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2026-03-22iio: dac: ad5770r: fix error return in ad5770r_read_raw()Antoniu Miclaus
Return the error code from regmap_bulk_read() instead of 0 so that I/O failures are properly propagated. Fixes: cbbb819837f6 ("iio: dac: ad5770r: Add AD5770R support") Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com> Cc: <stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-03-15iio: dac: mcp47feb02: Fix Vref validation [1-999] caseAriana Lazar
Store reference voltages in uV instead of mV to avoid invalid error code in dev_err_probe() call. Vref variables store the actual value returned by devm_regulator_get_enable_read_voltage() function instead of the results of dividing it by MILLI. The corner case [1-999] divided by MILLI of the voltage reference variable value would become 0 is covered too. Fixes: bf394cc80369 ("iio: dac: adding support for Microchip MCP47FEB02") Link: https://lore.kernel.org/all/aYXvP5FLA5BvkoVX@stanley.mountain/ Signed-off-by: Ariana Lazar <ariana.lazar@microchip.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-03-01iio: dac: mcp47feb02: Fix mutex used before initializationFelix Gu
The mcp47feb02_parse_fw() function uses data->lock, but the mutex was initialized after this function in probe path. Since mcp47feb02_parse_fw() is only called from probe(), remove the lock. Fixes: bf394cc80369 ("iio: dac: adding support for Microchip MCP47FEB02") Signed-off-by: Felix Gu <ustc.gu@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-02-23iio: dac: ds4424: reject -128 RAW valueOleksij Rempel
The DS442x DAC uses sign-magnitude encoding, so -128 cannot be represented in hardware (7-bit magnitude). Previously, passing -128 resulted in a truncated value that programmed 0mA (magnitude 0) instead of the expected maximum negative current, effectively failing silently. Reject -128 to avoid producing the wrong current. Fixes: d632a2bd8ffc ("iio: dac: ds4422/ds4424 dac driver") Cc: stable@vger.kernel.org Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-02-22Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL usesKees Cook
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>
2026-02-21treewide: Replace kmalloc with kmalloc_obj for non-scalar typesKees Cook
This is the result of running the Coccinelle script from scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to avoid scalar types (which need careful case-by-case checking), and instead replace kmalloc-family calls that allocate struct or union object instances: Single allocations: kmalloc(sizeof(TYPE), ...) are replaced with: kmalloc_obj(TYPE, ...) Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...) are replaced with: kmalloc_objs(TYPE, COUNT, ...) Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...) are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...) (where TYPE may also be *VAR) The resulting allocations no longer return "void *", instead returning "TYPE *". Signed-off-by: Kees Cook <kees@kernel.org>
2026-02-02Merge tag 'iio-for-7.0a' of ↵Greg Kroah-Hartman
ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/jic23/iio into char-misc-next Jonathan writes: IIO: New device support, features and cleanup for the 6.20/7.0 cycle. Slightly messier than normal unfortunately due to some conflicts and build config bugs related to I3C drivers. One last minute Kconfig fix right at the top after a linux-next report. I've simplified the Kconfig and made it match other instances in the kernel so that should be safe enough despite short soak time in front of build bots. Merge of an immutable branch from I3C to get some stubs that were missing and caused build issues with dual I2C / I3C drivers. This also brought in a drop of some deprecated interfaces so there is also one patch to update a new driver to not use those. We are having another go at using cleanup.h magic with the IIO mode claim functions after backing out last try at this. This time we have wrappers around the new ACQUIRE() and ACQUIRE_ERR() macros. Having been burnt once, we will be taking it a bit more slowly this time wrt to wide adoption of these! Thanks in particular to Kurt for taking on this core IIO work. New Device Support ================== adi,ad18113 - New driver to support the AD18113 amplifier - an interesting device due to the external bypass paths where we need to describe what gain those paths have in DT. Longer term it will be interesting to see if this simplistic description is enough for real deployments. adi,ad4062 - New driver for the AD4060 and AD4052 SAR ADCs including trigger, event and GPIO controller support. Follow up patch replaced use of some deprecated I3C interfaces prior to the I3C immutable branch merge as that includes dropping them. adi,ad4134 - New driver for the AD4134 24bit 4 channel simultaneous sampling ADC. adi,ad7768-1, - Add support for the ADAQ767-1, ADAQ7768-1 and ADAQ7769-1 ADCs after some rework to enable the driver to support multiple device types. adi,ad9467 - Add support for the similar ad9211 ADC to this existing driver. - Make the selection of 2s comp mode explicit for normal operation and switch to offset binary when entering calibration mode. honeywell,abp2 - New driver to support this huge family (100+) of board mount pressure and temperature sensors. maxim,max22007 - New drier for this 4 channel DAC. memsic,mmc5633 - New driver for this I2C/I3C magnetometer. Follow on patches fixed up issues related to single driver supporting both bus types. microchip,mcp747feb02 - New driver for the Microchip MCP47F(E/V)B(0/1/2)1, MCP47F(E/V)B(0/1/2)2, MCP47F(E/V)B(0/1/2)4 and MCP47F(E/V)B(0/1/2)8 buffered voltage output DACs. nxp,sar-adc - New driver support ADCs found on s32g2 and s32g3 platforms. ti,ads1018 - New drier for the ADS1018 and ADS1118 SPI ADCs. ti,ads131m02 - New driver supporting ADS131M(02/03/04/06/08)24-bit simultaneous sampling ADCs. Features ======== iio-core - New IIO_DEV_ACQUIRE_DIRECT_MODE() / IIO_DEV_ACQUIRE_FAILED() + equivalents for the much rarer case where the mode needs pinning whether or not it is in direct mode. These use the ACQUIRE() / ACQUIRE_ERR() infrastructure underneath to provide both simple checks on whether we got the requested mode and to provide scope based release. Applied in a few initial drivers. adi,ad9467 - Support calibbias control adi,adf4377 - Add support to act as a clock provider. adi,adxl380 - Support low power 1KHz sampling frequency mode. Required rework of how events and filters were configured, plus applying of constraints when in this mode. rf-digital,rfd77402 - Add interrupt support as alternative to polling for completion. st,lsm6dsx - Tap event detection (after considerable driver rework) Cleanup and Minor Fixes ======================= More minor cleanup such as typos, white space etc not called out except where they were applied to a lot of drivers. Various drivers. - Use of dev_err_probe() to cleanup error handling. - Introduce local struct device and struct device_node variables to reduce duplication of getting them from containing structs. - Ensure uses of iio_trigger_generic_data_rdy_poll() set IRQF_NO_THREAD as that function calls non threaded child interrupt handlers. - Replace IRQF_ONESHOT in not thread interrupt handlers with IRQF_NO_THREAD to ensure they run as intended. Drop one unnecessary case. iio-sw-device/trigger. - Constify configs_group_operations structures. iio-buffer-dma / buffer-dma-engine - Use lockdep_assert_held() to replace WARN_ON() to check lock is correctly held. - Make use of cleanup.h magic to simplify various code paths. - Make iio_dma_buffer_init() return void rather than always success. adi,ad7766 - Replace custom interrupt handler with iio_trigger_generic_data_rdy_poll() adi,ad9832 - Drop legacy platform_data support. adi,ade9000 - Add a maintainer entry. adi,adt7316 - Move to EXPORT_GPL_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr() so the compiler can cleanly drop unused pm structures and callbacks. adi,adxl345 - Relax build constraint vs the driver that is in input so both may be built as modules and selection made at runtime. adi,adxl380 - Make sure we don't read tail entries in the hardware fifo if a partial new scan has been written. - Move to a single larger regmap_noinc_read() to read the hardware fifo. aspeed,ast2600 - Add missing interrupts property to DT binding. bosch,bmi270_i2c - Add missing MODULE_DEVICE_TABLE() macros so auto probing of modules can work. bosch,smi330 - Drop duplicate assignment of IIO_TYPE in smi330_read_avail() - Use new common field_get() and field_prep() helpers to replace local version. honeywell,mprls0025pa Fixes delayed to merge window as late in cycle and we didn't want to delay the rest of the series. - Allow Kconfig selection of specific bus sub-drivers rather than tying that to the buses themselves being supported. - Zero spi_transfer structure to avoid chance of unintentionally set fields effecting transfer. - Fix a potential timing violation wrt to the chip select to first clock edge timing. - As recent driver, take risk inherent in dropping interrupt direction from driver as that should be set by firmware. - Fix wrong reported number of data bits for channel. - Fix a pressure channel calculation bug. - Rework to allow embedding the tx buffer in the iio_priv() structure rather than requiring separate allocation. - Move the buffer clearing to the shared core bringing it into affect for SPI as well as I2C. - Stricter checks for status byte. - Greatly simplify the measurement sequence. - Add a copyright entry to reflect Petre's continued work on this driver. intersil,isl29018 - Switch from spritnf to sysfs_emit_at() to make it clear overflow can't occur. invensense,icm42600 - Allow sysfs access to temperature when buffered capture in use as it does not impact other sensor data paths. invensense,itg3200 - Check unused return value in read_raw() callback. men,z188 - Drop now duplicated module alias. rf-digital,rfd77402 - Add DT binding doc and explicit of_device_id table. - Poll for timeout with times as on datasheet, then replace opencoded version with read_poll_timeout(). sensiron,scd4x - Add missing timestamp channel. The code to push it to the buffer was there but there was no way to turn it on. vti,sca3000 - Fix resource leak if iio_device_register() fails. * tag 'iio-for-7.0a' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (144 commits) iio: magn: mmc5633: Fix Kconfig for combination of I3C as module and driver builtin iio: sca3000: Fix a resource leak in sca3000_probe() iio: proximity: rfd77402: Add interrupt handling support iio: proximity: rfd77402: Document device private data structure iio: proximity: rfd77402: Use devm-managed mutex initialization iio: proximity: rfd77402: Use kernel helper for result polling iio: proximity: rfd77402: Align polling timeout with datasheet iio: cros_ec: Allow enabling/disabling calibration mode iio: frequency: ad9523: correct kernel-doc bad line warning iio: buffer: buffer_impl.h: fix kernel-doc warnings iio: gyro: itg3200: Fix unchecked return value in read_raw MAINTAINERS: add entry for ADE9000 driver iio: accel: sca3000: remove unused last_timestamp field iio: accel: adxl372: remove unused int2_bitmask field iio: adc: ad7766: Use iio_trigger_generic_data_rdy_poll() iio: magnetometer: Remove IRQF_ONESHOT iio: Replace IRQF_ONESHOT with IRQF_NO_THREAD iio: Use IRQF_NO_THREAD iio: dac: Add MAX22007 DAC driver support dt-bindings: iio: dac: Add max22007 ...
