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path: root/drivers/iio/adc/ad7923.c
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2020-07-20iio: adc: ad7923: Demote obvious misuse of kerneldoc to standard comment blocksLee Jones
No attempt has been made to document either of the demoted functions here Fixes the following W=1 kernel build warning(s): drivers/iio/adc/ad7923.c:159: warning: Function parameter or member 'indio_dev' not described in 'ad7923_update_scan_mode' drivers/iio/adc/ad7923.c:159: warning: Function parameter or member 'active_scan_mask' not described in 'ad7923_update_scan_mode' drivers/iio/adc/ad7923.c:202: warning: Function parameter or member 'irq' not described in 'ad7923_trigger_handler' drivers/iio/adc/ad7923.c:202: warning: Function parameter or member 'p' not described in 'ad7923_trigger_handler' Cc: Michael Hennerich <Michael.Hennerich@analog.com> Cc: Patrick Vasseur <patrick.vasseur@c-s.fr> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-06-14iio: Remove superfluous of_node assignmentsLars-Peter Clausen
If a driver does not assign an of_node to a IIO device to IIO core will automatically assign the of_node of the parent device. This automatic assignment is done in the iio_device_register() function. There is a fair amount of drivers that currently manually assign the of_node of the IIO device. All but 4 of them can make use of the automatic assignment though. The exceptions are: * mxs-lradc-adc: Which uses the of_node of the parent of the parent. * stm32-dfsdm-adc, stm32-adc and stm32-dac: Which reference the of_node assigned to the IIO device before iio_device_register() is called. All other drivers are updated to use automatic assignment. This reduces the amount of boilerplate code involved in setting up the IIO device. The patch has mostly been auto-generated with the following semantic patch // <smpl> @exists@ expression indio_dev; expression parent; @@ indio_dev = \(devm_iio_device_alloc\|iio_device_alloc\)(&parent, ...) ... -indio_dev->dev.of_node = parent.of_node; @exists@ expression indio_dev; expression parent; @@ indio_dev = \(devm_iio_device_alloc\|iio_device_alloc\)(parent, ...) ... -indio_dev->dev.of_node = parent->of_node; // </smpl> Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-06-14iio: remove explicit IIO device parent assignmentAlexandru Ardelean
This patch applies the semantic patch: @@ expression I, P, SP; @@ I = devm_iio_device_alloc(P, SP); ... - I->dev.parent = P; It updates 302 files and does 307 deletions. This semantic patch also removes some comments like '/* Establish that the iio_dev is a child of the i2c device */' But this is is only done in case where the block is left empty. The patch does not seem to cover all cases. It looks like in some cases a different variable is used in some cases to assign the parent, but it points to the same reference. In other cases, the block covered by ... may be just too big to be covered by the semantic patch. However, this looks pretty good as well, as it does cover a big bulk of the drivers that should remove the parent assignment. Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-12-29iio: adc: ad7923: Add support for the ad7908/ad7918/ad7928Daniel Junho
The ad7928 is software compatible with the ad7923. The ad7908 and ad7918 are the 8 and 10-bit versions of the ad7928. Signed-off-by: Daniel Junho <djunho@gmail.com> Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-12-29iio: adc: ad7923: Add of_device_id tableDaniel Junho
Accomplish device tree compatibility to driver AD7923 by adding of_device_id table and making a subsequent call to MODULE_DEVICE_TABLE. Signed-off-by: Daniel Junho <djunho@gmail.com> Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-12-29iio: adc: ad7923: Fix checkpatch warningDaniel Junho
Fix checkpatch warning: WARNING: Prefer 'unsigned int' to bare use of 'unsigned' +static int ad7923_scan_direct(struct ad7923_state *st, unsigned ch) Signed-off-by: Daniel Junho <djunho@gmail.com> Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-12-29iio: adc: ad7923: Remove the unused definesDaniel Junho
Removes the unused define AD7923_CHANNEL_x from the code. Signed-off-by: Daniel Junho <djunho@gmail.com> Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-05-30treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 177Thomas Gleixner
Based on 1 normalized pattern(s): licensed under the gpl 2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 135 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Reviewed-by: Steve Winslow <swinslow@gmail.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190528170026.071193225@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-04iio:adc:ad7923: Rewrite comparison to NULLBárbara Fernandes
