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Make the conversion to firmware agnostic device properties. As part of
the conversion the IIO inkern interface 'of_xlate()' is also converted to
'fwnode_xlate()'. The goal is to completely drop 'of_xlate' and hence OF
dependencies from IIO.
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220715122903.332535-12-nuno.sa@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Make the conversion to firmware agnostic device properties. As part of
the conversion the IIO inkern interface 'of_xlate()' is also converted to
'fwnode_xlate()'. The goal is to completely drop 'of_xlate' and hence OF
dependencies from IIO.
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220715122903.332535-11-nuno.sa@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Make the conversion to firmware agnostic device properties. As part of
the conversion the IIO inkern interface 'of_xlate()' is also converted to
'fwnode_xlate()'. The goal is to completely drop 'of_xlate' and hence OF
dependencies from IIO.
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20220715122903.332535-10-nuno.sa@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Make the conversion to firmware agnostic device properties. As part of
the conversion the IIO inkern interface 'of_xlate()' is also converted to
'fwnode_xlate()'. The goal is to completely drop 'of_xlate' and hence OF
dependencies from IIO.
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220715122903.332535-9-nuno.sa@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Move from 'of_xlate()' to 'fwnode_xlate()'. The end goal is to completely
drop OF from the IIO inkernel interface.
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220715122903.332535-8-nuno.sa@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Add runtime PM support by disabling/enabling ADC's peripheral clock.
On simple conversion the ADC's clock is kept enabled just while the
conversion is in progress. This includes also temperature conversion.
For triggered buffers and touch conversions the ADC clock is kept enabled
while the triggered buffers or touch are enabled. Along with it removed
the __maybe_unused on suspend() and resume() ops as the dev_pm_ops
object members are now filled with SYSTEM_SLEEP_PM_OPS().
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20220803102855.2191070-20-claudiu.beznea@microchip.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
The ADC on SAMA7G5 has a dedicated channel (channel 31) for measuring
in-SoC temperature. 2 inputs are multiplexed on channel 31, VTEMP and
VBG as follows:
`
| \ +-----+
VBG --->| | ch31 | |
Vtemp --->| |----->| ADC |
| / | |
| / +-----+
.
where:
- VTEMP is proportional to the absolute temperature voltage
- VBG is a quasi-temperature independent voltage
Both VBG and VTEMP are needed to determine the correct in-SoC
temperature. At a moment of time only one of these could be measured, the
selection being done with bit SRCLCH bit of ACR register. The formula to
calculate the temperature is as follows:
P1 + (Vref * (VTEMP - P6 - P4 * VBG)) / (VBG * VTEMP_DT)
where:
- P1, P4, P6 are calibration data retrieved from OTP memory
- Vref is the reference voltage for ADC
- VTEMP_DT is the voltage sensitivity to temperature and is constant
- VTEMP, VBG are the measured values from channel 31
For better resolution before reading the temperature certain settings
for oversampling ratio, sample frequency, EMR.TRACKX, MR.TRACKTIM are
applied. The initial settings are reapplied at the end of temperature
reading.
Current support is not integrated with trigger buffers channel 31 not
being enabled/disabled in functions at91_adc_buffer_prepare(),
at91_adc_buffer_postdisable() thus the conversion for channel 31 is not
done in case trigger buffers are enabled. In case of trigger buffers are
enabled and temperature requests are received in the driver though
at91_adc_read_temp() the at91_adc_read_temp() will return with an error
code.
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20220803102855.2191070-18-claudiu.beznea@microchip.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Remove iio_device_{claim, release}_direct_mode() and lock/unlock to
&st->lock from at91_adc_read_info_raw(). Instead add a wrapper around
at91_adc_read_info_raw() and do there the lock/unlock. This will allow
using the at91_adc_read_info_raw() in patch that add support for
temperature sensor.
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20220803102855.2191070-16-claudiu.beznea@microchip.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Add startup and tracktim as parameter for at91_adc_setup_samp_freq()
function. In case of temperature sensor being enabled these parameters
will be configured on temperature read request to improve the accuracy
of the read temperature.
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20220803102855.2191070-15-claudiu.beznea@microchip.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Add support for updating trackx bits of EMR register. Having different
values of EMR.TRACKX when measuring temperature give a better accuracy.
