Commit Graph

1443 Commits

Author SHA1 Message Date
Linus Torvalds
4a0225c3d2 spi: Updates for v5.13
The only core work for SPI this time around is the completion of the
 conversion to the new style method for specifying transfer delays,
 meaning we can cope with what most controllers support more directly
 using conversions in the core rather than open coding in drivers.
 Otherwise it's a good stack of cleanups and fixes plus a few new
 drivers.
 
 The conversion to new style transfer delay will cause an issue with a
 newly added staging driver which has a straightforward resolution in
 -next.
 
  - Completion of the conversion to new style transfer delay
    configuration.
  - Introduction and use of module_parport_driver() helper, merged here
    as there's no parport tree.
  - Support for Altera SoCs on DFL buses, NXP i.MX8DL, HiSilicon Kunpeng,
    MediaTek MT8195,
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Merge tag 'spi-v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi updates from Mark Brown:
 "The only core work for SPI this time around is the completion of the
  conversion to the new style method for specifying transfer delays,
  meaning we can cope with what most controllers support more directly
  using conversions in the core rather than open coding in drivers.

  Otherwise it's a good stack of cleanups and fixes plus a few new
  drivers.

  Summary:

   - Completion of the conversion to new style transfer delay
     configuration

   - Introduction and use of module_parport_driver() helper, merged here
     as there's no parport tree

   - Support for Altera SoCs on DFL buses, NXP i.MX8DL, HiSilicon
     Kunpeng, MediaTek MT8195"

* tag 'spi-v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (113 commits)
  spi: Rename enable1 to activate in spi_set_cs()
  spi: Convert Freescale QSPI binding to json schema
  spi: stm32-qspi: fix debug format string
  spi: tools: make a symbolic link to the header file spi.h
  spi: fsi: add a missing of_node_put
  spi: Make error handling of gpiod_count() call cleaner
  spidev: Add Micron SPI NOR Authenta device compatible
  spi: brcm,spi-bcm-qspi: convert to the json-schema
  spi: altera: Add DFL bus driver for Altera API Controller
  spi: altera: separate core code from platform code
  spi: stm32-qspi: Fix compilation warning in ARM64
  spi: Handle SPI device setup callback failure.
  spi: sync up initial chipselect state
  spi: stm32-qspi: Add dirmap support
  spi: stm32-qspi: Trigger DMA only if more than 4 bytes to transfer
  spi: stm32-qspi: fix pm_runtime usage_count counter
  spi: spi-zynqmp-gqspi: return -ENOMEM if dma_map_single fails
  spi: spi-zynqmp-gqspi: fix use-after-free in zynqmp_qspi_exec_op
  spi: spi-zynqmp-gqspi: Resolved slab-out-of-bounds bug
  spi: spi-zynqmp-gqspi: fix hang issue when suspend/resume
  ...
2021-04-26 16:32:11 -07:00
Alexandru Ardelean
194eafc9c1 iio: adc: Kconfig: make AD9467 depend on ADI_AXI_ADC symbol
Because a dependency on HAS_IOMEM and OF was added for the ADI AXI ADC
driver, this makes the AD9467 driver have some build/dependency issues
when OF is disabled (typically on ACPI archs like x86).

This is because the selection of the AD9467 enforces the ADI_AXI_ADC symbol
which is blocked by the OF (and potentially HAS_IOMEM) being disabled.

To fix this, we make the AD9467 driver depend on the ADI_AXI_ADC symbol.
The AD9467 driver cannot operate on it's own. It requires the ADI AXI ADC
driver to stream data (or some similar IIO interface).

So, the fix here is to make the AD9467 symbol depend on the ADI_AXI_ADC
symbol. At some point this could become it's own subgroup of high-speed
ADCs.

Fixes: be24c65e9f ("iio: adc: adi-axi-adc: add proper Kconfig dependencies")
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Alexandru Ardelean <aardelean@deviqon.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20210324182746.9337-1-aardelean@deviqon.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-04-07 08:36:40 +01:00
Jonathan Cameron
4d84487d96 iio:adc: Fix trivial typo
"an" should be "and".

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20210401150810.227168-1-jic23@kernel.org
2021-04-07 08:36:39 +01:00
Jonathan Cameron
6baee4bd63 iio:adc:ad7476: Fix remove handling
This driver was in an odd half way state between devm based cleanup
and manual cleanup (most of which was missing).
I would guess something went wrong with a rebase or similar.
Anyhow, this basically finishes the job as a precursor to improving
the regulator handling.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Fixes: 4bb2b8f94a ("iio: adc: ad7476: implement devm_add_action_or_reset")
Cc: Michael Hennerich <michael.hennerich@analog.com>
Reviewed-by: Alexandru Ardelean <ardeleanalex@gmail.com>
Cc: <Stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210401171759.318140-2-jic23@kernel.org
2021-04-07 08:36:39 +01:00
Jonathan Cameron
eaa17fa7d8 iio:adc:ad_sigma_delta: Use IRQF_NO_AUTOEN rather than request and disable
These devices are not able to mask the signal used as a data ready
interrupt.  As such they previously requested the irq then immediately
disabled it.  Now we can avoid the potential of a spurious interrupt
by avoiding the irq being auto enabled in the first place.

