Commit Graph

1426937 Commits

Author SHA1 Message Date
Rodrigo Alencar
5603a07af9 iio: amplifiers: ad8366: use devm_mutex_init() and drop mutex_init()
Adopt proper mutex lifecycle with devm_mutex_init(), replacing
mutex_init(). Mutex init is moved up (before regulator init),
so that goto statement in the error path is avoided (which will
be cleaned up later).

Signed-off-by: Rodrigo Alencar <rodrigo.alencar@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-02-23 21:00:57 +00:00
Rodrigo Alencar
d9eece6f39 iio: amplifiers: ad8366: add local dev pointer to the probe function
Create local device pointer in the probe function to shorten lines, making
the code easier to read. The local device pointer replaces &spi->dev and
will be reused across other probe function places in later patches.

Signed-off-by: Rodrigo Alencar <rodrigo.alencar@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-02-23 21:00:57 +00:00
Rodrigo Alencar
5593bddbf9 iio: amplifiers: ad8366: refactor include headers
Apply IWYU principle, removing the following headers:
- linux/device.h: no usage of devm_add_action_or_reset, device_attr...
- linux/kernel.h: no usage of container_of, kasprintf, ...
- linux/slab.h: memory management handled by iio
- linux/sysfs.h: sysfs interaction is managed by iio
- linux/iio/sysfs.h: not using iio device attributes in this driver
Adding the following missing headers:
+ linux/array_size.h: for ARRAY_SIZE
+ linux/bits.h: for BIT
+ linux/dev_printk.h: for dev_err
+ linux/math.h: for abs
+ linux/mutex.h: for mutex_lock, mutex_unlock
+ linux/mod_devicetable.h: for spi_device_id
+ linux/types.h for NULL, __aligned

Additionally, those include directives are alphabetically sorted.

Signed-off-by: Rodrigo Alencar <rodrigo.alencar@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-02-23 21:00:57 +00:00
Rodrigo Alencar
3cfbb50d14 dt-bindings: iio: amplifiers: Add AD8366 support
Add device tree binding documentation for amplifiers and digital
attenuators. This covers different device variants with similar
SPI control. Each device has its own gain range and step, hence
no fallback compatibles are used.

Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Rodrigo Alencar <rodrigo.alencar@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-02-23 21:00:57 +00:00
Rodrigo Alencar
2ee227268c MAINTAINERS: Add missing maintainer entry for AD8366 driver
Add maintainers entry for drivers/iio/amplifiers/ad8366.c

Signed-off-by: Rodrigo Alencar <rodrigo.alencar@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-02-23 21:00:57 +00:00
Antoniu Miclaus
4b0d26cb9a iio: adc: ade9000: use dev_err_probe() in probe path
Replace dev_err() + return with dev_err_probe() in ade9000_reset(),
which is called during probe. This simplifies error handling.

Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-02-23 21:00:57 +00:00
Andy Shevchenko
4d9fccb3e9 iio: core: Simplify IIO core managed APIs
Use devm_add_action_or_reset() instead of devres_alloc() and
devres_add(), which works the same. This will simplify the
code. There is no functional changes.

While at it, inline devm_iio_kfifo_allocate() into its only user.

Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-02-23 21:00:47 +00:00
Antoniu Miclaus
b40be056ee iio: adc: ad7266: simplify error return
Return PTR_ERR() directly instead of assigning it to an intermediate
variable first.

Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-02-23 20:44:32 +00:00
Antoniu Miclaus
3d8fedcc62 iio: filter: admv8818: remove redundant else after return
The else in admv8818_init() is unnecessary since the if block already
returns after calling admv8818_rfin_band_select() when clkin is present.

Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-02-23 20:44:32 +00:00
Salah Triki
12b393486c iio: core: Clean up device correctly on viio_trigger_alloc() failure
Move device_initialize() after all error paths in viio_trigger_alloc().
Previously, put_device() should have been called on all error paths after
device_initialize(), but that was not done.

Rather than adding put_device(), move device_initialize() to avoid
needing to unwind it on error.

In addition move trig->dev initialization to just before device_initialize()
to related code together.

