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11 daysMerge tag 'char-misc-7.1-rc1' of ↵Linus Torvalds50-351/+2239
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char / misc / IIO / and others driver updates from Greg KH: "Here is the char/misc/iio and other smaller driver subsystem updates for 7.1-rc1. Lots of stuff in here, all tiny, but relevant for the different drivers they touch. Major points in here is: - the usual large set of new IIO drivers and updates for that subsystem (the large majority of this diffstat) - lots of comedi driver updates and bugfixes - coresight driver updates - interconnect driver updates and additions - mei driver updates - binder (both rust and C versions) updates and fixes - lots of other smaller driver subsystem updates and additions All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (405 commits) coresight: tpdm: fix invalid MMIO access issue mei: me: add nova lake point H DID mei: lb: add late binding version 2 mei: bus: add mei_cldev_uuid w1: ds2490: drop redundant device reference bus: mhi: host: pci_generic: Add Telit FE912C04 modem support mei: csc: wake device while reading firmware status mei: csc: support controller with separate PCI device mei: convert PCI error to common errno mei: trace: print return value of pci_cfg_read mei: me: move trace into firmware status read mei: fix idle print specifiers mei: me: use PCI_DEVICE_DATA macro sonypi: Convert ACPI driver to a platform one misc: apds990x: fix all kernel-doc warnings most: usb: Use kzalloc_objs for endpoint address array hpet: Convert ACPI driver to a platform one misc: vmw_vmci: Fix spelling mistakes in comments parport: Remove completed item from to-do list char: remove unnecessary module_init/exit functions ...
2026-04-16Merge tag 'hwmon-for-v7.1' of ↵Linus Torvalds1-12/+2
git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging Pull hwmon updates from Guenter Roeck: "New drivers: - Lenovo Yoga/Legion fan monitoring (yogafan) - LattePanda Sigma EC - Infineon XDP720 eFuse - Microchip MCP998X New device support: - TI INA234 - Infineon XDPE1A2G5B/7B - Renesas RAA228942 and RAA228943 (isl68137) - Delta Q54SN120A1 and Q54SW120A7 (pmbus) - TI TMP110 and TMP113 (tmp102) - Sony APS-379 (pmbus) - ITE IT8689E (it87) - ASUS ROG STRIX Z790-H, X470-F, and CROSSHAIR X670E (asus-ec-sensors) - GPD Win 5 (gpd-fan) Modernization and Cleanups: - Convert asus_atk0110 and acpi_power_meter ACPI drivers to platform drivers - Remove i2c_match_id() usage in many PMBus drivers - Use guard() for mutex protection in pmbus_core - Replace sprintf() with sysfs_emit() in ads7871, emc1403, max6650, ads7828, max31722, and tc74 - Various markup and documentation improvements for yogafan and ltc4282 Bug fixes: - Fix use-after-free and missing usb_kill_urb on disconnect in powerz driver - Avoid cacheline sharing for DMA buffer in powerz driver - Fix integer overflow in power calculation on 32-bit in isl28022 driver - Fix bugs in pt5161l_read_block_data() - Propagate SPI errors and fix incorrect error codes in ads7871 driver - Fix i2c_smbus_write_byte_data wrapper argument type in max31785 driver Device tree bindings: - Convert npcm750-pwm-fan to DT schema - Add bindings for Infineon XDP720, Microchip MCP998X, Sony APS-379, Renesas RAA228942/3, Delta Q54SN120A1/7, XDPE1A2G5B/7B, Aosong AHT10/20, DHT20, and TI INA234 - Adapt moortec,mr75203 bindings for T-Head TH1520" * tag 'hwmon-for-v7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (82 commits) hwmon: (ina233) Don't check for specific errors when parsing properties hwmon: (isl28022) Don't check for specific errors when parsing properties hwmon: (pmbus/tps25990) Don't check for specific errors when parsing properties hwmon: (nct6683) Add customer ID for ASRock B650I Lightning WiFi hwmon:(pmbus/xdp720) Add support for efuse xdp720 dt-bindings: hwmon/pmbus: Add Infineon XDP720 hwmon: add support for MCP998X dt-bindings: hwmon: add support for MCP998X hwmon: (powerz) Avoid cacheline sharing for DMA buffer hwmon: (isl28022) Fix integer overflow in power calculation on 32-bit hwmon: (pt5161l) Fix bugs in pt5161l_read_block_data() hwmon: (powerz) Fix missing usb_kill_urb() on signal interrupt hwmon: (powerz) Fix use-after-free on USB disconnect hwmon: pmbus: Add support for Sony APS-379 dt-bindings: trivial-devices: Add sony,aps-379 hwmon: (yogafan) various markup improvements hwmon: (sparx5) Make it selectable for ARCH_LAN969X hwmon: (tmp102) add support for update interval hwmon: (yogafan) fix markup warning hwmon: (yogafan) Add support for Lenovo Yoga/Legion fan monitoring ...