2026-01-23iio: dac: Add MAX22007 DAC driver supportJanani Sunil
Add support for the MAX22007 4 channel DAC that drives a voltage or current output on each channel. Signed-off-by: Janani Sunil <janani.sunil@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-01-11iio: dac: ds4424: drop unused include IIO consumer headerRomain Gantois
To prepare for the introduction of namespaced exports for the IIO consumer API, remove this include directive which isn't actually used by the driver. Signed-off-by: Romain Gantois <romain.gantois@bootlin.com> Reviewed-by: Andy Shevchenko <andy@kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-01-11iio: dac: ad3552r-hs: fix out-of-bound write in ad3552r_hs_write_data_sourceMiaoqian Lin
When simple_write_to_buffer() succeeds, it returns the number of bytes actually copied to the buffer. The code incorrectly uses 'count' as the index for null termination instead of the actual bytes copied. If count exceeds the buffer size, this leads to out-of-bounds write. Add a check for the count and use the return value as the index. The bug was validated using a demo module that mirrors the original code and was tested under QEMU. Pattern of the bug: - A fixed 64-byte stack buffer is filled using count. - If count > 64, the code still does buf[count] = '\0', causing an - out-of-bounds write on the stack. Steps for reproduce: - Opens the device node. - Writes 128 bytes of A to it. - This overflows the 64-byte stack buffer and KASAN reports the OOB. Found via static analysis. This is similar to the commit da9374819eb3 ("iio: backend: fix out-of-bound write") Fixes: b1c5d68ea66e ("iio: dac: ad3552r-hs: add support for internal ramp") Cc: stable@vger.kernel.org Signed-off-by: Miaoqian Lin <linmq006@gmail.com> Reviewed-by: Nuno Sá <nuno.sa@analog.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com> Reviewed-by: David Lechner <dlechner@baylibre.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-12-31iio: dac: adi-axi-dac: Make use of dev_err_probe()Nuno Sá
Be consistent and use dev_err_probe() as in all other places in the .probe() path. While at it, remove the line break in the version condition. Yes, it goes over the 80 column limit but I do think the line break hurts readability in this case. Signed-off-by: Nuno Sá <nuno.sa@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-12-31iio: dac: adi-axi-dac: Make use of a local struct device variableNuno Sá
Use a local struct device variable to improve readability in some code paths during probe. While at it, fix some line breaks not properly aligned to the open parenthesis. Signed-off-by: Nuno Sá <nuno.sa@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-12-31iio: dac: adding support for Microchip MCP47FEB02Ariana Lazar
This is the iio driver for Microchip MCP47F(E/V)B(0/1/2)1, MCP47F(E/V)B(0/1/2)2, MCP47F(E/V)B(0/1/2)4 and MCP47F(E/V)B(0/1/2)8 series of buffered voltage output Digital-to-Analog Converters with nonvolatile or volatile memory and an I2C Interface. The families support up to 8 output channels. The devices can be 8-bit, 10-bit and 12-bit. Signed-off-by: Ariana Lazar <ariana.lazar@microchip.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-12-21iio: dac: ad5686: add AD5695R to ad5686_chip_info_tblKübrich, Andreas
The chip info for this variant (I2C, four channels, 14 bit, internal reference) seems to have been left out due to oversight, so ad5686_chip_info_tbl[ID_AD5695R] is all zeroes. Initialisation of an AD5695R still succeeds, but the resulting IIO device has no channels and no /dev/iio:device* node. Add the missing chip info to the table. Fixes: 4177381b4401 ("iio:dac:ad5686: Add AD5671R/75R/94/94R/95R/96/96R support") Signed-off-by: Andreas Kübrich <andreas.kuebrich@spektra-dresden.de> Cc: stable@vger.kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-12-06Merge tag 'char-misc-6.19-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc/IIO driver updates from Greg KH: "Here is the big set of char/misc/iio driver updates for 6.19-rc1. Lots of stuff in here including: - lots of IIO driver updates, cleanups, and additions - large interconnect driver changes as they get converted over to a dynamic system of ids - coresight driver updates - mwave driver updates - binder driver updates and changes - comedi driver fixes now that the fuzzers are being set loose on them - nvmem driver updates - new uio driver addition - lots of other small char/misc driver updates, full details in the shortlog All of these have been in linux-next for a while now" * tag 'char-misc-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (304 commits) char: applicom: fix NULL pointer dereference in ac_ioctl hangcheck-timer: fix coding style spacing hangcheck-timer: Replace %Ld with %lld hangcheck-timer: replace printk(KERN_CRIT) with pr_crit uio: Add SVA support for PCI devices via uio_pci_generic_sva.c dt-bindings: slimbus: fix warning from example intel_th: Fix error handling in intel_th_output_open misc: rp1: Fix an error handling path in rp1_probe() char: xillybus: add WQ_UNBOUND to alloc_workqueue users misc: bh1770glc: use pm_runtime_resume_and_get() in power_state_store misc: cb710: Fix a NULL vs IS_ERR() check in probe() mux: mmio: Add suspend and resume support virt: acrn: split acrn_mmio_dev_res out of acrn_mmiodev greybus: gb-beagleplay: Fix timeout handling in bootloader functions greybus: add WQ_PERCPU to alloc_workqueue users char/mwave: drop typedefs char/mwave: drop printk wrapper char/mwave: remove printk tracing char/mwave: remove unneeded fops char/mwave: remove MWAVE_FUTZ_WITH_OTHER_DEVICES ifdeffery ...