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20220803102855.2191070-14-claudiu.beznea@microchip.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
ADC captures data on 12 bits (if oversampling is not enabled). When using
oversampling captured data could go up to 14 bits for SAMA5D2 or up to
16 bits for SAMA7G5 (depending on oversampling settings). All the channels
that are subject of oversampling are registered as 14 or 16 real bits.
Depending on the oversampling settings the ADC converted value need to be
shifted up to 14 or 16 to cope with realbits value registered to IIO
subsystem. Commit adds platform specific information to know if we
run on a system with up to 14 or 16 bits ADC converted data.
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20220803102855.2191070-11-claudiu.beznea@microchip.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Add .read_avail() to chan_info ops which will retrieve the available
oversampling ratio.
Suggested-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20220803102855.2191070-10-claudiu.beznea@microchip.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Drop AT91_OSR_1SAMPLES, AT91_OSR_4SAMPLES, AT91_OSR_16SAMPLES defines
and insted use their values inline.
Suggested-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20220803102855.2191070-9-claudiu.beznea@microchip.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Oversampling values are checked anyway in at91_adc_emr_config(). Remove
the checking of these from at91_adc_write_raw() and return -EINVAL
instead in at91_adc_emr_config().
Suggested-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20220803102855.2191070-8-claudiu.beznea@microchip.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
SAMA7G5 introduces 64 and 256 oversampling rates. Due to this EMR.OSR is 3
bits long. Change the code to reflect this. Commit prepares the code
for the addition of 64 and 256 oversampling rates.
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20220803102855.2191070-7-claudiu.beznea@microchip.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
When buffers are enabled conversion may start asynchronously thus
allowing changes on actual hardware could lead to bad behavior. Thus
do not allow changing oversampling ratio and sample frequency when
if iio_device_claim_direct_mode() returns with error.
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20220803102855.2191070-6-claudiu.beznea@microchip.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
In case triggered buffers are enabled while system is suspended they will
not work anymore after resume. For this call at91_adc_buffer_postdisable()
on suspend and at91_adc_buffer_prepare() on resume. On tests it has been
seen that at91_adc_buffer_postdisable() call is not necessary but it has
been kept because it also does the book keeping for DMA. On resume path
there is no need to call at91_adc_configure_touch() as it is embedded in
at91_adc_buffer_prepare().
Fixes: 073c662017 ("iio: adc: at91-sama5d2_adc: add support for DMA")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20220803102855.2191070-5-claudiu.beznea@microchip.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
.read_raw()/.write_raw() could be called asynchronously from user space
or other in kernel drivers. Without locking on st->lock these could be
called asynchronously while there is a conversion in progress. Read will
be harmless but changing registers while conversion is in progress may
lead to inconsistent results. Thus, to avoid this lock st->lock.
Fixes: 27e1771908 ("iio:adc:at91_adc8xx: introduce new atmel adc driver")
Fixes: 6794e23fa3 ("iio: adc: at91-sama5d2_adc: add support for oversampling resolution")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20220803102855.2191070-4-claudiu.beznea@microchip.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Check return status of at91_adc_read_position() and
at91_adc_read_pressure() in at91_adc_read_info_raw().
Fixes: 6794e23fa3 ("iio: adc: at91-sama5d2_adc: add support for oversampling resolution")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20220803102855.2191070-3-claudiu.beznea@microchip.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
All ADC HW versions handled by this driver (SAMA5D2, SAM9X60, SAMA7G5)
have MR.TRACKTIM on 4 bits. Fix AT91_SAMA5D2_MR_TRACKTIM_MAX to reflect
this.
Fixes: 27e1771908 ("iio:adc:at91_adc8xx: introduce new atmel adc driver")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20220803102855.2191070-2-claudiu.beznea@microchip.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Add Richtek rtq6056 supporting.
It can be used for the system to monitor load current and power with 16-bit
resolution.
Signed-off-by: ChiYuan Huang <cy_huang@richtek.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/1658242365-27797-3-git-send-email-u0084500@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
If the ADC vref regulator returns an error, for example, if CONFIG_REGULATOR
is not set, the error will be used as a reference voltage.
Introduce a guard for negative return values instead of unconditionally
casting it to u32.
Acked-by: Haibo Chen <haibo.chen@nxp.com>
Signed-off-by: Martin Larsson <martin.larsson@actia.se>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Link: https://lore.kernel.org/r/20220720153136.3502440-1-martin.larsson@actia.se
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
If max1027_wait_eoc() fails then call iio_device_release_direct_mode()
before returning.
