kernel/linux.git/drivers/iio/adc, branch master

Merge tag 'char-misc-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

2026-04-24T20:23:50+00:00

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 ...

Merge tag 'hwmon-for-v7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

2026-04-15T21:37:32+00:00

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 ...

Merge tag 'v7.0-rc7' into char-misc-next

2026-04-06T07:04:53+00:00

We need the char/misc/iio/comedi fixes in here as well for testing Signed-off-by: Greg Kroah-Hartman

hwmon: (ina2xx) drop unused platform data

2026-03-31T02:45:06+00:00

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 Reviewed-by: Andy Shevchenko Acked-by: Jonathan Cameron 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

iio: adc: meson-saradc: add support for Meson S4

2026-03-26T19:56:51+00:00

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 Signed-off-by: Nick Xie Signed-off-by: Jonathan Cameron

iio: adc: max11410: make vref register name arrays static const

2026-03-25T20:27:13+00:00

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 Signed-off-by: Jonathan Cameron

iio: adc: ltc2309: add support for ltc2305

2026-03-25T19:48:45+00:00

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 Signed-off-by: Jonathan Cameron

iio: adc: ltc2309: explicitly assign hex values to channel enums

2026-03-25T19:48:45+00:00

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 Signed-off-by: Jonathan Cameron

Merge tag 'v7.0-rc4' into togreg

2026-03-22T12:20:42+00:00

Linux 7.0-rc4 Required for the ds4422 series which is build upon; 5187e03b817c ("iio: dac: ds4424: reject -128 RAW value")

iio: adc: nxp-sar-adc: Fix DMA channel leak in trigger mode

2026-03-22T12:15:31+00:00

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 Cc: Signed-off-by: Jonathan Cameron