I'm not sure how this code could have been called with the irq already
disabled, so I believe the conditional would always have been true and
have removed it.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Alexandru Ardelean <ardeleanalex@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
Link: https://lore.kernel.org/r/20210402184544.488862-8-jic23@kernel.org
2021-04-07 08:36:39 +01:00
Jonathan Cameron
ff2293ea9c iio:adc:sun4i-gpadc: Use new IRQF_NO_AUTOEN flag instead of request then disable
This new flag ensures a requested irq is not autoenabled, thus removing
the need for the disable_irq() that follows and closing off any chance
of spurious interrupts.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Maxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: Barry Song <song.bao.hua@hisilicon.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
Link: https://lore.kernel.org/r/20210402184544.488862-5-jic23@kernel.org
2021-04-07 08:36:39 +01:00
Jonathan Cameron
aef3ef1659 iio:adc:nau7802: Use IRQF_NO_AUTOEN instead of request then disable
Whilst a race during interrupt enabling is probably not a problem,
it is better to not enable the interrupt at all.  The new
IRQF_NO_AUTOEN flag allows us to do that.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Reviewed-by: Barry Song <song.bao.hua@hisilicon.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
Link: https://lore.kernel.org/r/20210402184544.488862-4-jic23@kernel.org
2021-04-07 08:36:39 +01:00
Jonathan Cameron
42004ceb34 iio:adc:exynos-adc: Use new IRQF_NO_AUTOEN flag rather than separate irq_disable()
Disabling an irq before the driver has actually atempted to request it
may work, but is definitely not as clean as just requesting it as
normal but with the auto enable disabled.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Barry Song <song.bao.hua@hisilicon.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
Link: https://lore.kernel.org/r/20210402184544.488862-3-jic23@kernel.org
2021-04-07 08:36:39 +01:00
Jonathan Cameron
0be49bdedc iio:adc:ad7766: Use new IRQF_NO_AUTOEN to reduce boilerplate
As iio_poll_trigger() is safe against spurious interrupts when the
trigger is not enabled, this is not a fix despite looking like
a race.  It is nice to simplify the code however so the interrupt
is never enabled in the first place.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Reviewed-by: Barry Song <song.bao.hua@hisilicon.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
Link: https://lore.kernel.org/r/20210402184544.488862-2-jic23@kernel.org
2021-04-07 08:36:39 +01:00
Mugilraj Dhavachelvan
bb142d4433 iio: adc: stm32-dfsdm: drop __func__ while using Dynamic debug
Dropped __func__ while using dev_dbg() and pr_debug()
If the function name is desired, it can be configured using
dynamic debug.

Signed-off-by: Mugilraj Dhavachelvan <dmugil2000@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20210401154343.41527-1-dmugil2000@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-04-07 08:36:38 +01:00
Jonathan Cameron
7604c2f9ea iio:adc: Drop false comment about lack of timestamp control
The timestamp control has been a function implemented in the core of
IIO for a long time, so this comment is incorrect and has clearly been
cut and paste into all these drivers.

The remainder of the comment added nothing and was confusing so dropped
that as well.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Michael Hennerich <Michael.Hennerich@analog.com>
Reviewed-by: Alexandru Ardelean <ardeleanalex@gmail.com>
Link: https://lore.kernel.org/r/20210401145410.226917-1-jic23@kernel.org
2021-04-07 08:36:38 +01:00
Lucas Stankus
3e55bb6f2a iio: adc: ad7923: register device with devm_iio_device_register
Registers the device using the devm variant.
This is the final step of converting the ad7923 to only use devm routines,
meaning that the ad7923_remove() function is no longer needed to release
resources on device detach.

Signed-off-by: Lucas Stankus <lucas.p.stankus@gmail.com>
Reviewed-by: Alexandru Ardelean <ardeleanalex@gmail.com>
Link: https://lore.kernel.org/r/b0146465d52f4e259f5f95c83c71e72f065093da.1616966903.git.lucas.p.stankus@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-03-29 13:25:01 +01:00
Lucas Stankus
075dff3367 iio: adc: ad7923: use device-managed function for triggered buffer
Converts the iio_triggered_buffer_setup() call to its device-managed
counterpart.
With this, the error handling routine in the ad7923_probe() function
becomes unnecessary as well as the iio_triggered_buffer_cleanup() call.

Signed-off-by: Lucas Stankus <lucas.p.stankus@gmail.com>
Reviewed-by: Alexandru Ardelean <ardeleanalex@gmail.com>
Link: https://lore.kernel.org/r/fe46a45caaa788f333d78367968272de728f4a6e.1616966903.git.lucas.p.stankus@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-03-29 12:17:41 +01:00
Lucas Stankus
44fc4de9bd iio: adc: ad7923: use devm_add_action_or_reset for regulator disable
Adds a device-managed action to handle disabling the driver's regulator on
device detach.
This slightly simplifies deinitialization and enables further conversion of
the driver to device-managed routines without breaking the init order.

Signed-off-by: Lucas Stankus <lucas.p.stankus@gmail.com>
Reviewed-by: Alexandru Ardelean <ardeleanalex@gmail.com>
Link: https://lore.kernel.org/r/49a7c0436ca1186313dbccf3d810d0cf38cb5b37.1616966903.git.lucas.p.stankus@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-03-29 12:17:41 +01:00
Greg Kroah-Hartman
9c15db92a8 1st set of IIO/counter device support, features and cleanup in the 5.13 cycle
Big set in here from Alexandru Ardelean enabling multiple buffer support.
 This includes providing a new directory per buffer that combines
 what was previously in buffer/ and scan_elements/. Old interfaces still
 in place for compatiblity.
 
 Note immuatable branch for scmi patches to allow for some significant
 rework going on in that subsystem.  Merge required updating to reflect
 some changes in IIO.
 
 Late rebase to fix some wrong fixes tags due to some earlier rebases
 made necessary by messing up the immutable branch.
 
 IIO New Device Support
 * adi,ad5686
   - Add info to support AD5673R and AD5677R
 * bosch,bmi088
   - New driver supporting this accelerometer + gyroscope
 * cros_ec_mkbp
   - New driver for this proximity sensor that exposes a 'front'
     sensor. Very simple switch like device, but driver allows it
     to share interface with more sophisticated proximity sensors.
 * iio_scmi
   - New driver to support ARM SCMI protocol to expose underlying
     accelerometers and gyroscopes via this firmware interface.
 * st,st_magn
   - Add ID for IISMDC magnetometer.
 * ti,ads131e0
   - New driver supporting ads131e04, ads131e06 and ads131e08 24 bit ADCs
 
 Counter New Device Support
 * IRQ or GPIO based counter
   - New driver for a conceptually simple counter that uses interrupts
     to perform the count.
 
