There is nothing else that needs to be done for this driver. The remove
hook calls only the iio_device_unregister() hook.
So this driver can use devm_iio_device_register() directly.
Signed-off-by: Alexandru Ardelean <aardelean@deviqon.com>
Link: https://lore.kernel.org/r/20210913115308.301877-1-aardelean@deviqon.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This change converts the probe of the AD5064 driver to use only
device-managed functions.
The regulator_bulk_disable() is passed on a devm_add_action_or_reset() hook
and the devm_iio_device_register() can be used to register the IIO device.
The driver has both I2C and SPI hooks inside, so all these can be removed.
Signed-off-by: Alexandru Ardelean <aardelean@deviqon.com>
Link: https://lore.kernel.org/r/20210913115237.301310-1-aardelean@deviqon.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This change does a conversion of the driver to use device-managed init
functions. The 2 regulators and the clock inits are converted to use
devm_add_action_or_reset() callbacks for de-initializing them when the
driver unloads.
And finally the devm_iio_device_register() function can be use to register
the device.
The remove hook can finally be removed and the spi_set_drvdata() call can
also be removed as the private data is no longer used.
Signed-off-by: Alexandru Ardelean <aardelean@deviqon.com>
Link: https://lore.kernel.org/r/20210913115209.300665-1-aardelean@deviqon.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
For this conversion, the regulators need to have some cleanup hooks
registered with devm_add_action_or_reset() and then the
devm_io_device_register() call can be used.
Signed-off-by: Alexandru Ardelean <aardelean@deviqon.com>
Link: https://lore.kernel.org/r/20210913115121.300082-1-aardelean@deviqon.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
When building kernels without ACPI support the table is declared
but is not used because ACPI_PTR() turns it into a NULL.
Add the __maybe_unused attribute to stop the compiler whining.
Signed-off-by: Daniel Palmer <daniel@0x0f.com>
Acked-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com>
Link: https://lore.kernel.org/r/20210913112913.2148026-1-daniel@0x0f.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Use the devm_platform_ioremap_resource() helper instead of
calling platform_get_resource() and devm_ioremap_resource()
separately
Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>
Link: https://lore.kernel.org/r/20210908105646.1576-1-caihuoqing@baidu.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Provide a way for continuous data capture by setting up buffer support. The
data ready signal exposed at the DRDY pin of the ADXL355 is exploited as
a hardware interrupt which triggers to fill the buffer.
Signed-off-by: Puranjay Mohan <puranjay12@gmail.com>
Link: https://lore.kernel.org/r/20210903184312.21009-3-puranjay12@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This patch completes the declare of ADC register bitfields and uses the
same prefix ASPEED_ADC_* for these bitfields. In addition, tidy up space
alignment of the codes.
Signed-off-by: Billy Tsai <billy_tsai@aspeedtech.com>
Link: https://lore.kernel.org/r/20210831071458.2334-4-billy_tsai@aspeedtech.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Add device tree bindings document for the aspeed ast2600 adc device
driver.
Signed-off-by: Billy Tsai <billy_tsai@aspeedtech.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210831071458.2334-3-billy_tsai@aspeedtech.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This change converts the driver to register via devm_iio_device_register().
The regulator disable is moved on a devm_add_action_or_reset() hook.
And the spi_set_drvdata() isn't required anymore.
And finally, the ads8344_remove() can be removed as well.
Signed-off-by: Alexandru Ardelean <aardelean@deviqon.com>
Link: https://lore.kernel.org/r/20210903073707.46892-1-aardelean@deviqon.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Update copyright and authors information (corrected e-mail address), and
add myself as one of the authors.
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Link: https://lore.kernel.org/r/20210901123013.329792-9-eugen.hristev@microchip.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Add support to sama7g5 ADC which is similar with sama5d2/sam9x60 device.
Differences are highlighted by compatible.
Main differences include 16 channels instead of 12 and missing
resistive touchscreen.
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Link: https://lore.kernel.org/r/20210901123013.329792-8-eugen.hristev@microchip.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Add helper for the COR register. This helper allows to modify the COR
register, removes duplicate code and improves readability.
The COR offset is now part of the register layout. This will allow
different platform with a different offset to use the same helper.
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Link: https://lore.kernel.org/r/20210901123013.329792-7-eugen.hristev@microchip.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Some platforms have separated the end-of-conversion information from the
usual ISR/IMR/IER/IDR registers, into EOC_ISR/EOC_IMR/EOC_IER/EOC_IDR.
To cope with both variants, helpers are being added, that will make
code more clear and more easy to read.