2025-11-24iio: dac: Convert to common field_prep() helperGeert Uytterhoeven
Drop the driver-specific field_prep() macro, in favor of the globally available variant from <linux/bitfield.h>. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Yury Norov (NVIDIA) <yury.norov@gmail.com>
2025-11-24iio: dac: ad3530r: #undef field_prep() before local definitionGeert Uytterhoeven
Prepare for the advent of a globally available common field_prep() macro by undefining the symbol before defining a local variant. This prevents redefinition warnings from the C preprocessor when introducing the common macro later. Suggested-by: Yury Norov <yury.norov@gmail.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Jonathan Cameron <jonathan.cameron@huawei.com> Signed-off-by: Yury Norov (NVIDIA) <yury.norov@gmail.com>
2025-11-09iio: dac: ad5446: Add AD5542 to the spi id tableMichael Hennerich
This adds support for the AD5542 single channel Current Source and Voltage Output DACs. It is similar to the AD5542A model so just use the same id. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Co-developed-by: Nuno Sá <nuno.sa@analog.com> Signed-off-by: Nuno Sá <nuno.sa@analog.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-11-09iio: dac: ad5446: Fix coding style issuesNuno Sá
Fix style issues as reported by checkpatch. Signed-off-by: Nuno Sá <nuno.sa@analog.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-11-09iio: dac: ad5446: Refactor header inclusionNuno Sá
Make sure include files are given in alphabetical order and that we include the ones that were missing and remove the ones we don't really use. Signed-off-by: Nuno Sá <nuno.sa@analog.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-11-09iio: dac: ad5446: Make use of the cleanup helpersNuno Sá
Use the auto unlocking helpers from cleanup.h. Allows for some code simplification. While at it, don't use the ternary operator in ad5446_write_dac_powerdown() and add an helper function to write the DAC code. The reason for the function was purely to avoid having to use unreachable(). Signed-off-by: Nuno Sá <nuno.sa@analog.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-11-09iio: dac: ad5446: Make use of devm_mutex_init()Nuno Sá
Use devm_mutex_init() which is helpful with CONFIG_DEBUG_MUTEXES. Signed-off-by: Nuno Sá <nuno.sa@analog.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-11-09iio: dac: ad5446: Separate I2C/SPI into different driversNuno Sá
Properly separate the I2C and SPI drivers into two different drivers living in their own source file (as usual). So that no need for the hacky ifdefery. Signed-off-by: Nuno Sá <nuno.sa@analog.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-11-09iio: dac: ad5456: Add missing DT compatiblesNuno Sá
Add missing of_device_id compatibles for the i2c and spi drivers. Signed-off-by: Nuno Sá <nuno.sa@analog.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-11-09iio: dac: ad5446: Move to single chip_info structuresNuno Sá
Do not use an array with an enum id kind of thing. Use the more maintainable chip_info variable per chip. Adapt the probe functions to use the proper helpers (for SPI and I2c). Note that in a following patch we'll also add the chip_info variables to the of_device_id tables. Hence already use the helpers that internally use device_get_match_data(). Signed-off-by: Nuno Sá <nuno.sa@analog.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-11-09iio: dac: ad5446: Don't ignore missing regulatorNuno Sá
If the chip does not have an internal reference, do not ignore a missing regulator as we won't be able to actually provide a proper scale for the DAC. Since it's now seen as an error, flip the if() logic so errors are treated first (which is the typical pattern). Signed-off-by: Nuno Sá <nuno.sa@analog.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-11-09iio: dac: ad5446: Drop duplicated spi_id entryNuno Sá
AD5600 and AD5541A are compatible so there's no need to have a dedicated entry for ID_AD5600. Suggested-by: Andy Shevchenko <andriy.shevchenko@intel.com> Signed-off-by: Nuno Sá <nuno.sa@analog.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-11-09iio: dac: ad5446: Use DMA safe buffer for transfersNuno Sá
Make sure to use DMA safe buffer. While for i2c we could be fine without them, we need it for spi anyways. As we now have DMA safe buffers, use i2c_master_send_dmasafe(). Signed-off-by: Nuno Sá <nuno.sa@analog.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-10-19iio: dac: ltc2688: use the auto lock APINuno Sá
Make use of the cleanup API so that we can simplify some code paths. Signed-off-by: Nuno Sá <nuno.sa@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-10-19iio: dac: ltc2688: make use of devm_mutex_init()Nuno Sá