Signed-off-by: Salah Triki <salah.triki@gmail.com>
Reviewed-by: David Lechner <dlechner@baylibre.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-02-23 20:44:31 +00:00
Felix Gu
d1e13ac7c2 iio: adc: nxp-sar-adc: Remove unnecessary type casting
The readl_poll_timeout() macro returns a signed integer error code.

In nxp_sar_adc_calibration_wait(), the return value is casted to u32
before being returned as int, which is unnecessary.

Signed-off-by: Felix Gu <ustc.gu@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-02-23 20:44:31 +00:00
Archit Anant
0e2af0fc30 staging: iio: impedance-analyzer: ad5933: use div64_ul() instead of do_div()
Replace do_div() with div64_ul() since the remainder is not used.
div64_ul() is the preferred API for 64-bit by 32-bit division when
only the quotient is needed.

Also replace explicit casting and shifting with the BIT_ULL(27) macro
for clarity.

Note: A mathematical simplification to `(freq * BIT_ULL(29)) / mclk` was
suggested during review to improve precision. However, as confirmed by
maintainers, the original driver's truncation via `(mclk / 4)` might
be intentional or relied upon by userspace. Since hardware is not
available for verification, this patch preserves the original logic
to avoid regression risk in the absence of testing.

Issue identified by coccicheck using do_div.cocci.

Signed-off-by: Archit Anant <architanant5@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-02-23 20:44:19 +00:00
Gabriel Almeida
08eea726f4 iio: light: zopt2201: use lock guards
Use guard() and scoped_guard() to handle the mutex lock instead of
manually locking and unlocking it.

Signed-off-by: Gabriel Almeida <gabrielsousa230@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-02-23 08:24:24 +00:00
Gabriel Almeida
f808d21ef7 iio: light: zopt2201: Reorder header includes
Reorder the header includes to follow the usual kernel ordering
conventions and improve readability.

Signed-off-by: Gabriel Almeida <gabrielsousa230@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-02-23 08:24:24 +00:00
Pranav Kharche
1261aea929 dt-bindings: iio: dac: Fix typo in ti,dac7612.yaml
Fix a typo in the description where "Is is" should be "It is".

Signed-off-by: Pranav Kharche <pranavkharche7@gmail.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-02-23 08:24:24 +00:00
Antoniu Miclaus
419a96f824 iio: adc: ad4080: add support for AD4082, AD4085 and AD4088
Add support for the AD4082, AD4085 and AD4088 SAR ADCs. These devices
share the same resolution as their base variants but differ in LVDS CNV
clock count maximum:
  - AD4082 (20-bit, like AD4080): lvds_cnv_clk_cnt_max 8 vs 7
  - AD4085 (16-bit, like AD4084): lvds_cnv_clk_cnt_max 8 vs 2
  - AD4088 (14-bit, like AD4087): lvds_cnv_clk_cnt_max 8 vs 1

Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-02-23 08:24:24 +00:00
Antoniu Miclaus
6cfb965afe dt-bindings: iio: adc: adi,ad4080: add support for AD4082, AD4085 and AD4088
Add device tree binding support for AD4082, AD4085 and AD4088 SAR ADCs.
Add adi,ad4082, adi,ad4085 and adi,ad4088 to the compatible enum.

A fallback compatible string is not appropriate for these devices as they
differ in LVDS CNV clock count maximum from their base variants:
  - AD4082 (20-bit) vs AD4080: lvds_cnv_clk_cnt_max 8 vs 7
  - AD4085 (16-bit) vs AD4084: lvds_cnv_clk_cnt_max 8 vs 2
  - AD4088 (14-bit) vs AD4087: lvds_cnv_clk_cnt_max 8 vs 1

Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-02-23 08:24:24 +00:00
Marcelo Schmitt
a10f6dd4ee iio: adc: ad4030: Use BIT macro to improve code readability
Use BIT macro to make the list of average modes more readable.

Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Marcelo Schmitt <marcelo.schmitt@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-02-23 08:24:24 +00:00
Marcelo Schmitt
3477334682 dt-bindings: iio: adc: adi,ad4030: Reference spi-peripheral-props
AD4030 and similar devices all connect to the system as SPI peripherals.
Reference spi-peripheral-props so common SPI peripheral can be used from
ad4030 dt-binding.

Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Marcelo Schmitt <marcelo.schmitt@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-02-23 08:24:24 +00:00
Antoniu Miclaus
65d887ff21 iio: dac: max5522: simplify probe with devm_regulator_get_enable_read_voltage()
Simplify probe by using devm_regulator_get_enable_read_voltage() to
get, enable and read the regulator voltage in a single call, caching
the value at probe time.

The reference voltage for this DAC is a fixed hardware configuration
that is not expected to change at runtime, so reading it once during
probe and caching the millivolt value is sufficient.

Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-02-23 08:24:24 +00:00
Antoniu Miclaus
93f60f6721 iio: magnetometer: si7210: simplify probe with devm_regulator_get_enable_read_voltage()
Simplify probe by using devm_regulator_get_enable_read_voltage() to
get, enable and read the regulator voltage in a single call, caching
the value at probe time.

This is a functional change as VDD voltage is now read once at probe
rather than dynamically on each temperature measurement. However, in
real deployments it is very rare for VDD to change after initial probe.

Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-02-23 08:24:23 +00:00
Andy Shevchenko
0309e66abe iio: adc: ad7192: Revert "properly check spi_get_device_match_data()"
This reverts commit b7f99fa1b6.

The added code is currently a dead code. Moreover, the driver is not
designed to have any defaults effectively making driver data a mandatory
information to work with. Taking all together, revert unneeded change.

Discussion at #1 concluded in agreeing a new policy on this for IIO.

Link: https://lore.kernel.org/linux-iio/20260217080514.1288115-1-andriy.shevchenko@linux.intel.com/ #1
Reported-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-02-23 08:24:23 +00:00
Harshit Mogalapalli
d6ae9f202f iio: sca3000: simplify with spi_get_device_match_data()
Refactor each sca3000 variant with it's own chip_info struct, update the
sca3000_probe() to use spi_get_device_match_data().

Suggested-by: David Lechner <dlechner@baylibre.com>
Suggested-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-02-23 08:24:23 +00:00
Neel Bullywon
094d5d37d3 iio: magnetometer: bmc150_magn: minor formatting cleanup
Improve initializer list style for bmc150_magn_samp_freq_table by
moving the opening brace to its own line and using one entry per line
with proper indentation and spaces inside braces.

Add spaces inside braces for initializer lists in the preset table
for consistency.

Fix indentation of bmc150_magn_scan_masks array. No functional changes.

Signed-off-by: Neel Bullywon <neelb2403@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-02-23 08:24:23 +00:00
Neel Bullywon
d1fa7b316b iio: magnetometer: bmc150_magn: replace msleep with fsleep
Replace msleep(5) with fsleep(5 * USEC_PER_MSEC) to allow the kernel
to select the most appropriate delay mechanism based on duration.
Using USEC_PER_MSEC makes the unit conversion explicit.

Signed-off-by: Neel Bullywon <neelb2403@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-02-23 08:24:23 +00:00
Erikas Bitovtas
e3310a32e0 iio: light: vcnl4000: add support for Capella CM36686 and CM36672P
Add support for Capella's CM36686 and CM36672P sensors. Capella
CM36686 is an ambient light and proximity sensor that is fully
compatible with VCNL4040 and can be used as is.
CM36672P is partially compatible with VCNL4040 - it uses the same
register fields for proximity sensing, but the ambient light registers
are reserved. For CM36672P, we reuse vcnl4040_channels, but remove the
IIO_LIGHT channel and ambient light integration time.

Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Signed-off-by: Erikas Bitovtas <xerikasxx@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-02-23 08:24:23 +00:00
Erikas Bitovtas
f48bfc823c dt-bindings: iio: light: vcnl4000: add Capella CM36686 and CM36672P
Capella CM36686 is an ambient light and proximity sensor developed by
Capella Microsystems, now a subsidiary of Vishay Intertechnology Inc. It
has an I2C address of 0x60 and is fully compatible with an existing
driver for VCNL4040. Capella CM36672P is a proximity-only sensor that
is partially compatible with CM36686 - they share the same register
fields for proximity sensing, but ambient light sensor register fields
in CM36672P are reserved. Add compatibles for cm36672p and cm36686,
with a fallback for cm36686 of vcnl4040.