2026-04-06Merge tag 'v7.0-rc7' into char-misc-nextGreg Kroah-Hartman8-45/+47
We need the char/misc/iio/comedi fixes in here as well for testing Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-03-31hwmon: (ina2xx) drop unused platform dataBartosz Golaszewski1-12/+2
Nobody defines struct ina2xx_platform_data. Remove platform data support from the drivers which still have it (it's effectively dead code) and remove the header. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com> Acked-by: Jonathan Cameron <jonathan.cameron@huawei.com> Link: https://lore.kernel.org/r/20260326-drop-ina2xx-pdata-v1-1-c159437bb2df@oss.qualcomm.com [groeck: Fixed continuation line alignment] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2026-03-26iio: adc: meson-saradc: add support for Meson S4Nick Xie1-0/+8
Add support for the SARADC found on the Amlogic Meson S4 SoC. According to the documentation and current testing, it is fully compatible with the G12A parameter set, so we reuse `meson_sar_adc_g12a_data` for this new compatible string. Although the device tree fallback mechanism could handle the match, a dedicated entry is added to ensure the userspace ABI correctly reports the specific part name ("meson-s4-saradc"). This allows userspace to accurately identify the exact device and maintains consistency across different firmware types where automatic fallback parsing might be problematic. Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Nick Xie <nick@khadas.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-03-25iio: adc: max11410: make vref register name arrays static constGiorgi Tchankvetadze1-2/+2
The vrefp_regs and vrefn_regs arrays are constant lookup tables and are not modified. Make them static const so they are not reinitialized on each probe call and are placed in read-only memory. Mark the pointer array as const as well to prevent unintended modification. Signed-off-by: Giorgi Tchankvetadze <giorgitchankvetadze1997@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-03-25iio: adc: ltc2309: add support for ltc2305Kyle Hsieh1-5/+44
Add support for the LTC2305 ADC to the LTC2309 driver. The LTC2305 is a 2-channel, 12-bit SAR ADC that is register-compatible with the LTC2309 but has a different channel selection mapping and count. To support multiple chips in this family, introduce ltc2309_chip_info struct to store chip-specific channel specifications and names. The probe function now uses i2c_get_match_data() to retrieve the correct configuration for the detected device. Specific channel addresses for LTC2305 (CH0, CH1, and differential pairs) are added based on the datasheet. Signed-off-by: Kyle Hsieh <kylehsieh1995@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-03-25iio: adc: ltc2309: explicitly assign hex values to channel enumsKyle Hsieh1-16/+16
The current ltc2309_channels enum relies on implicit sequential assignment. While this works for the 8-channel LTC2309, it is not intuitive and makes it difficult to support other chips in the same family that might have different bit mappings. Explicitly assign hex values to the enum members based on the channel selection bits defined in the datasheet. This improves code readability and provides a consistent pattern for future chip support. Signed-off-by: Kyle Hsieh <kylehsieh1995@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-03-22Merge tag 'v7.0-rc4' into togregJonathan Cameron1-2/+11
Linux 7.0-rc4 Required for the ds4422 series which is build upon; 5187e03b817c ("iio: dac: ds4424: reject -128 RAW value")
2026-03-22iio: adc: nxp-sar-adc: Fix DMA channel leak in trigger modeFelix Gu1-4/+5
The DMA channel was requested in nxp_sar_adc_buffer_postenable() but was only released in nxp_sar_adc_buffer_software_do_predisable(). This caused a DMA channel resource leak when operating in trigger mode. Fix this by moving dma_request_chan() from nxp_sar_adc_buffer_postenable() into nxp_sar_adc_buffer_software_do_postenable(), ensuring the DMA channel is only requested in software mode. Fixes: 4434072a893e ("iio: adc: Add the NXP SAR ADC support for the s32g2/3 platforms") Signed-off-by: Felix Gu <ustc.gu@gmail.com> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-03-22iio: adc: ad_sigma_delta: Format block commentsGiorgi Tchankvetadze1-2/+4
