Pull char / misc / iio driver updates from Greg KH:
"Here is the big char/misc/iio and other small driver subsystem pull
request for 6.16-rc1.
Overall, a lot of individual changes, but nothing major, just the
normal constant forward progress of new device support and cleanups to
existing subsystems. Highlights in here are:
- Large IIO driver updates and additions and device tree changes
- Android binder bugfixes and logfile fixes
- mhi driver updates
- comedi driver updates
- counter driver updates and additions
- coresight driver updates and additions
- echo driver removal as there are no in-kernel users of it
- nvmem driver updates
- spmi driver updates
- new amd-sbi driver "subsystem" and drivers added
- rust miscdriver binding documentation fix
- other small driver fixes and updates (uio, w1, acrn, hpet,
xillybus, cardreader drivers, fastrpc and others)
All of these have been in linux-next for quite a while with no
reported problems"
* tag 'char-misc-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (390 commits)
binder: fix yet another UAF in binder_devices
counter: microchip-tcb-capture: Add watch validation support
dt-bindings: iio: adc: Add ROHM BD79100G
iio: adc: add support for Nuvoton NCT7201
dt-bindings: iio: adc: add NCT7201 ADCs
iio: chemical: Add driver for SEN0322
dt-bindings: trivial-devices: Document SEN0322
iio: adc: ad7768-1: reorganize driver headers
iio: bmp280: zero-init buffer
iio: ssp_sensors: optimalize -> optimize
HID: sensor-hub: Fix typo and improve documentation
iio: admv1013: replace redundant ternary operator with just len
iio: chemical: mhz19b: Fix error code in probe()
iio: adc: at91-sama5d2: use IIO_DECLARE_BUFFER_WITH_TS
iio: accel: sca3300: use IIO_DECLARE_BUFFER_WITH_TS
iio: adc: ad7380: use IIO_DECLARE_DMA_BUFFER_WITH_TS
iio: adc: ad4695: rename AD4695_MAX_VIN_CHANNELS
iio: adc: ad4695: use IIO_DECLARE_DMA_BUFFER_WITH_TS
iio: introduce IIO_DECLARE_BUFFER_WITH_TS macros
iio: make IIO_DMA_MINALIGN minimum of 8 bytes
...
Document the AD3530/AD3530R (8-channel) and AD3531/AD3531R (4-channel)
low-power, 16-bit, buffered voltage output DACs with software-
programmable gain controls. They provide full-scale output spans of 2.5V
or 5V for reference voltages of 2.5V. These devices operate on a single
2.7V to 5.5V supply and are guaranteed to be monotonic by design.
The "R" variants include a 2.5V, 5ppm/°C internal reference, which is
disabled by default.
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: David Lechner <dlechner@baylibre.com>
Signed-off-by: Kim Seer Paller <kimseer.paller@analog.com>
Link: https://patch.msgid.link/20250429-togreg-v7-2-0af9c543b545@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
The ROHM BD79104 is a 12-bit, 8-channel ADC with two power supply pins,
connected to SPI. It's worth noting the IC requires SPI MODE 3, (CPHA =
1, CPOL = 1).
I used an evaluation board "BD79104FV-EVK-001" from ROHM. With this
board I had problems to have things working correctly with higher SPI
clock frequencies. I didn't do thorough testing for maximum frequency
though. First attempt was 40M, then 20M and finally 4M. With 20M it
seemed as if the read values were shifted by 1 bit. With 4M it worked
fine.
The component data-sheet is not exact what comes to the maximum SPI
frequency. It says SPI frequency is 20M - "unless othervice specified".
Additionally, it says that maximum sampling rate is 1Mhz, and since
reading a sample requires writing the channel (16 bits) and reading
data (16 bits) - we get some upper limit from this.
>From the "frequency is 20M, unless othervice specified" I picked the
maximum frequency 20M - and did assumption that my problems with 20M
weren't related to the BD79104 - but to the evaluation board
"BD79104FV-EVK-001".
Add bindings for the ROHM BD79104 ADC.
Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://patch.msgid.link/2a4c65ee35cb79c6b29dbc59cfd9bc7d615a08ac.1744022065.git.mazziesaccount@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Pull char / misc / IIO driver updates from Greg KH:
"Here is the big set of char, misc, iio, and other smaller driver
subsystems for 6.15-rc1. Lots of stuff in here, including:
- loads of IIO changes and driver updates
- counter driver updates
- w1 driver updates
- faux conversions for some drivers that were abusing the platform
bus interface
- coresight driver updates
- rust miscdevice binding updates based on real-world-use
- other minor driver updates
All of these have been in linux-next with no reported issues for quite
a while"
* tag 'char-misc-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (292 commits)
samples: rust_misc_device: fix markup in top-level docs
Coresight: Fix a NULL vs IS_ERR() bug in probe
misc: lis3lv02d: convert to use faux_device
tlclk: convert to use faux_device
regulator: dummy: convert to use the faux device interface
bus: mhi: host: Fix race between unprepare and queue_buf
coresight: configfs: Constify struct config_item_type
doc: iio: ad7380: describe offload support
iio: ad7380: add support for SPI offload
iio: light: Add check for array bounds in veml6075_read_int_time_ms
iio: adc: ti-ads7924 Drop unnecessary function parameters
staging: iio: ad9834: Use devm_regulator_get_enable()
staging: iio: ad9832: Use devm_regulator_get_enable()
iio: gyro: bmg160_spi: add of_match_table
dt-bindings: iio: adc: Add i.MX94 and i.MX95 support
iio: adc: ad7768-1: remove unnecessary locking
Documentation: ABI: add wideband filter type to sysfs-bus-iio
iio: adc: ad7768-1: set MOSI idle state to prevent accidental reset
iio: adc: ad7768-1: Fix conversion result sign
iio: adc: ad7124: Benefit of dev = indio_dev->dev.parent in ad7124_parse_channel_config()
...
Pull SoC devicetree updates from Arnd Bergmann:
"There is new support for additional on-chip devices on Apple,
Mediatek, Renesas, Rockchip, Samsung, Google, TI, ST, Nvidia and
Amlogic devices.
The Arm Morello reference platform gets a devicetree for booting in
normal aarch64 mode. The hardware supports experimental CHERI support,
which requires a modified kernel.
The AMD (formerly Xilinx) Versal NET SoC gets added, this is a
combined FPGA with Cortex-A78 CPUs in a SoC.
Six new ST STM32MP2 SoC variants are added. Like the earlier
STM32MP25, the MP211, MP213, MP215, MP231, MP233 and MP235 models are
based on one or two Cortex-A35 cores but each feature a different set
of I/O devices.
Mediatek MT8370 is a minor variation of MT8390 with fewer CPU and GPU
cores
Apple T2 is the baseboard management controller on earlier Intel CPU
based Macs, with 16 models now gaining initial support.
All the above come with dts files for the reference boards. In
addition, these boards are added for the SoCs that are already
supported:
- The Milk-V Jupiter board based on SpacemiT K1/M1
- NetCube Systems Kumquat board based on the 32-bit Allwinner V3s SoC
- Three boards based on 32-bit stm32mp1
- 11 distinct board variants from Toradex and one from Variscite, all
based on i.MX6
- Google Pixel Pro 6 phone based on gs101 (Tensor)
- Three additional variants of the i.MX8MP based "Skov" board
- A second variant of the i.MX95 EVK board
- Two boards based on Renesas SoCs
- Four boards based the Rockchip RK35xx series, plus the RK3588 'MNT
Reform 2' laptop"
* tag 'soc-dt-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (538 commits)
arm64: dts: Add gpio_intc node for Amlogic A5 SoCs
arm64: dts: Add gpio_intc node for Amlogic A4 SoCs
arm64: dts: hi3660: Add property for fixing CPUIdle
arm64: dts: rockchip: remove ethm0_clk0_25m_out from Sige5 gmac0
arm64: dts: marvell: Use preferred node names for "simple-bus"
arm64: dts: marvell: Drop unused CP11X_TYPE define
arm64: dts: marvell: Move arch timer and pmu nodes to top-level
arm64: dts: rockchip: Fix PWM pinctrl names
arm64: dts: rockchip: fix RK3576 SCMI clock IDs
dt-bindings: clock: rk3576: add SCMI clocks
arm64: dts: rockchip: Fix pcie reset gpio on Orange Pi 5 Max
arm64: dts: amd/seattle: Drop undocumented "spi-controller" properties
arm64: dts: amd/seattle: Fix bus, mmc, and ethernet node names
arm64: dts: amd/seattle: Move and simplify fixed clocks
arm64: dts: amd/seattle: Base Overdrive B1 on top of B0 version
arm64: dts: rockchip: Enable HDMI audio output for ArmSoM Sige7
arm64: dts: rockchip: Enable onboard eMMC on Radxa E20C
arm64: dts: rockchip: Add SDHCI controller for RK3528
arm64: dts: rockchip: Remove bluetooth node from rock-3a
arm64: dts: rockchip: Move rk356x scmi SHMEM to reserved memory
...