Signed-off-by: Erikas Bitovtas <xerikasxx@gmail.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-02-23 08:24:23 +00:00
David Lechner
196c9df178 iio: adc: ad7380: add support for multiple SPI lanes
Add support for multiple SPI lanes to increase throughput. The AD7380
family of ADCs have multiple SDO lines on the chip that can be used to
read each channel on a separate SPI lane. If wired up to a SPI
controller that supports it, the driver will now take advantage of this
feature. This allows reaching the maximum sample rate advertised in the
datasheet when combined with SPI offloading.

Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Reviewed-by: Marcelo Schmitt <marcelo.schmitt@analog.com>
Signed-off-by: David Lechner <dlechner@baylibre.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-02-23 08:24:23 +00:00
David Lechner
63670c90f0 dt-bindings: iio: adc: adi,ad7380: add spi-rx-bus-width property
Add spi-rx-bus-width property to describe how many SDO lines are wired
up on the ADC. These chips are simultaneous sampling ADCs and have one
SDO line per channel, either 2 or 4 total depending on the part number.

Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: David Lechner <dlechner@baylibre.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-02-23 08:24:23 +00:00
Ethan Tidmore
5cf5654b19 iio: adc: ad4062: Add missing IS_ERR() check
In the function ad4062_sizeof_storagebits() iio_get_current_scan_type()
is called which can return an error pointer and is not checked for it.
Also the function ad4062_sizeof_storagebits() returns type size_t but,
is only used once and the variable assigned from it is type u8.

Add check for error pointer in ad4062_sizeof_storagebits() and change
return type to int so the error code can be properly propagated and then
checked.

Fixes: 23cc922803 ("iio: adc: ad4062: Add IIO Trigger support")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <error27@gmail.com>
Closes: https://lore.kernel.org/r/202512280539.AholFF7m-lkp@intel.com/
Signed-off-by: Ethan Tidmore <ethantidmore06@gmail.com>
Reviewed-by: Jorge Marques <jorge.marques@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-02-23 08:24:22 +00:00
Antoniu Miclaus
bc2cb23607 iio: frequency: adf4350: Return -ENOMEM on memory allocation failure
adf4350_parse_dt() returns NULL only when devm_kzalloc() fails. The
caller should return -ENOMEM in this case, not -EINVAL.

Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-02-23 08:24:22 +00:00
Antoniu Miclaus
25ac1dea21 iio: adc: pac1934: Return -ENOMEM on memory allocation failure
devm_kzalloc() returns NULL on allocation failure. The appropriate error
code for this condition is -ENOMEM, not -EINVAL.

Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-02-23 08:24:22 +00:00
Yasin Lee
8e901c49ff iio: proximity: hx9023s: support firmware-name property
Add an optional firmware-name property to specify the firmware file.
If not provided, the driver falls back to the default firmware name.

Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Signed-off-by: Yasin Lee <yasin.lee.x@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-02-23 08:24:22 +00:00
Yasin Lee
577fe2fdd4 dt-bindings: iio: proximity: hx9023s: support firmware-name property
The hx9023s requires a firmware blob containing board-specific
configuration data used to initialize its internal sensing engine.

Although the silicon is identical across platforms, different products
may use different electrode layouts, PCB routing, cover materials and
mechanical stack-ups. These physical differences require distinct
calibration parameters and register configuration tables in order for
the sensor to operate correctly.

The driver has always required firmware and historically assumed a
single default firmware file name suitable for the reference design.
However, this assumption does not hold for boards with different
physical sensor layouts.

The default firmware file name remains unchanged and continues to be
used for existing platforms. Allowing the firmware file name to be
specified via device tree enables selecting the appropriate
hardware-specific configuration when the board design differs.

This property does not change the existing ABI and is optional.