Format the multi-line comment in ad_sd_set_comm() according to the kernel multi-line comment style. Suggested-by: Andy Shevchenko <andriy.shevchenko@intel.com> Signed-off-by: Giorgi Tchankvetadze <giorgitchankvetadze1997@gmail.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-03-22iio: adc: ti-ads7950: use iio_push_to_buffers_with_ts_unaligned()David Lechner1-6/+5
Use iio_push_to_buffers_with_ts_unaligned() to avoid unaligned access when writing the timestamp in the rx_buf. The previous implementation would have been fine on architectures that support 4-byte alignment of 64-bit integers but could cause issues on architectures that require 8-byte alignment. Fixes: 902c4b2446d4 ("iio: adc: New driver for TI ADS7950 chips") Signed-off-by: David Lechner <dlechner@baylibre.com> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-03-21iio: adc: ti-adc161s626: use DMA-safe memory for spi_read()David Lechner1-12/+8
Add a DMA-safe buffer and use it for spi_read() instead of a stack memory. All SPI buffers must be DMA-safe. Since we only need up to 3 bytes, we just use a u8[] instead of __be16 and __be32 and change the conversion functions appropriately. Fixes: 4d671b71beef ("iio: adc: ti-adc161s626: add support for TI 1-channel differential ADCs") Signed-off-by: David Lechner <dlechner@baylibre.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-03-21iio: adc: ti-adc161s626: fix buffer read on big-endianDavid Lechner1-9/+12
Rework ti_adc_trigger_handler() to properly handle data on big-endian architectures. The scan data format is 16-bit CPU-endian, so we can't cast it to a int * on big-endian and expect it to work. Instead, we introduce a local int variable to read the data into, and then copy it to the buffer. Since the buffer isn't passed to any SPI functions, we don't need it to be DMA-safe. So we can drop it from the driver data struct and just use stack memory for the scan data. Since there is only one data value (plus timestamp), we don't need an array and can just declare a struct with the correct data type instead. Also fix alignment of iio_get_time_ns() to ( while we are touching this. Fixes: 4d671b71beef ("iio: adc: ti-adc161s626: add support for TI 1-channel differential ADCs") Signed-off-by: David Lechner <dlechner@baylibre.com> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-03-21iio: adc: ina2xx: add INA236 supportChuang Zhu1-12/+53
The calibration divisor is not directly specified in the datasheet, but can be calculated: I = Current_LSB * Current Current = ShuntVoltage * CAL / calibration_divisor CAL = 0.00512 / (Current_LSB * Rshunt) ShuntVoltage = Vshunt / ShuntVoltage_LSB => I = (0.00512 / (calibration_divisor*ShuntVoltage_LSB)) * (Vshunt / Rshunt) Ohm's law, I = Vshunt / Rshunt => 0.00512 / (calibration_divisor*ShuntVoltage_LSB) = 1 ShuntVoltage_LSB = 2.5 uV = 0.0000025 V => calibration_divisor = 2048 Signed-off-by: Chuang Zhu <git@chuang.cz> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-03-21iio: adc: add an article and use digitize instead of digitalizeShi Hao1-3/+3
Use digitize instead of digitalize, which is the correct technical term, and add an article for clarity. Signed-off-by: Shi Hao <i.shihao.999@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-03-21iio: adc: aspeed: Reserve battery sensing channel for on-demand useBilly Tsai1-7/+31