Jonathan writes:
IIO: New device support, features and cleanup for the 6.15 cycle.
The usual mixture of new drivers, support in existing drivers for new
devices, a range of features and general subsystem cleanup.
Two merges of immutable branches in here:
* SPI offload support. Culmination of a long effort to bring the ability
to offload triggered sequences of SPI operations to specific hardware,
allow high datarate acquisition over an SPI bus (if you have the right
hardware / FPGA firmware)
* GPIO set-array-helper - enables code simplification.
New device support
==================
adi,ad3552r-hs:
- Add support for AD3541r and AD3542r via newly supported FPGA HDL.
adi,ad4030
- New driver supporting the AD4030, AD4630 AD4630-16, AD4640-24, AD4632-16,
AD4632-24 1 and 2 channel high precision SPI ADCs.
adi,ad4851
- New driver and backend support for the AD4851, AD4852, AD4853, AD4854,
AD4855, AD4846, AD4857, AD4858 and AD4858I high speed multichannel
simultaneous sampling ADCs.
adi,ad7191
- New driver for this 24-bit ADC for precision bridge applications,
adi,ad7380
- Add support for the adaq4381-4 which is a 14-bit version of the
already supported adaq4380-1
adi,adis16550
- New driver using the ADIS library (which needed extensions) for this
IMU.
brcm,apds9160
- New driver for this proximity and ambient light sensor.
dynaimage,al3000a
- New driver for this illuminance sensor.
mcube,mc3230
- Add support for the mc3510c accelerometer with a different scale to existing
supported parts (some rework preceded this)
nxp,imx93
- Add compatibles for imx94 and imx95 which are fully compatible with imx93.
rockchip,saradc
- Add support for the RK3528 ADC
- Add support for the RK3562 ADC
silab,si7210
- New driver to support this I2C Hall effect magnetic position sensor.
ti,ads7138
- New driver supporting the ADS7128 and AD7138 I2C ADCs.
Staging driver drop
===================
adi,adis16240
- Drop this impact sensor. Interesting part but complex hence never left
staging due to ABI challenges. No longer readily available so drop driver.
New features
============
Documentation
- A really nice overview document introduce ADC terminology and how
it maps to IIO.
core
- New description for FAULT events, used in the ad7173.
- filter_type ABI used in ad4130.
buffer-dmaengine
- Split DMA channel request from buffer allocation (for SPI offload)
- Add a new _with_handle setup variant. (for SPI offload)
adi,adf4371
- Add control of reference clock type and support for frequency doubling
where appropriate.
adi,ad4695
- Support SPI offload.
- Support oversampling control.
adi,ad5791
- Support SPI offload.
adi,ad7124
- Add channel calibration support.
adi,ad7380:
- Alert support (threshold interrupts)
- SPI offload support.
adi,ad7606
- Support writing registers when using backend enabling software control
of modes.
adi,ad7944
- Support SPI offload.
adi,ad9832
- Use devm_regulator_get_enable() to simplify code.
adi,ad9834
- Use devm_regulator_get_enable() to simplify code.
adi,adxl345
- Improve IRQ handling code.
- Add debug access to registers.
bosch,bmi270
- Add temperature channel support.
- Add data ready trigger.
google,cross_ec
- Add trace events.
mcube,mc3230
- Add mount matrix support
- Add an OF match table.