Fixes: a0e831653e ("iio: adc: max1027: Introduce an end of conversion helper")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/YsbztVuAXnau2cIZ@kili
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Switching to these newer macros allows the compiler to remove
the unused functions and struct dev_pm_ops if !CONFIG_PM without
the need to mark anything __maybe_unused.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Cai Huoqing <cai.huoqing@linux.dev>
Reviewed-by: Haibo Chen <haibo.chen@nxp.com>
Reviewed-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20220621202719.13644-28-jic23@kernel.org
Using these newer macros allows the compiler to remove the unused
structure and functions when !CONFIG_PM_SLEEP + removes the need to
mark pm functions __maybe_unused.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20220621202719.13644-10-jic23@kernel.org
Using these newer macros allows the compiler to remove the unused
structure and functions when !CONFIG_PM_SLEEP + removes the need to
mark pm functions __maybe_unused.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20220621202719.13644-9-jic23@kernel.org
Using these newer macros allows the compiler to remove the unused
structure and functions when !CONFIG_PM_SLEEP + removes the need to
mark pm functions __maybe_unused. This one is a little unusual as
no suspend callback, but the cleanup is still worthwhile (and eventual
aim is to get rid of old macro).
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Philippe Schenker <philippe.schenker@toradex.com>
Reviewed-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20220621202719.13644-8-jic23@kernel.org
Using these newer macros allows the compiler to remove the unused
structure and functions when !CONFIG_PM_SLEEP + removes the need to
mark pm functions __maybe_unused.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Zhiyong Tao <zhiyong.tao@mediatek.com>
Cc: Hui Liu <hui.liu@mediatek.com>
Reviewed-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20220621202719.13644-7-jic23@kernel.org
Using these newer macros allows the compiler to remove the unused
structure and functions when !CONFIG_PM_SLEEP + removes the need to
mark pm functions __maybe_unused.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20220621202719.13644-6-jic23@kernel.org
In this case we only gain the ability to have the compiler drop the
struct dev_pm_ops because the callbacks are called from paths other
than suspend and resume. In general the purpose of this new macro
is to allow automated removal of the callbacks as well, but that doesn't
apply here.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Haibo Chen <haibo.chen@nxp.com>
Reviewed-by: Haibo Chen <haibo.chen@nxp.com>
Reviewed-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20220621202719.13644-5-jic23@kernel.org
Using these newer macros allows the compiler to remove the unused
structure and functions when !CONFIG_PM_SLEEP + removes the need to
mark pm functions __maybe_unused.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Eugen Hristev <eugen.hristev@microchip.com>
Cc: Nicolas Ferre <nicolas.ferre@microchip.com>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Ludovic Desroches <ludovic.desroches@microchip.com>
Reviewed-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20220621202719.13644-4-jic23@kernel.org
Using these newer macros allows the compiler to remove the unused
structure and functions when !CONFIG_PM_SLEEP + removes the need to
mark pm functions __maybe_unused.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Reviewed-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20220621202719.13644-3-jic23@kernel.org
Adding ADC NPCM8XX support to NPCM ADC driver.
ADC NPCM8XX uses a different resolution and voltage reference.
As part of adding NPCM8XX support:
- Add NPCM8XX specific compatible string.
- Add data to handle architecture-specific ADC parameters.
Signed-off-by: Tomer Maimon <tmaimon77@gmail.com>
Link: https://lore.kernel.org/r/20220713132640.215916-3-tmaimon77@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Several on-running cleanup efforts dominate this time, plus the DMA
safety alignment issue identified due to improved understanding of
the restrictions as a result of Catalin Marinas' efforts in that area.
One immutable branch in here due to MFD and SPMI elements needed for
the qcom-rradc driver.
Device support
* bmi088
- Add support for bmi085 (accelerometer part of IMU)
- Add support for bmi090l (accelerometer part of IMU)
* mcp4922
- Add support for single channel device MCP4921
* rzg2l-adc
- Add compatible and minor tweaks to support RZ/G2UL ADC
* sca3300
- Add support for scl3300 including refactoring driver to support
multiple device types and cleanup noticed whilst working on driver.
* spmi-rradc
- New driver for Qualcomm SPMI Round Robin ADC including necessary
additional utility functions in SPMI core and related MFD driver.
* ti-dac55781
- Add compatible for DAC121C081 which is very similar to existing parts.
