- Fix CHECK Macro argument 'wordsize' may be better as '(wordsize)' to avoid precedence issues
Slightly modified by Jonathan to take into account the staging graduation
and a copy and paste version of the same item on the following line.
Signed-off-by: Vladimir Petrigo <vladimir.petrigo@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Move ad7780 ADC driver out of staging and into the mainline.
The ad7780 is a sigma-delta analog to digital converter. This driver provides
reading voltage values and status bits from both the ad778x and ad717x series.
Its interface also allows writing on the FILTER and GAIN GPIO pins on the
ad778x.
Signed-off-by: Renato Lui Geh <renatogeh@gmail.com>
Signed-off-by: Giuliano Belinassi <giuliano.belinassi@usp.br>
Co-developed-by: Giuliano Belinassi <giuliano.belinassi@usp.br>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Until now this driver only exposed the raw value of the channels. With
this patch, the scale value is also exposed.
It depends of a regulator supply, and unlike most of the other driver, do
not having this regulator won't prevent to use the driver. The reason for
it is to allow to continue to use this driver with an old device tree. If
there is no regulator supply then the scale won't be exposed.
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
A few headers is useless: remove them.
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Sort the headers in alphabetic order in order to ease the maintenance for
this part.
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
A return statement is indented one level too deeply; clean this
up by removing a tab.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Stefan Popa <stefan.popa@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Formatting of Kconfig files doesn't look so pretty, so just
take damp cloth and clean it up.
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
When building with -Wsometimes-uninitialized, Clang warns:
drivers/iio/adc/stmpe-adc.c:204:13: warning: variable 'data' is used uninitialized whenever 'if' condition is false [-Wsometimes-uninitialized]
Clang can't tell that data will never be used uninitialized because the
two if statements take care of all cases. Remove the first if statement
and make it the else branch of the second one so that it is apparent to
Clang that all cases are covered.
Link: https://github.com/ClangBuiltLinux/linux/issues/387
Suggested-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: NIck Desaulniers <ndesaulniers@google.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
The ADS79XX has GPIO pins that can be used. Add support for the GPIO
pins using the GPIO chip framework.
Signed-off-by: Justin Chen <justinpopo6@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
devm_iio_trigger_alloc may fail and return NULL. The fix returns
ENOMEM when it fails.
Signed-off-by: Kangjie Lu <kjlu@umn.edu>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Update the module author to the current email address.
Signed-off-by: Sean Nyekjaer <sean@geanix.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Add the SAR ADC driver for the Amlogic Meson-G12A SoC.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Solves checkpath.pl's message:
CHECK: Comparison to NULL could be written "!indio_dev"
Signed-off-by: Bárbara Fernandes <barbara.fernandes@usp.br>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Put macro argument between parenthesis in order to avoid precedence
issues. Solves the following checkpath.pl's messages:
CHECK: Macro argument 'mode' may be better as '(mode)' to avoid
precedence issues
CHECK: Macro argument 'channel' may be better as '(channel)' to
avoid precedence issues
CHECK: Macro argument reuse 'sequence' - possible side-effects?
CHECK: Macro argument 'sequence' may be better as '(sequence)' to
avoid precedence issues
CHECK: Macro argument 'val' may be better as '(val)' to avoid
precedence issues
CHECK: Macro argument 'dec' may be better as '(dec)' to avoid precedence
issues
CHECK: Macro argument 'bits' may be better as '(bits)' to avoid
precedence issues
Signed-off-by: Bárbara Fernandes <barbara.fernandes@usp.br>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Replace use of the operation '<<' by the BIT macro. Solves checkpath.pl's
message:
CHECK: Prefer using the BIT macro
Signed-off-by: Bárbara Fernandes <barbara.fernandes@usp.br>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Get broken line aligned with parenthesis on upper line. Solves
checkpatch.pl's message:
CHECK: Alignment should match open parenthesis
Signed-off-by: Bárbara Fernandes <barbara.fernandes@usp.br>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Indio->mlock is used for protecting the different iio device modes.
It is currently not being used in this way. Replace the lock with
an internal lock specifically used for protecting the SPI transfer
buffer.
Signed-off-by: Justin Chen <justinpopo6@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
There is a error message within devm_ioremap_resource
already, so remove the dev_err call to avoid redundant
error message.
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Here is the big staging/iio driver pull request for 5.1-rc1.
Lots of good IIO driver updates and cleanups in here as always.
Combined with the removal of the xgifb driver, we have a net "loss" of
over 9000 lines in the pull request, always a nice thing.