 Features
 * core
   - Dual buffer supprt including:
      Various helpers to centralize handling of bufferer related elements.
      Document existing and new IOCTLs
      Register the IIO chrdev only if it can actually be used for anything.
      Rework attribute group creation in the core (lots of patches)
      Merge buffer/ and scan_elements/ entries into one list + maintain
      backwards compatible set.
      Introduce the internal logic and IOCTL to allow multiple buffers
      + access to an anon FD per buffer to actually read from it.
      Tidy up tools/iio/iio_generic_buffer and switch to new interfaces.
      Update ABI docs.
      A few follow up fixes, unsuprising as this was a huge bit of rework.
   - Move common case setting of trig->parent to the core.
   - Provide an iio_read_channel_processed_scale() to avoid loss of
     precision from iio_read_channel_processed() then applying integer
     scale. Use it in ntc_thermistor driver in hwmon.
   - Allow drivers to specify labels from elsewhere than DT. Use it for
     bmc150 and kxcjk-1013 labels related to position on 2 in one tablets.
   - Document label usage for proximity and accelerometer sensors.
   - Some local variable renames for consistency
 tools
   - Add -a parameter to iio_event_monitor to allow autoenabling of events.
 * acpi_als
   - Add trigger support for devices that don't support notification method.
 * adi,ad7124
   - Allow more than 8 channels.  This is a complex little device, but is
     capable of supporting up to 16 channels if the share certain
     configuration settings.
 * hrtimer-trigger
   - Support sampling frequency below 1Hz.
 * mediatek,mt8195-auxadc
   - Add compatible to binding docs (always also includes mt8173)
 * st,stm32-adc
   - Enable timetamps when not using DMA.
 * vishay,vcnl3020
   - Sampling frequency control.
 
 Cleanup and minor fixes:
 * treewide
   - Use some getter and setter functions instead of opencoding.
   - Set of fixes for pointless casts in various drivers.
   - Avoid wrong kernel-doc marking on comment blocks.
   - Fix various other minor kernel-doc issues shown by W=1
 * core
   - Use a signed temporary for IIO_VAL_FRACTIONAL_LOG2 to avoid odd casts.
   - Fix IIO_VAL_FRACTIONAL_LOG2 for values between -1.0 and 0.0
   - Add unit tests for iio_format_value()
 * docs
   - Fix formatting/typos in iio_configfs.rst and buffers.rst
   - Add documentation of index in buffers.rst
   - Fix scan element description
   - Avoid some issues with HTML generation from ABI docs by moving
     duplicated defintions to more generic files.
   - Drop reference to long dead mailing list.
 * 104-quad
   - Remove left over deprecated IIO counter ABI.
 * adi,adi-axi-adc
   - Fix wrong bit of docs.
 * adi,ad5791
   - Typos
 * adi,ad9834
    - Switch to device managed functions in probe.
 * adi,adis*
   - Add and use helpers for locking to reduced duplication.
 * adi,adis16480
   - Fix calculation of sampling frequency when using pulse per second input.
 * adi,adis16475
   - Calculate the IMU scaled internal sampling rate and runtime depending
     on sysfs based configuration rather than getting from DT. Drop now
     unnecessary property from DT bindings doc.
 * cros_ec
    - Fix result of a series of recent changes that means extended buffer
      attributes turn up in the wrong place. Too complex to revert the
      various patches unfortunately so this is a bit messy.
 * fsl,mma3452
   - Indentation cleanup.
 * hid-sensors
   - Size of storage needs to increase for some parts when using quaternions.
   - Move the get sensistivity attribute to hid-sensors-common to reduce
     duplication.  Enable it for more device types.
   - Correctly handle relative sensitivity if reported that way including
     documenting the new ABI.
 * maxim,max517
   - Use device managed functions in probe.
 * mediatek,mt6360-adc
   - Use asm/unaligned.h instead of directly including
     unaligned/be_byteshift.h
 * novuton,npcm-adc
   - Local lock instead of missusing mlock.
 * semtech,sx9500
   - Typos
 * st,sensor
   - typo fix
 * st,spear-adc
   - Local lock instead of missusing mlock.
 * st,stm32-adc
   - Long standing HAS_IOMEM dependency fix.
 * st,stm32-counter
   - Remove left over deprecated IIO counter ABI.
 * ti,palmas-adc
   - Local lock instead of missusing mlock.
 * ti,tmp007
   - Switch to device managed functions in probe.
 
 Other
 * MAINTAINERS
   - Move Peter Meerwald-Stadler to Credits at his request
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Merge tag 'iio-for-5.13a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

1st set of IIO/counter device support, features and cleanup in the 5.13 cycle

Big set in here from Alexandru Ardelean enabling multiple buffer support.
This includes providing a new directory per buffer that combines
what was previously in buffer/ and scan_elements/. Old interfaces still
in place for compatiblity.

Note immuatable branch for scmi patches to allow for some significant
rework going on in that subsystem.  Merge required updating to reflect
some changes in IIO.

Late rebase to fix some wrong fixes tags due to some earlier rebases
made necessary by messing up the immutable branch.

IIO New Device Support
* adi,ad5686
  - Add info to support AD5673R and AD5677R
* bosch,bmi088
  - New driver supporting this accelerometer + gyroscope
* cros_ec_mkbp
  - New driver for this proximity sensor that exposes a 'front'
    sensor. Very simple switch like device, but driver allows it
    to share interface with more sophisticated proximity sensors.
* iio_scmi
  - New driver to support ARM SCMI protocol to expose underlying
    accelerometers and gyroscopes via this firmware interface.
* st,st_magn
  - Add ID for IISMDC magnetometer.
* ti,ads131e0
  - New driver supporting ads131e04, ads131e06 and ads131e08 24 bit ADCs

Counter New Device Support
* IRQ or GPIO based counter
  - New driver for a conceptually simple counter that uses interrupts
    to perform the count.