Features
* core
- Warn on iio_trigger_get() on an unregistered IIO trigger.
* bma400
- Triggered buffer support
- Activity and step counting
- Misc driver improvements such as devm and header ordering
* cm32181
- Add PM support.
* cros_ec
- Sensor location support
* sx9324
- Add precharge resistor setting
- Add internal compensation resistor setting
- Add CS idle/sleep mode.
* sx9360
- Add precharge resistor setting
* vl53l0x
- Handle reset GPIO, regulator and relax handling of irq type.
Cleanup and minor fixes:
Treewide changes
- Cleanup of error handling in remove functions in many drivers.
- Update dt-binding maintainers for a number of ADI bindings.
- Several sets of conversion of drivers from device tree specific to
generic device properties. Includes fixing up various related
header and Kconfig issues.
- Drop include of of.h from iio.h and fix up drivers that need to include
it directly.
- More moves of clusters of drivers into appropriate IIO_XXX namespaces.
- Tree wide fix of a long running bug around DMA safety requirements.
IIO was using __cacheline_aligned to pad iio_priv() structures. This
worked for a long time by coincidence, but correct alignment is
ARCH_KMALLOC_MINALIGN. As there is activity around this area, introduce
an IIO local IIO_DMA_MINALIGN to allow for changing it in one place rather
than every driver in future. Note, there have been no reports of this
bug in the wild, and it may not happen on any platforms supported by
upstream, so no rush to backport these fixes.
Other cleanup
* core
- Switch to ida_alloc()/free()
- Drop unused iio_get_time_res()
- Octal permissions and DEVICE_ATTR_* macros.
- Cleanup bared unsigned usage.
* MAINTAINERS
- Add include/dt-bindings/iio/ to the main IIO entry.
* ad5380
- Comment syntax fix.
* ad74413r
- Call to for_each_set_bit_from(), with from value as 0 replaced.
* ad7768-1
- Drop explicit setting of INDIO_BUFFER_TRIGGERED as now done by the core.
* adxl345
- Fix wrong address in dt-binding example.
* adxl367
- Drop extra update of FIFO watermark.
* at91-sama5d2
- Limit requested watermark to the hwfifo size.
* bmg160, bme680
- Typos
* cio-dac
- Switch to iomap rather than direct use of ioports
* kxsd9
- Replace CONFIG_PM guards with new PM macros that let the compiler
cleanly remove the unused code and structures when !CONFIG_PM
* lsm6dsx
- Use new pm_sleep_ptr() and EXPORT_SIMPLE_DEV_PM_OPS(). Then move
to Namespace.
* meson_saradc - general cleanup.
- Avoid attaching resources to iio_dev->dev
- Use same struct device for all error messages
- Convert to dev_err_probe() and use local struct device *dev to
reduce code complexity.
- Use devm_clk_get_optional() instead of hand rolling.
- Use regmap_read_poll_timeout() instead of hand rolling.
* mma7660
- Drop ACPI_PTR() use that is unhelpful.
* mpu3050
- Stop exporting symbols not used outside of module
- Switch to new DEFINE_RUNTIME_DEV_PM_OPS() macro and move to Namespace.
* ping
- Typo fix
* qcom-spmi-rradc
- Typo fix
* sc27xx
- Convert to generic struct u32_fract
* srf08
- Drop a redundant check on !val
* st_lsm6dsx
- Limit the requested watermark to the hwfifo size.
* stm32-adc
- Use generic_handle_domain_irq() instead of opencoding.
- Fix handling of ADC disable.
* stm32-dac
- Use str_enabled_disable() instead of open coding.
* stx104
- Switch to iomap rather than direct use of ioports
* tsc2046
- Drop explicit setting of INDIO_BUFFER_TRIGGERED as now done by the core.
* tsl2563
- Replace flush_scheduled_work() with cancel_delayed_work_sync()
- Replace cancel_delayed_work() with cancel_delayed_work_sync()
* vl53l0x
- Make the VDD regulator optional by allowing a dummy regulator.
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Merge tag 'iio-for-5.20a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into char-misc-next
Jonathan writes:
IIO new device support, features and minor fixes for 5.20
Several on-running cleanup efforts dominate this time, plus the DMA
safety alignment issue identified due to improved understanding of
the restrictions as a result of Catalin Marinas' efforts in that area.
One immutable branch in here due to MFD and SPMI elements needed for
the qcom-rradc driver.