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>
2019-04-04iio:adc:ad7923: Put macro argument between ()'sBárbara Fernandes
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>
2019-04-04iio:adc:ad7923: Use BIT macro instead of bitshiftBárbara Fernandes
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>
2019-04-04iio:adc:ad7923: Align broken line to parenthesisBárbara Fernandes
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>
2018-08-19drivers: iio: Update MODULE AUTHOR email addressMichael Hennerich
no functional changes Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-08-22iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.ownerJonathan Cameron
The equivalent of both of these are now done via macro magic when the relevant register calls are made. The actual structure elements will shortly go away. Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
2016-07-03iio: adc: add missing of_node references to iio_devMatt Ranostay
Adding missing indio_dev->dev.of_node references to allow iio consumers to access the device channels. Signed-off-by: Matt Ranostay <mranostay@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-06-30iio:core: timestamping clock selection supportGregor Boirie
Adds a new per-device sysfs attribute "current_timestamp_clock" to allow userspace to select a particular POSIX clock for buffered samples and events timestamping. Following clocks, as listed in clock_gettime(2), are supported: CLOCK_REALTIME, CLOCK_MONOTONIC, CLOCK_MONOTONIC_RAW, CLOCK_REALTIME_COARSE, CLOCK_MONOTONIC_COARSE, CLOCK_BOOTTIME and CLOCK_TAI. Signed-off-by: Gregor Boirie <gregor.boirie@parrot.com> Acked-by: Sanchayan Maity <maitysanchayan@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-05-29iio: adc: ad7923: use iio helper function to guarantee direct modeAlison Schofield
Replace the code that guarantees the device stays in direct mode with iio_device_claim_direct_mode() which does same. Signed-off-by: Alison Schofield <amsfield22@gmail.com> Acked-by: Daniel Baluta <daniel.baluta@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-10-28spi: Drop owner assignment from spi_driversAndrew F. Davis
An spi_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Andrew F. Davis <afd@ti.com> Acked-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2013-09-21iio:ad7923: Use iio_push_to_buffers_with_timestamp()Lars-Peter Clausen
Makes the code a bit shorter and less ugly. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-09-15iio: Remove unnecessary casts for iio_push_to_buffers()Lars-Peter Clausen
Now that iio_push_to_buffers() takes a void pointer for the data parameter we can remove those casts to u8*. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-08-03iio: adc: ad7923: Use devm_* APIsSachin Kamat
devm_* APIs are device managed and make code simpler. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-03-17iio:adc:ad7923: Add support for the ad7904/ad7914/ad7924Lars-Peter Clausen
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>
2013-03-17iio:ad7923: Implement scale reportingLars-Peter Clausen
The driver already claims to support scale reporting in its channel spec, but doesn't actually implement this yet. This patch uses the regulator API to get the reference voltage and calculates the scale based on that. The patch also moves the global configuration bits into a field in the ad7923_state struct, since depending on the RANGE bit, the range goes either from 0 to VREF or from 0 to 2 * VREF. So we need to know the setting of the RANGE bit when calculating the scale. 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>
2013-03-17iio:ad7923: Return error if we didn't get the expected resultLars-Peter Clausen
Instead of leaving 'val' uninitialized return an error if the result's address did not match that of the channel we were trying to read. 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>
2013-03-17iio:adc:ad7923 move to info_mask_(shared_by_type/separate)Jonathan Cameron
The original info_mask is going away in favour of the broken out versions. Signed-off-by: Jonathan Cameron <jic23@kernel.org> Acked-by: Lars-Peter Clausen <lars@metafoo.de> cc: Patrick Vasseur <patrick.vasseur@c-s.fr> cc: Christophe Leroy <christophe.leroy@c-s.fr>
2013-03-16IIO ADC support for AD7923Christophe Leroy
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>
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