After commit b8a1a4cd5a ("i2c: Provide a temporary .probe_new()
call-back type"), all drivers being converted to .probe_new() and then
03c835f498 ("i2c: Switch .probe() to not take an id parameter") convert
back to (the new) .probe() to be able to eventually drop .probe_new() from
struct i2c_driver.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230524151646.486847-2-u.kleine-koenig@pengutronix.de
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Here is the "big" set of char/misc and other driver subsystems for
6.4-rc1.
It's pretty big, but due to the removal of pcmcia drivers, almost breaks
even for number of lines added vs. removed, a nice change.
Included in here are:
- removal of unused PCMCIA drivers (finally!)
- Interconnect driver updates and additions
- Lots of IIO driver updates and additions
- MHI driver updates
- Coresight driver updates
- NVMEM driver updates, which required some OF updates
- W1 driver updates and a new maintainer to manage the subsystem
- FPGA driver updates
- New driver subsystem, CDX, for AMD systems
- lots of other small driver updates and additions
All of these 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 'char-misc-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc drivers updates from Greg KH:
"Here is the "big" set of char/misc and other driver subsystems for
6.4-rc1.
It's pretty big, but due to the removal of pcmcia drivers, almost
breaks even for number of lines added vs. removed, a nice change.
Included in here are:
- removal of unused PCMCIA drivers (finally!)
- Interconnect driver updates and additions
- Lots of IIO driver updates and additions
- MHI driver updates
- Coresight driver updates
- NVMEM driver updates, which required some OF updates
- W1 driver updates and a new maintainer to manage the subsystem
- FPGA driver updates
- New driver subsystem, CDX, for AMD systems
- lots of other small driver updates and additions
All of these have been in linux-next for a while with no reported
issues"
* tag 'char-misc-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (196 commits)
mcb-lpc: Reallocate memory region to avoid memory overlapping
mcb-pci: Reallocate memory region to avoid memory overlapping
mcb: Return actual parsed size when reading chameleon table
kernel/configs: Drop Android config fragments
virt: acrn: Replace obsolete memalign() with posix_memalign()
spmi: Add a check for remove callback when removing a SPMI driver
spmi: fix W=1 kernel-doc warnings
spmi: mtk-pmif: Drop of_match_ptr for ID table
spmi: pmic-arb: Convert to platform remove callback returning void
spmi: mtk-pmif: Convert to platform remove callback returning void
spmi: hisi-spmi-controller: Convert to platform remove callback returning void
w1: gpio: remove unnecessary ENOMEM messages
w1: omap-hdq: remove unnecessary ENOMEM messages
w1: omap-hdq: add SPDX tag
w1: omap-hdq: allow compile testing
w1: matrox: remove unnecessary ENOMEM messages
w1: matrox: use inline over __inline__
w1: matrox: switch from asm to linux header
w1: ds2482: do not use assignment in if condition
w1: ds2482: drop unnecessary header
...
Here is the large set of staging driver updates for 6.4-rc1. Once
again, we removed more code than was added, a nice trend.
It was a calm cycle, mostly all just small coding style cleanups,
included in here are:
- removal of the greybus loopback testing tools, userspace code that
didn't belong in a driver subdirectory and was causing problems for
some build systems
- platform remove callback cleanups
- rtl8192e huge cleanups
- other small staging driver cleanups.
All of these have been in linux-next for a while with no reported
problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging driver updates from Greg KH:
"Here is the large set of staging driver updates for 6.4-rc1. Once
again, we removed more code than was added, a nice trend.
It was a calm cycle, mostly all just small coding style cleanups,
included in here are:
- removal of the greybus loopback testing tools, userspace code that
didn't belong in a driver subdirectory and was causing problems for
some build systems
- platform remove callback cleanups
- rtl8192e huge cleanups
- other small staging driver cleanups.