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Link: https://lore.kernel.org/r/20210901123013.329792-6-eugen.hristev@microchip.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Convert the driver to platform specific structures. This means:
- create a register layout struct that will hold offsets for registers
- create a platform struct that will hold platform information (number of
channels, indexes for different channels and pointer to layout struct)
- convert specific macros that are platform dependent into platform variables
This step is in fact a no-op, but allows the driver to be more flexible
and for future enhancement including adding new platforms that are partly
compatible with the current driver and differ slightly in register layout
or capabilities for example.
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Link: https://lore.kernel.org/r/20210901123013.329792-5-eugen.hristev@microchip.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
The hw_init hardware init call must happen after the clock is prepared and
enabled. Otherwise, writing to the registers might lead to a block or
external abort.
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Link: https://lore.kernel.org/r/20210901123013.329792-3-eugen.hristev@microchip.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Add additional AK09116 to the magnetometer driver which has the same
register mapping and scaling as the AK09112 device.
Signed-off-by: Matt Ranostay <matt.ranostay@konsulko.com>
Link: https://lore.kernel.org/r/20210825020738.35877-1-matt.ranostay@konsulko.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Remove braces from single line if blocks to clear checkpatch warnings.
WARNING: braces {} are not necessary for single statement blocks
Signed-off-by: Alexander Vorwerk <alec@vc-celle.de>
Link: https://lore.kernel.org/r/20210820224914.1260-1-alec@vc-celle.de
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
If there are no channels defined in the devicetree, there's no point in
probing the device. We were actually requesting a zero sized 'kmalloc'
array but since we were not touching the ZERO_SIZE_PTR afterwards,
nothing bad was actually happening. Hence this is not really a fix but
rather an improvement.
Reviewed-by: Alexandru Ardelean <ardeleanalex@gmail.com>
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20210825084149.11587-2-nuno.sa@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
The bindings file for this driver is defining the property as 'reg' but
the driver was reading it with the 'num' name. The bindings actually had
the 'num' property when added in
commit ea52c21268 ("dt-bindings: iio: dac: Add docs for AD5770R DAC")
and then changed it to 'reg' in
commit 2cf3818f18 ("dt-bindings: iio: dac: AD5570R fix bindings errors").
However, both these commits landed in v5.7 so the assumption is
that either 'num' is not being used or if it is, the validations were not
done.
Anyways, if someone comes back yelling about this, we might just support
both of the properties in the future. Not ideal, but that's life...
Fixes: 2cf3818f18 ("dt-bindings: iio: dac: AD5570R fix bindings errors")
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20210818080525.62790-1-nuno.sa@analog.com
Cc: Stable@vger.kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Commit b1fe0cf06f ("Input: delete MPU3050 driver") deletes the superseded
MPU3050 driver and its corresponding config INPUT_MPU3050.
The dependencies on the superseding driver in ./drivers/iio/gyro/Kconfig
to ensure that the two drivers are not built into the same kernel is a dead
dependency and not required anymore.
So, remove those config dependencies on INPUT_MPU3050 for MPU3050_I2C.
This issue was detected with ./scripts/checkkconfigsymbols.py.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210817081330.9645-1-lukas.bulwahn@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
The idea behind it, is that all devm_ calls in ST sensors are bound to the
parent device object.
However, the reference to that object is kept on both the st_sensor_data
struct and the IIO object parent (indio_dev->dev.parent).
This change only adds a bit consistency and uses the reference stored on
indio_dev->dev.parent, to enforce the assumption that all ST sensors' devm_
calls are bound to the same reference as the one store on st_sensor_data.
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Alexandru Ardelean <aardelean@deviqon.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210823112204.243255-6-aardelean@deviqon.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
At this point all ST driver remove functions do iio_device_unregister().
This change removes them from them and replaces all iio_device_register()
with devm_iio_device_register().
This can be done in a single change relatively easy, since all these remove
functions are define in st_sensors.h.
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Alexandru Ardelean <aardelean@deviqon.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210823112204.243255-5-aardelean@deviqon.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This change converts the st_sensors_power_enable() function to use
devm_add_action_or_reset() handlers to register regulator_disable hooks for
when the drivers get unloaded.
The parent device of the IIO device object is used. This is based on the
assumption that all other devm_ calls in the ST sensors use this reference.
This makes the st_sensors_power_disable() un-needed.
Removing this also changes unload order a bit, as all ST drivers would call
st_sensors_power_disable() first and iio_device_unregister() after that.
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Alexandru Ardelean <aardelean@deviqon.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210823112204.243255-4-aardelean@deviqon.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This change converts the st_sensors_allocate_trigger() to use
device-managed functions.