As the outreachy application process is currently happening, there are
loads of tiny checkpatch cleanup fixes all over the staging tree, which
accounts for the majority of the fixups.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging/IIO updates from Greg KH:
"Here is the big staging/iio driver pull request for 5.1-rc1.
Lots of good IIO driver updates and cleanups in here as always.
Combined with the removal of the xgifb driver, we have a net "loss" of
over 9000 lines in the pull request, always a nice thing.
As the outreachy application process is currently happening, there are
loads of tiny checkpatch cleanup fixes all over the staging tree,
which accounts for the majority of the fixups"
* tag 'staging-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (341 commits)
staging: mt7621-dma: remove license boilerplate text
staging: mt7621-dma: add SPDX GPL-2.0+ license identifier
Staging: ks7010: Replace typecast to int
Staging: vt6655: Align a static function declaration
staging: speakup: fix line over 80 characters.
staging: mt7621-eth: Remove license boilerplate text
staging: mt7621-eth: Add SPDX license identifier
staging: ks7010: removed custom Michael MIC implementation.
staging: rtl8192e: Fix space and suspect issue
Staging: vt6655: Modify comment style of SPDX License Identifier
Staging: vt6655: Modify comment style for SPDX-License-Identifier
Staging: vt6655: Align a function declaration
Staging: vt6655: Alignment of function declaration
staging: rtl8712: Fix indentation issue
staging: wilc1000: fix incorrent type in initializer
staging: rtl8188eu: remove unused P2P_PRIVATE_IOCTL_SET_LEN
staging: rtl8188eu: remove unused enum P2P_PROTO_WK_ID
staging: rtl8723bs: Remove duplicated include from drv_types.h
Staging: vt6655: Alignment should match open parenthesis
staging: erofs: fix mis-acted TAIL merging behavior
...
The pm8xxx_get_channel() implementation is unclear, and causes gcc to
suddenly generate odd warnings. The trigger for the warning (at least
for me) was the entirely unrelated commit 79a4e91d1b ("device.h: Add
__cold to dev_<level> logging functions"), which apparently changes gcc
code generation in the caller function enough to cause this:
drivers/iio/adc/qcom-pm8xxx-xoadc.c: In function ‘pm8xxx_xoadc_probe’:
drivers/iio/adc/qcom-pm8xxx-xoadc.c:633:8: warning: ‘ch’ may be used uninitialized in this function [-Wmaybe-uninitialized]
ret = pm8xxx_read_channel_rsv(adc, ch, AMUX_RSV4,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
&read_nomux_rsv4, true);
~~~~~~~~~~~~~~~~~~~~~~~
drivers/iio/adc/qcom-pm8xxx-xoadc.c:426:27: note: ‘ch’ was declared here
struct pm8xxx_chan_info *ch;
^~
because gcc for some reason then isn't able to see that the termination
condition for the "for( )" loop in that function is also the condition
for returning NULL.
So it's not _actually_ uninitialized, but the function is admittedly
just unnecessarily oddly written.
Simplify and clarify the function, making gcc also see that it always
returns a valid initialized value.
Cc: Joe Perches <joe@perches.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Andy Gross <andy.gross@linaro.org>
Cc: David Brown <david.brown@linaro.org>
Cc: Jonathan Cameron <jic23@kernel.org>
Cc: Hartmut Knaack <knaack.h@gmx.de>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Peter Meerwald-Stadler <pmeerw@pmeerw.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
There are a few late breaking fixes in here that weren't worth trying to
rush into 5.0 as they have been with us for quite a while.
New device support
* ad7476
- add support for TI ADS786X parts that are compatible with this Analog
Devices driver. Good to see some simple devices are so similar.
* Ingenic jz47xx SoC ADCs
- new driver and bindings
* Plantower PMS7003 partical sensor
- new driver and bindings including vendor prefix.
* TI DAC7612
- new driver and bindings for this dual DAC.
New features
* ad7768-1
- Sampling frequency control
* bmi160
- Data ready trigger support, including open-drain dt binding.
Cleanup / minor fixes.
* Analog Device DACs
- Fix some inconsistent licenses. These are only ones where there were
two different license marked in the same file, and hence were previously
unclear.
* ads124s08
- Spelling fix.
* adxl345
- Parameter alignement tidy up.
* bmi160
- SPDX
- correct a note on the types of supported interrupts which was too strict.
- use iio_pollfunc_store_time to grab an earlier timestamp.
- use if (ret) instead of if (ret < 0) to be consistent whilst simplifying
some handling where ret was effectively getting written to 0 even though
it was always already 0.