Device support
* bmi088
- Add support for bmi085 (accelerometer part of IMU)
- Add support for bmi090l (accelerometer part of IMU)
* mcp4922
- Add support for single channel device MCP4921
* rzg2l-adc
- Add compatible and minor tweaks to support RZ/G2UL ADC
* sca3300
- Add support for scl3300 including refactoring driver to support
multiple device types and cleanup noticed whilst working on driver.
* spmi-rradc
- New driver for Qualcomm SPMI Round Robin ADC including necessary
additional utility functions in SPMI core and related MFD driver.
* ti-dac55781
- Add compatible for DAC121C081 which is very similar to existing parts.
Features
* core
- Warn on iio_trigger_get() on an unregistered IIO trigger.
* bma400
- Triggered buffer support
- Activity and step counting
- Misc driver improvements such as devm and header ordering
* cm32181
- Add PM support.
* cros_ec
- Sensor location support
* sx9324
- Add precharge resistor setting
- Add internal compensation resistor setting
- Add CS idle/sleep mode.
* sx9360
- Add precharge resistor setting
* vl53l0x
- Handle reset GPIO, regulator and relax handling of irq type.
Cleanup and minor fixes:
Treewide changes
- Cleanup of error handling in remove functions in many drivers.
- Update dt-binding maintainers for a number of ADI bindings.
- Several sets of conversion of drivers from device tree specific to
generic device properties. Includes fixing up various related
header and Kconfig issues.
- Drop include of of.h from iio.h and fix up drivers that need to include
it directly.
- More moves of clusters of drivers into appropriate IIO_XXX namespaces.
- Tree wide fix of a long running bug around DMA safety requirements.
IIO was using __cacheline_aligned to pad iio_priv() structures. This
worked for a long time by coincidence, but correct alignment is
ARCH_KMALLOC_MINALIGN. As there is activity around this area, introduce
an IIO local IIO_DMA_MINALIGN to allow for changing it in one place rather
than every driver in future. Note, there have been no reports of this
bug in the wild, and it may not happen on any platforms supported by
upstream, so no rush to backport these fixes.
Other cleanup
* core
- Switch to ida_alloc()/free()
- Drop unused iio_get_time_res()
- Octal permissions and DEVICE_ATTR_* macros.
- Cleanup bared unsigned usage.
* MAINTAINERS
- Add include/dt-bindings/iio/ to the main IIO entry.
* ad5380
- Comment syntax fix.
* ad74413r
- Call to for_each_set_bit_from(), with from value as 0 replaced.
* ad7768-1
- Drop explicit setting of INDIO_BUFFER_TRIGGERED as now done by the core.
* adxl345
- Fix wrong address in dt-binding example.
* adxl367
- Drop extra update of FIFO watermark.
* at91-sama5d2
- Limit requested watermark to the hwfifo size.
* bmg160, bme680
- Typos
* cio-dac
- Switch to iomap rather than direct use of ioports
* kxsd9
- Replace CONFIG_PM guards with new PM macros that let the compiler
cleanly remove the unused code and structures when !CONFIG_PM
* lsm6dsx
- Use new pm_sleep_ptr() and EXPORT_SIMPLE_DEV_PM_OPS(). Then move
to Namespace.
* meson_saradc - general cleanup.
- Avoid attaching resources to iio_dev->dev
- Use same struct device for all error messages
- Convert to dev_err_probe() and use local struct device *dev to
reduce code complexity.
- Use devm_clk_get_optional() instead of hand rolling.
- Use regmap_read_poll_timeout() instead of hand rolling.
* mma7660
- Drop ACPI_PTR() use that is unhelpful.
* mpu3050
- Stop exporting symbols not used outside of module
- Switch to new DEFINE_RUNTIME_DEV_PM_OPS() macro and move to Namespace.
* ping
- Typo fix
* qcom-spmi-rradc
- Typo fix
* sc27xx
- Convert to generic struct u32_fract
* srf08
- Drop a redundant check on !val
* st_lsm6dsx
- Limit the requested watermark to the hwfifo size.
* stm32-adc
- Use generic_handle_domain_irq() instead of opencoding.
- Fix handling of ADC disable.
* stm32-dac
- Use str_enabled_disable() instead of open coding.
* stx104
- Switch to iomap rather than direct use of ioports
* tsc2046
- Drop explicit setting of INDIO_BUFFER_TRIGGERED as now done by the core.
