in order
     to clean it up.
 
 Features
 * core
   - convenience functions to claim / release direct access to the device.
     Makes more consistent handling of this corner easier. Used in ad7192 driver.
 * ak8975
   - power regulator support.
 * at91-sama5d2
   - differential channel support.
 * mma8452
   - runtime pm support
   - drop device specific autosleep and use the runtime pm one instead.
 * ms5611
   - DT bindings
   - oversampling ratio support
 
 Cleanups and minor fixes
 * MAINTAINERS
   - Peter got married - hence name change!
 
 * Documentation
   - Fix a typo in in_proximity_raw description.
   - Add some missing docs for iio_buffer_access_funcs.
 
 * Tools
   - update iio_event_monitor names to match new stuff.
   - make generic_buffer look for triggers ending in -trigger as we let these in
   for a number of drivers a long time back and now it is a fairly common
   option.
 
 Drivers
 * staging wide
   - convert bare unsigned usage to unsigned int to comply with coding style.
 * non staging wide:
   - since boiler plate gpio handling of interrupts has been moved into the
    ACPI core we don't need to include gpio/consumer.h in a load of drivers so
    drop it.
 * ad7606
   - fix an endian casting sparse warning.
 * ak8975
   - fix a possible unitialized warning from gcc.
   - drop and unused field left over from earlier cleanups
   - fix a missing regulator_disable on exit.
 * at91-sama5d2
   - typo and indentation
   - missing IOMEM dependency.
   - cleanup mode register usage by avoidling erasing whole thing when changing
   the sampling frequency.
 * bmc150
   - use the core demux and available_scan_masks to simplify buffer handling
   - optimize the transfers in the trigger handler now we have a magic function
   to emulate bulk reads (under circumstances met here).  This matters with some
   rather dumb i2c adapters in particular.
   - use a single regmap_conf for all bus types as they were all the same.
 * bmg160
   - use the core demux and available_scan_masks to simplify the buffer handling
   - optimize the transfers in the trigger handler now we have a magic funciton
   to emulate bulk rads (under circumstances met here).
   - drop gpio interrupt probing from the driver (ACPI) as now handled by the
   ACPI core.
 * ina2xx-adc
   - update the CALIB register when RShunt changes.
   - fix scale for VShunt - in reality this error canceled out when used.
 * isl29028
   - use regmap to retrieve the struct device instead of carrying a second
   copy of it around.
 * kxcjk-1013
   - use core demux
   - optimize i2c transfers in the trigger handler.
 * mcp4531
   - refactor to use a pointer to access model parameters instead of indexing
     into the array each time.
 * mma8452
   - style fixes
   - avoid swtiching to active whenever the config changes
   - add missin i2c_device_id for mma8451
 * mpu6050
   - fix possible NULL dereference.
   - fix the name / chip_id used when ACPI used (otherwise reports as NULL).
 * ms5611
   - fix a missing regulator_disable that left the regulator on during removal.
 * mxc4005
   - drop gpio interrupt handling for ACPI case from driver as the core now
   handles this case.
 * st-sensors
   - note that there are only ever a maximum of 3 axis on current st-sensors
   so just allocate a fixed sized buffer big enough for that.
 * tpl0102
   - change the i2c_check_functionality condition to bring it inline with other
     IIO users as EOPNOTSUPP.
 * tsl2563
   - replace deprecated flush_scheduled_work
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Merge tag 'iio-for-4.7a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

First round of IIO new device support, features and cleanups for the 4.7 cycle.

New core support
* UV light modifier (for intensity)
* UV light index channel type.

New device support
* hp206c barometer and altimeter
  - new driver.
* mcp4131 potentiometer
  - new driver supporting lots of parts from Microchip.
* mma8452
  - FXLS8471Q support
- NXP LPC18XX SOC ADC
  - new driver.
- NXP LPC18XX SOC DAC
  - new driver.
- rockchip_saradc
  - support rk3399
* st accel
  - h3lis331dl support

Staging driver removals
* adis16204
  - obsolete part making it hard to get parts to test the driver in order
    to clean it up.
* adis16220
  - obsolete part making it hard to get the parts test the driver in order
    to clean it up.

Features
* core
  - convenience functions to claim / release direct access to the device.
    Makes more consistent handling of this corner easier. Used in ad7192 driver.
* ak8975
  - power regulator support.
* at91-sama5d2
  - differential channel support.
* mma8452
  - runtime pm support
  - drop device specific autosleep and use the runtime pm one instead.
* ms5611
  - DT bindings
  - oversampling ratio support

Cleanups and minor fixes
* MAINTAINERS
  - Peter got married - hence name change!

* Documentation
  - Fix a typo in in_proximity_raw description.
  - Add some missing docs for iio_buffer_access_funcs.

* Tools
  - update iio_event_monitor names to match new stuff.
  - make generic_buffer look for triggers ending in -trigger as we let these in
  for a number of drivers a long time back and now it is a fairly common
  option.

Drivers
* staging wide
  - convert bare unsigned usage to unsigned int to comply with coding style.
* non staging wide:
  - since boiler plate gpio handling of interrupts has been moved into the
   ACPI core we don't need to include gpio/consumer.h in a load of drivers so
   drop it.
* ad7606
  - fix an endian casting sparse warning.
* ak8975
  - fix a possible unitialized warning from gcc.
  - drop and unused field left over from earlier cleanups
  - fix a missing regulator_disable on exit.
* at91-sama5d2
  - typo and indentation
  - missing IOMEM dependency.
  - cleanup mode register usage by avoidling erasing whole thing when changing
  the sampling frequency.
* bmc150
  - use the core demux and available_scan_masks to simplify buffer handling
  - optimize the transfers in the trigger handler now we have a magic function
  to emulate bulk reads (under circumstances met here).  This matters with some
  rather dumb i2c adapters in particular.
  - use a single regmap_conf for all bus types as they were all the same.
* bmg160
  - use the core demux and available_scan_masks to simplify the buffer handling
  - optimize the transfers in the trigger handler now we have a magic funciton
  to emulate bulk rads (under circumstances met here).
  - drop gpio interrupt probing from the driver (ACPI) as now handled by the
  ACPI core.
* ina2xx-adc
  - update the CALIB register when RShunt changes.
  - fix scale for VShunt - in reality this error canceled out when used.
* isl29028
  - use regmap to retrieve the struct device instead of carrying a second
  copy of it around.
* kxcjk-1013
  - use core demux
  - optimize i2c transfers in the trigger handler.
* mcp4531
  - refactor to use a pointer to access model parameters instead of indexing
    into the array each time.
* mma8452
  - style fixes
  - avoid swtiching to active whenever the config changes
  - add missin i2c_device_id for mma8451
* mpu6050
  - fix possible NULL dereference.
  - fix the name / chip_id used when ACPI used (otherwise reports as NULL).
* ms5611
  - fix a missing regulator_disable that left the regulator on during removal.
* mxc4005
  - drop gpio interrupt handling for ACPI case from driver as the core now
  handles this case.
* st-sensors
  - note that there are only ever a maximum of 3 axis on current st-sensors
  so just allocate a fixed sized buffer big enough for that.
* tpl0102
  - change the i2c_check_functionality condition to bring it inline with other
    IIO users as EOPNOTSUPP.
* tsl2563
  - replace deprecated flush_scheduled_work
2016-04-04 12:31:05 -07:00
Linus Torvalds
12e7b0a627 - New Drivers
- Freescale Touch Screen ADC
    - X-Powers AXP PMIC with RSB
    - TI TPS65086 Power Management IC (PMIC)
  - New Device Support
    - Supply device PCI IDs for Intel Broxton
  - Fix-ups
    - Move to clkdev_create() API; intel_quark_i2c_gpio
    - Complete re-write of TI's TPS65912 Power Management IC (PMIC)
    - Remove unnecessary function argument; axp20x
    - Separate out bus related code; axp20x
    - Coding Style changes; axp20x
    - Allow more drivers to be compiled as modules
    - Work around false positive 'used uninitialised' warning; db8500-prcmu
  - Bug Fixes
    - Remove do_div(); fsl-imx25-gcq
    - Fix driver init when built-in; tps65010
    - Fix clock-unregister leak; intel-lpss
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Merge tag 'mfd-for-linus-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull MFD updates from Lee Jones:
 "New Drivers:
   - Freescale Touch Screen ADC
   - X-Powers AXP PMIC with RSB
   - TI TPS65086 Power Management IC (PMIC)

  New Device Support:
   - Supply device PCI IDs for Intel Broxton

  Fix-ups:
   - Move to clkdev_create() API; intel_quark_i2c_gpio
   - Complete re-write of TI's TPS65912 Power Management IC (PMIC)
   - Remove unnecessary function argument; axp20x
   - Separate out bus related code; axp20x
   - Coding Style changes; axp20x
   - Allow more drivers to be compiled as modules
   - Work around false positive 'used uninitialised' warning; db8500-prcmu

  Bug Fixes:
   - Remove do_div(); fsl-imx25-gcq
   - Fix driver init when built-in; tps65010
   - Fix clock-unregister leak; intel-lpss"

* tag 'mfd-for-linus-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (53 commits)
  mfd: intel-lpss: Pass I2C configuration via properties on BXT
  mfd: imx6sx: Add PCIe register definitions for iomuxc gpr
  mfd: ipaq-micro: Use __maybe_unused to hide pm functions
  mfd: max77686: Add max77802 to I2C device ID table
  mfd: max77686: Export OF module alias information
  mfd: max77686: Allow driver to be built as a module
  mfd: stmpe: Add the proper PWM resources
  mfd: tps65090: Set regmap config reg counts properly
  mfd: syscon: Return ENOTSUPP instead of ENOSYS when disabled
  mfd: as3711: Set regmap config reg counts properly
  mfd: rc5t583: Set regmap config reg counts properly
  gpio: tps65086: Add GPO driver for the TPS65086 PMIC
  mfd: mt6397: Add platform device ID table
  mfd: da9063: Fix missing volatile registers in the core regmap_range volatile lists
  mfd: mt6397: Add MT6323 support to MT6397 driver
  mfd: mt6397: Add support for different Slave types
  mfd: mt6397: int_con and int_status may vary in location
  dt-bindings: mfd: Add bindings for the MediaTek MT6323 PMIC
  mfd: da9062: Fix missing volatile registers in the core regmap_range volatile lists
  mfd: Add documentation for ACT8945A DT bindings
  ...
2016-03-18 10:15:11 -07:00
Joachim Eastwood
a583c24dee iio: adc: add NXP LPC18xx ADC driver
Add base support for the 10-bit SAR ADC peripheral found
on NXP LPC18xx/43xx SoCs.

