kernel/linux.git/drivers/iio/pressure, branch v6.18.22

iio: pressure: mprls0025pa: fix pressure calculation

2026-02-26T22:59:33+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

2026-02-26T22:59:33+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

2026-02-26T22:59:33+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

2026-02-26T22:59:33+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

2026-02-26T22:59:33+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

iio: pressure: bmp280: correct meas_time_us calculation

2025-10-13T07:38:08+00:00

Correction of meas_time_us initialization based on an observation and partial patch by David Lechner. The constant part of the measurement time (as described in the datasheet and implemented in the BM(P/E)2 Sensor API) was apparently forgotten (it was already correctly applied for the BMP380) and is now used. There was also another thinko in bmp280_wait_conv: data->oversampling_humid can actually have a value of 0 (for an oversampling_ratio of 1), so it can not be used to detect the presence of the humidity measurement capability. Use data->chip_info->oversampling_humid_avail instead, which is NULL for chips that cannot measure humidity and therefore must skip that part of the calculation. Closes: https://lore.kernel.org/linux-iio/875xgfg0wz.fsf@Gerda.invalid/ Fixes: 26ccfaa9ddaa ("iio: pressure: bmp280: Use sleep and forced mode for oneshot captures") Suggested-by: David Lechner Tested-by: Achim Gratz Signed-off-by: Achim Gratz Cc: Signed-off-by: Jonathan Cameron

iio: pressure: bmp280: Use gpiod_set_value_cansleep()

2025-09-13T14:24:54+00:00

Replace `gpiod_set_value()` with `gpiod_set_value_cansleep()`, which is required when the GPIO controller is connected via a slow bus such as I2C. This is also safe to use in sleepable contexts like the driver probe function. Signed-off-by: Salah Triki Reviewed-by: David Lechner Reviewed-by: Andy Shevchenko Signed-off-by: Jonathan Cameron

iio: pressure: bmp280: Remove noisy dev_info()

2025-09-13T14:22:17+00:00

Remove `dev_info()` call as it was considered noisy and is not necessary for normal driver operation. Signed-off-by: Salah Triki Reviewed-by: David Lechner Reviewed-by: Andy Shevchenko Signed-off-by: Jonathan Cameron

Merge tag 'v6.17-rc3' into togreg

2025-09-13T14:00:48+00:00

Linux 6.17-rc3

iio: pressure: Remove redundant pm_runtime_mark_last_busy() calls

2025-08-25T15:16:23+00:00

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-reduntant explicit call to pm_runtime_mark_last_busy(). Signed-off-by: Sakari Ailus Link: https://patch.msgid.link/20250825135401.1765847-11-sakari.ailus@linux.intel.com Signed-off-by: Jonathan Cameron