For controllers with battery sensing capability (AST2600/AST2700), the last channel uses a different circuit design optimized for battery voltage measurement. This channel should not be enabled by default along with other channels to avoid potential interference and power efficiency issues. This ensures optimal power efficiency for normal ADC operations while maintaining full functionality when battery sensing is needed. Signed-off-by: Billy Tsai <billy_tsai@aspeedtech.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-03-21iio: adc: aspeed: Replace mdelay() with fsleep() for ADC stabilization delayBilly Tsai1-3/+3
The ADC stabilization delays in compensation mode and battery sensing mode do not require atomic context. Using mdelay() here results in unnecessary busy waiting. Replace mdelay(1) with fsleep(1000) to allow the scheduler to run other tasks while waiting for the ADC to stabilize. Also fix a minor typo in the comment ("adc" -> "ADC"). Signed-off-by: Billy Tsai <billy_tsai@aspeedtech.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-03-21iio: adc: Enable multiple consecutive channels based on model dataBilly Tsai1-1/+21
Add helpers to generate channel masks and enable multiple ADC channels according to the device model's channel count. Signed-off-by: Billy Tsai <billy_tsai@aspeedtech.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-03-21iio: adc: Add battery channel definition for ADCBilly Tsai1-2/+4
Defines a constant for the battery sensing channel, typically the last channel of the ADC. Clarifies channel usage and improves code readability. Signed-off-by: Billy Tsai <billy_tsai@aspeedtech.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-03-15iio: adc: mt6359-auxadc: Fix comma spacingGiorgi Tchankvetadze1-1/+1
Fix incorrect whitespace around comma on line 325 to comply with kernel coding style. This silences checkpatch errors "ERROR: space prohibited before that ','" and "ERROR: space required after that ','". No functional change. Signed-off-by: Giorgi Tchankvetadze <giorgitchankvetadze1997@gmail.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-03-14iio: adc: ti-ads7950: remove chip_info[]David Lechner1-89/+83
Remove the chip_info[] array and related enum used for looking up chip- specific information. Instead, use individual structs directly in the module device tables. Also update to use spi_get_device_match_data() in case the devicetree table is ever used instead of the SPI device ID table. Signed-off-by: David Lechner <dlechner@baylibre.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-03-14iio: adc: palmas_gpadc: Replace leading space indentation with tabsGiorgi Tchankvetadze1-3/+3
Fix lines starting with spaces instead of tabs to comply with the kernel coding style. No functional change. Signed-off-by: Giorgi Tchankvetadze <giorgitchankvetadze1997@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-03-14iio: adc: meson: no devm for nvmem_cell_getRosen Penev1-6/+7
There is no reason to extend the lifetime of this post removal of the driver when it's only needed in one spot. Moved tsc_regmap assignment to avoid two nvmem_cell_put calls. Signed-off-by: Rosen Penev <rosenp@gmail.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-03-14iio: adc: at91-sama5d2_adc: no devm for nvmem_cell_getRosen Penev1-1/+2
There is absolutely no reason to pospone cleanup of this post driver removal. Just do it immediately. Signed-off-by: Rosen Penev <rosenp@gmail.com> Reviewed-by: Nuno Sá <nuno.sa@analog.com> Reviewed-by: Eugen Hristev <eugen.hristev@linaro.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-03-14iio: adc: max1363: Reformat enum and array initializersGiorgi Tchankvetadze1-40/+43
Reformat the device enum so each entry is on its own line and add a trailing comma to the final enumerator. Also reformat the nearby monitor speeds array for consistency. No functional change. Signed-off-by: Giorgi Tchankvetadze <giorgitchankvetadze1997@gmail.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-03-07iio: adc: aspeed: clear reference voltage bits before configuring vrefBilly Tsai1-0/+1