* tsl2563
- Replace flush_scheduled_work() with cancel_delayed_work_sync()
- Replace cancel_delayed_work() with cancel_delayed_work_sync()
* vl53l0x
- Make the VDD regulator optional by allowing a dummy regulator.
* tag 'iio-for-5.20a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (244 commits)
iio: adc: xilinx-xadc: Drop duplicate NULL check in xadc_parse_dt()
iio: adc: xilinx-xadc: Make use of device properties
iio: light: cm32181: Add PM support
iio: adc: ad778-1: do not explicity set INDIO_BUFFER_TRIGGERED mode
iio: adc: ti-tsc2046: do not explicity set INDIO_BUFFER_TRIGGERED mode
iio: adc: stm32-adc: disable adc before calibration
iio: adc: stm32-adc: make safe adc disable
iio: dac: ad5380: align '*' each line and drop unneeded blank line
iio: adc: qcom-spmi-rradc: Fix spelling mistake "coherrency" -> "coherency"
iio: Don't use bare "unsigned"
dt-bindings: iio: dac: mcp4922: expand for mcp4921 support
iio: dac: mcp4922: add support to mcp4921
iio: chemical: sps30: Move symbol exports into IIO_SPS30 namespace
iio: pressure: bmp280: Move symbol exports to IIO_BMP280 namespace
iio: imu: bmi160: Move exported symbols to IIO_BMI160 namespace
iio: adc: stm32-adc: Use generic_handle_domain_irq()
proximity: vl53l0x: Make VDD regulator actually optional
MAINTAINERS: add include/dt-bindings/iio to IIO SUBSYSTEM AND DRIVERS
dt-bindings: iio/accel: Fix adi,adxl345/6 example I2C address
iio: gyro: bmg160: Fix typo in comment
...
The fwnode_for_each_child_node() is NULL-aware, no need to check
its parameters outside. Drop duplicate NULL check in xadc_parse_dt().
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220531141118.64540-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Convert the module to be property provider agnostic and allow
it to be used on non-OF platforms.
Add mod_devicetable.h include.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/20220531141118.64540-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
The core sets INDIO_BUFFER_TRIGGERED as part of
devm_iio_triggered_buffer_setup().
Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de>
Link: https://lore.kernel.org/r/20220629203910.4836-1-marcus.folkesson@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
The calibration is launched from prepare callback.
The ADC state when entering this function may be unknown as the
ADC may have been left enabled by boot stage.
One prerequisite for ADC calibration is to have ADC in disabled state.
If the calibration is started when ADC is still enabled, the behavior is
unpredictable, and the calibration may fail with a timeout error.
Force ADC to disabled state in stm32h7_adc_selfcalib().
ADC enabling is ensured by stm32h7_adc_enable() call,
before leaving prepare callback.
Signed-off-by: Olivier Moysan <olivier.moysan@foss.st.com>
Reviewed-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Link: https://lore.kernel.org/r/20220620154738.801706-3-olivier.moysan@foss.st.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
From ADC reference manual the software is allowed to write the
control bit ADDIS of the ADC_CR register only if the ADC is enabled.
Return immediately from stm32h7_adc_disable() if ADC is already disabled.
Signed-off-by: Olivier Moysan <olivier.moysan@foss.st.com>
Reviewed-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Link: https://lore.kernel.org/r/20220620154738.801706-2-olivier.moysan@foss.st.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Most of these have been in next for a long time. Unfortunately there
was one stray patch in the branch (wasn't a fix), so I've just rebased
to remove that.
* testing
- Fix a missing MODULE_LICENSE() warning by restricting possible build
configs.
* Various drivers
- Fix ordering of iio_get_trigger() being called before
iio_trigger_register()
* adi,admv1014
- Fix dubious x & !y warning.
* adi,axi-adc
- Fix missing of_node_put() in error and normal paths.
* aspeed,adc
- Add missing of_node_put()
* fsl,mma8452
- Fix broken probing from device tree.
- Drop check on return value of i2c write to device to cause reset as
ACK will be missing (device reset before sending it).
* fsl,vf610
- Fix documentation of in_conversion_mode ABI.
* iio-trig-sysfs
- Ensure irq work has finished before freeing the trigger.
* invensense,mpu3050
- Disable regulators in error path.
* invensense,icm42600
- Fix collision of enum value of 0 with error path where 0 is no match.