* exynos_adc
- Fix a null pointer dereference on unbind.
- Fix number of channels on Exynos4x12 devices to be 4 rather than 8.
* lpc32xx-adc
- Move DT bindings doc out of staging. Oops, I missed this one when
moving the driver.
- SPDX.
* npcm-adc
- drop documentation of reset node as going to be done differently.
It's a new driver this cycle so no need to support the previous
binding going forwards.
* sps30
- Fix an issue with a loop timeout test that meant it would never identify
a timeout.
- Mark deliberate switch fall throughs.
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Merge tag 'iio-for-5.1b' 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 IIO in the 5.1 cycle.
There are a few late breaking fixes in here that weren't worth trying to
rush into 5.0 as they have been with us for quite a while.
New device support
* ad7476
- add support for TI ADS786X parts that are compatible with this Analog
Devices driver. Good to see some simple devices are so similar.
* Ingenic jz47xx SoC ADCs
- new driver and bindings
* Plantower PMS7003 partical sensor
- new driver and bindings including vendor prefix.
* TI DAC7612
- new driver and bindings for this dual DAC.
New features
* ad7768-1
- Sampling frequency control
* bmi160
- Data ready trigger support, including open-drain dt binding.
Cleanup / minor fixes.
* Analog Device DACs
- Fix some inconsistent licenses. These are only ones where there were
two different license marked in the same file, and hence were previously
unclear.
* ads124s08
- Spelling fix.
* adxl345
- Parameter alignement tidy up.
* bmi160
- SPDX
- correct a note on the types of supported interrupts which was too strict.
- use iio_pollfunc_store_time to grab an earlier timestamp.
- use if (ret) instead of if (ret < 0) to be consistent whilst simplifying
some handling where ret was effectively getting written to 0 even though
it was always already 0.
* exynos_adc
- Fix a null pointer dereference on unbind.
- Fix number of channels on Exynos4x12 devices to be 4 rather than 8.
* lpc32xx-adc
- Move DT bindings doc out of staging. Oops, I missed this one when
moving the driver.
- SPDX.
* npcm-adc
- drop documentation of reset node as going to be done differently.
It's a new driver this cycle so no need to support the previous
binding going forwards.
* sps30
- Fix an issue with a loop timeout test that meant it would never identify
a timeout.
- Mark deliberate switch fall throughs.
* tag 'iio-for-5.1b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (26 commits)
iio: adc: exynos-adc: Use proper number of channels for Exynos4x12
dt-binding: iio: remove rst node from NPCM ADC document
dt-bindings: iio: chemical: pms7003: add device tree support
dt-bindings: add Plantower to the vendor prefixes
iio: chemical: add support for Plantower PMS7003 sensor
iio:chemical:sps30 Supress some switch fallthrough warnings.
iio:adc:lpc32xx use SPDX-License-Identifier
dt-bindings: iio: adc: move lpc32xx-adc out of staging
iio: adc: ads124s08: fix spelling mistake "converions" -> "conversions"
iio: adc: exynos-adc: Fix NULL pointer exception on unbind
iio: chemical: sps30: fix a loop timeout test
iio:accel:adxl345: Change alignment to match paranthesis
iio:dac:dac7612: device tree bindings
iio:dac:ti-dac7612: Add driver for Texas Instruments DAC7612
iio: adc: ad7476: Add support for TI ADS786X ADCs
iio: adc: ad7768-1: Add support for setting the sampling frequency
drivers: iio: dac: Fix wrong license for ADI drivers
IIO: add Ingenic JZ47xx ADC driver.
dt-bindings: iio/adc: Add bindings for Ingenic JZ47xx SoCs ADC.
dt-bindings: iio/adc: Add docs for Ingenic JZ47xx SoCs ADC.
...
Exynos4212 and Exynos4412 have only four ADC channels so using
"samsung,exynos-adc-v1" compatible (for eight channels ADCv1) on them is
wrong. Add a new compatible for Exynos4x12.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Convert the driver to SPDX license description which allow removing
several lines in the file.
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
There is a spelling mistake in several dev_err messages. Fix these.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Dan Murphy <dmurphy@ti.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Fix NULL pointer exception on device unbind when device tree does not
contain "has-touchscreen" property. In such case the input device is
not registered so it should not be unregistered.
$ echo "12d10000.adc" > /sys/bus/platform/drivers/exynos-adc/unbind
Unable to handle kernel NULL pointer dereference at virtual address 00000474
...