Ensures the reference voltage bits are cleared in the ADC engine control register before configuring the voltage reference. This avoids potential misconfigurations caused by residual bits. Fixes: 1b5ceb55fec2 ("iio: adc: aspeed: Support ast2600 adc.") Signed-off-by: Billy Tsai <billy_tsai@aspeedtech.com> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-03-07iio: adc: ti-ads1119: Reinit completion before wait_for_completion_timeout()Felix Gu1-0/+3
The completion is not reinit before wait_for_completion_timeout(), so wait_for_completion_timeout() will return immediately after the first successful completion. Fixes: a9306887eba4 ("iio: adc: ti-ads1119: Add driver") Signed-off-by: Felix Gu <ustc.gu@gmail.com> Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-03-07iio: adc: ti-ads1018: fix type overflow for data rateChunyang Chen1-1/+1
The variable 'drate' is currently defined as u8. However, the data rate values in ads1018 can reach up to 3300 Hz, which exceeds the maximum value of 255 that a u8 can hold. Change the type of 'drate' to u32 to match the data_rate_mode_to_hz array definition and ensure the data rate is handled correctly. Fixes: bf0bba486b5b ("iio: adc: Add ti-ads1018 driver") Signed-off-by: Chunyang Chen <chenchunyang0908@gmail.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com> Reviewed-by: Kurt Borja <kuurtb@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-03-07iio: adc: ti-ads7950: do not clobber gpio state in ti_ads7950_get()Dmitry Torokhov1-3/+5
GPIO state was inadvertently overwritten by the result of spi_sync(), resulting in ti_ads7950_get() only returning 0 as GPIO state (or error). Fix this by introducing a separate variable to hold the state. Fixes: c97dce792dc8 ("iio: adc: ti-ads7950: add GPIO support") Reported-by: David Lechner <dlechner@baylibre.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-03-07iio: adc: ti-ads7950: normalize return value of gpio_getDmitry Torokhov1-1/+1
The GPIO get callback is expected to return 0 or 1 (or a negative error code). Ensure that the value returned by ti_ads7950_get() for output pins is normalized to the [0, 1] range. Fixes: 86ef402d805d ("gpiolib: sanitize the return value of gpio_chip::get()") Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com> Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com> Reviewed-by: Linus Walleij <linusw@kernel.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-03-04iio: adc: cpcap-adc: add support for Mot ADCSvyatoslav Ryhel1-0/+15
Add support for ADC found in Motorola Mot board, used as a base for Atrix 4G and Droid X2 smartphones. Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-03-04iio: adc: ti-ads1015: remove unused enabled fieldAntoniu Miclaus1-1/+0
Remove unused enabled field from ads1015_channel_data struct. The field is declared but never accessed in the driver. 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>
2026-03-04iio: adc: nau7802: remove unused min_conversions fieldAntoniu Miclaus1-1/+0
Remove unused min_conversions field from nau7802_state struct. The field is declared but never accessed in the driver. 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>
2026-03-04iio: adc: max1363: remove unused requestedmask fieldAntoniu Miclaus1-2/+0
Remove unused requestedmask field from max1363_state struct. The field is declared but never accessed in the driver. 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>
2026-03-04iio: adc: ad9467: remove unused output_mode fieldAntoniu Miclaus1-1/+0
Remove unused output_mode field from ad9467_state struct. The field is declared but never accessed in the driver. Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com> Reviewed-by: Tomas Melin <tomas.melin@vaisala.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-03-04iio: adc: ad7793: remove unused int_vref_mv fieldAntoniu Miclaus1-1/+0
Remove unused int_vref_mv field from ad7793_state struct. The field is declared but never accessed in the driver. 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>
2026-03-04iio: adc: ad7768-1: remove unused mclk_div fieldAntoniu Miclaus1-1/+0