This is a minimal driver that does not support burst mode,
interrupts, DMA or hardware triggers.

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 18:11:48 +00:00
Krzysztof Kozlowski
e84a41d5db iio: adc: Fix build error of missing devm_ioremap_resource on UM
The devres.o gets linked if HAS_IOMEM is present so on ARCH=um
allyesconfig (COMPILE_TEST) failed with:

drivers/built-in.o: In function `at91_adc_probe':
at91-sama5d2_adc.c:(.text+0x48f548): undefined reference to `devm_ioremap_resource'

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-03-05 18:48:14 +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.
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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
Daniel Baluta
ecc24e72f4 iio: adc: Add TI ADS1015 ADC driver support
The driver has sysfs readings with runtime PM support for power saving.
It also offers buffer support that can be used together with IIO software
triggers.

Datasheet can be found here:
	http://www.ti.com.cn/cn/lit/ds/symlink/ads1015.pdf

Signed-off-by: Daniel Baluta <daniel.baluta@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-02-13 20:54:15 +00:00
Markus Pargmann
6df2e98c3e iio: adc: Add imx25-gcq ADC driver
This is a conversion queue driver for the mx25 SoC. It uses the central
ADC which is used by two seperate independent queues. This driver
prepares different conversion configurations for each possible input.
For a conversion it creates a conversionqueue of one item with the
correct configuration for the chosen channel. It then executes the queue
once and disables the conversion queue afterwards.

The reference voltages are configurable through devicetree subnodes,
depending on the connections of the ADC inputs.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Denis Carikli <denis@eukrea.com>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-02-11 15:40:41 +00:00
Ksenija Stanojevic
f836c45922 iio: adc: Move mxs-lradc out of staging
Move mxs-lradc driver from drivers/staging/iio/adc to drivers/iio/adc.

Signed-off-by: Ksenija Stanojevic <ksenija.stanojevic@gmail.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-02-10 19:29:37 +00:00
Akinobu Mita
efc945fb72 iio: adc: add support for ADC0831/ADC0832/ADC0834/ADC0838 chips
This adds ADC0831/ADC0832/ADC0834/ADC0838 8-bit ADC driver.
I have tested with ADC0831 and ADC0832.  The remaining ADC0834 and
ADC0838 are very similar to ADC0832.

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>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-02-09 22:22:32 +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
Richard Weinberger
0165c3005f iio: adc: Fix dependencies for !HAS_IOMEM archs
Not every arch has io memory.
So, unbreak the build by fixing the dependencies.

Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-01-30 15:43:49 +00:00
Ludovic Desroches
b9cd7a254d MAINTAINERS: add entry for Atmel SAMA5D2 ADC driver
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-01-16 11:34:06 +00:00
Ludovic Desroches
27e1771908 iio:adc:at91_adc8xx: introduce new atmel adc driver
This driver supports the new version of the Atmel ADC device introduced
with the SAMA5D2 SoC family.

Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-01-16 11:27:02 +00:00
Akinobu Mita
505abf99c7 iio: adc: mcp3422: Add support for MCP3425
The MCP3425 is a single channel up to 16-bit A/D converter which has
features:

- On-Board Programmable Gain Amplifier (PGA):
 - Gains of 1, 2, 4 or 8
- Programmable Data Rate Options:
 - 15 SPS (16 bits), 60 SPS (14 bits), 240 SPS (12 bits)

The mcp3422 driver also supports the MCP3421 which is a single channel.
So we can support MCP3425 with a little changes to mcp3422 driver.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Angelo Compagnucci <angelo.compagnucci@gmail.com>
Cc: Peter Meerwald <pmeerw@pmeerw.net>
Cc: linux-iio@vger.kernel.org
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-01-02 18:32:03 +00:00
Haibo Chen
16846ebeff iio: adc: add IMX7D ADC driver support
Freescale i.MX7D soc contains a new ADC IP. This patch add this ADC
driver support, and the driver only support ADC software trigger.

Signed-off-by: Haibo Chen <haibo.chen@freescale.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-12-12 16:25:41 +00:00
Marc Titinger
c43a102e67 iio: ina2xx: add support for TI INA2xx Power Monitors
in SOFTWARE buffer mode, a kthread will capture the active scan_elements
into a kfifo, then compute the remaining time until the next capture tick
and do an active wait (udelay).

This will produce a stream of up to fours channels plus a 64bits
timestamps (ns).

Tested with ina226, on BeagleBoneBlack.

Datasheet: http://www.ti.com/lit/gpn/ina226

Signed-off-by: Marc Titinger <mtitinger@baylibre.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-12-12 16:07:36 +00:00
Oliver Stäbler
b41fa86b67 iio:adc128s052: add support for adc124s021
Signed-off-by: Oliver Stäbler <oliver.staebler@bytesatwork.ch>
Reviewed-by: Martin Kepplinger <martink@posteo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-12-12 12:08:17 +00:00
Sean Nyekjaer
3e87e78383 iio: adc: Add TI ADS8688
This patch adds support for the Texas Intruments ADS8688 ADC.

Signed-off-by: Sean Nyekjaer <sean.nyekjaer@prevas.dk>
Reviewed-by: Martin Hundebøll <martin.hundeboll@prevas.dk>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-11-15 10:54:44 +00:00
H. Nikolaus Schaller
e08e19c331 iio:adc: add iio driver for Palmas (twl6035/7) gpadc
This driver code was found as:

aaabb2e045/drivers/staging/iio/adc

Fixed various compilation issues and test this driver on omap5 evm.

Signed-off-by: Pradeep Goudagunta <pgoudagunta@nvidia.com>
Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: Marek Belisko <marek@goldelico.com>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-10-25 12:02:41 +00:00
Vladimir Barinov
72aa29ce0a iio: adc: hi8435: Holt HI-8435 threshold detector
Add Holt threshold detector driver for HI-8435 chip

Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-09-23 20:23:18 +01:00
Sanchayan Maity
0010d6b444 iio: adc: vf610: Add IIO buffer support for Vybrid ADC
This patch adds support for IIO buffer to the Vybrid ADC driver.
IIO triggered buffer infrastructure along with iio sysfs trigger
is used to leverage continuous sampling support provided by the
ADC block.

Signed-off-by: Sanchayan Maity <maitysanchayan@gmail.com>
Acked-by: Fugang Duan <B38611@freescale.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-08-31 16:19:30 +01:00
Hartmut Knaack
47d5e30ae3 iio:adc:cc10001_adc: resort entry in Kconfig and Makefile
Move the entry for the CC 10001 ADC driver in Kconfig and Makefile up to
maintain alphabetic order.

Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-08-12 22:20:42 +01:00
Greg Kroah-Hartman
1c46ae0af6 Second set of new device support, features and cleanup for the 4.3 cycle.
Take 2 also includes a fix set that was too late for the 4.2 cycle.
 
 As we had a lot of tools and docs work in this set, I have broken those
 out into their own categories in this description.
 
 Fixes from the pull request '4th set of IIO fixes for the 4.2 cycle'.
 * Poll functions for both event chardev and the buffer one were returning
   negative error codes (via a positive value).
 * A recent change to lsiio adding some error handling that was wrong and
   stopped the tool working.
 * bmg160 was missing some dependencies in Kconfig
 * berlin2-adc had a misshandled register (wrote a value rather than a bitmap)
 
 New device support
 * TI opt3001 light sensor
 * TXC PA12 ALS and proximity sensor.
 * mcp3301 ADC support (in mcp320x driver)
 * ST lsm303agr accelerometer and magnetometer drivers (plus some st-sensors
   common support to allow different WHOAMI register addresses, devices with
   fixed scale and allow interrupt equiped magnetometers).
 * ADIS16305, ADIS16367, ADIS16445IMUs (in the adis16400 driver)
 * ADIS16266 gyro (in the adis16260 driver)
 * ADIS16137 gyro (in the adis16136 driver)
 
 New functionality
 * mmc35240 DT bindings.
 * Inverse unit conversion macros to aid handing of values written to sysfs
   attributes.
 
 Core cleanup
 * Forward declaration of struct iio_trigger to avoid a compile warning.
 