(input_unregister_device) from [<c0772060>] (exynos_adc_remove+0x20/0x80)
(exynos_adc_remove) from [<c0587d5c>] (platform_drv_remove+0x20/0x40)
(platform_drv_remove) from [<c05860f0>] (device_release_driver_internal+0xdc/0x1ac)
(device_release_driver_internal) from [<c0583ecc>] (unbind_store+0x60/0xd4)
(unbind_store) from [<c031b89c>] (kernfs_fop_write+0x100/0x1e0)
(kernfs_fop_write) from [<c029709c>] (__vfs_write+0x2c/0x17c)
(__vfs_write) from [<c0297374>] (vfs_write+0xa4/0x184)
(vfs_write) from [<c0297594>] (ksys_write+0x4c/0xac)
(ksys_write) from [<c0101000>] (ret_fast_syscall+0x0/0x28)
Fixes: 2bb8ad9b44 ("iio: exynos-adc: add experimental touchscreen support")
Cc: <stable@vger.kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Add support for Texas Instruments ADS7866, ADS7867 and ADS7868
8/10/12 bit Single channel ADC.
Datasheet: http://www.ti.com/lit/ds/symlink/ads7868.pdf
Signed-off-by: Ricardo Ribalda Delgado <ricardo@ribalda.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
The AD7768-1 core ADC receives a master clock signal (MCLK). The MCLK
frequency combined with the MCLK division and the digital filter
decimation rates, determines the sampling frequency. Along with
MCLK_DIV, the power mode is also configured according to datasheet
recommendations.
From user space, available sampling frequencies can be read. However,
it is not required for an exact value to be entered, since the driver
will look for the closest available match.
When the device configuration changes (for example, if the filter
decimation rate changes), a SYNC_IN pulse is required.
Signed-off-by: Stefan Popa <stefan.popa@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Add an IIO driver for the ADC hardware present on Ingenic JZ47xx SoCs.
Signed-off-by: Artur Rojek <contact@artur-rojek.eu>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
A number of interesting new devices supported plus a good set of staging
cleanup including one graduation and one drop.
New device support
* ad56886
- Add support for AD5674R/AD5679R with some minor driver changes to support
more channels.
* ad7768
- New driver and dt bindings for this 24 bit ADC.
* max44009
- New driver and dt bindings for this ambient light sensor.
* mpu6050
- Support the ICM 20602 IMU. Minor tweaks due to slightly different
register map.
* NPCM adc
- New driver and dt bindings for this BMC ADC.
* Sensiron SGP30
- Modifiers for ethanol and H2.
- New driver and dt bindings.
- Follow patch added self cleaning support.
* Sensiron SPS30
- New channel type for mass concentration.
- New driver and bindings.
- Minor tidy up patch followed (drop fmt specifier as unused)
* st_pressure
- lps22hh support. ID plus information structures and dt bindings.
* ti-ads124s08
- Add binding doc and driver.
Staging graduations
* ad7606 driver and bindings.
Staging drops
* ad7152 CDC driver dropped. This part is near EoL and no one is known
to be using it. If anyone surfaces obviously we can bring the driver
back. If not, good to drop it to avoid wasting anyone's time cleaning
it up.
New features
* bme680
- DT support and bindings doc.
* isl29018
- Add regulator for VCC.
* mag3110
- Add regulators for supplies.
* meson-saradc
- Support the temperature sensors of more SoCs.
* mma8452
- Add regulators for power suplies and binding docs to reflect them.
* st-accel
- Support the undocumented but it seems fairly common _ONT ACPI method
to specify orientation of the sensor.
Cleanup, minor fixes and fixes for staging driver that have been broken a
long time
* ad5933
- Drop platform data alternative to specifying the reference voltage
using a regulator.
- Use the clock framework to contorl the reference clock.
- Add a DT binding doc to cover the defacto binding.
* ad7280a
- Split up some big functions to improve readability.
* ad7606
- Allow for timeout if interrupt never occurs.
- Use devm functions to simplify probe and remove.
- Use the find_closest macro to avoid need for precise values from
userspace.
- Add missing vendor prefixes for various DT properties. Note the
driver is in staging still and there are no known devicetrees.
- Add explict OF device ID table.
- Simplify the Kconfig choices
- Change to a threaded IRQ.
- SPDX and simple stype fixes.
* ad7816
- Drop unnecessary variable init.
* ad9523
- Check a return value that was ignored.
* ad9833
- Drop platform data. It was just setting most values to the hardware
defaults.
- Use the clock framework to provide the input clock.
* adt7316 (lots of staging cleanup)
- Fix some wrong register / bit definitions
- Invert the logic of the check for an ldac pin so it actually makes sense.