The parent device of the IIO device object is used. This is based on the
assumption that all other devm_ calls in the ST sensors use this reference.
That makes the st_sensors_deallocate_trigger() function un-needed, so it
can be removed.
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Alexandru Ardelean <aardelean@deviqon.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210823112204.243255-3-aardelean@deviqon.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Up until commit ea7e586bdd ("iio: st_sensors: move regulator retrieveal
to core") only the ST pressure driver seems to have had any regulator
disable. After that commit, the regulator handling was moved into the
common st_sensors logic.
In all instances of this regulator handling, the regulators were disabled
before unregistering the IIO device.
This can cause issues where the device would be powered down and still be
available to userspace, allowing it to send invalid/garbage data.
This change moves the st_sensors_power_disable() after the common probe
functions. These common probe functions also handle unregistering the IIO
device.
Fixes: 774487611c ("iio: pressure-core: st: Provide support for the Vdd power supply")
Fixes: ea7e586bdd ("iio: st_sensors: move regulator retrieveal to core")
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Denis CIOCCA <denis.ciocca@st.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Alexandru Ardelean <aardelean@deviqon.com>
Link: https://lore.kernel.org/r/20210823112204.243255-2-aardelean@deviqon.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Switch to devm_iio_device_register to finalize devm migration.
This removes the use for iio_device_unregister() and since
mutex_destroy() is not necessary here, remove it altogether.
Signed-off-by: Liam Beguin <lvb@xiphos.com>
Link: https://lore.kernel.org/r/20210815213309.2847711-6-liambeguin@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Update bindings to describe support for buffered and unbuffered external
voltage references selection, and add adi,internal-ref-microvolt for
internal voltage reference selection.
Signed-off-by: Liam Beguin <lvb@xiphos.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210815213309.2847711-5-liambeguin@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Add support for selecting the voltage reference from the devicetree.
This change is required to get valid readings with all three
vref hardware configurations supported by the ADC.
For instance if the ADC isn't provided with an external reference,
the sample request must specify an internal voltage reference to get a
valid reading.
Signed-off-by: Liam Beguin <lvb@xiphos.com>
Link: https://lore.kernel.org/r/20210815213309.2847711-4-liambeguin@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This driver supports devices with 14-bit and 16-bit sample sizes.
This implies different SPI transfer lengths which are not always handled
properly by some SPI controllers.
To work around this limitation, define a big endian buffer used to split
the buffer into two 8-bit messages in the event that the controller
doesn't support 14-bit or 16-bit transfers.
A separate buffer is introduced here to avoid performing operations on
types of different endianness.
Since all transfers use the same bits_per_word value, move that logic to
the probe function, and let transfers default to the value defined in
the struct spi_device.
Signed-off-by: Liam Beguin <lvb@xiphos.com>
Link: https://lore.kernel.org/r/20210815213309.2847711-3-liambeguin@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
strcpy() performs no bounds checking on the destination buffer. This
could result in linear overflows beyond the end of the buffer, leading
to all kinds of misbehaviors. So, remove all the uses and add
devm_kstrdup() or devm_kasprintf() instead.
Also, modify the "for" loop conditions to clarify the access to the
st->orientation.rotation buffer.
This patch is an effort to clean up the proliferation of str*()
functions in the kernel and a previous step in the path to remove
the strcpy function from the kernel entirely [1].
[1] https://github.com/KSPP/linux/issues/88
Signed-off-by: Len Baker <len.baker@gmx.com>
Link: https://lore.kernel.org/r/20210815174204.126593-1-len.baker@gmx.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
- Add missing fields and remove some duplicate fields when printing a perf_event_attr.
- Fix hybrid config terms list corruption.
- Update kernel header copies, some resulted in new kernel features being
automagically added to 'perf trace' syscall/tracepoint argument id->string translators.
- Add a file generated during the documentation build to .gitignore.
- Add an option to build without libbfd, as some distros, like Debian consider
its ABI unstable.
- Add support to print a textual representation of IBS raw sample data in 'perf report'.
- Fix bpf 'perf test' sample mismatch reporting
- Fix passing arguments to stackcollapse report in a 'perf script' python script.
- Allow build-id with trailing zeros.
- Look for ImageBase in PE file to compute .text offset.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-tools-for-v5.15-2021-09-11' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
Pull more perf tools updates from Arnaldo Carvalho de Melo:
- Add missing fields and remove some duplicate fields when printing a
perf_event_attr.
- Fix hybrid config terms list corruption.
- Update kernel header copies, some resulted in new kernel features
being automagically added to 'perf trace' syscall/tracepoint argument
id->string translators.
- Add a file generated during the documentation build to .gitignore.
