kernel/linux.git/drivers/iio/pressure, branch v6.19.12

iio: pressure: mprls0025pa: fix pressure calculation

2026-02-26T23:01:25+00:00

[ Upstream commit d63403d4e31ae537fefc5c0ee9d90f29b4fc532b ] A sign change is needed for proper calculation of the pressure. This is a minor fix since it only affects users that might have custom silicon from Honeywell that has honeywell,pmin-pascal != 0. Also due to the fact that raw pressure values can not be lower than output_min (400k-3.3M) there is no need to calculate a decimal for the offset. Fixes: 713337d9143e ("iio: pressure: Honeywell mprls0025pa pressure sensor") Signed-off-by: Petre Rodan Reviewed-by: Andy Shevchenko Signed-off-by: Jonathan Cameron Signed-off-by: Sasha Levin

iio: pressure: mprls0025pa: fix scan_type struct

2026-02-26T23:01:25+00:00

[ Upstream commit 8a228e036926f7e57421d750c3724e63f11b808a ] Fix the scan_type sign and realbits assignment. The pressure is a 24bit unsigned int between output_min and output_max. transfer function A: 10% to 90% of 2^24 transfer function B: 2.5% to 22.5% of 2^24 transfer function C: 20% to 80% of 2^24 [MPR_FUNCTION_A] = { .output_min = 1677722, .output_max = 15099494 } [MPR_FUNCTION_B] = { .output_min = 419430, .output_max = 3774874 } [MPR_FUNCTION_C] = { .output_min = 3355443, .output_max = 13421773 } Fixes: 713337d9143e ("iio: pressure: Honeywell mprls0025pa pressure sensor") Signed-off-by: Petre Rodan Reviewed-by: Andy Shevchenko Signed-off-by: Jonathan Cameron Signed-off-by: Sasha Levin

iio: pressure: mprls0025pa: fix interrupt flag

2026-02-26T23:01:25+00:00

[ Upstream commit fff3f1a7d805684e4701a70bfaeba39622b59dbc ] Interrupt falling/rising flags should only be defined in the device tree. Fixes: 713337d9143e ("iio: pressure: Honeywell mprls0025pa pressure sensor") Signed-off-by: Petre Rodan Reviewed-by: Andy Shevchenko Signed-off-by: Jonathan Cameron Signed-off-by: Sasha Levin

iio: pressure: mprls0025pa: fix SPI CS delay violation

2026-02-26T23:01:25+00:00

[ Upstream commit 583fa86ca581595b1f534a8de6d49ba8b3bf7196 ] Based on the sensor datasheet in chapter 7.6 SPI timing, Table 20, during the SPI transfer there is a minimum time interval requirement between the CS being asserted and the first clock edge (tHDSS). This minimum interval of 2.5us is being violated if two consecutive SPI transfers are queued up. Fixes: a0858f0cd28e ("iio: pressure: mprls0025pa add SPI driver") Datasheet: https://prod-edam.honeywell.com/content/dam/honeywell-edam/sps/siot/en-us/products/sensors/pressure-sensors/board-mount-pressure-sensors/micropressure-mpr-series/documents/sps-siot-mpr-series-datasheet-32332628-ciid-172626.pdf?download=false Signed-off-by: Petre Rodan Reviewed-by: Andy Shevchenko Signed-off-by: Jonathan Cameron Signed-off-by: Sasha Levin

iio: pressure: mprls0025pa: fix spi_transfer struct initialisation

2026-02-26T23:01:25+00:00

[ Upstream commit 1e0ac56c92e26115cbc8cfc639843725cb3a7d6a ] Make sure that the spi_transfer struct is zeroed out before use. Fixes: a0858f0cd28e ("iio: pressure: mprls0025pa add SPI driver") Signed-off-by: Petre Rodan Reviewed-by: Andy Shevchenko Signed-off-by: Jonathan Cameron Signed-off-by: Sasha Levin

Merge tag 'char-misc-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

2025-12-07T02:34:24+00:00

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 ...

iio: pressure: Arrange Makefile alphabetically

2025-11-16T15:22:16+00:00

Fix hp206c and st_pressure_* entries in pressure Makefiles to follow alphabetical order as per guideline mentioned in iio/pressure/Makefile. Signed-off-by: Akhilesh Patil Reviewed-by: Andy Shevchenko Signed-off-by: Jonathan Cameron

iio: mpl3115: add threshold events support

2025-11-15T18:06:47+00:00

Add support for pressure and temperature rising threshold events. For both channels *_en and *_value (in raw units) attributes are exposed. Since in write_event_config() the ctrl_reg1.active and ctrl_reg4 are modified, accessing the data->ctrl_reg{1,4} in set_trigger_state() and write_event_config() needs to be now guarded by data->lock. Otherwise, it would be possible that 2 concurrent threads executing these functions would access the data->ctrl_reg{1,4} at the same time and then one would overwrite the other's result. Signed-off-by: Antoni Pokusinski Signed-off-by: Jonathan Cameron

iio: mpl3115: use get_unaligned_be24() to retrieve pressure data

2025-11-15T18:06:47+00:00

The pressure measurement result is arranged as 20-bit unsigned value residing in three 8-bit registers. Hence, it can be retrieved using get_unaligned_be24() and by applying 4-bit shift. Reviewed-by: Marcelo Schmitt Signed-off-by: Antoni Pokusinski Signed-off-by: Jonathan Cameron

iio: pressure: adp810: Add driver for adp810 sensor

2025-11-09T12:57:04+00:00

Add driver for Aosong adp810 differential pressure and temperature sensor. This sensor provides an I2C interface for reading data. Calculate CRC of the data received using standard crc8 library to verify data integrity. Tested on TI am62x sk board with sensor connected at i2c-2. Signed-off-by: Akhilesh Patil Reviewed-by: Andy Shevchenko Signed-off-by: Jonathan Cameron