- Read the right register to get internal vref settings
- Allow adt751x chips to use the internal vref for all DAC channels rather
than a subset.
- Remove dac vref bypass control from parts that don't have one.
- Make the store DAC update mode function consistent with the show one.
- Fix some spellings and other minor tidy up.
- Avoid passing irq numbers around by putting all the irq logic in
one place.
- Fix an issue with the resolution of DAC control.
- Fix support of the high resolution DAC mode (for temp proportional output)
where supported.
- Fix DAC read and write calculations.
* st_lsm6dsx
- Drop an unused variable (set but not read)
* xilinx-xadc
- Check an unhandled return value.
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Merge tag 'iio-for-5.1a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next
Jonathan writes:
First set of new device support, features and cleanup for IIO in the 5.1 cycle
A number of interesting new devices supported plus a good set of staging
cleanup including one graduation and one drop.
New device support
* ad56886
- Add support for AD5674R/AD5679R with some minor driver changes to support
more channels.
* ad7768
- New driver and dt bindings for this 24 bit ADC.
* max44009
- New driver and dt bindings for this ambient light sensor.
* mpu6050
- Support the ICM 20602 IMU. Minor tweaks due to slightly different
register map.
* NPCM adc
- New driver and dt bindings for this BMC ADC.
* Sensiron SGP30
- Modifiers for ethanol and H2.
- New driver and dt bindings.
- Follow patch added self cleaning support.
* Sensiron SPS30
- New channel type for mass concentration.
- New driver and bindings.
- Minor tidy up patch followed (drop fmt specifier as unused)
* st_pressure
- lps22hh support. ID plus information structures and dt bindings.
* ti-ads124s08
- Add binding doc and driver.
Staging graduations
* ad7606 driver and bindings.
Staging drops
* ad7152 CDC driver dropped. This part is near EoL and no one is known
to be using it. If anyone surfaces obviously we can bring the driver
back. If not, good to drop it to avoid wasting anyone's time cleaning
it up.
New features
* bme680
- DT support and bindings doc.
* isl29018
- Add regulator for VCC.
* mag3110
- Add regulators for supplies.
* meson-saradc
- Support the temperature sensors of more SoCs.
* mma8452
- Add regulators for power suplies and binding docs to reflect them.
* st-accel
- Support the undocumented but it seems fairly common _ONT ACPI method
to specify orientation of the sensor.
Cleanup, minor fixes and fixes for staging driver that have been broken a
long time
* ad5933
- Drop platform data alternative to specifying the reference voltage
using a regulator.
- Use the clock framework to contorl the reference clock.
- Add a DT binding doc to cover the defacto binding.
* ad7280a
- Split up some big functions to improve readability.
* ad7606
- Allow for timeout if interrupt never occurs.
- Use devm functions to simplify probe and remove.
- Use the find_closest macro to avoid need for precise values from
userspace.
- Add missing vendor prefixes for various DT properties. Note the
driver is in staging still and there are no known devicetrees.
- Add explict OF device ID table.
- Simplify the Kconfig choices
- Change to a threaded IRQ.
- SPDX and simple stype fixes.
* ad7816
- Drop unnecessary variable init.
* ad9523
- Check a return value that was ignored.
* ad9833
- Drop platform data. It was just setting most values to the hardware
defaults.
- Use the clock framework to provide the input clock.
* adt7316 (lots of staging cleanup)
- Fix some wrong register / bit definitions
- Invert the logic of the check for an ldac pin so it actually makes sense.
- Read the right register to get internal vref settings
- Allow adt751x chips to use the internal vref for all DAC channels rather
than a subset.
- Remove dac vref bypass control from parts that don't have one.
- Make the store DAC update mode function consistent with the show one.
- Fix some spellings and other minor tidy up.
- Avoid passing irq numbers around by putting all the irq logic in
one place.
- Fix an issue with the resolution of DAC control.
- Fix support of the high resolution DAC mode (for temp proportional output)
where supported.
- Fix DAC read and write calculations.
* st_lsm6dsx
- Drop an unused variable (set but not read)
* xilinx-xadc
- Check an unhandled return value.