Use devm_mutex_init() since it brings some benefits when CONFIG_DEBUG_MUTEXES is enabled. Signed-off-by: Nuno Sá <nuno.sa@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-09-23Merge tag 'iio-for-6.18a' of ↵Greg Kroah-Hartman
ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/jic23/iio into char-misc-next Jonathan writes: IIO: New device support, features and cleanup for 6.18 New device support ================== ad,ade9000 - New driver for this complex energy and power monitoring ADC. infineon,tlv493d - New driver for this 3D magnetic sensor. intel,dollar - New driver for this TI PMIC (part number unknown) marvel,88pm886 - Driver for this PMIC ADC. microchip,mcp9600 - Add explicit support for the mcp9601 which has some additional features over the mcp9600. rohm,bd79112 - New driver for this ADC / GPIO Chip. Features ======== Core - New helper to multiply data expressed in IIO types. - Add KUnit tests. - New IIO_ALTCURRENT type, similar to existing IIO_ALTVOLTAGE - Add some channel modifiers related to energy and power, such as reactive. adi,ad7124 - Support external clocks sources and output of the internal clocks. - Filter control. adi,ad7173 - Add filter support. Some fiddly interactions with other parameters on this device. adi,ad7779 - Add backend support which required control of the number of lanes used. liteon,ltr390 - Add runtime PM support. microchip,mcp9600 - Add support for different thermocouple types. Cleanup and minor fixes ======================= core - Switch info_mask fields to be unsigned. Not clear why they were ever signed. - Fix handling of negative channel scale in iio_convert_raw_to_processed() - Fix offset handling for channels without a scale attribute. - Improve the precision of scaling slightly. - Drop apparent handling of IIO_CHAN_INFO_PROCESSED for devices that don't have any such channels. various - Drop many pm_runtime_mark_last_busy() calls now pm_runtime_put_autosuspend() calls it internally. - Drop dev_err_probe() calls where the error code is hard coded as -ENOMEM as they don't do anything. - Drop dev_err() calls where the error code is -ENOMEM. This will reduce error prints, but memory failures generate a lot of messages anyway so unlikely we need these prints. current-sense-amplifier - Add #io-channels property this channel to be used by a consumer driver. adi,ad7124 - Fix incorrect clocks dt-binding property. - Make the mclk clock optional in DT - this is internal to the ADC so should never have been in he binding. - Fix up sample rate to comply with ABI. - Use read_avail() callback rather than opencoding similar. - Deploy guard() to clean up some lock handling. adi,ad7768 - Use devm_regulator_get_enable_read_voltage() to replace similar code. adi,ad7816 - Drop an unnecessary dev_set_drvdata() call as nothing uses the data. ad,adxl345 - Fix missing blank line before bullet list in documentation. arm,scmi - Use devm_kcalloc() for an array allocation rather than devm_kzalloc(). bosch,bmi270 - Match an ACPI ID seen in the wild. It is not spec compliant but we can't do much about that. bosch,bmp280 - Drop overly noisy dev_info() - Allow for sleeping gpio controllers. gogle,cros-ec - Drop unused location attribute that has been replaced by label. invense,icm42600 - Simplify the power management. - Use guard() to simplify some locking. maxim,max1238 - Add io-channel-cells property to dt-binding as there is an in tree consumer. microchip,mcp9600 - Specify a default value in dt-binding for the thermocouple type - General whitespace cleanup. samsung,exynos - Drop support for the S3C2410 including bindings, and touchscreen support as nothing else uses that. - Drop platform ID based binding as not used. st,vl53l0x - Fix returning the wrong variable in an error path. ti,pac1934 - Replace open coded devm_mutex_init(). xilinx,ams - Update maintainers entry. * tag 'iio-for-6.18a' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (178 commits) MAINTAINERS: Support ROHM BD79112 ADC iio: adc: Support ROHM BD79112 ADC/GPIO dt-bindings: iio: adc: ROHM BD79112 ADC/GPIO iio: pressure: bmp280: Use gpiod_set_value_cansleep() iio: pressure: bmp280: Remove noisy dev_info() iio: ABI: add filter types for ad7173 iio: adc: ad7173: support changing filter type iio: adc: ad7173: rename odr field iio: adc: ad7173: rename ad7173_chan_spec_ext_info iio: adc: Add driver for Marvell 88PM886 PMIC ADC dt-bindings: mfd: 88pm886: Add #io-channel-cells iio: ABI: document "sinc4+rej60" filter_type iio: adc: ad7124: add filter support iio: adc: ad7124: support fractional sampling_frequency iio: adc: ad7124: use guard(mutex) to simplify return paths iio: adc: ad7124: use read_avail() for scale_available iio: adc: ad7124: use clamp() iio: adc: ad7124: fix sample rate for multi-channel use Documentation: ABI: iio: add sinc4+lp docs: iio: add documentation for ade9000 driver ...