 Driver cleanup / fixes
 * mxs-lradc
   - Clarify which parts are supported.
   - Fix spelling erorrs.
   - Missing/extra includes
   - reorder includes
   - add datasheet name listings for all usable channels (to allow them
     to be bound by name from consumer drivers)
 * acpi-als - add some function prefixes as per general iio style.
 * bmc150_magn - replace a magic value with the existing define.
 * vf610 - determine possible sample frequencies taking into account the
   electrical characteristics (defining a minimum sample time)
 * dht11
   - whitespace
   - additional docs
   - avoid mulitple assignments in one line
   - Use the new funciton ktime_get_resolution_ns to cleanup a nasty trick
     previously used for timing.
 * Fix all drivers that consider 0 a valid IRQ for historical reasons.
 * Export I2C module alias info where previously missing (to allow autoprobing)
 * Export OF module alias info where previously missing.
 * mmc35240 - switch some variables into arrays to improve readability.
 * mlx90614 - define some magic numbers for readability.
 * bmc150_magn
   - expand area locked by a mutex to cover all the use of the
     data->buffer.
   - use descriptive naming for a mask instead of a magic value.
 * berin2-adc
   - pass up an error code rather that a generic error
   - constify the iio_chan_spec
   - some other little tidy ups.
 * stk8312
   - fix a dependency on triggered buffers in kconfig
   - add a check for invalid attribute values
   - improve error handling by returning error codes where possible and
     return immediately where relevant
   - rework macro defs to use GENMASK etc
   - change some variable types to reduce unnecessary casting
   - clean up code style
   - drop a local buffer copy for bulk reads and use the one in data->buffer
      instead.
 * adis16400 - the adis16448 gyroscope scale was wrong.
 * adis16480 - some more wrong scales for various parts.
 * adis16300 - has an undocumented product id and serial number registers so
   use them.
 * iio_simple_dummy - fix some wrong code indentation.
 * bmc150-accel - use the chip ID to detect the chip present rather than
   verifying the expected part was there.  This was in response to a wrong
   ACPI entry on the WinBook TW100.
 * mma8452
   - fix _get_hp_filter_index
   - drop a double include
   - pass up an error code rather than rewriting it
   - range check input values to attribute writes
   - register defs tidy up using GENMASK and reordering them to be easier to
     follow.
   - various coding style cleanups
   - put the Kconfig entry in the write place (alphabetically).
 
 Tools related
 * Tools cleanup - drop an explicity NULL comparison, some unnecessary braces,
   use the ARRAY_SIZE macro, send error messages to stderr instead of dropping
   them in the middle of normal output.
 * Fix tools to allow that scale and offset attributes are optional.
 * More tools fixes including allowing true 32bit data (previously an overflow
   prevented more than 31bits)
 * Drop a stray header guard that ended up in a c file.
 * Make calc_digits static as it isn't exported or in the header.
 * Set ci_array pointer to NULL after free as a protection against non safe
   usage of the tools core code.  Also convert a double pointer to a single
   one as the extra level of indirection was unnecessary.
 
 Docs
 * DocBook introduction by Daniel Baluta.  Glad we are beginning to
   draw together some more introductory docs to suplement the various
   tools / examples.
 * Drop bytes_per_datum sysfs attribute docs as it no longer exists.
 * A whole load of missing / fixing of kernel-doc for the core of IIO.
 * Document the trigger name sysfs attribute in the ABI docs.
 * Minor typos in the ABI docs related to power down modes.
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Merge tag 'iio-for-4.3b-2' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

Second set of new device support, features and cleanup for the 4.3 cycle.
Take 2 also includes a fix set that was too late for the 4.2 cycle.

As we had a lot of tools and docs work in this set, I have broken those
out into their own categories in this description.

Fixes from the pull request '4th set of IIO fixes for the 4.2 cycle'.
* Poll functions for both event chardev and the buffer one were returning
  negative error codes (via a positive value).
* A recent change to lsiio adding some error handling that was wrong and
  stopped the tool working.
* bmg160 was missing some dependencies in Kconfig
* berlin2-adc had a misshandled register (wrote a value rather than a bitmap)

New device support
* TI opt3001 light sensor
* TXC PA12 ALS and proximity sensor.
* mcp3301 ADC support (in mcp320x driver)
* ST lsm303agr accelerometer and magnetometer drivers (plus some st-sensors
  common support to allow different WHOAMI register addresses, devices with
  fixed scale and allow interrupt equiped magnetometers).
* ADIS16305, ADIS16367, ADIS16445IMUs (in the adis16400 driver)
* ADIS16266 gyro (in the adis16260 driver)
* ADIS16137 gyro (in the adis16136 driver)

New functionality
* mmc35240 DT bindings.
* Inverse unit conversion macros to aid handing of values written to sysfs
  attributes.

Core cleanup
* Forward declaration of struct iio_trigger to avoid a compile warning.

Driver cleanup / fixes
* mxs-lradc
  - Clarify which parts are supported.
  - Fix spelling erorrs.
  - Missing/extra includes
  - reorder includes
  - add datasheet name listings for all usable channels (to allow them
    to be bound by name from consumer drivers)
* acpi-als - add some function prefixes as per general iio style.
* bmc150_magn - replace a magic value with the existing define.
* vf610 - determine possible sample frequencies taking into account the
  electrical characteristics (defining a minimum sample time)
* dht11
  - whitespace
  - additional docs
  - avoid mulitple assignments in one line
  - Use the new funciton ktime_get_resolution_ns to cleanup a nasty trick
    previously used for timing.
* Fix all drivers that consider 0 a valid IRQ for historical reasons.
* Export I2C module alias info where previously missing (to allow autoprobing)
* Export OF module alias info where previously missing.
* mmc35240 - switch some variables into arrays to improve readability.
* mlx90614 - define some magic numbers for readability.
* bmc150_magn
  - expand area locked by a mutex to cover all the use of the
    data->buffer.
  - use descriptive naming for a mask instead of a magic value.
* berin2-adc
  - pass up an error code rather that a generic error
  - constify the iio_chan_spec
  - some other little tidy ups.
* stk8312
  - fix a dependency on triggered buffers in kconfig
  - add a check for invalid attribute values
  - improve error handling by returning error codes where possible and
    return immediately where relevant
  - rework macro defs to use GENMASK etc
  - change some variable types to reduce unnecessary casting
  - clean up code style
  - drop a local buffer copy for bulk reads and use the one in data->buffer
     instead.
* adis16400 - the adis16448 gyroscope scale was wrong.
* adis16480 - some more wrong scales for various parts.
* adis16300 - has an undocumented product id and serial number registers so
  use them.
* iio_simple_dummy - fix some wrong code indentation.
* bmc150-accel - use the chip ID to detect the chip present rather than
  verifying the expected part was there.  This was in response to a wrong
  ACPI entry on the WinBook TW100.
* mma8452
  - fix _get_hp_filter_index
  - drop a double include
  - pass up an error code rather than rewriting it
  - range check input values to attribute writes
  - register defs tidy up using GENMASK and reordering them to be easier to
    follow.
  - various coding style cleanups
  - put the Kconfig entry in the write place (alphabetically).

Tools related
* Tools cleanup - drop an explicity NULL comparison, some unnecessary braces,
  use the ARRAY_SIZE macro, send error messages to stderr instead of dropping
  them in the middle of normal output.
* Fix tools to allow that scale and offset attributes are optional.
* More tools fixes including allowing true 32bit data (previously an overflow
  prevented more than 31bits)
* Drop a stray header guard that ended up in a c file.
* Make calc_digits static as it isn't exported or in the header.
* Set ci_array pointer to NULL after free as a protection against non safe
  usage of the tools core code.  Also convert a double pointer to a single
  one as the extra level of indirection was unnecessary.

Docs
* DocBook introduction by Daniel Baluta.  Glad we are beginning to
  draw together some more introductory docs to suplement the various
  tools / examples.
* Drop bytes_per_datum sysfs attribute docs as it no longer exists.
* A whole load of missing / fixing of kernel-doc for the core of IIO.
* Document the trigger name sysfs attribute in the ABI docs.
* Minor typos in the ABI docs related to power down modes.
2015-08-12 12:43:41 -07:00
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
Andrea Galbusera
f686a36b4b iio: adc: mcp320x: Add support for mcp3301
This adds support for Microchip's 13 bit 1 channel AD converter MCP3301

Signed-off-by: Andrea Galbusera <gizero@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-07-20 18:41:16 +01:00
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.
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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
Hartmut Knaack
12ebb05246 iio:adc:Kconfig: rework help descriptions
Rework the help text of several ADCs to make sure that:
  - the module name is mentioned, if the driver can be built as a module
  - "If unsure, say N" messages are dropped
  - right indentation is maintained

Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-06-28 18:23:22 +01:00
Hartmut Knaack
b2b3c3dc6a iio:adc:cc10001_adc: fix Kconfig dependency
The Cosmic Circuits 10001 ADC driver depends on HAS_IOMEM, HAVE_CLK and
REGULATOR together, not just any of these.

Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-06-21 16:15:20 +01:00
Urs Fässler
2a67dfba7f iio:adc128s052: add support for adc122s021
Signed-off-by: Urs Fässler <urs.fassler@bytesatwork.ch>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-05-23 12:42:43 +01:00
Antoine Tenart
70f1937911 iio: adc: add support for Berlin
This patch adds the support of the Berlin ADC, available on Berlin SoCs.
This ADC has 8 channels available, with one connected to a temperature
sensor.

The particularity here, is that the temperature sensor connected to the
ADC has its own registers, and both the ADC and the temperature sensor
must be configured when using it.

Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-05-23 10:47:40 +01:00
Linus Torvalds
b79013b244 Staging driver patches for 4.1-rc1
Here's the big staging driver patchset for 4.1-rc1.
 
 There's a lot of patches here, the Outreachy application period happened
 during this development cycle, so that means that there was a lot of
 cleanup patches accepted.  Other than the normal coding style and sparse
 fixes here, there are some driver updates and work toward making some of
 the drivers into "mergable" shape (like the Unisys drivers.)
 