* tag 'iio-for-5.1a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (67 commits)
iio: chemical: sps30: remove printk format specifier
staging: iio: frequency: ad9833: Load clock using clock framework
staging: iio: frequency: ad9833: Get frequency value statically
dt-bindings: iio: light: Add max44009
iio: light: add driver for MAX44009
dt-bindings: iio: adc: Add docs for AD7768-1
iio: adc: Add AD7768-1 ADC basic support
staging: iio: cdc: ad7152: remove driver completely
iio: imu: mpu6050: Add support for the ICM 20602 IMU
dt-bindings: iio: imu: add icm20602 bindings to mpu6050
dt-bindings: iio: pressure: add LPS22HH bindings
iio: st_accel: use ACPI orientation data
iio: adc: add NPCM ADC driver
dt-binding: iio: add NPCM ADC documentation
iio: chemical: sps30: allow changing self cleaning period
dt-bindings: iio: chemical: Add bindings for bme680
iio: chemical: bme680: Add device-tree support
iio:st_pressure:initial lps22hh sensor support
iio: accell: mma8452: add vdd/vddio regulator operation support
dt-bindings: iio: accel: mma8452: add power supplies property
...
Been a busy month, so these are rather later than they should have been.
* atlas-ph-sensor:
- Temperature scale didn't correspond to the ABI.
* axp288:
- A few different fixes around the TS-pin handling.
* ti-ads8688
- Not enough space in the buffer used to build the scan to allow for
the timestamp.
* tools - iio_generic_buffer
- Make num_loops signed so that we really are running for ever
rather than just a long time when we specify -1.
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Merge tag 'iio-fixes-5.0a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus
Jonathan writes:
First set of IIO fixes for the 5.0 cycle.
Been a busy month, so these are rather later than they should have been.
* atlas-ph-sensor:
- Temperature scale didn't correspond to the ABI.
* axp288:
- A few different fixes around the TS-pin handling.
* ti-ads8688
- Not enough space in the buffer used to build the scan to allow for
the timestamp.
* tools - iio_generic_buffer
- Make num_loops signed so that we really are running for ever
rather than just a long time when we specify -1.
* tag 'iio-fixes-5.0a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio:
iio: ti-ads8688: Update buffer allocation for timestamps
tools: iio: iio_generic_buffer: make num_loops signed
iio: adc: axp288: Fix TS-pin handling
iio: chemical: atlas-ph-sensor: correct IIO_TEMP values to millicelsius
The ad7768-1 is a single channel, precision 24-bit analog to digital
converter (ADC).
This basic patch configures the device in fast mode, with 32 kSPS and
leaves the default sinc5 filter.
Two data conversion modes are made available. When data is retrieved by
using the read_raw attribute, one shot single conversion mode is set.
The continuous conversion mode is enabled when the triggered buffer
mechanism is used. To assure correct data retrieval, the driver waits
for the interrupt triggered by the low to high transition of the DRDY
pin.
Datasheets:
Link: https://www.analog.com/media/en/technical-documentation/data-sheets/ad7768-1.pdf
Signed-off-by: Stefan Popa <stefan.popa@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This adds an ADC driver for the STMPE device using the industrial
input/output interface. The driver supports raw reading of values.
The driver depends on the MFD STMPE driver. If the touchscreen
block is enabled too, only four of the 8 ADC channels are available.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
- Add support for Power Supply to AXP813
- Add support for GPIO, ADC, AC and Battery Power Supply to AXP803
- Add support for UART to Exynos LPASS
- Fix-ups
- Use supplied MACROS; ti_am335x_tscadc
- Trivial spelling/whitespace/alignment; tmio, axp20x, rave-sp
- Regmap changes; bd9571mwv, wm5110-tables
- Kconfig dependencies; MFD_AT91_USART
- Supply shared data for child-devices; madera-core
- Use new of_node_name_eq() API call; max77620, stmpe
- Use managed resources (devm_*); tps65218
- Comment descriptions; ingenic-tcu
- Coding style; madera-core
- Bug Fixes
- Fix section mismatches; twl-core, db8500-prcmu
- Correct error path related issues; mt6397-core, ab8500-core, mc13xxx-core
- IRQ related fixes; tps6586x
- Ensure proper initialisation sequence; qcom_rpm
- Repair potential memory leak; cros_ec_dev
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Merge tag 'mfd-next-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones:
"New Device Support
- Add support for Power Supply to AXP813
- Add support for GPIO, ADC, AC and Battery Power Supply to AXP803
- Add support for UART to Exynos LPASS
Fix-ups:
- Use supplied MACROS; ti_am335x_tscadc