2025-09-01iio: dac: ad5421: use int type to store negative error codesQianfeng Rong
Change the 'ret' variable in ad5421_update_ctrl() from unsigned int to int, as it needs to store either negative error codes or zero returned by ad5421_write_unlocked(). Fixes: 5691b23489db ("staging:iio:dac: Add AD5421 driver") Signed-off-by: Qianfeng Rong <rongqianfeng@vivo.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com> Link: https://patch.msgid.link/20250901135726.17601-3-rongqianfeng@vivo.com Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-09-01iio: dac: ad5360: use int type to store negative error codesQianfeng Rong
Change the 'ret' variable in ad5360_update_ctrl() from unsigned int to int, as it needs to store either negative error codes or zero returned by ad5360_write_unlocked(). Fixes: a3e2940c24d3 ("staging:iio:dac: Add AD5360 driver") Signed-off-by: Qianfeng Rong <rongqianfeng@vivo.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com> Link: https://patch.msgid.link/20250901135726.17601-2-rongqianfeng@vivo.com Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-08-30iio: dac: Remove redundant pm_runtime_mark_last_busy() callsSakari Ailus
pm_runtime_put_autosuspend(), pm_runtime_put_sync_autosuspend(), pm_runtime_autosuspend() and pm_request_autosuspend() now include a call to pm_runtime_mark_last_busy(). Remove the now-redundant explicit call to pm_runtime_mark_last_busy(). Also clean up error handling in stm32_dac_set_enable_state(). Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Reviewed-by: Andy Shevchenko <andy@kernel.org> Link: https://patch.msgid.link/20250828140617.3193288-1-sakari.ailus@linux.intel.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-08-25iio: dac: Drop unnecessary -ENOMEM messagesDixit Parmar
The drivers do not require their own error messages for error -ENOMEM, memory allocation failures. So remove the dev_err() messages from the probe(). Signed-off-by: Dixit Parmar <dixitparmar19@gmail.com> Link: https://patch.msgid.link/20250822-enomam_logs-v1-3-db87f2974552@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-08-16iio: dac: ad5791: drop unused member of struct ad5791_stateNuno Sá
The regulator pointers reg_vdd and reg_vss are no longer used. So drop them. Signed-off-by: Nuno Sá <nuno.sa@analog.com> Reviewed-by: David Lechner <dlechner@baylibre.com> Link: https://patch.msgid.link/20250811-ad5791-drop-unused-v1-1-3412fbf3ba36@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-08-07treewide: rename GPIO set callbacks back to their original namesBartosz Golaszewski
The conversion of all GPIO drivers to using the .set_rv() and .set_multiple_rv() callbacks from struct gpio_chip (which - unlike their predecessors - return an integer and allow the controller drivers to indicate failures to users) is now complete and the legacy ones have been removed. Rename the new callbacks back to their original names in one sweeping change. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-07-31Merge tag 'clk-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux Pull clk updates from Stephen Boyd: "This is the usual collection of primarily clk driver updates. The big part of the diff is all the new Qualcomm clk drivers added for a few SoCs they're working on. The other two vendors with significant work this cycle are Renesas and Amlogic. Renesas adds a bunch of clks to existing drivers and supports some new SoCs while Amlogic is starting a significant refactoring to simplify their code. The core framework gained a pair of helpers to get the 'struct device' or 'struct device_node' associated with a 'struct clk_hw'. Some associated KUnit tests were added for these simple helpers as well. Beyond that core change there are lots of little fixes throughout the clk drivers for the stuff we see every day, wrong clk driver data that affects tree topology or supported frequencies, etc. They're not found until the clks are actually used by some consumer device driver. New Drivers: - Global, display, gpu, video, camera, tcsr, and rpmh clock controller for the Qualcomm Milos SoC - Camera, display, GPU, and video clock controllers for Qualcomm QCS615 - Video clock controller driver for Qualcomm SM6350 - Camera clock controller driver for Qualcomm SC8180X - I3C clocks and resets on Renesas RZ/G3E - Expanded Serial Peripheral Interface (xSPI) clocks and resets on