Signed-off-by: Yasin Lee <yasin.lee.x@gmail.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-02-23 08:24:22 +00:00
Tomas Melin
2e47110413 iio: adc: ad9467: check for backend capabilities
Add capability checks for operation with backends that do not necessarily
support full set of features, but are otherwise compatible with the device.
This ensures a fully functional device, but with limited capabilities.

Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Reviewed-by: David Lechner <dlechner@baylibre.com>
Signed-off-by: Tomas Melin <tomas.melin@vaisala.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-02-23 08:24:22 +00:00
Tomas Melin
89443dc784 iio: adc: ad9467: simplify device pointer in probe
Create alias for the device pointer to simplify referencing
and keeping syntax and column width shorter.

Suggested-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Signed-off-by: Tomas Melin <tomas.melin@vaisala.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-02-23 08:24:22 +00:00
Tomas Melin
519ecb5f10 iio: adc: sd_adc_modulator: define supported iio-backend capabilities
This backend supports the added CAP_ENABLE capability.

Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Reviewed-by: David Lechner <dlechner@baylibre.com>
Signed-off-by: Tomas Melin <tomas.melin@vaisala.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-02-23 08:24:22 +00:00
Tomas Melin
9db3e8ddca iio: dac: adi-axi-dac: define supported iio-backend capabilities
Backends support the buffer/enable capabilities so advertise it
while registering in case a frontend makes checks for it.

Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Reviewed-by: David Lechner <dlechner@baylibre.com>
Signed-off-by: Tomas Melin <tomas.melin@vaisala.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-02-23 08:24:21 +00:00
Tomas Melin
ed3be723b0 iio: adc: adi-axi-adc: define supported iio-backend capabilities
axi-adc and axi-ad485x backend variants provide calibration support,
whereas the axi-ad408x does not. Set accordingly.

Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Reviewed-by: David Lechner <dlechner@baylibre.com>
Signed-off-by: Tomas Melin <tomas.melin@vaisala.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-02-23 08:24:21 +00:00
Tomas Melin
88440208c6 iio: industrialio-backend: support backend capabilities
Not all backends support the full set of capabilities provided by the
industrialio-backend framework. Capability bits can be used in frontends
and backends for checking for a certain feature set, or if using
related functions can be expected to fail.

Capability bits should be set by a compatible backend and provided when
registering the backend.

Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Reviewed-by: David Lechner <dlechner@baylibre.com>
Signed-off-by: Tomas Melin <tomas.melin@vaisala.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-02-23 08:24:21 +00:00
Linus Torvalds
6de23f81a5 Linux 7.0-rc1 2026-02-22 13:18:59 -08:00
Linus Torvalds
fbf3380361 fsverity fixes for v7.0-rc1
- Fix a build error on parisc
 
 - Remove the non-large-folio-aware function fsverity_verify_page()
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Merge tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fsverity/linux

Pull fsverity fixes from Eric Biggers:

 - Fix a build error on parisc

 - Remove the non-large-folio-aware function fsverity_verify_page()

* tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fsverity/linux:
  fsverity: fix build error by adding fsverity_readahead() stub
  fsverity: remove fsverity_verify_page()
  f2fs: make f2fs_verify_cluster() partially large-folio-aware
  f2fs: remove unnecessary ClearPageUptodate in f2fs_verify_cluster()
2026-02-22 13:12:04 -08:00
Linus Torvalds
75e1f66a9e Crypto library fix for v7.0-rc1
Fix a big endian specific issue in the PPC64-optimized AES code.
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Merge tag 'libcrypto-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux

Pull crypto library fix from Eric Biggers:
 "Fix a big endian specific issue in the PPC64-optimized AES code"

* tag 'libcrypto-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux:
  lib/crypto: powerpc/aes: Fix rndkey_from_vsx() on big endian CPUs
2026-02-22 13:09:33 -08:00
Mark Brown
aaf96df959 CREDITS: Add -next to Stephen Rothwell's entry
Stephen retired and stepped back from -next maintainership, update his
entry in CREDITS to recognise his 18 years of hard work making it what
it is today and all the impact it's had on our development process.

Also update to his current GnuPG key while we're here.