Features
* core
  - Dual buffer supprt including:
     Various helpers to centralize handling of bufferer related elements.
     Document existing and new IOCTLs
     Register the IIO chrdev only if it can actually be used for anything.
     Rework attribute group creation in the core (lots of patches)
     Merge buffer/ and scan_elements/ entries into one list + maintain
     backwards compatible set.
     Introduce the internal logic and IOCTL to allow multiple buffers
     + access to an anon FD per buffer to actually read from it.
     Tidy up tools/iio/iio_generic_buffer and switch to new interfaces.
     Update ABI docs.
     A few follow up fixes, unsuprising as this was a huge bit of rework.
  - Move common case setting of trig->parent to the core.
  - Provide an iio_read_channel_processed_scale() to avoid loss of
    precision from iio_read_channel_processed() then applying integer
    scale. Use it in ntc_thermistor driver in hwmon.
  - Allow drivers to specify labels from elsewhere than DT. Use it for
    bmc150 and kxcjk-1013 labels related to position on 2 in one tablets.
  - Document label usage for proximity and accelerometer sensors.
  - Some local variable renames for consistency
tools
  - Add -a parameter to iio_event_monitor to allow autoenabling of events.
* acpi_als
  - Add trigger support for devices that don't support notification method.
* adi,ad7124
  - Allow more than 8 channels.  This is a complex little device, but is
    capable of supporting up to 16 channels if the share certain
    configuration settings.
* hrtimer-trigger
  - Support sampling frequency below 1Hz.
* mediatek,mt8195-auxadc
  - Add compatible to binding docs (always also includes mt8173)
* st,stm32-adc
  - Enable timetamps when not using DMA.
* vishay,vcnl3020
  - Sampling frequency control.

Cleanup and minor fixes:
* treewide
  - Use some getter and setter functions instead of opencoding.
  - Set of fixes for pointless casts in various drivers.
  - Avoid wrong kernel-doc marking on comment blocks.
  - Fix various other minor kernel-doc issues shown by W=1
* core
  - Use a signed temporary for IIO_VAL_FRACTIONAL_LOG2 to avoid odd casts.
  - Fix IIO_VAL_FRACTIONAL_LOG2 for values between -1.0 and 0.0
  - Add unit tests for iio_format_value()
* docs
  - Fix formatting/typos in iio_configfs.rst and buffers.rst
  - Add documentation of index in buffers.rst
  - Fix scan element description
  - Avoid some issues with HTML generation from ABI docs by moving
    duplicated defintions to more generic files.
  - Drop reference to long dead mailing list.
* 104-quad
  - Remove left over deprecated IIO counter ABI.
* adi,adi-axi-adc
  - Fix wrong bit of docs.
* adi,ad5791
  - Typos
* adi,ad9834
   - Switch to device managed functions in probe.
* adi,adis*
  - Add and use helpers for locking to reduced duplication.
* adi,adis16480
  - Fix calculation of sampling frequency when using pulse per second input.
* adi,adis16475
  - Calculate the IMU scaled internal sampling rate and runtime depending
    on sysfs based configuration rather than getting from DT. Drop now
    unnecessary property from DT bindings doc.
* cros_ec
   - Fix result of a series of recent changes that means extended buffer
     attributes turn up in the wrong place. Too complex to revert the
     various patches unfortunately so this is a bit messy.
* fsl,mma3452
  - Indentation cleanup.
* hid-sensors
  - Size of storage needs to increase for some parts when using quaternions.
  - Move the get sensistivity attribute to hid-sensors-common to reduce
    duplication.  Enable it for more device types.
  - Correctly handle relative sensitivity if reported that way including
    documenting the new ABI.
* maxim,max517
  - Use device managed functions in probe.
* mediatek,mt6360-adc
  - Use asm/unaligned.h instead of directly including
    unaligned/be_byteshift.h
* novuton,npcm-adc
  - Local lock instead of missusing mlock.
* semtech,sx9500
  - Typos
* st,sensor
  - typo fix
* st,spear-adc
  - Local lock instead of missusing mlock.
* st,stm32-adc
  - Long standing HAS_IOMEM dependency fix.
* st,stm32-counter
  - Remove left over deprecated IIO counter ABI.
* ti,palmas-adc
  - Local lock instead of missusing mlock.
* ti,tmp007
  - Switch to device managed functions in probe.

Other
* MAINTAINERS
  - Move Peter Meerwald-Stadler to Credits at his request

* tag 'iio-for-5.13a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (119 commits)
  iio: acpi_als: Add trigger support
  iio: acpi_als: Add local variable dev in probe
  iio: acpi_als: Add timestamp channel
  iio: adc: ad7292: Modify the bool initialization assignment
  iio: cros: unify hw fifo attributes without API changes
  iio: kfifo: add devm_iio_triggered_buffer_setup_ext variant
  iio: event_monitor: Enable events before monitoring
  dt-bindings: iio: adc: Add compatible for Mediatek MT8195
  iio:magnetometer: Add Support for ST IIS2MDC
  dt-bindings: iio: st,st-sensors add IIS2MDC.
  staging: iio: ad9832: kernel-doc fixes
  iio:dac:max517.c: Use devm_iio_device_register()
  iio:cros_ec_sensors: Fix a wrong function name in kernel doc.
  iio: buffer: kfifo_buf: kernel-doc, typo in function name.
  iio: accel: sca3000: kernel-doc fixes. Missing - and wrong function names.
  iio: adc: adi-axi-adc: Drop false marking for kernel-doc
  iio: adc: cpcap-adc: kernel-doc fix - that should be _ in structure name
  iio: dac: ad5504: fix wrong part number in kernel-doc structure name.
  iio: dac: ad5770r: kernel-doc fix case of letter R wrong in structure name
  iio: adc: ti-adc084s021: kernel-doc fixes, missing function names
  ...
2021-03-26 12:09:47 +01:00
Guoqing Chi
707182b4ff iio: adc: ad7292: Modify the bool initialization assignment
A bool initializer is best assigned to false rather than 0.