Remove unused mclk_div field from ad7768_state struct. The field is declared but never accessed in the driver. 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>
2026-03-04iio: adc: ad4080: remove unused dec_rate fieldAntoniu Miclaus1-1/+0
Remove unused dec_rate field from ad4080_state struct. The driver reads/writes decimation rate directly from hardware registers via ad4080_get_dec_rate() and ad4080_set_dec_rate() functions. 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>
2026-03-02iio: adc: ade9000: remove unused ADE9000_ST_ERROR macroGiorgi Tchankvetadze1-3/+0
The ADE9000_ST_ERROR macro references ADE9000_ST1_ERROR0 through ADE9000_ST1_ERROR3, but the actual defined symbols use the BIT suffix. Since this macro is currently unused in the driver, remove it entirely rather than fixing the names. It can be reintroduced in a future patch when it is actually needed. The individual error bit definitions (bits 28-31 of the STATUS1 register at 0x403) are retained as they follow the convention of defining all register fields. Reference: ADE9000 datasheet (Rev. B, Page 61), STATUS1 register (0x403), bits 28-31 define ERROR0 through ERROR3 status flags. Suggested-by: Andy Shevchenko <andriy.shevchenko@intel.com> Signed-off-by: Giorgi Tchankvetadze <giorgitchankvetadze1997@gmail.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-03-02iio: adc: ti-ads1119: Replace IRQF_ONESHOT with IRQF_NO_THREADFelix Gu1-4/+2
As there is no threaded handler, replace devm_request_threaded_irq() with devm_request_irq(), and as the handler calls iio_trigger_poll() which may not be called from a threaded handler replace IRQF_ONESHOT with IRQF_NO_THREAD. Since commit aef30c8d569c ("genirq: Warn about using IRQF_ONESHOT without a threaded handler"), the IRQ core checks IRQF_ONESHOT flag in IRQ request and gives a warning if there is no threaded handler. Fixes: a9306887eba4 ("iio: adc: ti-ads1119: Add driver") Signed-off-by: Felix Gu <ustc.gu@gmail.com> Reviewed-by: David Lechner <dlechner@baylibre.com> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-03-02iio: adc: ti-ads1119: Drop redundant error messageFelix Gu1-2/+1
devm_request_threaded_irq already prints an error message when failure, so the error message is redundant, drop it. Suggested-by: Andy Shevchenko <andriy.shevchenko@intel.com> Signed-off-by: Felix Gu <ustc.gu@gmail.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-03-01iio: adc: ad7768-1: add support for SPI offloadJonathan Santos2-3/+185
The AD7768-1 family supports sampling rates up to 1 MSPS, which exceeds the capabilities of conventional triggered buffer operations due to SPI transaction overhead and interrupt latency. Add SPI offload support to enable hardware-accelerated data acquisition that bypasses software SPI transactions using continuous data streaming. Signed-off-by: Jonathan Santos <Jonathan.Santos@analog.com> Reviewed-by: David Lechner <dlechner@baylibre.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-03-01iio: adc: ad7768-1: disable IRQ autoenableJonathan Santos1-1/+17
The device continuously converts data while powered up, generating interrupts in the background. Configure the IRQ to be enabled and disabled manually as needed to avoid unnecessary CPU load. Signed-off-by: Jonathan Santos <Jonathan.Santos@analog.com> Reviewed-by: David Lechner <dlechner@baylibre.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-03-01iio: adc: ad7768-1: remove switch to one-shot modeJonathan Santos1-17/+4
wideband low ripple FIR Filter is not available in one-shot mode. In order to make direct reads work for all filter options, remove the switch for one-shot mode and guarantee device is always in continuous conversion mode. Fixes: fb1d3b24ebf5 ("iio: adc: ad7768-1: add filter type and oversampling ratio attributes") Signed-off-by: Jonathan Santos <Jonathan.Santos@analog.com> Reviewed-by: David Lechner <dlechner@baylibre.com> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-03-01iio: adc: ad7768-1: fix one-shot mode data acquisitionJonathan Santos1-2/+7