Renesas RZ/V2H(P) and RZ/V2N - SPI (RSPI) clocks and resets on Renesas RZ/V2H(P) - SDHI and I2C clocks on Renesas RZ/T2H and RZ/N2H - Ethernet clocks and resets on Renesas RZ/G3E - Initial support for the Renesas RZ/T2H (R9A09G077) and RZ/N2H (R9A09G087) SoCs - Ethernet clocks and resets on Renesas RZ/V2H and RZ/V2N - Timer, I2C, watchdog, GPU, and USB2.0 clocks and resets on Renesas RZ/V2N Updates: - Support atomic PWMs in the PWM clk driver - clk_hw_get_dev() and clk_hw_get_of_node() helpers - Replace round_rate() with determine_rate() in various clk drivers - Convert clk DT bindings to DT schema format for DT validation - Various clk driver cleanups and refactorings from static analysis tools and possibly real humans - A lot of little fixes here and there to things like clk tree topology, missing frequencies, flagging clks as critical, etc" * tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (216 commits) clk: clocking-wizard: Fix the round rate handling for versal clk: Fix typos clk: spacemit: ccu_pll: fix error return value in recalc_rate callback clk: tegra: periph: Make tegra_clk_periph_ops static clk: tegra: periph: Fix error handling and resolve unsigned compare warning clk: imx: scu: convert from round_rate() to determine_rate() clk: imx: pllv4: convert from round_rate() to determine_rate() clk: imx: pllv3: convert from round_rate() to determine_rate() clk: imx: pllv2: convert from round_rate() to determine_rate() clk: imx: pll14xx: convert from round_rate() to determine_rate() clk: imx: pfd: convert from round_rate() to determine_rate() clk: imx: frac-pll: convert from round_rate() to determine_rate() clk: imx: fracn-gppll: convert from round_rate() to determine_rate() clk: imx: fixup-div: convert from round_rate() to determine_rate() clk: imx: cpu: convert from round_rate() to determine_rate() clk: imx: busy: convert from round_rate() to determine_rate() clk: imx: composite-93: remove round_rate() in favor of determine_rate() clk: imx: composite-8m: remove round_rate() in favor of determine_rate() clk: qcom: Remove redundant pm_runtime_mark_last_busy() calls clk: imx: Remove redundant pm_runtime_mark_last_busy() calls ...
2025-07-29Merge tag 'char-misc-6.17-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char / misc / IIO / other driver updates from Greg KH: "Here is the big set of char/misc/iio and other smaller driver subsystems for 6.17-rc1. It's a big set this time around, with the huge majority being in the iio subsystem with new drivers and dts files being added there. Highlights include: - IIO driver updates, additions, and changes making more code const and cleaning up some init logic - bus_type constant conversion changes - misc device test functions added - rust miscdevice minor fixup - unused function removals for some drivers - mei driver updates - mhi driver updates - interconnect driver updates - Android binder updates and test infrastructure added - small cdx driver updates - small comedi fixes - small nvmem driver updates - small pps driver updates - some acrn virt driver fixes for printk messages - other small driver updates All of these have been in linux-next with no reported issues" * tag 'char-misc-6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (292 commits) binder: Use seq_buf in binder_alloc kunit tests binder: Add copyright notice to new kunit files misc: ti_fpc202: Switch to of_fwnode_handle() bus: moxtet: Use dev_fwnode() pc104: move PC104 option to drivers/Kconfig drivers: virt: acrn: Don't use %pK through printk comedi: fix race between polling and detaching interconnect: qcom: Add Milos interconnect provider driver dt-bindings: interconnect: document the RPMh Network-On-Chip Interconnect in Qualcomm Milos SoC mei: more prints with client prefix mei: bus: use cldev in prints bus: mhi: host: pci_generic: Add Telit FN990B40 modem support bus: mhi: host: Detect events pointing to unexpected TREs bus: mhi: host: pci_generic: Add Foxconn T99W696 modem bus: mhi: host: Use str_true_false() helper bus: mhi: host: pci_generic: Add support for EM929x and set MRU to 32768 for better performance. bus: mhi: host: Fix endianness of BHI vector table bus: mhi: host: pci_generic: Disable runtime PM for QDU100 bus: mhi: host: pci_generic: Fix the modem name of Foxconn T99W640 dt-bindings: interconnect: qcom,msm8998-bwmon: Allow 'nonposted-mmio' ...