- Trivial spelling/whitespace/alignment; tmio, axp20x, rave-sp
- Regmap changes; bd9571mwv, wm5110-tables
- Kconfig dependencies; MFD_AT91_USART
- Supply shared data for child-devices; madera-core
- Use new of_node_name_eq() API call; max77620, stmpe
- Use managed resources (devm_*); tps65218
- Comment descriptions; ingenic-tcu
- Coding style; madera-core
Bug Fixes:
- Fix section mismatches; twl-core, db8500-prcmu
- Correct error path related issues; mt6397-core, ab8500-core, mc13xxx-core
- IRQ related fixes; tps6586x
- Ensure proper initialisation sequence; qcom_rpm
- Repair potential memory leak; cros_ec_dev"
* tag 'mfd-next-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (25 commits)
mfd: exynos-lpass: Enable UART module support
mfd: mc13xxx: Fix a missing check of a register-read failure
mfd: cros_ec: Add commands to control codec
mfd: madera: Remove spurious semicolon in while loop
mfd: rave-sp: Fix typo in rave_sp_checksum comment
mfd: ingenic-tcu: Fix bit field description in header
mfd: tps65218: Use devm_regmap_add_irq_chip and clean up error path in probe()
mfd: Use of_node_name_eq() for node name comparisons
mfd: cros_ec_dev: Add missing mfd_remove_devices() call in remove
mfd: axp20x: Add supported cells for AXP803
mfd: axp20x: Re-align MFD cell entries
mfd: axp20x: Add AC power supply cell for AXP813
mfd: wm5110: Add missing ASRC rate register
mfd: qcom_rpm: write fw_version to CTRL_REG
mfd: tps6586x: Handle interrupts on suspend
mfd: madera: Add shared data for accessory detection
mfd: at91-usart: Add platform dependency
mfd: bd9571mwv: Add volatile register to make DVFS work
mfd: ab8500-core: Return zero in get_register_interruptible()
mfd: tmio: Typo s/use use/use/
...
Introduce the TI ADS124S08 and the ADS124S06 ADC
devices from TI. The ADS124S08 is the 12 channel ADC
and the ADS124S06 is the 6 channel ADC device
These devices share a common datasheet:
http://www.ti.com/lit/gpn/ads124s08
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Per Jonathan Cameron, the buffer needs to allocate room for a
64 bit timestamp as well as the channels. Change the buffer
to allocate this additional space.
Fixes: 2a86487786 ("iio: adc: ti-ads8688: add trigger and buffer support")
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Prior to this commit there were 3 issues with our handling of the TS-pin:
1) There are 2 ways how the firmware can disable monitoring of the TS-pin
for designs which do not have a temperature-sensor for the battery:
a) Clearing bit 0 of the AXP20X_ADC_EN1 register
b) Setting bit 2 of the AXP288_ADC_TS_PIN_CTRL monitoring
Prior to this commit we were unconditionally setting both bits to the
value used on devices with a TS. This causes the temperature protection to
kick in on devices without a TS, such as the Jumper ezbook v2, causing
them to not charge under Linux.
This commit fixes this by using regmap_update_bits when updating these 2
registers, leaving the 2 mentioned bits alone.
The next 2 problems are related to our handling of the current-source
for the TS-pin. The current-source used for the battery temp-sensor (TS)
is shared with the GPADC. For proper fuel-gauge and charger operation the
TS current-source needs to be permanently on. But to read the GPADC we
need to temporary switch the TS current-source to ondemand, so that the
GPADC can use it, otherwise we will always read an all 0 value.
2) Problem 2 is we were writing hardcoded values to the ADC TS pin-ctrl
register, overwriting various other unrelated bits. Specifically we were
overwriting the current-source setting for the TS and GPIO0 pins, forcing
it to 80ųA independent of its original setting. On a Chuwi Vi10 tablet
this was causing us to get a too high adc value (due to a too high
current-source) resulting in the following errors being logged:
ACPI Error: AE_ERROR, Returned by Handler for [UserDefinedRegion]
ACPI Error: Method parse/execution failed \_SB.SXP1._TMP, AE_ERROR
This commit fixes this by using regmap_update_bits to change only the
relevant bits.
3) After reading the GPADC channel we were unconditionally enabling the
TS current-source even on devices where the TS-pin is not used and the
current-source thus was off before axp288_adc_read_raw call.
This commit fixes this by making axp288_adc_set_ts a nop on devices where
the ADC is not enabled for the TS-pin.
BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1610545
Fixes: 3091141d78 ("iio: adc: axp288: Fix the GPADC pin ...")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
In function xadc_probe, xadc_write_adc_reg can return an error value
when write fails. The fix checks for the return value consistent with
other invocations of the latter function.