All of these have been in linux-next for a while with no reported
problems"
* tag 'staging-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (185 commits)
staging: rtl8192e: Fix W_DISABLE# does not work after stop/start
staging: rtl8192e: Remove unchanged variables bfsync_processing and more
staging: rtl8192e: Remove unchanged variable frame_sync_monitor
staging: rtl8192e: Remove unchanged variable chan_forced
staging: rtl8192e: Remove set to true while true of bfirst_after_down
staging: rtl8192e: Remove second initialization of bActuallySet
staging: rtl8192e: Remove unused macro RT_SET_PS_LEVEL
staging: rtl8192e: Remove unused function rtl92e_disable_nic
staging: rtl8192e: Remove unchanged variable RegRfPsLevel
staging: rtl8172: Add blank lines after declarations
staging: rtl8192e: Remove unused variable RF_Type
staging: rtl8192e: Remove one of two checks for hardware RTL8192SE
staging: rtl8192e: Remove unused function _rtl92e_dm_init_wa_broadcom_iot
staging: rtl8192e: Remove macro IS_HARDWARE_TYPE_8192SE
staging: greybus: drop loopback test files
staging: rtl8192e: Add blank lines after declarations
staging: rtl8192e: avoid CamelCase <dot11RSNAStatsCCMPDecryptErrors>
staging: rtl8192e: avoid CamelCase <dot11RSNAStatsCCMPReplays>
staging: rtl8192e: avoid CamelCase <dot11RSNAStatsCCMPFormatErrors>
staging: rtl8192e: fix alignment to match open parenthesis
...
With linux/acpi.h no longer implicitly including of.h, add an explicit
include of of.h to fix the following error:
drivers/staging/iio/resolver/ad2s1210.c:706:21: error: implicit declaration of function 'of_match_ptr' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This driver is so far from making correct use of the IIO infrastructure
and ABI that if someone wanted to make the driver suitable for moving
out of staging, they would more or less be starting from scratch.
As such there is little point in keeping the existing code in staging.
Note this was only user of the meter.h header so that is dropped.
There are no other drivers in the staging/iio/meter directory so drop
the build system files as well.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Link: https://lore.kernel.org/r/20230129160805.747745-1-jic23@kernel.org
Call '__adis_initial_startup()' instead of its locked variant in
'adis16240_probe()'.
The locks are not needed at this point.
Signed-off-by: Ramona Bolboaca <ramona.bolboaca@analog.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20221122082757.449452-9-ramona.bolboaca@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Call '__adis_initial_startup()' instead of its locked variant in
'adis16203_probe()'.
The locks are not needed at this point.
Signed-off-by: Ramona Bolboaca <ramona.bolboaca@analog.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20221122082757.449452-8-ramona.bolboaca@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
The probe function doesn't make use of the i2c_device_id * parameter so it
can be trivially converted.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20221118224540.619276-569-uwe@kleine-koenig.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
.probe_new() doesn't get the i2c_device_id * parameter, so determine
that explicitly in the probe function.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20221118224540.619276-568-uwe@kleine-koenig.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
.probe_new() doesn't get the i2c_device_id * parameter, so determine
that explicitly in the probe function.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20221118224540.619276-567-uwe@kleine-koenig.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Replace ternary operator by simple if based evaluation of the return
value. Issue identified using coccicheck.
Signed-off-by: Deepak R Varma <drv@mailo.com>
Link: https://lore.kernel.org/r/Y3CAdCa17WdWDYUa@qemulion
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Improve code readability by merging unnecessary split lines that are
well within the code-style guidelines post merge.
Signed-off-by: Deepak R Varma <drv@mailo.com>
Acked-by: Julia Lawall <julia.lawall@inria.fr>
Link: https://lore.kernel.org/r/Y0z2/qFe3kW96MTs@debian-BULLSEYE-live-builder-AMD64
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
____cacheline_aligned is an insufficient guarantee for non-coherent DMA
on platforms with 128 byte cachelines above L1. Switch to the updated
IIO_DMA_MINALIGN definition. Whilst here, move the marking to cover
the whole union. That has no functional affect, but makes it slightly
easier to see what is going on.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220813160600.1157169-1-jic23@kernel.org
____cacheline_aligned is an insufficient guarantee for non-coherent DMA
on platforms with 128 byte cachelines above L1. Switch to the updated
IIO_DMA_MINALIGN definition. As the tx[] an rx[] buffers are only used
in the same SPI exchanges, we should be safe with them on the same cacheline.
Hence only mark the first one __aligned(IIO_DMA_MINALIGN).
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220807151218.656881-5-jic23@kernel.org
____cacheline_aligned is an insufficient guarantee for non-coherent DMA
on platforms with 128 byte cachelines above L1. Switch to the updated
IIO_DMA_MINALIGN definition.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com>
Link: https://lore.kernel.org/r/20220807151218.656881-4-jic23@kernel.org
____cacheline_aligned is an insufficient guarantee for non-coherent DMA
on platforms with 128 byte cachelines above L1. Switch to the updated
IIO_DMA_MINALIGN definition.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220807151218.656881-3-jic23@kernel.org
All known major issues with this driver resolved so time to move
it out of staging. This also allows us to remove the now empty
staging/iio/cdc directory and build files.