2025-07-14iio: dac: vf610: Simplify with devm_clk_get_enabled()Krzysztof Kozlowski
Driver is getting clock and almost immediately enabling it, with no relevant code executed between, thus the probe path and cleanups can be simplified with devm_clk_get_enabled(). Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://patch.msgid.link/20250713-iio-clk-get-enabled-v1-4-70abc1f9ce6c@linaro.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-07-14iio: adc: vf610: Simplify with dev_err_probeKrzysztof Kozlowski
Use dev_err_probe() to make error code handling simpler and handle deferred probe nicely (avoid spamming logs). Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://patch.msgid.link/20250713-iio-clk-get-enabled-v1-3-70abc1f9ce6c@linaro.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-07-14iio: adc: vf610: Drop -ENOMEM error messageKrzysztof Kozlowski
Core already prints detailed error messages on ENOMEM errors and drivers should avoid repeating it. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://patch.msgid.link/20250713-iio-clk-get-enabled-v1-2-70abc1f9ce6c@linaro.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-07-06iio: dac: ltc2688: make ltc2688_dither_ext_info constDavid Lechner
Add const qualifier to struct iio_chan_spec_ext_info ltc2688_dither_ext_info[]. This is read-only data so it can be made const. Signed-off-by: David Lechner <dlechner@baylibre.com> Link: https://patch.msgid.link/20250628-iio-const-data-16-v1-1-9b6514588b05@baylibre.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-07-06iio: dac: ad5770r: make ad5770r_rng_tbl constDavid Lechner
Add const qualifier to struct ad5770r_output_modes ad5770r_rng_tbl[]. This is read-only data so it can be made const. Signed-off-by: David Lechner <dlechner@baylibre.com> Link: https://patch.msgid.link/20250628-iio-const-data-15-v1-1-b86ae055004c@baylibre.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-30include: linux: move adi-axi-common.h out of fpgaNuno Sá
The adi-axi-common.h header has some common defines used in various ADI IPs. However they are not specific for any fpga manager so it's questionable for the header to live under include/linux/fpga. Hence let's just move one directory up and update all users. Suggested-by: Xu Yilun <yilun.xu@linux.intel.com> Acked-by: Xu Yilun <yilun.xu@intel.com> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> # for IIO Signed-off-by: Nuno Sá <nuno.sa@analog.com> Link: https://lore.kernel.org/r/20250519-dev-axi-clkgen-limits-v6-3-bc4b3b61d1d4@analog.com Acked-by: Mark Brown <broonie@kernel.org> Acked-by: Uwe Kleine-König <ukleinek@kernel.org> Reviewed-by: David Lechner <dlechner@baylibre.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2025-06-29iio: dac: ad3530r: Fix incorrect masking for channels 4-7 in powerdown modeKim Seer Paller
In the current implementation of ad3530r_set_dac_powerdown() function, the macro AD3530R_OP_MODE_CHAN_MSK(chan->channel) is used to generate the bitmask for the operating mode of a specific channel. However, this macro does not account for channels 4-7, which map to the second register AD3530R_OUTPUT_OPERATING_MODE_1 for the 8 channeled device. As a result, the bitmask is incorrectly calculated for these channels, leading to improper configuration of the powerdown mode. Resolve this issue by adjusting the channel index for channels 4-7 by subtracting 4 before applying the macro. This ensures that the correct bitmask is generated for the second register. Fixes: 93583174a3df ("iio: dac: ad3530r: Add driver for AD3530R and AD3531R") Signed-off-by: Kim Seer Paller <kimseer.paller@analog.com> Reviewed-by: David Lechner <dlechner@baylibre.com> Reviewed-by: Nuno Sá <nuno.sa@analog.com> Link: https://patch.msgid.link/20250626-bug_fix-v1-1-eb3c2b370f10@analog.com Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-26iio: dac: ad3552r: use = { } instead of memset()David Lechner
Use { } instead of memset() to zero-initialize stack memory to simplify the code. Signed-off-by: David Lechner <dlechner@baylibre.com> Reviewed-by: Nuno Sá <nuno.sa@analog.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://patch.msgid.link/20250611-iio-zero-init-stack-with-instead-of-memset-v1-15-ebb2d0a24302@baylibre.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-26iio: dac: bd79703: convert to use maple tree register cachechuguangqing
The maple tree register cache is based on a much more modern data structure than the rbtree cache and makes optimisation choices which are probably more appropriate for modern systems than those made by the rbtree cache. Signed-off-by: chuguangqing <chuguangqing@inspur.com> Link: https://patch.msgid.link/20250611085838.4761-4-chuguangqing@inspur.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-26iio: dac: ad5380: convert to use maple tree register cachechuguangqing
The maple tree register cache is based on a much more modern data structure than the rbtree cache and makes optimisation choices which are probably more appropriate for modern systems than those made by the rbtree cache. Signed-off-by: chuguangqing <chuguangqing@inspur.com> Link: https://patch.msgid.link/20250611085838.4761-3-chuguangqing@inspur.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-06-09iio: Remove single use of macro definition for driver nameWaqar Hameed
There is really no reason for having the driver name as a macro definition if it is only used once (often as `.name` in `struct device_driver`). It is also more readable this way. Remove these macro definitions and instead use the string literal directly. Signed-off-by: Waqar Hameed <waqar.hameed@axis.com> Link: https://patch.msgid.link/4840779a167e027b8be77c82f7a4f27210ef084a.1748356671.git.waqar.hameed@axis.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
generated by cgit v1.2.3 (git 2.46.0) at 2026-05-31 15:12:58 +0000