 All of these have been in linux-next for a while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging driver updates from Greg KH:
 "Here's the big staging driver patchset for 4.1-rc1.

  There's a lot of patches here, the Outreachy application period
  happened during this development cycle, so that means that there was a
  lot of cleanup patches accepted.  Other than the normal coding style
  and sparse fixes here, there are some driver updates and work toward
  making some of the drivers into "mergable" shape (like the Unisys
  drivers.)

  All of these have been in linux-next for a while"

* tag 'staging-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (1214 commits)
  staging: lustre: orthography & coding style
  staging: lustre: lnet: lnet: fix error return code
  staging: lustre: fix sparse warning
  Revert "Staging: sm750fb: Fix C99 Comments"
  Staging: rtl8192u: use correct array for debug output
  staging: rtl8192e: Remove dead code
  staging: rtl8192e: Comment cleanup (style/format)
  staging: rtl8192e: Fix indentation in rtllib_rx_auth_resp()
  staging: rtl8192e: Decrease nesting of rtllib_rx_auth_resp()
  staging: rtl8192e: Divide rtllib_rx_auth()
  staging: rtl8192e: Fix PRINTK_WITHOUT_KERN_LEVEL warnings
  staging: rtl8192e: Fix DO_WHILE_MACRO_WITH_TRAILING_SEMICOLON warning
  staging: rtl8192e: Fix BRACES warning
  staging: rtl8192e: Fix LINE_CONTINUATIONS warning
  staging: rtl8192e: Fix UNNECESSARY_PARENTHESES warnings
  staging: rtl8192e: remove unused EXPORT_SYMBOL_RSL macro
  staging: rtl8192e: Fix RETURN_VOID warnings
  staging: rtl8192e: Fix UNNECESSARY_ELSE warning
  staging: rtl8723au: Remove unneeded comments
  staging: rtl8723au: Use __func__ in trace logs
  ...
2015-04-13 17:37:33 -07:00
Linus Torvalds
a21c1ea656 power supply and reset changes for the v4.1 series
* new API for safe access of power supply function attrs
  * devres support for power supply (un)registration
  * new drivers / chips
   - generic syscon based poweroff driver
   - iio & charger driver for da9150
   - fuel gauge driver for axp288
   - bq27x00: add support for bq27510
   - bq2415x: add support for bq24157s
  * twl4030-madc-battery: convert to iio consumer
  * misc fixes
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Merge tag 'for-v4.1' of git://git.infradead.org/battery-2.6

Pull power supply and reset changes from Sebastian Reichel:

 - new API for safe access of power supply function attrs

 - devres support for power supply (un)registration

 - new drivers / chips:
     - generic syscon based poweroff driver
     - iio & charger driver for da9150
     - fuel gauge driver for axp288
     - bq27x00: add support for bq27510
     - bq2415x: add support for bq24157s

 - twl4030-madc-battery: convert to iio consumer

 - misc fixes

* tag 'for-v4.1' of git://git.infradead.org/battery-2.6: (66 commits)
  power: twl4030_madc_battery: Add missing MODULE_ALIAS
  power: twl4030-madc-battery: Convert to iio consumer.
  dt: power: Add docs for generic SYSCON poweroff driver.
  power: reset: Add generic SYSCON register mapped poweroff.
  power: max17042_battery: add missed blank
  power: max17042_battery: Use reg type instead of chip type
  power/reset: at91: big endian fixes for atsama5d3x
  power_supply: charger-manager: Fix dereferencing of ERR_PTR
  HID: input: Fix NULL pointer dereference when power_supply_register fails
  power: constify of_device_id array
  power/reset/rmobile-reset.c: Fix !HAS_IOMEM build
  power_supply: 88pm860x_charger: Fix possible NULL pointer dereference and use of initialized variable
  arm: mach-pxa: Decrement the power supply's device reference counter
  mfd: ab8500: Decrement the power supply's device reference counter
  power_supply: bq2415x_charger: Decrement the power supply's device reference counter
  power_supply: 88pm860x_charger: Decrement the power supply's device reference counter
  x86/olpc/xo15/sci: Use newly added power_supply_put API
  x86/olpc/xo1/sci: Use newly added power_supply_put API
  power_supply: charger-manager: Decrement the power supply's device reference counter
  power_supply: Increment power supply use counter when obtaining references
  ...
2015-04-13 15:21:34 -07:00
Greg Kroah-Hartman
c610f7f772 Merge 4.0-rc7 into staging-next
We want those fixes (iio primarily) into the -next branch to help with
merge and testing issues.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-07 11:03:02 +02:00
Richard Weinberger
bbc45f3ab7 iio/adc/cc10001_adc.c: Fix !HAS_IOMEM build
Fixes:
drivers/built-in.o: In function `cc10001_adc_probe':
cc10001_adc.c:(.text+0x412e92): undefined reference to `devm_ioremap_resource'

Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-03-28 11:59:31 +00:00
Søren Andersen
ab280024e3 iio: adc: Kconfig mcp320x change description Add more ADCs
Bring the Kconfig entry up to date with parts supported by
the driver.

Signed-off-by: Soeren Andersen <san@rosetechnology.dk>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-03-12 10:16:12 +00:00
Adam Thomson
ed5f07b3d3 iio: Add support for DA9150 GPADC
This patch adds support for DA9150 Charger & Fuel-Gauge IC GPADC.

Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Reviewed-by: Hartmut Knaack <knaack.h@gmx.de>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-02-25 21:05:26 +01:00
Phani Movva
1664f6a5b0 iio: adc: Cosmic Circuits 10001 ADC driver
This commit adds support for Cosmic Circuits 10001 10-bit ADC device.

Reviewed-by: Andrew Bresticker <abrestic@chromium.org>
Signed-off-by: Phani Movva <Phani.Movva@imgtec.com>
Signed-off-by: Naidu Tellapati <Naidu.Tellapati@imgtec.com>
[ezequiel: code style cleaning]
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@imgtec.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-01-29 18:09:40 +00:00
Stanimir Varbanov
0917de94c0 iio: vadc: Qualcomm SPMI PMIC voltage ADC driver
The voltage ADC is peripheral of Qualcomm SPMI PMIC chips. It has
15bits resolution and register space inside PMIC accessible across
SPMI bus.

The vadc driver registers itself through IIO interface.

Signed-off-by: Stanimir Varbanov <svarbanov@mm-sol.com>
Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-01-28 18:42:08 +00:00
Linus Torvalds
dab363f938 Staging patches for 3.19-rc1
Here's the big staging tree pull request for 3.19-rc1.
 
 We continued to delete more lines than were added, always a good thing,
 but not at a huge rate this release, only about 70k lines removed
 overall mostly from removing the horrid bcm driver.
 
 Lots of normal staging driver cleanups and fixes all over the place,
 well over a thousand of them, the shortlog shows all the horrid details.
 
 The "contentious" thing here is the movement of the Android binder code
 out of staging into the "real" part of the kernel.  This is code that
 has been stable for a few years now and is working as-is in the tens of
 millions of devices with no issues.  Yes, the code is horrid, and the
 userspace api leaves a lot to be desired, but it's not going to change
 due to legacy issues that we have no control over.  Because so many
 devices and companies rely on this, and the code is stable, might as
 well promote it out of staging.
 
 This was all discussed at the Linux Plumbers conference, and everyone
 participating agreed that this was the best way forward.
 
 There is work happening to replace the binder code with something new
 that is happening right now, but I don't expect to see the results of
 that work for another year at the earliest.  If that ever happens, and
 Android switches over to it, I'll gladly remove this version.
 
 As for maintainers, I'll be glad to maintain this code, I've been doing
 it for the past few years with no problems.  I'll send a MAINTAINERS
 entry for it before 3.19-final is out, still need to talk to the Google
 developers about if they are willing to help with it or not, last I
 checked they were, which was good.
 
 All of these patches have been in linux-next for a while with no
 reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging driver updates from Greg KH:
 "Here's the big staging tree pull request for 3.19-rc1.

  We continued to delete more lines than were added, always a good
  thing, but not at a huge rate this release, only about 70k lines
  removed overall mostly from removing the horrid bcm driver.

  Lots of normal staging driver cleanups and fixes all over the place,
  well over a thousand of them, the shortlog shows all the horrid
  details.

  The "contentious" thing here is the movement of the Android binder
  code out of staging into the "real" part of the kernel.  This is code
  that has been stable for a few years now and is working as-is in the
  tens of millions of devices with no issues.  Yes, the code is horrid,
  and the userspace api leaves a lot to be desired, but it's not going
  to change due to legacy issues that we have no control over.  Because
  so many devices and companies rely on this, and the code is stable,
  might as well promote it out of staging.

  This was all discussed at the Linux Plumbers conference, and everyone
  participating agreed that this was the best way forward.

  There is work happening to replace the binder code with something new
  that is happening right now, but I don't expect to see the results of
  that work for another year at the earliest.  If that ever happens, and
  Android switches over to it, I'll gladly remove this version.

  As for maintainers, I'll be glad to maintain this code, I've been
  doing it for the past few years with no problems.  I'll send a
  MAINTAINERS entry for it before 3.19-final is out, still need to talk
  to the Google developers about if they are willing to help with it or
  not, last I checked they were, which was good.