Cleanup and minor bug fixes
===========================
Tree wide:
- Stop using iio_device_claim_direct_scoped() and introduce sparse friendly
iio_device_claim/release_direct()
The conditional scoped cleanup has proved hard to deal with, requiring
workarounds for various compiler issues and in is rather non-intuitive
so abandon that experiment. One of the attractions of that approach was
that it made it much harder to have unbalanced claim/release bugs so
instead introduce a conditional-lock style boolean returning new pair
of functions. These are inline in the header and have __acquire and
__release calls allowing sparse to detect lack of balance. There are
occasional false positives but so far those have reflected complex code
paths that benefited from cleanup anyway.
The first set of driver conversions are in this pull request, more to
follow next cycle. Various related cleanup in drivers.
Removal of the _scoped code is completed and the definition removed.
- Use of str_enable_disable() and similar helpers.
- Don't set regmap cache to REGCACHE_NONE as that's the default anyway.
- Change some caches from RBTREE to MAPLE reflecting best practice.
- Use the new gpiod_multi_set_value_cansleep()
- Make sure to grab direct mode for some calibrations paths.
- Avoid using memcmp on structures when checking for matching channel configs.
Instead just match field by field.
dt-bindings:
- Fix up indentation inconsistencies.
gts-helper:
- Simplify building of available scale table.
adi,ad-sigma-delta
- Make sure to disable channel after calibration done.
- Add error handling in configuring channel during calibration.
adi,ad2s1201
- use a bitmap_write() rather than directly accessing underlying storage.
adi,ad3552r-hs
- Fix a wrong error message.
- Make sure to use instruction mode for configuration.
adi,ad4695
- Add a conversion to ensure exit from conversion mode.
- Use custom regmap to handle required sclk rate change.
- Fix an out of bounds array access
- Simplify oversampling ratio handling.
adi,ad4851
- Fix a sign bug.
adi,ad5791
- Fix wrong exported number of storage bits.
adi,ad7124
- Disable all channels at probe to avoid strange initial configurations.
adi,ad7173
- Rework to allow static const struct ad_sigma_delta without need
to make a copy.
adi,ad7623
- Drop a BSD license tag that the authors consider unnecessary.
adi,ad7768-1
- Fix channels sign description exposed to user space.
- Set MOSI idle state to avoid accidental device reset.
- Avoid some overkill locking.
adi,axi-dac
- Check if device interface is busy when enabling data stream.
- Add control of bus mode.
bosch,bmi270
- Move a struct definition to a c file as only used there.
vishay,veml6030
- Enable regmap cache to reduce bus traffic.
- Fix ABI bug around scale reporting.
vishay,vem6075
- Check array bounds to harden against broken hardware.
Various other minor tweaks and fixes not called out.
*
* tag 'iio-for-6.15a' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (223 commits)
doc: iio: ad7380: describe offload support
iio: ad7380: add support for SPI offload
iio: light: Add check for array bounds in veml6075_read_int_time_ms
iio: adc: ti-ads7924 Drop unnecessary function parameters
staging: iio: ad9834: Use devm_regulator_get_enable()
staging: iio: ad9832: Use devm_regulator_get_enable()
iio: gyro: bmg160_spi: add of_match_table
dt-bindings: iio: adc: Add i.MX94 and i.MX95 support
iio: adc: ad7768-1: remove unnecessary locking
Documentation: ABI: add wideband filter type to sysfs-bus-iio
iio: adc: ad7768-1: set MOSI idle state to prevent accidental reset
iio: adc: ad7768-1: Fix conversion result sign
iio: adc: ad7124: Benefit of dev = indio_dev->dev.parent in ad7124_parse_channel_config()
iio: adc: ad7124: Implement system calibration
iio: adc: ad7124: Implement internal calibration at probe time
iio: adc: ad_sigma_delta: Add error checking for ad_sigma_delta_set_channel()
iio: adc: ad4130: Adapt internal names to match official filter_type ABI
iio: adc: ad7173: Fix comparison of channel configs
iio: adc: ad7124: Fix comparison of channel configs
iio: adc: ad4130: Fix comparison of channel setups
...
The Successive Approximation ADC (SARADC) in RK3528 uses the v2
controller and support:
- 10-bit resolution
- Up to 1MS/s sampling rate
- 4 single-ended input channels
- Current consumption: 0.5mA @ 1MS/s
Add a rockchip,rk3562-saradc compatible string for the 4 channels of
10-bit resolution supported by SARADC in RK3528.