Signed-off-by: Guoqing Chi <chiguoqing@yulong.com>
Reviewed-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com>
Link: https://lore.kernel.org/r/20210319062706.5135-1-chi962464zy@163.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-03-25 19:13:52 +00:00
Jonathan Cameron
63abed2a1e iio: adc: adi-axi-adc: Drop false marking for kernel-doc
This comment block isn't in kernel-doc format so drop the /** marking.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Alexandru Ardelean <ardeleanalex@gmail.com>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20210314164655.408461-7-jic23@kernel.org
2021-03-25 19:13:51 +00:00
Jonathan Cameron
a80aeec087 iio: adc: cpcap-adc: kernel-doc fix - that should be _ in structure name
Fixes a W=1 warning.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Tony Lindgren <tony@atomide.com>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
Link: https://lore.kernel.org/r/20210314164655.408461-6-jic23@kernel.org
2021-03-25 19:13:51 +00:00
Jonathan Cameron
b863ff9419 iio: adc: ti-adc084s021: kernel-doc fixes, missing function names
The documentation in this driver was nearly kernel-doc and was marked
as such. Unfortunately the format was wrong and function names were
missing. This patch puts them in with minor edits to keep the resulting
line short.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Gwendal Grignou <gwendal@chromium.org>
Cc: Mårten Lindahl <martenli@axis.com>
Link: https://lore.kernel.org/r/20210314164655.408461-3-jic23@kernel.org
2021-03-25 19:13:51 +00:00
Gwendal Grignou
86073fa2b5 iio: xilinx-xadc: Remove code to set trigger parent
iio_trigger_set_drvdata() sets the trigger device parent to first
argument of viio_trigger_alloc(), no need to do it again in the driver
code.

In xadc_alloc_trigger, given dev is indio_dev->dev.parent, and we call
devm_iio_trigger_alloc wit dev as argument,  we do not have to set
data->trig->dev.parent to indio_dev->dev.parent anymore.

Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20210309193620.2176163-9-gwendal@chromium.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-03-25 19:13:51 +00:00
Gwendal Grignou
8a22522016 iio: fix devm_iio_trigger_alloc with parent.cocci
Use cocci semantic patch:
@@
expression trigger, P;
@@
   trigger = devm_iio_trigger_alloc(P, ...);
   ...
-  trigger->dev.parent = P;

To remove trigger->dev.parent, since it is set by default.

Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20210309193620.2176163-3-gwendal@chromium.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-03-25 19:13:50 +00:00
Gwendal Grignou
995071d36b iio: set default trig->dev.parent
When allocated with [devm_]iio_trigger_alloc(), set trig device parent to
the device the trigger is allocated for by default.

It can always be reassigned in the probe routine.

Change iio_trigger_alloc() API to add the device pointer to be coherent
with devm_iio_trigger_alloc, using similar interface to
iio_device_alloc().

Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20210309193620.2176163-2-gwendal@chromium.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-03-25 19:13:50 +00:00
Alexandru Tachici
7b8d045e49 iio: adc: ad7124: allow more than 8 channels
Currently AD7124-8 driver cannot use more than 8 IIO channels
because it was assigning the channel configurations bijectively
to channels specified in the device-tree. This is not possible
to do when using more than 8 channels as AD7124-8 has only 8
configuration registers.

To allow the user to use all channels at once the driver
will keep in memory configurations for all channels but
will program only 8 of them at a time on the device.
If multiple channels have the same configuration, only
one configuration register will be used. If there
are more configurations than available registers only
the last 8 used configurations will be allowed to exist
on the device in a LRU fashion.

Signed-off-by: Alexandru Tachici <alexandru.tachici@analog.com>
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/r/20210311091154.47785-2-alexandru.tachici@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-03-25 19:13:50 +00:00
Gwendal Grignou
b9d453a53d iio: Remove kernel-doc keyword in file header comment
Remove kernel-doc keyword from function header comment.
It fixes issues spotted by scripts/kernel-doc like:
drivers/iio/<driver>.c:3: info: Scanning doc for function <component name>
drivers/iio/<driver>.c:X: warning: expecting prototype for <component name>.
  Prototype was for <function>() instead

To reproduce the errors:
scripts/kernel-doc -v -none $(find drivers/iio/ -name \*.c \
-exec head -2 {} \+ | grep -B2 -e '\*\*' | grep '==' | cut -d ' ' -f 2)

After, confirm these errors are gone with:
scripts/kernel-doc -v -none $(git show --name-only  | grep -e "^driver")

Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Link: https://lore.kernel.org/r/20210309234314.2208256-1-gwendal@chromium.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-03-25 19:13:49 +00:00
Sergiu Cuciurean
08dfc6f8aa iio: adc: npcm_adc: Replace indio_dev->mlock with own device lock
As part of the general cleanup of indio_dev->mlock, this change replaces
it with a local lock on the device's state structure.

This is part of a bigger cleanup.
Link: https://lore.kernel.org/linux-iio/CA+U=Dsoo6YABe5ODLp+eFNPGFDjk5ZeQEceGkqjxXcVEhLWubw@mail.gmail.com/

Signed-off-by: Sergiu Cuciurean <sergiu.cuciurean@analog.com>
Signed-off-by: Mircea Caprioru <mircea.caprioru@analog.com>
Link: https://lore.kernel.org/r/20200928131333.36646-3-mircea.caprioru@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-03-25 19:13:49 +00:00
Sergiu Cuciurean
3a27d11fbf iio: adc: palmas_gpadc: Replace indio_dev->mlock with own device lock
As part of the general cleanup of indio_dev->mlock, this change replaces
it with a local lock on the device's state structure.

This is part of a bigger cleanup.
Link: https://lore.kernel.org/linux-iio/CA+U=Dsoo6YABe5ODLp+eFNPGFDjk5ZeQEceGkqjxXcVEhLWubw@mail.gmail.com/

Signed-off-by: Sergiu Cuciurean <sergiu.cuciurean@analog.com>
Signed-off-by: Mircea Caprioru <mircea.caprioru@analog.com>
Link: https://lore.kernel.org/r/20200928131333.36646-2-mircea.caprioru@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-03-25 19:13:49 +00:00
Sergiu Cuciurean
31e2d42a86 iio: adc: spear_adc: Replace indio_dev->mlock with own device lock
As part of the general cleanup of indio_dev->mlock, this change replaces
it with a local lock on the device's state structure.