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

* tag 'staging-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (1382 commits)
  Staging: slicoss: Fix long line issues in slicoss.c
  staging: rtl8712: remove unnecessary else after return
  staging: comedi: change some printk calls to pr_err
  staging: rtl8723au: hal: Removed the extra semicolon
  lustre: Deletion of unnecessary checks before three function calls
  staging: lustre: fix sparse warnings: static function declaration
  staging: lustre: fixed sparse warnings related to static declarations
  staging: unisys: remove duplicate header
  staging: unisys: remove unneeded structure
  staging: ft1000 : replace __attribute ((__packed__) with __packed
  drivers: staging: rtl8192e: Include "asm/unaligned.h" instead of "access_ok.h" in "rtl819x_BAProc.c"
  Drivers:staging:rtl8192e: Fixed checkpatch warning
  Drivers:staging:clocking-wizard: Added a newline
  staging: clocking-wizard: check for a valid clk_name pointer
  staging: rtl8723au: Hal_InitPGData() avoid unnecessary typecasts
  staging: rtl8723au: _DisableAnalog(): Avoid zero-init variables unnecessarily
  staging: rtl8723au: Remove unnecessary wrapper _ResetDigitalProcedure1()
  staging: rtl8723au: _ResetDigitalProcedure1_92C() reduce code obfuscation
  staging: rtl8723au: Remove unnecessary wrapper _DisableRFAFEAndResetBB()
  staging: rtl8723au: _DisableRFAFEAndResetBB8192C(): Reduce code obfuscation
  ...
2014-12-15 18:06:13 -08:00
Lee Jones
a9e2e4733c Immutable branch between MFD, Regulator and Clk, due for v3.19
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Merge branches 'ib-mfd-gpio-i2c-3.19', 'ib-mfd-iio-3.19' and 'ib-mfd-regulator-v3.19', tag 'ib-mfd-regulator-clk-v3.19' into ibs-for-mfd-merged

Immutable branch between MFD, Regulator and Clk, due for v3.19
2014-11-25 16:18:03 +00:00
Ivan T. Ivanov
ce0694841e iio: iadc: Qualcomm SPMI PMIC current ADC driver
The current ADC is peripheral of Qualcomm SPMI PMIC chips. It has
16 bits resolution and register space inside PMIC accessible across
SPMI bus.

The driver registers itself through IIO interface.

Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-10-25 21:03:22 +01:00
Jacob Pan
de89bd7f21 iio: adc: Add support for axp288 adc
Platform driver for X-Powers AXP288 ADC, which is a sub-device of the
customized AXP288 PMIC for Intel Baytrail-CR platforms. GPADC device
enumerates as one of the MFD cell devices. It uses IIO infrastructure
to communicate with userspace and consumer drivers.

Usages of ADC channels include battery charging and thermal sensors.

Based on initial work by:
Ramakrishna Pallala <ramakrishna.pallala@intel.com>

Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-10-07 09:30:08 +01:00
Chanwoo Choi
145b0a5d18 iio: adc: exynos_adc: Add support for s3c24xx ADC
This patch add support for s3c2410/s3c2416/s3c2440/s3c2443 ADC. The s3c24xx
is alomost same as ADCv1. But, There are a little difference as following:
- ADCMUX register address
- ADCDAT mask (10 bit or 12 bit ADC resolution according to SoC version)
- s3c24xx/s3c64xx has not included ADC_PHY enable register

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-08-07 17:48:44 +01:00
Heiko Stübner
44d6f2ef94 iio: adc: add driver for Rockchip saradc
The ADC is a 3-channel signal-ended 10-bit Successive Approximation
Register (SAR) A/D Converter. It uses the supply and ground as its reference
and converts the analog input signal into 10-bit binary digital codes.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-08-07 15:13:02 +01:00
Angelo Compagnucci
913b864686 iio: adc: Add TI ADC128S052
This patch adds support for ADC128S052 from TI.

Signed-off-by: Angelo Compagnucci <angelo.compagnucci@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-08-07 14:43:25 +01:00
Lars-Peter Clausen
3b1cae7c2c staging:iio:ad7291: Move out of staging
The ad7291 driver is in a reasonable shape. It does not use non-standard API/ABI
and there are no major style issues with the driver. So this patch moves it out
of staging.

There is one small warning from checkpatch which is also fixed in this patch.
The patch also sorts the #include directives in alphabetical order.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-07-08 21:17:30 +01:00
Greg Kroah-Hartman
3dc50c1af3 Second round of new drivers and cleanups for IIO in the 3.17 cycle.
New drivers
 * mcp4902, mcp4912 and mcp4922 SPI DAC driver.
 * max1027, max1029 and max1031 SPI ADC driver.
 
 Cleanups
 * cm32181 - use devm APIs to simplify error paths.
 * ak8975 - use devm APIs to simplify error paths.
 * ad9850 - drop some unused defines and an unnecessary goto.
 * hmc5843 - add missing devices to the device id table and the documentation.
 * ad9832 - small formatting cleanups.
 * sca3000 - hide direct use of the stufftoread element by adding a
     data_available function.  This is a precursor for the addition of buffer
     watermarks to the subsystem but stands as a good cleanup on its own.
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Merge tag 'iio-for-3.17b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

Second round of new drivers and cleanups for IIO in the 3.17 cycle.

New drivers
* mcp4902, mcp4912 and mcp4922 SPI DAC driver.
* max1027, max1029 and max1031 SPI ADC driver.

Cleanups
* cm32181 - use devm APIs to simplify error paths.
* ak8975 - use devm APIs to simplify error paths.
* ad9850 - drop some unused defines and an unnecessary goto.
* hmc5843 - add missing devices to the device id table and the documentation.
* ad9832 - small formatting cleanups.
* sca3000 - hide direct use of the stufftoread element by adding a
    data_available function.  This is a precursor for the addition of buffer
    watermarks to the subsystem but stands as a good cleanup on its own.
2014-06-29 09:49:28 -07:00
Philippe Reynes
fc167f6248 iio: add support of the max1027
This driver add partial support of the
maxim 1027/1029/1031. Differential mode is not
supported.

It was tested on armadeus apf27 board.

Signed-off-by: Philippe Reynes <tremyfr@yahoo.fr>
Reviewed-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-06-28 09:54:14 +01:00
Greg Kroah-Hartman
588079342e Third round of new stuff for IIO in the 3.16 cycle.
This (rather late) set consists only of fixes to patches earlier in the
 cycle or minor fixes for other problems (such as randconfig build issues
 picked up by Arnd).  I've included the general minor fixes here as it is
 very late in the current cycle and they can all wait for the merge window.
 
 * Recent change to hid-sensors introduced a possible infinite loop due to a
   typo. In the same series, a report interval unit read was added but in the
   case where the hardware doesn't support it a value of 0 would lead to some
   nasty issues.  The patch sets it to the specified default of msecs.
 * Anon inodes were used by IIO without being explicitly selected.  This has
   been true for a long time so it clearly only effects rather unusual
   configurations (rand configs)
 * at91 requires the input subsytem but this wasn't explicity in the Kconfig.
 * A couple of parts supported by the max1363 driver were using the wrong
   iio_chan_spec arrays and hence would missreport their bit depths.  This has
   been there a long time and was never right so isn't a regression.
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Merge tag 'iio-for-3.16c' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

Third round of new stuff for IIO in the 3.16 cycle.

This (rather late) set consists only of fixes to patches earlier in the
cycle or minor fixes for other problems (such as randconfig build issues
picked up by Arnd).  I've included the general minor fixes here as it is
very late in the current cycle and they can all wait for the merge window.

* Recent change to hid-sensors introduced a possible infinite loop due to a
  typo. In the same series, a report interval unit read was added but in the
  case where the hardware doesn't support it a value of 0 would lead to some
  nasty issues.  The patch sets it to the specified default of msecs.
* Anon inodes were used by IIO without being explicitly selected.  This has
  been true for a long time so it clearly only effects rather unusual
  configurations (rand configs)
* at91 requires the input subsytem but this wasn't explicity in the Kconfig.
* A couple of parts supported by the max1363 driver were using the wrong
  iio_chan_spec arrays and hence would missreport their bit depths.  This has
  been there a long time and was never right so isn't a regression.
2014-05-25 10:56:30 -07:00
Greg Kroah-Hartman
69c1f05379 Merge 3.15-rc6 into staging-next.
This resolves the conflicts in the files:
	drivers/iio/adc/Kconfig
	drivers/staging/rtl8723au/os_dep/usb_ops_linux.c

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-22 23:27:17 +09:00
Arnd Bergmann
758ee467d3 iio:adc: at91 requires the input subsystem
Building the at91 adc driver with CONFIG_INPUT disabled results in this
build error:

ERROR: "input_event" [drivers/iio/adc/at91_adc.ko] undefined!
ERROR: "input_unregister_device" [drivers/iio/adc/at91_adc.ko] undefined!
ERROR: "input_free_device" [drivers/iio/adc/at91_adc.ko] undefined!
ERROR: "input_register_device" [drivers/iio/adc/at91_adc.ko] undefined!
ERROR: "input_set_abs_params" [drivers/iio/adc/at91_adc.ko] undefined!
ERROR: "input_allocate_device" [drivers/iio/adc/at91_adc.ko] undefined!

To make sure we can build random configurations, this adds a Kconfig
dependency on CONFIG_INPUT, as we do for other similar drivers.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: linux-iio@vger.kernel.org
Cc: Josh Wu <josh.wu@atmel.com>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-05-10 11:42:09 +01:00
Greg Kroah-Hartman
d5cef008e9 First round of IIO new driver, functionality and cleanups for the 3.16 cycle.
New device support
 * AS3935 Lightning Sensor
 * MCP3426/7/8 support added to the existing MCP3422 ADC driver
 * AK8963 support in the AK8975 driver
 * MPU6500 support in the MPU6050 driver (the functionality that is different
   is mostly not supported yet in either part).
 