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patch.msgid.link/20250227184058.2964204-2-jonas@kwiboo.se
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Firmware contants do not fit the purpose of bindings because they are not
independent IDs for abstractions. They are more or less just contants which
better to wire via header with DT which is using it.
That's why add deprecated message to dt binding header and also update
existing dt bindings not to use macros from the header and replace them by
it's value. Actually value is not relevant because it is only example.
The similar changes have been done by commit 9d92925768 ("dt-bindings:
pinctrl: samsung: deprecate header with register constants").
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Vinod Koul <vkoul@kernel.org>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/2a6f0229522327939e6893565e540b75f854a37b.1738600745.git.michal.simek@amd.com
This adds a binding specification for the Analog Devices Inc. AD4030,
AD4630 and AD4632 families of ADCs.
- ad4030-24 is a 1 channel SAR ADC with 24 bits of precision and a
sampling rate of 2M samples per second
- ad4032-24 is a 1 channel SAR ADC with 24 bits of precision and a
sampling rate of 500K samples per second
- ad4630-16 is a 2 channels SAR ADC with 16 bits of precision and a
sampling rate of 2M samples per second
- ad4630-24 is a 2 channels SAR ADC with 24 bits of precision and a
sampling rate of 2M samples per second
- ad4632-16 is a 2 channels SAR ADC with 16 bits of precision and a
sampling rate of 500K samples per second
- ad4632-24 is a 2 channels SAR ADC with 24 bits of precision and a
sampling rate of 500K samples per second
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Esteban Blanc <eblanc@baylibre.com>
Link: https://patch.msgid.link/20250214-eblanc-ad4630_v1-v4-1-135dd66cab6a@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Add a new compatible and related bindings for the fpga-based
AD485x AXI IP core, a variant of the generic AXI ADC IP.
The AXI AD485x IP is a very similar HDL (fpga) variant of the
generic AXI ADC IP, intended to control ad485x family.
Although this is not preferred, the wildcard naming is used to
match the published firmware under the same name.
Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Link: https://patch.msgid.link/20250214131955.31973-6-antoniu.miclaus@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Merge from Jonathan:
IIO: 2nd set of fixes for the 6.13 cycle.
Given timing so late in cycle and that they are all confined to
specific drivers, it is fine for these to go upstream early in the
6.14 cycle.
hid-sensors
- Handle processed attention channel rather than just returning
an error.
adi,ad3552r
- Fix output ranges for ad3541r and ad3542r.
- Clear the reset status flag so that we can pick up any resets
during operation.
adi,ad5791
- Fix a misleading dt binding example where the sense of the
interrupt was reversed.
adi,ad7606
- Fix some hard coded offsets that should be taking the number of
channels on a particular part into account. These were missed
due to some racing changes.
ams,as73211
- Fix an off by one in optimized path for just reading the colour
channels.
bosch,bme680
- Fix type of variable passed as pointer, ensuring it works on
big endian systems and doesn't expose uninitialized data.
* tag 'iio-fixes-for-6.13b' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/jic23/iio:
iio: dac: ad3552r-hs: clear reset status flag
iio: dac: ad3552r-common: fix ad3541/2r ranges
iio: chemical: bme680: Fix uninitialized variable in __bme680_read_raw()
iio: light: as73211: fix channel handling in only-color triggered buffer
dt-bindings: iio: dac: ad5791: ldac gpio is active low
iio: hid-sensor-prox: Fix invalid read_raw for attention
iio: adc: ad7606: Fix hardcoded offset in the ADC channels
We need the IIO fixes in here as well, and it resolves a merge conflict
in:
drivers/iio/adc/ti-ads1119.c
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add interrupt-names INT1 and INT2 for the two interrupt lines of the
sensor.
When one of the two interrupt lines is connected, the interrupt as its
interrupt-name, need to be declared in the devicetree. The driver then
configures the sensor to indicate its events on either INT1 or INT2.
If no interrupt is configured, then no interrupt-name should be
configured, and vice versa. In this case the sensor runs in FIFO BYPASS
mode. This allows sensor measurements, but none of the sensor events.
Signed-off-by: Lothar Rubusch <l.rubusch@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20241225181338.69672-4-l.rubusch@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