This is part of a bigger cleanup.
Link: https://lore.kernel.org/linux-iio/CA+U=Dsoo6YABe5ODLp+eFNPGFDjk5ZeQEceGkqjxXcVEhLWubw@mail.gmail.com/

Signed-off-by: Sergiu Cuciurean <sergiu.cuciurean@analog.com>
Signed-off-by: Mircea Caprioru <mircea.caprioru@analog.com>
Link: https://lore.kernel.org/r/20200928131333.36646-1-mircea.caprioru@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-03-25 19:13:49 +00:00
Greg Kroah-Hartman
12ec5408d2 First set of IIO and counter fixes for the 5.12 cycle
adi,ad7949
 * Fix a wrong bitmask that could lead to an undefined bit being included.
 adi,adi-axi-adc
 * Add missing Kconfig dependencies
 adi,adis16400
 * Wrong error code handling in adis16400 that could lead to failed probe.
 hid-sensor-humidity, temperature
 * Fix alignment and space for timestamp channel.
 hid-sensor-prox
 * Fix an issue with handling of exponent on the channel scaling.
 invensense,mpu3050
 * Fix a hole in error handling.
 qcom,spi-vadc
 * Correct scaling
 st,ab8500-adc
 * Fix wrong scaling (by factor of 1000)
 st,stm32-adc
 * Add missing HAS_IOMEM dependency
 st,stm32-timer-cnt
 * Report count when running off internal clock
 * Fix issue with not checking ceiling before trying to write to hardware
 * Ensure driver doesn't have stashed state which doesn't match hardware by
   rereading from hardware in a slow path.
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Merge tag 'iio-fixes-for-5.12a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus

Jonathan writes:

First set of IIO and counter fixes for the 5.12 cycle

adi,ad7949
* Fix a wrong bitmask that could lead to an undefined bit being included.
adi,adi-axi-adc
* Add missing Kconfig dependencies
adi,adis16400
* Wrong error code handling in adis16400 that could lead to failed probe.
hid-sensor-humidity, temperature
* Fix alignment and space for timestamp channel.
hid-sensor-prox
* Fix an issue with handling of exponent on the channel scaling.
invensense,mpu3050
* Fix a hole in error handling.
qcom,spi-vadc
* Correct scaling
st,ab8500-adc
* Fix wrong scaling (by factor of 1000)
st,stm32-adc
* Add missing HAS_IOMEM dependency
st,stm32-timer-cnt
* Report count when running off internal clock
* Fix issue with not checking ceiling before trying to write to hardware
* Ensure driver doesn't have stashed state which doesn't match hardware by
  rereading from hardware in a slow path.

* tag 'iio-fixes-for-5.12a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio:
  iio: gyro: mpu3050: Fix error handling in mpu3050_trigger_handler
  iio: hid-sensor-temperature: Fix issues of timestamp channel
  iio: hid-sensor-humidity: Fix alignment issue of timestamp channel
  counter: stm32-timer-cnt: fix ceiling miss-alignment with reload register
  counter: stm32-timer-cnt: fix ceiling write max value
  counter: stm32-timer-cnt: Report count function when SLAVE_MODE_DISABLED
  iio: adc: ab8500-gpadc: Fix off by 10 to 3
  iio:adc:stm32-adc: Add HAS_IOMEM dependency
  iio: adis16400: Fix an error code in adis16400_initial_setup()
  iio: adc: adi-axi-adc: add proper Kconfig dependencies
  iio: adc: ad7949: fix wrong ADC result due to incorrect bit mask
  iio: hid-sensor-prox: Fix scale not correct issue
  iio:adc:qcom-spmi-vadc: add default scale to LR_MUX2_BAT_ID channel
2021-03-15 16:34:39 +01:00
Linus Walleij
b923561fab iio: adc: mt6360: Include right header
To get access to the big endian byte order parsing helpers
drivers need to include <asm/unaligned.h> and nothing else.

Cc: Gene Chen <gene_chen@richtek.com>
Suggested-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210215153447.48457-1-linus.walleij@linaro.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-03-11 20:47:13 +00:00
Julia Lawall
b624fd14a9 iio: use getter/setter functions
Use getter and setter functions, for a variety of data types.

Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Link: https://lore.kernel.org/r/20210209211315.1261791-1-Julia.Lawall@inria.fr
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-03-11 20:47:07 +00:00
Alexandru Ardelean
a02c09e42b iio: buffer-dma,adi-axi-adc: introduce devm_iio_dmaengine_buffer_setup()
This change does a conversion of the devm_iio_dmaengine_buffer_alloc() to
devm_iio_dmaengine_buffer_setup(). This will allocate an IIO DMA buffer and
attach it to the IIO device, similar to devm_iio_triggered_buffer_setup()
(though the underlying code is different, the final logic is the same).

Since the only user of the devm_iio_dmaengine_buffer_alloc() was the
adi-axi-adc driver, this change does the replacement in a single go in the
driver.

Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Link: https://lore.kernel.org/r/20210215104043.91251-7-alexandru.ardelean@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-03-11 20:47:02 +00:00
Alexandru Ardelean
17395ce299 iio: make use of devm_iio_kfifo_buffer_setup() helper
All drivers that already call devm_iio_kfifo_allocate() &
iio_device_attach_buffer() are simple to convert to
iio_device_attach_kfifo_buffer() in a single go.

This change does that; the unwind order is preserved.
What is important, is that the devm_iio_kfifo_buffer_setup() be called
after the indio_dev->modes is assigned, to make sure that
INDIO_BUFFER_SOFTWARE flag is set and not overridden by the assignment to
indio_dev->modes.

Also, the INDIO_BUFFER_SOFTWARE has been removed from the assignments of
'indio_dev->modes' because it is set by devm_iio_kfifo_buffer_setup().

Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Reviewed-by: Gwendal Grignou <gwendal@chromium.org>
Reviewed-by: Matt Ranostay <matt.ranostay@konsulko.com>x
Link: https://lore.kernel.org/r/20210215104043.91251-4-alexandru.ardelean@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-03-11 20:47:01 +00:00
Tomislav Denis
d935eddd27 iio: adc: Add driver for Texas Instruments ADS131E0x ADC family
The ADS131E0x are a family of multichannel, simultaneous sampling,
24-bit, delta-sigma, analog-to-digital converters (ADCs) with a
built-in programmable gain amplifier (PGA), internal reference
and an onboard oscillator.