- Add an option to build without libbfd, as some distros, like Debian
consider its ABI unstable.
- Add support to print a textual representation of IBS raw sample data
in 'perf report'.
- Fix bpf 'perf test' sample mismatch reporting
- Fix passing arguments to stackcollapse report in a 'perf script'
python script.
- Allow build-id with trailing zeros.
- Look for ImageBase in PE file to compute .text offset.
* tag 'perf-tools-for-v5.15-2021-09-11' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: (25 commits)
tools headers UAPI: Update tools's copy of drm.h headers
tools headers UAPI: Sync drm/i915_drm.h with the kernel sources
tools headers UAPI: Sync linux/fs.h with the kernel sources
tools headers UAPI: Sync linux/in.h copy with the kernel sources
perf tools: Add an option to build without libbfd
perf tools: Allow build-id with trailing zeros
perf tools: Fix hybrid config terms list corruption
perf tools: Factor out copy_config_terms() and free_config_terms()
perf tools: Fix perf_event_attr__fprintf() missing/dupl. fields
perf tools: Ignore Documentation dependency file
perf bpf: Provide a weak btf__load_from_kernel_by_id() for older libbpf versions
tools include UAPI: Update linux/mount.h copy
perf beauty: Cover more flags in the move_mount syscall argument beautifier
tools headers UAPI: Sync linux/prctl.h with the kernel sources
tools include UAPI: Sync sound/asound.h copy with the kernel sources
tools headers UAPI: Sync linux/kvm.h with the kernel sources
tools headers UAPI: Sync x86's asm/kvm.h with the kernel sources
perf report: Add support to print a textual representation of IBS raw sample data
perf report: Add tools/arch/x86/include/asm/amd-ibs.h
perf env: Add perf_env__cpuid, perf_env__{nr_}pmu_mappings
...
- Remove DEFINE_SMP_CALL_CACHE_FUNCTION() which is a left over of the
original hotplug code and now causing trouble with the ARM64 cache
topology setup due to the pointless SMP function call. It's not longer
required as the hotplug callbacks are guaranteed to be invoked on the
upcoming CPU.
- Remove the deprecated and now unused CPU hotplug functions
- Rewrite the CPU hotplug API documentation
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Merge tag 'smp-urgent-2021-09-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull CPU hotplug updates from Thomas Gleixner:
"Updates for the SMP and CPU hotplug:
- Remove DEFINE_SMP_CALL_CACHE_FUNCTION() which is a left over of the
original hotplug code and now causing trouble with the ARM64 cache
topology setup due to the pointless SMP function call.
It's not longer required as the hotplug callbacks are guaranteed to
be invoked on the upcoming CPU.
- Remove the deprecated and now unused CPU hotplug functions
- Rewrite the CPU hotplug API documentation"
* tag 'smp-urgent-2021-09-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
Documentation: core-api/cpuhotplug: Rewrite the API section
cpu/hotplug: Remove deprecated CPU-hotplug functions.
thermal: Replace deprecated CPU-hotplug functions.
drivers: base: cacheinfo: Get rid of DEFINE_SMP_CALL_CACHE_FUNCTION()
Here is a single patch for 5.15-rc1, for the lkdtm misc driver.
It resolves a build issue that many people were hitting with your
current tree, and Kees and others felt would be good to get merged
before -rc1 comes out, to prevent them from having to constantly hit it
as many development trees restart on -rc1, not older -rc releases.
It has NOT been in linux-next, but has passed 0-day testing and looks
"obviously correct" when reviewing it locally :)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.15-rc1-lkdtm' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull misc driver fix from Greg KH:
"Here is a single patch for 5.15-rc1, for the lkdtm misc driver.
It resolves a build issue that many people were hitting with your
current tree, and Kees and others felt would be good to get merged
before -rc1 comes out, to prevent them from having to constantly hit
it as many development trees restart on -rc1, not older -rc releases.
It has NOT been in linux-next, but has passed 0-day testing and looks
'obviously correct' when reviewing it locally :)"
* tag 'char-misc-5.15-rc1-lkdtm' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
lkdtm: Use init_uts_ns.name instead of macros
Nothing bug, but probably needs to go in.
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Merge tag 'for-linus-5.15-1' of git://github.com/cminyard/linux-ipmi
Pull IPMI updates from Corey Minyard:
"A couple of very minor fixes for style and rate limiting.
Nothing big, but probably needs to go in"
* tag 'for-linus-5.15-1' of git://github.com/cminyard/linux-ipmi:
char: ipmi: use DEVICE_ATTR helper macro
ipmi: rate limit ipmi smi_event failure message