Adds basic support for the LTC2485 ADC - a delta-sigma analog-to-digital
converter with an I2C interface that operates in single shot conversion
mode.
The driver supports an on board 5V reference and the power-on default
configuration which rejects both 50hz & 60hz line frequencies and
operates in 1x speed mode.
Signed-off-by: Alison Schofield <amsfield22@gmail.com>
Cc: Daniel Baluta <daniel.baluta@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Add Mediatek auxadc driver based on iio.
It will register a device in iio and support iio.
So thermal can read auxadc channel to sample data by iio device.
It is tested successfully on mt2701 platform.
Mt8173 and mt6577 platforms are not tested.
But the expectation is compatible.
Signed-off-by: Zhiyong Tao <zhiyong.tao@mediatek.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Add support for Texas Instruments ADC141S626, and ADC161S626 chips.
Signed-off-by: Matt Ranostay <mranostay@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This patch adds basic driver implementation for Broadcom's
static adc controller used in iProc SoC's family.
Signed-off-by: Raveendra Padasalagi <raveendra.padasalagi@broadcom.com>
Reviewed-by: Ray Jui <ray.jui@broadcom.com>
Reviewed-by: Scott Branden <scott.branden@broadcom.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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
- 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
...
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>
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>
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.
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>
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>
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>
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>
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>
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>
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>
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>
Signed-off-by: Oliver Stäbler <oliver.staebler@bytesatwork.ch>
Reviewed-by: Martin Kepplinger <martink@posteo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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>
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>
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>
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>
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.
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>
* 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.
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>
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>
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>
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
...
* 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
...
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>
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>
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>
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>
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>
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
...
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>
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>
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>
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>
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>