Datasheet: https://www.ti.com/lit/ds/symlink/ads131e08.pdf
Signed-off-by: Tomislav Denis <tomislav.denis@avl.com>
Link: https://lore.kernel.org/r/20210202084107.3260-2-tomislav.denis@avl.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-03-11 20:46:58 +00:00
Ahmad Fatoum
8a09054f3e iio: adc: stm32-adc: enable timestamping for non-DMA usage
For non-DMA usage, we have an easy way to associate a timestamp with a
sample: iio_pollfunc_store_time stores a timestamp in the primary
trigger IRQ handler and stm32_adc_trigger_handler runs in the IRQ thread
to push out the buffer along with the timestamp.

For this to work, the driver needs to register an IIO_TIMESTAMP channel.
Do this.

For DMA, it's not as easy, because we don't push the buffers out of
stm32_adc_trigger, but out of stm32_adc_dma_buffer_done, which runs in
a tasklet scheduled after a DMA completion.

Preferably, the DMA controller would copy us the timestamp into that buffer
as well. Until this is implemented, restrict timestamping support to
only PIO. For low-frequency sampling, PIO is probably good enough.

Cc: Holger Assmann <has@pengutronix.de>
Acked-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Link: https://lore.kernel.org/r/20210125194824.30549-1-a.fatoum@pengutronix.de
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-03-11 20:46:57 +00:00
Jonathan Cameron
c03e2df6e1 iio:adc:stm32-adc: Add HAS_IOMEM dependency
Seems that there are config combinations in which this driver gets enabled
and hence selects the MFD, but with out HAS_IOMEM getting pulled in
via some other route.  MFD is entirely contained in an
if HAS_IOMEM block, leading to the build issue in this bugzilla.

https://bugzilla.kernel.org/show_bug.cgi?id=209889

Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-03-11 20:46:56 +00:00
Linus Torvalds
5d26c176d5 - Use the newly introduced 'hot' and 'critical' ops for the acpi
thermal driver (Daniel Lezcano)
 
 - Remove the notify ops as it is no longer used (Daniel Lezcano)
 
 - Remove the 'forced passive' option and the unused bind/unbind
   functions (Daniel Lezcano)
 
 - Remove the THERMAL_TRIPS_NONE and the code cleanup around this
   macro (Daniel Lezcano)
 
 - Rework the delays to make them pre-computed instead of computing
   them again and again at each polling interval (Daniel Lezcano)
 
 - Remove the pointless 'thermal_zone_device_reset' function (Daniel
   Lezcano)
 
 - Use the critical and hot ops to prevent an unexpected system
   shutdown on int340x (Kai-Heng Feng)
 
 - Make the cooling device state private to the thermal subsystem
   (Daniel Lezcano)
 
 - Prevent to use not-power-aware actor devices with the power
   allocator governor (Lukasz Luba)
 
 - Remove 'zx' and 'tango' support along with the corresponding
   platforms (Arnd Bergman)
 
 - Fix several issues on the Omap thermal driver (Tony Lindgren)
 
 - Add support for adc-tm5 PMIC thermal monitor for Qcom
   platforms. Please note those changes rely on an immutable branch:
   iio-thermal-5.11-rc1/ib-iio-thermal-5.11-rc1 from the iio tree
   (Dmitry Baryshkov)
 
 - Fix an initialization loop in the adc-tm5 (Colin Ian King)
 
 - Fix a return error check in the cpufreq cooling device (Viresh Kumar)
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Merge tag 'thermal-v5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux

Pull thermal updates from Daniel Lezcano:

 - Use the newly introduced 'hot' and 'critical' ops for the acpi
   thermal driver (Daniel Lezcano)

 - Remove the notify ops as it is no longer used (Daniel Lezcano)

 - Remove the 'forced passive' option and the unused bind/unbind
   functions (Daniel Lezcano)

 - Remove the THERMAL_TRIPS_NONE and the code cleanup around this macro
   (Daniel Lezcano)

 - Rework the delays to make them pre-computed instead of computing them
   again and again at each polling interval (Daniel Lezcano)

 - Remove the pointless 'thermal_zone_device_reset' function (Daniel
   Lezcano)

 - Use the critical and hot ops to prevent an unexpected system shutdown
   on int340x (Kai-Heng Feng)

 - Make the cooling device state private to the thermal subsystem
   (Daniel Lezcano)

 - Prevent to use not-power-aware actor devices with the power allocator
   governor (Lukasz Luba)

 - Remove 'zx' and 'tango' support along with the corresponding
   platforms (Arnd Bergman)

 - Fix several issues on the Omap thermal driver (Tony Lindgren)

 - Add support for adc-tm5 PMIC thermal monitor for Qcom platforms
   (Dmitry Baryshkov)

 - Fix an initialization loop in the adc-tm5 (Colin Ian King)

 - Fix a return error check in the cpufreq cooling device (Viresh Kumar)

* tag 'thermal-v5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux: (26 commits)
  thermal: cpufreq_cooling: freq_qos_update_request() returns < 0 on error
  thermal: qcom: Fix comparison with uninitialized variable channels_available
  thermal: qcom: add support for adc-tm5 PMIC thermal monitor
  dt-bindings: thermal: qcom: add adc-thermal monitor bindings
  thermal: ti-soc-thermal: Use non-inverted define for omap4
  thermal: ti-soc-thermal: Simplify polling with iopoll
  thermal: ti-soc-thermal: Fix stuck sensor with continuous mode for 4430
  thermal: ti-soc-thermal: Skip pointless register access for dra7
  thermal/drivers/zx: Remove zx driver
  thermal/drivers/tango: Remove tango driver
  thermal: power allocator: fail binding for non-power actor devices
  thermal/core: Make cooling device state change private
  thermal: intel: pch: Fix unexpected shutdown at critical temperature
  thermal: int340x: Fix unexpected shutdown at critical temperature
  thermal/core: Remove pointless thermal_zone_device_reset() function
  thermal/core: Remove ms based delay fields
  thermal/core: Use precomputed jiffies for the polling
  thermal/core: Precompute the delays from msecs to jiffies
  thermal/core: Remove unused macro THERMAL_TRIPS_NONE
  thermal/core: Remove THERMAL_TRIPS_NONE test
  ...
2021-02-22 09:39:11 -08:00
Linus Walleij
4f5434086d iio: adc: ab8500-gpadc: Fix off by 10 to 3
Fix an off by three orders of magnitude error in the AB8500
GPADC driver. Luckily it showed up quite quickly when trying
to make use of it. The processed reads were returning
microvolts, microamperes and microcelsius instead of millivolts,
milliamperes and millicelsius as advertised.