Acked-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: SeongJae Park <sj@kernel.org>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2026-02-22 12:11:33 -08:00
Arnd Bergmann
746b9ef5d5 x509: select CONFIG_CRYPTO_LIB_SHA256
The x509 public key code gained a dependency on the sha256 hash
implementation, causing a rare link time failure in randconfig
builds:

  arm-linux-gnueabi-ld: crypto/asymmetric_keys/x509_public_key.o: in function `x509_get_sig_params':
  x509_public_key.c:(.text.x509_get_sig_params+0x12): undefined reference to `sha256'
  arm-linux-gnueabi-ld: (sha256): Unknown destination type (ARM/Thumb) in crypto/asymmetric_keys/x509_public_key.o
  x509_public_key.c:(.text.x509_get_sig_params+0x12): dangerous relocation: unsupported relocation

Select the necessary library code from Kconfig.

Fixes: 2c62068ac8 ("x509: Separately calculate sha256 for blacklist")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Eric Biggers <ebiggers@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2026-02-22 12:09:23 -08:00
Haiyue Wang
fd1d6b9d13 xz: fix arm fdt compile error for kmalloc replacement
Align to the commit bf4afc53b7 ("Convert 'alloc_obj' family to use the
new default GFP_KERNEL argument") update the 'kmalloc_obj' declaration
for userspace to fix below compile error:

  In file included from arch/arm/boot/compressed/../../../../lib/decompress_unxz.c:241,
                   from arch/arm/boot/compressed/decompress.c:56:
  arch/arm/boot/compressed/../../../../lib/xz/xz_dec_stream.c: In function 'xz_dec_init':
  arch/arm/boot/compressed/../../../../lib/xz/xz_dec_stream.c:787:28: error: implicit declaration of function 'kmalloc_obj'; did you mean 'kmalloc'? [-Wimplicit-function-declaration]
     787 |         struct xz_dec *s = kmalloc_obj(*s);
         |                            ^~~~~~~~~~~
         |                            kmalloc

Signed-off-by: Haiyue Wang <haiyuewa@163.com>
Fixes: 69050f8d6d ("treewide: Replace kmalloc with kmalloc_obj for non-scalar types")
Fixes: bf4afc53b7 ("Convert 'alloc_obj' family to use the new default GFP_KERNEL argument")
Reviewed-by: Kees Cook <kees@kernel.org>
Acked-by: Lasse Collin <lasse.collin@tukaani.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2026-02-22 12:05:31 -08:00
Linus Torvalds
5f2eac7767 RTC for 7.0
Drivers:
  - loongson: Loongson-2K0300 support
  - s35390a: nvmem support
  - zynqmp: rework calibration
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Merge tag 'rtc-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

Pull RTC updates from Alexandre Belloni:

 - loongson: Loongson-2K0300 support

 - s35390a: nvmem support

 - zynqmp: rework calibration

* tag 'rtc-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux:
  rtc: ds1390: fix number of bytes read from RTC
  rtc: class: Remove duplicate check for alarm
  rtc: optee: simplify OP-TEE context match
  rtc: interface: Alarm race handling should not discard preceding error
  rtc: s35390a: implement nvmem support
  rtc: loongson: Add Loongson-2K0300 support
  dt-bindings: rtc: loongson: Document Loongson-2K0300 compatible
  dt-bindings: rtc: loongson: Correct Loongson-1C interrupts property
  dt-bindings: rtc: renesas,rz-rtca3: Add RZ/V2N support
  dt-bindings: rtc: cpcap: convert to schema
  rtc: zynqmp: use dynamic max and min offset ranges
  rtc: zynqmp: rework set_offset
  rtc: zynqmp: rework read_offset
  rtc: zynqmp: check calibration max value
  rtc: zynqmp: correct frequency value
  rtc: amlogic-a4: Remove IRQF_ONESHOT
  rtc: pcf8563: use correct of_node for output clock
  rtc: max31335: use correct CONFIG symbol in IS_REACHABLE()
  rtc: nvvrs: Add ARCH_TEGRA to the NV VRS RTC driver
2026-02-22 09:43:11 -08:00
Linus Torvalds
1dd419145d Rust fixes for v7.0-rc1
Toolchain and infrastructure:
 
  - Pass '-Zunstable-options' flag required by the future Rust 1.95.0.
 