* renesas,rzg2l_Adc
- Add missing fwnode_handle_put() in error path.
* rescale
- Fix a boolean logic bug for detection of raw + scale affecting an
obscure corner case.
* semtech,sx9324
- Check return value of read of pin_defs
* st,stm32-adc:
- Fix interaction across ADC instances for some supported devices.
- Drop false spurious IRQ messages.
- Fix calibration value handling. If we can't calibrate don't expose the
vref_int channel.
- Fix maximum clock rate for stm32pm15x
* ti,ads131e08
- Add missing fwnode_handle_put() in error paths.
* xilinx,ams
- Fix variable checked for error from platform_get_irq()
* x-powers,axp288
- Overide TS_PIN bias current for boards where it is not correctly
initialized.
* yamaha,yas530
- Fix inverted check on calibration data being all zeros.
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Merge tag 'iio-fixes-for-5.19a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into char-misc-next
Jonathan writes:
1st set of IIO fixes for the 5.19 cycle.
Most of these have been in next for a long time. Unfortunately there
was one stray patch in the branch (wasn't a fix), so I've just rebased
to remove that.
* testing
- Fix a missing MODULE_LICENSE() warning by restricting possible build
configs.
* Various drivers
- Fix ordering of iio_get_trigger() being called before
iio_trigger_register()
* adi,admv1014
- Fix dubious x & !y warning.
* adi,axi-adc
- Fix missing of_node_put() in error and normal paths.
* aspeed,adc
- Add missing of_node_put()
* fsl,mma8452
- Fix broken probing from device tree.
- Drop check on return value of i2c write to device to cause reset as
ACK will be missing (device reset before sending it).
* fsl,vf610
- Fix documentation of in_conversion_mode ABI.
* iio-trig-sysfs
- Ensure irq work has finished before freeing the trigger.
* invensense,mpu3050
- Disable regulators in error path.
* invensense,icm42600
- Fix collision of enum value of 0 with error path where 0 is no match.
* renesas,rzg2l_Adc
- Add missing fwnode_handle_put() in error path.
* rescale
- Fix a boolean logic bug for detection of raw + scale affecting an
obscure corner case.
* semtech,sx9324
- Check return value of read of pin_defs
* st,stm32-adc:
- Fix interaction across ADC instances for some supported devices.
- Drop false spurious IRQ messages.
- Fix calibration value handling. If we can't calibrate don't expose the
vref_int channel.
- Fix maximum clock rate for stm32pm15x
* ti,ads131e08
- Add missing fwnode_handle_put() in error paths.
* xilinx,ams
- Fix variable checked for error from platform_get_irq()
* x-powers,axp288
- Overide TS_PIN bias current for boards where it is not correctly
initialized.
* yamaha,yas530
- Fix inverted check on calibration data being all zeros.
* tag 'iio-fixes-for-5.19a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (26 commits)
iio:proximity:sx9324: Check ret value of device_property_read_u32_array()
iio: accel: mma8452: ignore the return value of reset operation
iio: adc: stm32: fix maximum clock rate for stm32mp15x
iio: adc: stm32: fix vrefint wrong calibration value handling
iio: imu: inv_icm42600: Fix broken icm42600 (chip id 0 value)
iio: adc: vf610: fix conversion mode sysfs node name
iio: adc: adi-axi-adc: Fix refcount leak in adi_axi_adc_attach_client
iio: test: fix missing MODULE_LICENSE for IIO_RESCALE=m
iio:humidity:hts221: rearrange iio trigger get and register
iio:chemical:ccs811: rearrange iio trigger get and register
iio:accel:mxc4005: rearrange iio trigger get and register
iio:accel:kxcjk-1013: rearrange iio trigger get and register
iio:accel:bma180: rearrange iio trigger get and register
iio: afe: rescale: Fix boolean logic bug
iio: adc: aspeed: Fix refcount leak in aspeed_adc_set_trim_data
iio: adc: stm32: Fix IRQs on STM32F4 by removing custom spurious IRQs message
iio: adc: stm32: Fix ADCs iteration in irq handler
iio: adc: ti-ads131e08: add missing fwnode_handle_put() in ads131e08_alloc_channels()
iio: adc: rzg2l_adc: add missing fwnode_handle_put() in rzg2l_adc_parse_properties()
iio: trigger: sysfs: fix use-after-free on remove
...