Note this cleanup work was done using the roadtest framework.
https://lore.kernel.org/all/20220311162445.346685-1-vincent.whitchurch@axis.com/
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Switch over to the IIO core handling for _available attributes
making them available for in kernel users and enforcing correct
naming etc automatically.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220626122938.582107-14-jic23@kernel.org
As this offset is applied equally to both lines of the differential
pair, _ofset should not be used. Use the new ABI _zeropoint instead
to avoid userspace software applying this value when calculating
real value = (_raw + _offset) * _scale
Also add a comment to explain why an offset of 0x800000 is applied
within the driver rather than exposed to userspace.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220626122938.582107-13-jic23@kernel.org
Performing the maths to rescale a 24 bit raw reading within the driver
was resulting in precision losses. So make that userspace's problem
by exporting the scale and letting the maths be done in userspace with
appropriate precision. Issue identified using roadtester testing
framework.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220626122938.582107-11-jic23@kernel.org
As the comment states, this was only used in remove() and now
there is no explicit remove() function to make use of it.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220626122938.582107-10-jic23@kernel.org
Instead of encoding several different fields into chan->address use
an indirection to a separate per channel structure where the various
fields can be expressed in a more readable form. This also allows
the register values to be constructed at runtime using FIELD_PREP().
Drop the now redundant _SHIFT macros.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220626122938.582107-9-jic23@kernel.org
Not all paths require any locking at all. So to simplify the
removal of such locking push the locks down into the individual
case statements.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220626122938.582107-8-jic23@kernel.org
I2C does not require DMA safe buffers so there is no need to ensure
the buffers are in their own cacheline. Hence simplify things by
using a local variable instead of embedding the buffer in the chip
info structure.
Includes a trivial whitespace cleanup to drop a line between function
and error handling.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220626122938.582107-6-jic23@kernel.org
The supply voltage is attenuated by 6 before being fed to the ADC.
Handle this explicitly rather than pre-multiplying the _raw value by 6.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220626122938.582107-5-jic23@kernel.org
Chance from fiddly local implementation of be24 to cpu endian conversion
by reading into a 3 byte buffer and using get_unaligned_be24()
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220626122938.582107-4-jic23@kernel.org
Variable negative is being assigned a value that is never read, it is
being re-assigned later. The assignment is redundant and can be removed.
Cleans up clang scan build warning:
drivers/staging/iio/resolver/ad2s1210.c:502:3: warning: Value stored
to 'negative' is never read [deadcode.DeadStores]
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://lore.kernel.org/r/20220418134603.81336-1-colin.i.king@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
strtobool() is deprecated and just a wrapper around kstrtobool().Replace
it with kstrtobool() so the deprecated function can be removed eventually.
Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220409105812.2113895-1-lars@metafoo.de
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Among all the users of the kfifo buffers, no one uses the
INDIO_BUFFER_HARDWARE mode. So let's take this as a general rule and
simplify a little bit the internals - overall the documentation - by
eliminating unused specific cases. Use the INDIO_BUFFER_SOFTWARE mode by
default with kfifo buffers, which will basically mimic what all the "non
direct" modes do.
Cc: Benson Leung <bleung@chromium.org>
Cc: Guenter Roeck <groeck@chromium.org>
Cc: Jyoti Bhayana <jbhayana@google.com>
Cc: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com>
Cc: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
Cc: Michael Hennerich <Michael.Hennerich@analog.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/r/20220207143840.707510-13-miquel.raynal@bootlin.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This is a rather unusual device (in IIO anyway). However, it has
a near to standard userspace ABI.
Note the work to move this out of staging was done against a minimal
QEMU model, which doesn't model all the features of the device.
I have no intention to upstream the QEMU model as it was developed
just to enable this driver cleanup.
https://github.com/jic23/qemu/tree/ad7280a-hacks
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com>
Link: https://lore.kernel.org/r/20220206190328.333093-21-jic23@kernel.org
The datasheet provides timings for operating this device at up to 105
degrees centigrade. Adopt these more conservative timings.
Suggested-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com>
Link: https://lore.kernel.org/r/20220206190328.333093-20-jic23@kernel.org
Making the local storage of the Cell Balance mask a simple
bitmap and then shifting it only at time of register write simplifies
several code paths.