 Staging Graduations
 * AD799x ADC
 
 New functionality
 * ACPI enumeration for the ak8975 driver
 
 Cleanup / tweaks
 * Use snprintf as a matter of good practice in a few additional places.
 * Document *_mean_raw attributes.  These have been there a while, but were
   undocumented.
 * Add an in kernel interface to get the mean values.
 * Bug in the length of the event info mask that by coincidence wasn't yet
   actually causing any problems.
 * itg3000 drop an unreachable return statement.
 * spear_adc cleanups (heading for a staging graduation but a few more
   issues showed up in the review of these patches).
 * Exynos ADC dependencies changed so it is only built when Exynos is present
   or COMPILE_TEST and OF are set.
 * tsl2583 cleanups.
 * Some cut and paste typos in the comments of various drivers still in staging.
 * Couple of minor improvements to the ST sensor drivers.
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Merge tag 'iio-for-3.16a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

First round of IIO new driver, functionality and cleanups for the 3.16 cycle.

New device support
* AS3935 Lightning Sensor
* MCP3426/7/8 support added to the existing MCP3422 ADC driver
* AK8963 support in the AK8975 driver
* MPU6500 support in the MPU6050 driver (the functionality that is different
  is mostly not supported yet in either part).

Staging Graduations
* AD799x ADC

New functionality
* ACPI enumeration for the ak8975 driver

Cleanup / tweaks
* Use snprintf as a matter of good practice in a few additional places.
* Document *_mean_raw attributes.  These have been there a while, but were
  undocumented.
* Add an in kernel interface to get the mean values.
* Bug in the length of the event info mask that by coincidence wasn't yet
  actually causing any problems.
* itg3000 drop an unreachable return statement.
* spear_adc cleanups (heading for a staging graduation but a few more
  issues showed up in the review of these patches).
* Exynos ADC dependencies changed so it is only built when Exynos is present
  or COMPILE_TEST and OF are set.
* tsl2583 cleanups.
* Some cut and paste typos in the comments of various drivers still in staging.
* Couple of minor improvements to the ST sensor drivers.
2014-04-26 08:12:25 -07:00
Doug Anderson
bbc28134e9 iio: adc: Nothing in ADC should be a bool CONFIG
The whole IIO subsystem can be built as modules.  If you make it a
module then stuff marked as "Y" in the adc directory simply won't be
linked in properly.

The two configs that were wrong were EXYNOS_ADC and LP8788_ADC.  I
know for a fact that EXYNOS_ADC will work as a module. I assume
LP8788_ADC will also be fine.

Signed-off-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-04-26 11:22:16 +01:00
Jean Delvare
9ef080ec0c iio: adc: Fix exynos_adc dependencies
EXYNOS_ADC shouldn't only depend on OF. It is useless on architectures
other than Exynos so it should depend on ARCH_EXYNOS (which implies
OF.)

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Jonathan Cameron <jic23@kernel.org>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-04-11 21:48:22 +01:00
Linus Torvalds
e5744abb2f == Changes to existing drivers ==
- Use of managed resources - omap, twl4030, ti_am335x_tscadc
    - Advanced error handling - omap
    - Rework clk management - omap
    - Device Tree (re-)work - tc3589x, pm8921, da9055, sec
    - IRC management overhaul and !BROKEN - pm8921
    - Convert to regmap - ssbi, pm8921
    - Use simple power-management ops - ucb1x00
    - Include file clean-up - adp5520, cs5535, janz, lpc_ich,
       - lpc_sch, max14577, mcp-sa11x0, pcf50633-adc, rc5t583,
       	rdc321x-southbridge, retu, smsc-ece1099, ti-ssp, ti_am335x_tscadc,
 	tps65912, vexpress-config, wm8350, ywm8350
    - Various bug fixes across the subsystem
       - NULL/invalid pointer dereference prevention
       - Resource leak mitigation,
       - Variable used initialised
       - Staticise various containers
       - Enforce return value checks
 
  == New drivers/supported devices ==
    - Add support for s2mps14 and s2mpa01 to sec
    - Add support for da9063 (v5) to da9063
    - Add support for atom-c2000 to gpio-ich
    - Add support for come-{mbt10,cbt6,chl6} to kempld
    - Add support for da9053 to da9052
    - Add support for itco-wdt (v3) and baytrail to lpc_ich
    - Add new drivers for tps65218, rtsx_usb, bcm590xx
 
  == (Re-)moved drivers ==
    - twl4030 ==> drivers/iio
    - ti-ssp  ==> /dev/null
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Merge tag 'mfd-for-linus-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull MFD updates from Lee Jones:
 "Changes to existing drivers:
   - Use of managed resources - omap, twl4030, ti_am335x_tscadc
   - Advanced error handling - omap
   - Rework clk management - omap
   - Device Tree (re-)work - tc3589x, pm8921, da9055, sec
   - IRC management overhaul and !BROKEN - pm8921
   - Convert to regmap - ssbi, pm8921
   - Use simple power-management ops - ucb1x00
   - Include file clean-up - adp5520, cs5535, janz, lpc_ich,
      - lpc_sch, max14577, mcp-sa11x0, pcf50633-adc, rc5t583,
      	rdc321x-southbridge, retu, smsc-ece1099, ti-ssp, ti_am335x_tscadc,
	tps65912, vexpress-config, wm8350, ywm8350
   - Various bug fixes across the subsystem
      - NULL/invalid pointer dereference prevention
      - Resource leak mitigation,
      - Variable used initialised
      - Staticise various containers
      - Enforce return value checks

  New drivers/supported devices:
   - Add support for s2mps14 and s2mpa01 to sec
   - Add support for da9063 (v5) to da9063
   - Add support for atom-c2000 to gpio-ich
   - Add support for come-{mbt10,cbt6,chl6} to kempld
   - Add support for da9053 to da9052
   - Add support for itco-wdt (v3) and baytrail to lpc_ich
   - Add new drivers for tps65218, rtsx_usb, bcm590xx

  (Re-)moved drivers:
   - twl4030 ==> drivers/iio
   - ti-ssp  ==> /dev/null"

* tag 'mfd-for-linus-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (103 commits)
  mfd: wm5110: Correct default for HEADPHONE_DETECT_1
  mfd: arizona: Correct small errors in the DT binding documentation
  mfd: arizona: Mark DSP clocking register as volatile
  mfd: devicetree: bindings: Add pm8xxx RTC description
  mfd: kempld-core: Fix potential hang-up during boot
  mfd: sec-core: Fix uninitialized 'regmap_rtc' on S2MPA01
  mfd: tps65910: Fix regmap_irq_chip_data leak on mfd_add_devices fail
  mfd: tps65910: Fix possible invalid pointer dereference on regmap_add_irq_chip fail
  mfd: sec-core: Fix I2C dummy device resource leak on probe failure
  mfd: sec-core: Add of_compatible strings for clock MFD cells
  mfd: Remove obsolete ti-ssp driver
  Documentation: mfd: s2mps11: Describe S5M8767 and S2MPS14 clocks
  mfd: bcm590xx: Fix type argument for module device table
  mfd: lpc_ich: Add support for Intel Bay Trail SoC
  mfd: lpc_ich: Add support for NM10 GPIO
  mfd: lpc_ich: Change Avoton to iTCO v3
  watchdog: iTCO_wdt: Add support for v3 silicon
  mfd: lpc_ich: Add support for iTCO v3
  mfd: lpc_ich: Remove lpc_ich_cfg struct use
  mfd: lpc_ich: Only configure watchdog or GPIO when present
  ...
2014-04-07 10:24:18 -07:00
Linus Torvalds
c12e69c6aa Staging driver pull request for 3.15-rc1
Here's the huge drivers/staging/ update for 3.15-rc1.
 
 Loads of cleanup fixes, a few drivers removed, and some new ones added.
 
 All have been in linux-next for a while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging driver updates from Greg KH:
 "Here's the huge drivers/staging/ update for 3.15-rc1.

  Loads of cleanup fixes, a few drivers removed, and some new ones
  added.

  All have been in linux-next for a while"

* tag 'staging-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (1375 commits)
  staging: xillybus: XILLYBUS_PCIE depends on PCI_MSI
  staging: xillybus: Added "select CRC32" for XILLYBUS in Kconfig
  staging: comedi: poc: remove obsolete driver
  staging: unisys: replace kzalloc/kfree with UISMALLOC/UISFREE
  staging: octeon-usb: prevent memory corruption
  staging: usbip: fix line over 80 characters
  staging: usbip: fix quoted string split across lines
  Staging: unisys: Remove RETINT macro
  Staging: unisys: Remove FAIL macro
  Staging: unisys: Remove RETVOID macro
  Staging: unisys: Remove RETPTR macro
  Staging: unisys: Remove RETBOOL macro
  Staging: unisys: Remove FAIL_WPOSTCODE_1 macro
  Staging: unisys: Cleanup macros to get rid of goto statements
  Staging: unisys: include: Remove unused macros from timskmod.h
  staging: dgap: fix the rest of the checkpatch warnings in dgap.c
  Staging: bcm: Remove unnecessary parentheses
  staging: wlags49_h2: Delete unnecessary braces
  staging: wlags49_h2: Do not use assignment in if condition
  staging: wlags49_h2: Enclose macro in a do-while loop
  ...
2014-04-01 16:45:00 -07:00
Sebastian Reichel
b2931b98ce mfd: twl4030-madc: Move driver to drivers/iio/adc
This is a driver for an A/D converter, which belongs into
drivers/iio/adc.