  - Fix 'objtool' warning for Rust 1.84.0.
 
 'kernel' crate:
 
  - 'irq' module: add missing bound detected by the future Rust 1.95.0.
 
  - 'list' module: add missing 'unsafe' blocks and placeholder safety
    comments to macros (an issue for future callers within the crate).
 
 'pin-init' crate:
 
  - Clean Clippy warning that changed behavior in the future Rust 1.95.0.
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Merge tag 'rust-fixes-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux

Pull rust fixes from Miguel Ojeda:
 "Toolchain and infrastructure:

   - Pass '-Zunstable-options' flag required by the future Rust 1.95.0

   - Fix 'objtool' warning for Rust 1.84.0

  'kernel' crate:

   - 'irq' module: add missing bound detected by the future Rust 1.95.0

   - 'list' module: add missing 'unsafe' blocks and placeholder safety
     comments to macros (an issue for future callers within the crate)

  'pin-init' crate:

   - Clean Clippy warning that changed behavior in the future Rust
     1.95.0"

* tag 'rust-fixes-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux:
  rust: list: Add unsafe blocks for container_of and safety comments
  rust: pin-init: replace clippy `expect` with `allow`
  rust: irq: add `'static` bounds to irq callbacks
  objtool/rust: add one more `noreturn` Rust function
  rust: kbuild: pass `-Zunstable-options` for Rust 1.95.0
2026-02-22 08:43:31 -08:00
Linus Torvalds
d2ba6e9c0a rv fixes for v7.0
Summary of changes:
 
 - Fix multiple definition of __pcpu_unique_da_mon_this
 
   After refactoring monitors, we used static per-cpu variables with the
   same names across different per-cpu monitors. This is explicitly
   disallowed for modules on some architectures (alpha) or if
   CONFIG_DEBUG_FORCE_WEAK_PER_CPU is enabled (e.g. Fedora's debug
   kernel). Make sure all those variables have different names to avoid
   compilation issues.
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Merge tag 'trace-rv-7.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull runtime verifier fix from Steven Rostedt:

 - Fix multiple definition of __pcpu_unique_da_mon_this

   After refactoring monitors, we used static per-cpu variables with the
   same names across different per-cpu monitors. This is explicitly
   disallowed for modules on some architectures (alpha) or if
   CONFIG_DEBUG_FORCE_WEAK_PER_CPU is enabled (e.g. Fedora's debug
   kernel). Make sure all those variables have different names to avoid
   compilation issues.

* tag 'trace-rv-7.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  rv: Fix multiple definition of __pcpu_unique_da_mon_this
2026-02-22 08:40:13 -08:00
Kees Cook
189f164e57 Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses
Conversion performed via this Coccinelle script:

  // SPDX-License-Identifier: GPL-2.0-only
  // Options: --include-headers-for-types --all-includes --include-headers --keep-comments
  virtual patch

  @gfp depends on patch && !(file in "tools") && !(file in "samples")@
  identifier ALLOC = {kmalloc_obj,kmalloc_objs,kmalloc_flex,
 		    kzalloc_obj,kzalloc_objs,kzalloc_flex,
		    kvmalloc_obj,kvmalloc_objs,kvmalloc_flex,
		    kvzalloc_obj,kvzalloc_objs,kvzalloc_flex};
  @@

  	ALLOC(...
  -		, GFP_KERNEL
  	)

  $ make coccicheck MODE=patch COCCI=gfp.cocci

Build and boot tested x86_64 with Fedora 42's GCC and Clang:

Linux version 6.19.0+ (user@host) (gcc (GCC) 15.2.1 20260123 (Red Hat 15.2.1-7), GNU ld version 2.44-12.fc42) #1 SMP PREEMPT_DYNAMIC 1970-01-01
Linux version 6.19.0+ (user@host) (clang version 20.1.8 (Fedora 20.1.8-4.fc42), LLD 20.1.8) #1 SMP PREEMPT_DYNAMIC 1970-01-01

Signed-off-by: Kees Cook <kees@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2026-02-22 08:26:33 -08:00