Suggested-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com>
Link: https://lore.kernel.org/r/20220206190328.333093-19-jic23@kernel.org
This functionality is intended to allow for a few temperature
sensors to be missing (and hence not worth reading) on the final
device in a chain. The ones removed are 3 and 5 (unlike for
the ADC channels where it is 4 and 5).
The datasheet includes a foot note 3 to Table 12 that makes this complex
to support.
"(3) To remove AUX5 or AUX5 and AUX3 from the alert detection, conversions
on three auxiliary ADC input channels only must be selected in the
control register."
This mode has never been supported by the driver.
As this support would be complex to add and the rework is being done
against a QEMU model developed for the purposes of verifying nothing
is broken, it is better to drop this support for now.
Reported-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com>
Link: https://lore.kernel.org/r/20220206190328.333093-16-jic23@kernel.org
Convert all the device specific info that was previously in platform data
over to generic firmware query interfaces.
dt-bindings to follow shortly.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com>
Link: https://lore.kernel.org/r/20220206190328.333093-15-jic23@kernel.org
We use this a few times already and it is about to get worse, so
introduce a local variable to simplify things.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com>
Link: https://lore.kernel.org/r/20220206190328.333093-14-jic23@kernel.org
Given the irq is optional, let us remove the interfaces related to
events when it is not present.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com>
Link: https://lore.kernel.org/r/20220206190328.333093-13-jic23@kernel.org
Drop used includes, add a few missing ones and reorder.
The include-what-you-use tool output was considered in making this
change.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com>
Link: https://lore.kernel.org/r/20220206190328.333093-12-jic23@kernel.org
Oversampling has nothing directly to do with analog circuits or
similar so belongs in the control of userspace as a policy decision.
The only complexity in here was that the acquisition time needs
updating if this setting is changed at runtime (as oversampling
is time consuming).
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com>
Link: https://lore.kernel.org/r/20220206190328.333093-11-jic23@kernel.org
IIO uses the
/*
* stuff
* more stuff
*/
multi-line style, so use that here as well.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com>
Link: https://lore.kernel.org/r/20220206190328.333093-10-jic23@kernel.org
The driver doesn't support buffered mode, so a timestamp channel that
is entirely hidden from userspace without buffer mode is rather pointless.
Drop it.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com>
Link: https://lore.kernel.org/r/20220206190328.333093-9-jic23@kernel.org
The *_balance_switch_en and *_balance_switch_timer attributes had non
standard prefixes. Use the ext_info framework to automatically
create then with in_voltageX-voltageY_ prefix.
Documentation for these two unusual attributes to follow.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com>
Link: https://lore.kernel.org/r/20220206190328.333093-8-jic23@kernel.org
This driver had a slightly non standard events ABI but there seems
to be no reason for not doing it with the core support for rising and
falling events on the two types of channels.
In theory the events on different daisy chained chips could be at
different levels, but the driver has never supported this and it doesn't
seem likely to be used so let us ignore that option.
Includes reordering so that we only set the software cached value
of the thresholds if the hardware write succeeds.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com>
Link: https://lore.kernel.org/r/20220206190328.333093-7-jic23@kernel.org
The write and two types of read transfer are sufficiently complex that
they benefit from the clarity of using FIELD_PREP() and FIELD_GET().
This also applies to the handling in ad7280_event_handler() so
use a similar approach there as well.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com>
Link: https://lore.kernel.org/r/20220206190328.333093-6-jic23@kernel.org
As the __cacheline_aligned will ensure that the first of these two buffers
is appropriate aligned, there is no need to keep them as a single array
which is confusing given the first element is always tx and the second
rx. Hence let us just have two parts and name them separately.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com>
Link: https://lore.kernel.org/r/20220206190328.333093-5-jic23@kernel.org
This avoids possible confusion with read back of the channel conversions.
These two types of reads are of difference sizes with resulting differences
in the data layout of the response from the hardware.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com>
Link: https://lore.kernel.org/r/20220206190328.333093-4-jic23@kernel.org
1. Postfix register addresses with _REG to distinguish them from
fields within the registers
2. Switch to using FIELD_PREP and masks to aid readability.
3. Shorten a few defines to make the lines remain a sensible length.
4. Fix an issue whether where an CTRL_LB field is set in CTRL_HB.
5. Fix wrong AUX1_3_4 which should be AUX_1_3_5 according to
table 14 in the datasheet.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com>
Link: https://lore.kernel.org/r/20220206190328.333093-3-jic23@kernel.org
Uwe Kleine-König