Signed-off-by: Sebastian Reichel <sre@debian.org>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-03-18 08:16:20 +00:00
Angelo Compagnucci
2816ac64ac Add support for Microchip Technology's MCP3426/7/8 ADC
This patch extends previous mcp3422 driver to support
missing members of the family, mcp3426/7/8.

Signed-off-by: Angelo Compagnucci <angelo.compagnucci@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-03-16 18:00:34 +00:00
Lars-Peter Clausen
bd75afaa31 staging:iio: Move ad799x driver out of staging
The driver is now at a reasonable quality level. Move it out of staging.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-03-16 18:00:34 +00:00
Lars-Peter Clausen
bdc8cda1d0 iio:adc: Add Xilinx XADC driver
The Xilinx XADC is a ADC that can be found in the series 7 FPGAs from Xilinx.
The XADC has a DRP interface for communication. Currently two different
frontends for the DRP interface exist. One that is only available on the ZYNQ
family as a hardmacro in the SoC portion of the ZYNQ. The other one is available
on all series 7 platforms and is a softmacro with a AXI interface. This driver
supports both interfaces and internally has a small abstraction layer that hides
the specifics of these interfaces from the main driver logic.

The ADC has a couple of internal channels which are used for voltage and
temperature monitoring of the FPGA as well as one primary and up to 16 channels
auxiliary channels for measuring external voltages. The external auxiliary
channels can either be directly connected each to one physical pin on the FPGA
or they can make use of an external multiplexer which is responsible for
multiplexing the external signals onto one pair of physical pins.

The voltage and temperature monitoring channels also have an event capability
which allows to generate a interrupt when their value falls below or raises
above a set threshold.

Buffered sampling mode is supported by the driver, but only for AXI-XADC since
the ZYNQ XADC interface does not have capabilities for supporting buffer mode
(no end-of-conversion interrupt). If buffered mode is supported the driver will
register two triggers. One "xadc-samplerate" trigger which will generate samples
with the configured samplerate. And one "xadc-convst" trigger which will
generate one sample each time the CONVST (conversion start) signal is asserted.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-03-01 21:04:29 +00:00
Johannes Thumshirn
74aeac4da6 iio: adc: Add MEN 16z188 ADC driver
Add support for MEN 16z188 ADC IP Core on MCB FPGAs.

Signed-off-by: Johannes Thumshirn <johannes.thumshirn@men.de>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-28 15:47:57 -08:00
Fugang Duan
a775427632 iio:adc:imx: add Freescale Vybrid vf610 adc driver
Add Freescale Vybrid vf610 adc driver. The driver only support
ADC software trigger.

VF610 ADC device documentation is available at below reference manual
(chapter 37):
http://cache.freescale.com/files/32bit/doc/ref_manual/VYBRIDRM.pdf?
fpsp=1&WT_TYPE=Reference%20Manuals&WT_VENDOR=FREESCALE&WT_FILE_FORMAT
=pdf&WT_ASSET=Documentation

CC: Shawn Guo <shawn.guo@linaro.org>
CC: Jonathan Cameron <jic23@kernel.org>
CC: Mark Rutland <mark.rutland@arm.com>
CC: Otavio Salvador <otavio@ossystems.com.br>
CC: Peter Meerwald <pmeerw@pmeerw.net>
CC: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Fugang Duan <B38611@freescale.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-02-15 10:29:11 +00:00
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
Zubair Lutfullah
ca9a563805 iio: ti_am335x_adc: Add continuous sampling support
Previously the driver had only one-shot reading functionality.
This patch adds continuous sampling support to the driver.

Continuous sampling starts when buffer is enabled.
HW IRQ wakes worker thread that pushes samples to userspace.
Sampling stops when buffer is disabled by userspace.

Patil Rachna (TI) laid the ground work for ADC HW register access.
Russ Dill (TI) fixed bugs in the driver relevant to FIFOs and IRQs.

I fixed channel scanning so multiple ADC channels can be read
simultaneously and pushed to userspace.
Restructured the driver to fit IIO ABI.
And added INDIO_BUFFER_HARDWARE mode.

Signed-off-by: Zubair Lutfullah <zubair.lutfullah@gmail.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Russ Dill <Russ.Dill@ti.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-09-21 19:23:47 +01:00
Angelo Compagnucci
07914c84ba iio: adc: Add driver for Microchip MCP3422/3/4 high resolution ADC
Sysfs access to all channels.

Signed-off-by: Angelo Compagnucci <angelo.compagnucci@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-09-07 22:17:44 +01:00
Oleksandr Kozaruk
1696f36482 iio: twl6030-gpadc: TWL6030, TWL6032 GPADC driver
The GPADC is general purpose ADC found on TWL6030, and TWL6032 PMIC,
known also as Phoenix and PhoenixLite.

The TWL6030 and TWL6032 have GPADC with 17 and 19 channels
respectively. Some channels have current source and are used for
measuring voltage drop on resistive load for detecting battery ID
resistance, or measuring voltage drop on NTC resistors for external
temperature measurements. Some channels measure voltage, (i.e. battery
voltage), and have voltage dividers, thus, capable to scale voltage.
Some channels are dedicated for measuring die temperature.

Some channels are calibrated in 2 points, having offsets from ideal
values kept in trim registers. This is used to correct measurements.

The differences between GPADC in TWL6030 and TWL6032:
- 10 bit vs 12 bit ADC;
- 17 vs 19 channels;
- channels have different purpose(i.e. battery voltage
  channel 8 vs channel 18);
- trim values are interpreted differently.

Based on the driver patched from Balaji TK, Graeme Gregory, Ambresh K,
Girish S Ghongdemath.

Signed-off-by: Balaji T K <balajitk@ti.com>
Signed-off-by: Graeme Gregory <gg@slimlogic.co.uk>
Signed-off-by: Oleksandr Kozaruk <oleksandr.kozaruk@ti.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-08-17 15:50:57 +01:00
Sachin Kamat
be85697bfc iio: adc: Update ti_am335x_adc Kconfig entry
Make the string more readable to distinguish it from other TI ADCs.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-08-03 18:41:19 +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
Alexandre Belloni
8b20be87e1 iio: Add Nuvoton NAU7802 ADC driver
The Nuvoton NAU7802 ADC is a 24-bit 2-channels I2C ADC, with adjustable
gain and sampling rates.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-08-03 18:40:32 +01:00
Oskar Andero
f5ce4a7a92 iio: adc: add driver for MCP3204/08 12-bit ADC
This adds support for Microchip's 12 bit AD converters MCP3204 and
MCP3208. These chips communicates over SPI and supports single-ended
and pseudo-differential configurations.

Signed-off-by: Oskar Andero <oskar.andero@gmail.com>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-05-22 22:16:47 +01:00
Lars-Peter Clausen
f2f7a44970 iio:adc:ad7923: Add support for the ad7904/ad7914/ad7924
The ad7924 is software compatible with the ad7923. The ad7904 and ad7914 are the
8 and 10 bit version of the ad7924.

While we are at it also drop the "with temperature sensor" from the Kconfig
entry, since the chips do not have a temperature sensor.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Patrick Vasseur <patrick.vasseur@c-s.fr>
Cc: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-03-17 20:16:41 +00:00
Naveen Krishna Chatradhi
039a9dce0d iio: adc: Kconfig: exynos_adc depends on CONFIG_OF
As the exynos_adc driver only supports device tree registration.
Making driver depend on CONFIG_OF solves possible errors during probe.

Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-03-17 20:11:15 +00:00
Naveen Krishna Chatradhi
10f5b14811 iio: adc: add exynos adc driver under iio framwork
This patch adds New driver to support:
1. Supports ADC IF found on EXYNOS4412/EXYNOS5250
   and future SoCs from Samsung
2. Add ADC driver under iio/adc framework
3. Also adds the Documentation for device tree bindings

Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-03-16 10:18:15 +00:00
Christophe Leroy
0eac259db2 IIO ADC support for AD7923
This patch adds support for Analog Devices AD7923 ADC in the IIO Subsystem.

Signed-off-by: Patrick Vasseur <patrick.vasseur@c-s.fr>
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-03-16 10:18:05 +00:00
Peter Meerwald
8a9f645fc1 iio: fix Kconfig for max1363
ERROR: "iio_triggered_buffer_setup" [drivers/iio/adc/max1363.ko] undefined!
ERROR: "iio_triggered_buffer_cleanup" [drivers/iio/adc/max1363.ko] undefined!

add select IIO_TRIGGERED_BUFFER

IIO_TRIGGERED_BUFFER in turn selects IIO_TRIGGER and IIO_KFIFO_BUF, so drop those
MAX1363_RING_BUFFER is not used anymore

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-01-26 10:07:45 +00:00
Linus Torvalds
2dfea3803d This is the MFD patch set for the 3.8 merge window.
We have several new drivers, most of the time coming with their sub devices
 drivers:
 
 - Austria Microsystem's AS3711
 - Nano River's viperboard
 - TI's TPS80031, AM335x TS/ADC,
 - Realtek's MMC/memstick card reader
 - Nokia's retu
 
 We also got some notable cleanups and improvements:
 
 - tps6586x got converted to IRQ domains.
 - tps65910 and tps65090 moved to the regmap IRQ API.
 - STMPE is now Device Tree aware.
 - A general twl6040 and twl-core cleanup, with moves to the regmap I/O and IRQ
   APIs and a conversion to the recently added PWM framework.
 - sta2x11 gained regmap support.
 
 Then the rest is mostly tiny cleanups and fixes, among which we have Mark's
 wm5xxx and wm8xxx patchset.
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Merge tag 'mfd-3.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6

Pull MFS update from Samuel Ortiz:
 "This is the MFD patch set for the 3.8 merge window.