Cc: stable@vger.kernel.org
Fixes: 07063bbfa9 ("iio: adc: New driver for the AB8500 GPADC")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20201224011700.1059659-1-linus.walleij@linaro.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-02-21 16:17:10 +00:00
Jonathan Cameron
121875b28e iio:adc:stm32-adc: Add HAS_IOMEM dependency
Seems that there are config combinations in which this driver gets enabled
and hence selects the MFD, but with out HAS_IOMEM getting pulled in
via some other route.  MFD is entirely contained in an
if HAS_IOMEM block, leading to the build issue in this bugzilla.

https://bugzilla.kernel.org/show_bug.cgi?id=209889

Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20210124195034.22576-1-jic23@kernel.org
2021-02-21 16:01:09 +00:00
Dmitry Baryshkov
ca66dca5ed thermal: qcom: add support for adc-tm5 PMIC thermal monitor
Add support for Thermal Monitoring part of PMIC5. This part is closely
coupled with ADC, using it's channels directly. ADC-TM support
generating interrupts on ADC value crossing low or high voltage bounds,
which is used to support thermal trip points.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20210205000118.493610-3-dmitry.baryshkov@linaro.org
2021-02-15 21:28:53 +01:00
Alexandru Ardelean
be24c65e9f iio: adc: adi-axi-adc: add proper Kconfig dependencies
The ADI AXI ADC driver requires IO mem access and OF to work. This change
adds these dependencies to the Kconfig symbol of the driver.

This was also found via the lkp bot, as the
devm_platform_ioremap_resource() symbol was not found at link-time on the
S390 architecture.

Fixes: ef04070692 ("iio: adc: adi-axi-adc: add support for AXI ADC IP core")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Cc: <Stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210210105044.48914-1-alexandru.ardelean@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-02-14 12:40:00 +00:00
Wilfried Wessner
f890987fac iio: adc: ad7949: fix wrong ADC result due to incorrect bit mask
Fixes a wrong bit mask used for the ADC's result, which was caused by an
improper usage of the GENMASK() macro. The bits higher than ADC's
resolution are undefined and if not masked out correctly, a wrong result
can be given. The GENMASK() macro indexing is zero based, so the mask has
to go from [resolution - 1 , 0].

Fixes: 7f40e06143 ("iio:adc:ad7949: Add AD7949 ADC driver family")
Signed-off-by: Wilfried Wessner <wilfried.wessner@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Charles-Antoine Couret <charles-antoine.couret@essensium.com>
Cc: <Stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210208142705.GA51260@ubuntu
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-02-12 19:04:32 +00:00
Greg Kroah-Hartman
ec52736c35 Merge 5.11-rc5 into staging-next
We need the IIO/Staging fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-25 10:37:59 +01:00
Jonathan Cameron
1994a922eb Merge branch 'ib-iio-thermal-5.11-rc1' into togreg
Immutable branch to allow for additional patches to thermal that may
be applied in this cycle.
2021-01-22 08:52:26 +00:00
Xu Wang
aa15e68409 iio: adc: stm32-dfsdm: Remove redundant null check before clk_disable_unprepare
ecause clk_disable_unprepare() already checked NULL clock parameter,
so the additional check is unnecessary, just remove it.

Signed-off-by: Xu Wang <vulab@iscas.ac.cn>
Link: https://lore.kernel.org/r/20201231085322.24398-1-vulab@iscas.ac.cn
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-01-22 08:52:07 +00:00
Dmitry Baryshkov
24a7dc6fdb iio: adc: qcom-vadc-common: scale adcmap_100k_104ef_104fb
Scale adcmap_100k_104ef_104fb temp values by the factor of 1000 to
remove extra multiplication in qcom_vadc_scale_therm().

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20201204025509.1075506-12-dmitry.baryshkov@linaro.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-01-16 18:36:06 +00:00
Dmitry Baryshkov
48d2e2ff85 iio: adc: qcom-vadc-common: simplify qcom_vadc_map_voltage_temp
All volt-temp tables here are sorted in descending order. There is no
need to accout for (unused) ascending table sorting case, so simplify
the conversion function.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20201204025509.1075506-11-dmitry.baryshkov@linaro.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-01-16 18:34:29 +00:00
Dmitry Baryshkov
3bd0ceb566 iio: adc: qcom-vadc-common: rewrite vadc7 die temp calculation
qcom_vadc7_scale_hw_calib_die_temp() uses a table format different from
the rest of volt/temp conversion functions in this file. Also the
conversion functions results in non-monothonic values conversion, which
seems wrong.

Rewrite qcom_vadc7_scale_hw_calib_die_temp() to use
qcom_vadc_map_voltage_temp() directly, like the rest of conversion
functions do.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20201204025509.1075506-10-dmitry.baryshkov@linaro.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-01-16 18:32:36 +00:00
Dmitry Baryshkov
bb01e26374 iio: adc: move vadc_map_pt from header to the source file
struct vadc_map_pt is not used outside of qcom-vadc-common.c, so move it
there from the global header file.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20201204025509.1075506-9-dmitry.baryshkov@linaro.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-01-16 18:28:18 +00:00
Dmitry Baryshkov
9695a2a52c iio: adc: qcom-spmi-adc5: use of_device_get_match_data
Use of_device_get_match_data() instead of hand-coding it manually.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Acked-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20201204025509.1075506-7-dmitry.baryshkov@linaro.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-01-16 18:23:36 +00:00
Dmitry Baryshkov
ec82edb258 iio: adc: move qcom-vadc-common.h to include dir
qcom-vadc-common module will be used by ADC thermal monitoring driver,
so move it to global include dir.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20201204025509.1075506-6-dmitry.baryshkov@linaro.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-01-16 18:20:56 +00:00