Signed-off-by: Aditya Pakki <pakki001@umn.edu>
Reviewed-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Meson8b and Meson8m2 use the same logic to convert the ADC register
value to celsius, which is different from Meson8:
- Meson8 has different multiplier and divider values
- Meson8 uses a 4-bit TSC (temperature sensor coefficient) which fits
into the 4-bit field in the MESON_SAR_ADC_DELTA_10 register:
MESON_SAR_ADC_DELTA_10_TS_C_MASK. Meson8b and Meson8m2 have a 5-bit
TSC which requires writing the upper-most bit into the
MESON_HHI_DPLL_TOP_0[9] register from the HHI register area.
This adds support for the temperature sensor on the Meson8b and Meson8m2
SoCs by implementing the logic to write the upper-most TSC bit into the
HHI register area. The SoC-specific values (temperature_trimming_bits,
temperature_multiplier, temperature_divider) are added - these simply
integrate into the existing infrastructure (which was implemented for
Meson8) and thus require no further changes to the existing temperature
calculation logic.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Move ad7606 ADC driver out of staging and into the mainline.
Signed-off-by: Stefan Popa <stefan.popa@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
adc5_get_dt_data uses a local, prop, feeds it to adc5_get_dt_channel_data,
and then puts the result into adc->chan_props. The problem is
adc5_get_dt_channel_data may not initialize that structure fully, so a
garbage value is used for prescale if the optional "qcom,pre-scaling" is
not defined in DT. adc5_read_raw then uses this as an array index,
generating a crash that looks like this:
[ 6.683186] Unable to handle kernel paging request at virtual address ffffff90e78c7964
Call trace:
qcom_vadc_scale_code_voltage_factor+0x74/0x104
qcom_vadc_scale_hw_calib_die_temp+0x20/0x60
qcom_adc5_hw_scale+0x78/0xa4
adc5_read_raw+0x3d0/0x65c
iio_channel_read+0x240/0x30c
iio_read_channel_processed+0x10c/0x150
qpnp_tm_get_temp+0xc0/0x40c
of_thermal_get_temp+0x7c/0x98
thermal_zone_get_temp+0xac/0xd8
thermal_zone_device_update+0xc0/0x38c
qpnp_tm_probe+0x624/0x81c
platform_drv_probe+0xe4/0x11c
really_probe+0x188/0x3fc
driver_probe_device+0xb8/0x188
__device_attach_driver+0x114/0x180
bus_for_each_drv+0xd8/0x118
__device_attach+0x180/0x27c
device_initial_probe+0x20/0x2c
bus_probe_device+0x78/0x124
deferred_probe_work_func+0xfc/0x138
process_one_work+0x3d8/0x8b0
process_scheduled_works+0x48/0x6c
worker_thread+0x488/0x7cc
kthread+0x24c/0x264
ret_from_fork+0x10/0x18
Unfortunately, when I went to add the initializer for this and tried to
boot it, my machine shut down immediately, complaining that it was
hotter than the sun. It appears that adc5_chans_pmic and adc5_chans_rev2
were initializing prescale_index as if it were directly a divisor,
rather than the index into adc5_prescale_ratios that it is.
Fix the uninitialized value, and change the static initialization to use
indices into adc5_prescale_ratios.
Signed-off-by: Evan Green <evgreen@chromium.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Make it possible to use Exynos ADC driver on S5PV210 based devices.
Signed-off-by: Jonathan Bakker <xc-racer2@live.ca>
Signed-off-by: Paweł Chmiel <pawel.mikolaj.chmiel@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
S5PV210's ADC variant is almost the same as v1 except that it has 10
channels and doesn't require the pmu register
Signed-off-by: Jonathan Bakker <xc-racer2@live.ca>
Signed-off-by: Paweł Chmiel <pawel.mikolaj.chmiel@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
When performing single ended measurements with TSCADC, its recommended
to set negative input (SEL_INM_SWC_3_0) of ADC step to ADC's VREFN in the
corresponding STEP_CONFIGx register.
Also, the positive(SEL_RFP_SWC_2_0) and negative(SEL_RFM_SWC_1_0)
reference voltage for ADC step needs to be set to VREFP and VREFN
respectively in STEP_CONFIGx register.
Without these changes, there may be variation of as much as ~2% in the
ADC's digital output which is bad for precise measurement.
Signed-off-by: Vignesh R <vigneshr@ti.com>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Switch off ADC when going to low power mode, in case it has been left
running in buffer mode. Then re-enable it when resuming.
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Add support for runtime PM & sleep. Move all regulator and clock management
to dedicated HW start/stop routines. Then rely on (runtime) PM OPS to
call them.
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Move self-calibration routine to prepare routine.
- This is precursor patch to ease power management handling.
- This also allow to factorize few error cases (error handling).
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