  We have several new drivers, most of the time coming with their sub
  devices drivers:

   - Austria Microsystem's AS3711
   - Nano River's viperboard
   - TI's TPS80031, AM335x TS/ADC,
   - Realtek's MMC/memstick card reader
   - Nokia's retu

  We also got some notable cleanups and improvements:

   - tps6586x got converted to IRQ domains.
   - tps65910 and tps65090 moved to the regmap IRQ API.
   - STMPE is now Device Tree aware.
   - A general twl6040 and twl-core cleanup, with moves to the regmap
     I/O and IRQ APIs and a conversion to the recently added PWM
     framework.
   - sta2x11 gained regmap support.

  Then the rest is mostly tiny cleanups and fixes, among which we have
  Mark's wm5xxx and wm8xxx patchset."

Far amount of annoying but largely trivial conflicts.  Many due to
__devinit/exit removal, others due to one or two of the new drivers also
having come in through another tree.

* tag 'mfd-3.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (119 commits)
  mfd: tps6507x: Convert to devm_kzalloc
  mfd: stmpe: Update DT support for stmpe driver
  mfd: wm5102: Add readback of DSP status 3 register
  mfd: arizona: Log if we fail to create the primary IRQ domain
  mfd: tps80031: MFD_TPS80031 needs to select REGMAP_IRQ
  mfd: tps80031: Add terminating entry for tps80031_id_table
  mfd: sta2x11: Fix potential NULL pointer dereference in __sta2x11_mfd_mask()
  mfd: wm5102: Add tuning for revision B
  mfd: arizona: Defer patch initialistation until after first device boot
  mfd: tps65910: Fix wrong ack_base register
  mfd: tps65910: Remove unused data
  mfd: stmpe: Get rid of irq_invert_polarity
  mfd: ab8500-core: Fix invalid free of devm_ allocated data
  mfd: wm5102: Mark DSP memory regions as volatile
  mfd: wm5102: Correct default for LDO1_CONTROL_2
  mfd: arizona: Register haptics devices
  mfd: wm8994: Make current device behaviour the default
  mfd: tps65090: MFD_TPS65090 needs to select REGMAP_IRQ
  mfd: Fix stmpe.c build when OF is not enabled
  mfd: jz4740-adc: Use devm_kzalloc
  ...
2012-12-16 18:55:20 -08:00
Thierry Reding
bc0a409c5f iio: adc: Add Texas Instruments ADC081C021/027 support
Add support for reading conversion results from the ADC and provide them
through a single IIO channel. A proper scaling factor is also exported
based on the reference voltage provided by a regulator.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-11-30 12:57:09 +00:00
Lars-Peter Clausen
f87f1a2375 staging:iio: Move ad7793 driver out of staging
The driver does not expose any custom API to userspace and none of the standard
static code checker tools report any issues, so move it out of staging.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-11-30 12:57:08 +00:00
Lars Poeschel
ffd8a6e7a7 iio: adc: Add viperboard adc driver
This adds the mfd cell to use the adc part of the Nano River Technologies
viperboard.

Signed-off-by: Lars Poeschel <poeschel@lemonage.de>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-20 12:21:13 +01:00
Lars-Peter Clausen
709ab36e95 staging:iio: Move the ad7298 driver out of staging
The driver does not expose any custom API to userspace and none of the standard
static code checker tools report any issues, so move it out of staging.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-11-19 22:22:15 +00:00
Jonathan Cameron
168c9d95a9 iio:adc:max1363 move from staging.
Now this driver is using kfifo we can move it out of staging.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-11-10 10:17:31 +00:00
Patil, Rachna
5e53a69b44 IIO : ADC: tiadc: Add support of TI's ADC driver
This patch adds support for TI's ADC driver.
This is a multifunctional device.
Analog input lines are provided on which
voltage measurements can be carried out.
You can have upto 8 input lines.

Signed-off-by: Patil, Rachna <rachna@ti.com>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-05 23:50:27 +01:00
Lars-Peter Clausen
4eb3ccf157 staging:iio: Move the ad7887 driver out of staging
The driver does not expose any custom API to userspace and none of the standard
static code checker tools report any issues, so move it out of staging.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-11-05 20:39:54 +00:00
Kim, Milo
f0347c36cc iio: adc: add new lp8788 adc driver
TI LP8788 PMU provides regulators, battery charger, ADC,
 RTC, backlight driver and current sinks.

 This patch enables the LP8788 ADC functions.

 The LP8788 ADC has several ADC input selection and supports 12bit resolution.
 Internal operation of getting ADC is access to registers of LP8788.
 The LP8788 ADC uses exported functions for accessing these registers.
 (exported by LP8788 MFD device driver)

 This driver supports IIO_CHAN_INFO_RAW and SCALE.
 So the IIO consumer can calculate the value with raw and scale.
 The unit of scale is micro.

 (ADC Input Selection)

 Voltage: battery voltage (MAX 5.0, 5.5 and 6.0V)
          charger input voltage
          four general ADC inputs
          coin cell voltage
 Current: battery charging current
 Temperature: IC temperature

 (The IIO map for the IIO consumer)

 The ADC input is configurable in the platform side.
 Even though this platform data is not defined,
 the default IIO map is created for supporting the power supply driver.
 The battery voltage and temperature are used inside this driver.

 (History)

 Patch v6.
 (a) Fix scale value for each ADC input selection
 Voltage and current type are mili unit and temperature is degree.
 To calculate the IC temperature,
 temp = raw * scaleint + (raw * scalepart)/ 1000000, scaleint is always 0.
      = raw * 0.061050, raw: 0 ~ 4095
 Then range of IC temperature(ADC result) is 0 ~ 250'C

 (b) Reorganization of the IIO channel Spec
 Remove address, scan_type and scan_index and rollback the datasheet name.
 The reason why 'address' field is unnecessary is no relation with each channel.
 Moreover, to get the raw ADC value, the address info is not only one register
 but also several registers.
 Therefore specific function(lp8788_get_adc_result) is called rather than
 using one 'address' field.

 (c) Fix coding style
 Remove duplicated checking routine while unregistering the IIO map.
 Fix code for space and parenthesis.

 Patch v5.
 Fix default consumer name as 'lp8788-charger'.
 Add mutex for ADC read operation.
 Reorganization on lp8788_adc_read_raw().

 Patch v4.
 Fix adc_raw function: support RAW and SCALE channel info.
 Change LP8788 ADC platform data - iio map.
 Enables the default IIO map.

 Patch v3.
 Fix wrong size of allocating iio private data.
 Fix coding styles.

 Patch v2.
 Support RAW and SCALE interface for IIO consumer.
 Clean up the iio channel spec macro.

Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-09-22 10:29:19 +01:00
Lars-Peter Clausen
c26cc89e8d iio:ad7476: Add support for ad7273/ad7274/ad7276/ad7277/ad7278
The ad7276/ad7277/ad7278 are similar to the ad7476/ad7477/ad7478 but have the
same number of leading zeros as the ad7940. The ad7273/ad7274 have a extra pin
for VREF where as for the ad7276/ad7277/ad7278 VREF is taken from VDD, but
otherwise they are compatible to the ad7276/ad7277.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-09-15 10:02:16 +01:00
Lars-Peter Clausen
4c337de870 iio:ad7476: Add ad7940 support
The AD7940 is a single channel 14 bit ADC similar to the ADCs already supported
by the ad7476 driver, but it does have a different shift factor.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-09-15 10:02:15 +01:00
Lars-Peter Clausen
ac5332b147 iio:ad7476: Add ad7910/ad7920 device table entries
The ad7910/ad7920 are software compatible to the ad7467/ad7466.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-09-15 10:02:15 +01:00
Lars-Peter Clausen
968f3d5ba0 iio: Move ad7476 driver out of staging
The ad7476 driver is a driver for simple single channel ADCs. The driver does
not export any experimental or custom ABI files nor do the static code check
tools report any issues, so move the driver out of staging.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-09-15 10:02:14 +01:00
Lars-Peter Clausen
7b123c85bb staging:iio:adc: Add AD7791 driver
This patch adds support for the Analog Devices AD7787, AD7788, AD7789, AD7790
and AD7791 Sigma Delta Analog-to-Digital converters.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-09-08 10:20:09 +01:00
Lars-Peter Clausen
af3008485e iio:adc: Add common code for ADI Sigma Delta devices
Most devices from the Analog Devices Sigma Delta family use a similar scheme for
communication with the device. This includes register access, as well as trigger
handling. But each device sub-family has different features and different
register layouts (some even have no registers at all) and thus it is impractical
to try to support all of the devices by the same driver. This patch adds a
common base library for Sigma Delta converter devices. It will be used by
individual drivers.

This code is mostly based on the three existing Sigma Delta drivers the AD7192,
AD7780 and AD7793, but has been improved for more robustness and flexibility.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-08-27 17:53:12 +01:00
Lars-Peter Clausen
8ec4cf5303 iio:adc: Add AD7265/AD7266 support
This patch adds support for the Analog Devices AD7265 and AD7266
Analog-to-Digital converters.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-06-30 10:15:07 +01:00
Lars-Peter Clausen
90032e4e9c iio:adc:at91: Use new triggered buffer setup helper
Use the new triggered buffer setup helper function to allocate and register
buffer and pollfunc.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-06-18 17:26:09 -07:00
Maxime Ripard
0e589d5fb3 ARM: AT91: IIO: Add AT91 ADC driver.
Add the ADC driver for Atmel's AT91SAM9G20-EK, AT91SAM9M10G45-EK
and AT91SAM9X5 family boards.

It has support for both software and hardware triggers.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-05-14 13:24:09 -07:00