According to the datasheet, one-shot mode requires a SYNC_IN pulse to trigger a new sample conversion. In the current implementation, No sync pulse was sent after switching to one-shot mode and reinit_completion() was called before mode switching, creating a race condition where spurious interrupts during mode change could trigger completion prematurely. Fix by sending a sync pulse after configuring one-shot mode and reinit_completion() to ensure it only waits for the actual conversion completion. Fixes: a5f8c7da3dbe ("iio: adc: Add AD7768-1 ADC basic support") Signed-off-by: Jonathan Santos <Jonathan.Santos@analog.com> Reviewed-by: David Lechner <dlechner@baylibre.com> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-03-01iio: adc: ad4030: Add support for ADAQ4216 and ADAQ4224Marcelo Schmitt1-3/+198
ADAQ4216 and ADAQ4224 are similar to AD4030, but feature a PGA circuitry that scales the analog input signal prior to it reaching the ADC. The PGA is controlled through a pair of pins (A0 and A1) whose state define the gain that is applied to the input signal. Add support for ADAQ4216 and ADAQ4224. Provide a list of PGA options through the IIO device channel scale available interface and enable control of the PGA through the channel scale interface. Signed-off-by: Marcelo Schmitt <marcelo.schmitt@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-03-01iio: adc: ad4030: Add SPI offload supportMarcelo Schmitt2-18/+396
AD4030 and similar ADCs can capture data at sample rates up to 2 mega samples per second (MSPS). Not all SPI controllers are able to achieve such high throughputs and even when the controller is fast enough to run transfers at the required speed, it may be costly to the CPU to handle transfer data at such high sample rates. Add SPI offload support for AD4030 and similar ADCs to enable data capture at maximum sample rates. Note that a pair of PWM devices are used for the supported setup. One of the PWM goes to the ADC CNV pin to initiate conversions while the other PWM is connected to the SPI offload trigger to signal when to fetch data from the peripheral. Note also that the PWMs must be somewhat synchronized such to make the controller run transfers only when ADC sample data is available. See Documentation/iio/ad4030.rst for details. Reviewed-by: David Lechner <dlechner@baylibre.com> Co-developed-by: Trevor Gamblin <tgamblin@baylibre.com> Signed-off-by: Trevor Gamblin <tgamblin@baylibre.com> Co-developed-by: Axel Haslam <ahaslam@baylibre.com> Signed-off-by: Axel Haslam <ahaslam@baylibre.com> Signed-off-by: Marcelo Schmitt <marcelo.schmitt@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-03-01iio: adc: fix typos found by codespellGiorgi Tchankvetadze24-29/+29
Fix various spelling mistakes in comments and error messages across drivers/iio/adc/, found by running codespell. Signed-off-by: Giorgi Tchankvetadze <giorgitchankvetadze1997@gmail.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-03-01iio: adc: ad4062: Replace IRQF_ONESHOT with IRQF_NO_THREADFelix Gu1-5/+3
In ad4062_request_irq(), when request irq for "gp1", the code uses IRQF_ONESHOT flag, which is not appropriate for a primary handler that does not have a secondary threaded handler. And since commit aef30c8d569c ("genirq: Warn about using IRQF_ONESHOT without a threaded handler"), the IRQ core checks IRQF_ONESHOT flag in IRQ request and gives a warning if there is no threaded handler. Since there is no threaded handler, replace devm_request_threaded_irq with devm_request_irq, and replace IRQF_ONESHOT with IRQF_NO_THREAD. Also remove an extraneous semicolon at the end of ad4062_write_raw_dispatch(). Found by code review, compile pass. Fixes: d5284402d28f ("iio: adc: Add support for ad4062") Signed-off-by: Felix Gu <ustc.gu@gmail.com> Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
generated by cgit v1.2.3 (git 2.39.0) at 2026-05-06 07:19:40 +0300