kernel/linux.git/drivers/iio/humidity, branch v6.18.21

iio: humditiy: hdc3020: fix units for thresholds and hysteresis

2025-10-19T10:46:24+00:00

According to the ABI the units after application of scale and offset are milli degree celsius for temperature thresholds and milli percent for relative humidity thresholds. Currently the resulting units are degree celsius for temperature thresholds and hysteresis and percent for relative humidity thresholds and hysteresis. Change scale factor to fix this issue. Fixes: 3ad0e7e5f0cb ("iio: humidity: hdc3020: add threshold events support") Reported-by: Chris Lesiak Reviewed-by: Javier Carrasco Signed-off-by: Dimitri Fedrau Cc: Signed-off-by: Jonathan Cameron

iio: humditiy: hdc3020: fix units for temperature and humidity measurement

2025-10-19T10:46:24+00:00

According to the ABI the units after application of scale and offset are milli degrees for temperature measurements and milli percent for relative humidity measurements. Currently the resulting units are degree celsius for temperature measurements and percent for relative humidity measurements. Change scale factor to fix this issue. Fixes: c9180b8e39be ("iio: humidity: Add driver for ti HDC302x humidity sensors") Reported-by: Chris Lesiak Suggested-by: Chris Lesiak Reviewed-by: Javier Carrasco Signed-off-by: Dimitri Fedrau Cc: Signed-off-by: Jonathan Cameron

iio: humidity: Drop unnecessary -ENOMEM messages

2025-08-25T11:35:39+00:00

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 Link: https://patch.msgid.link/20250822-enomam_logs-v1-5-db87f2974552@gmail.com Signed-off-by: Jonathan Cameron

iio: Remove single use of macro definition for driver name

2025-06-09T06:45:36+00:00

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 Link: https://patch.msgid.link/4840779a167e027b8be77c82f7a4f27210ef084a.1748356671.git.waqar.hameed@axis.com Signed-off-by: Jonathan Cameron

iio: normalize array sentinel style

2025-04-22T18:10:04+00:00

Use `\t(\{ ?\},|\{\}|\{\s*/\*.*\*/\s*\},?)$` regex to find and replace the array sentinel in all IIO drivers to the same style. For some time, we've been trying to consistently use `{ }` (no trailing comma, no comment, one space between braces) for array sentinels in the IIO subsystem. Still nearly 50% of existing code uses a different style. To save reviewers from having to request this trivial change as frequently, let's normalize the style in all existing IIO drivers. At least when code is copy/pasted to new drivers, the style will be consistent. Signed-off-by: David Lechner Reviewed-by: Andy Shevchenko Link: https://patch.msgid.link/20250411-iio-sentinel-normalization-v1-1-d293de3e3d93@baylibre.com Signed-off-by: Jonathan Cameron

iio: humidity: hts211: Switch to sparse friendly iio_device_claim/release_direct()

2025-04-22T18:09:59+00:00

These new functions allow sparse to find failures to release direct mode reducing chances of bugs over the claim_direct_mode() functions that are deprecated. Acked-by: Lorenzo Bianconi Reviewed-by: David Lechner Reviewed-by: Marcelo Schmitt Link: https://patch.msgid.link/20250331121317.1694135-15-jic23@kernel.org Signed-off-by: Jonathan Cameron

iio: humidity: hts211: Factor out everything under direct mode claim into helper functions.

2025-04-22T18:09:59+00:00

Pulling out the functionality of read_raw() and write_raw() callbacks so that only the mode claim is done in the initial call allows for direct returns and simpler error handling in the new __hts211_write_raw() / __hts211_read_raw() functions. Acked-by: Lorenzo Bianconi Reviewed-by: David Lechner Reviewed-by: Marcelo Schmitt Link: https://patch.msgid.link/20250331121317.1694135-14-jic23@kernel.org Signed-off-by: Jonathan Cameron

iio: humidity: hdc2010: Switch to sparse friendly iio_device_claim/release_direct()

2025-04-22T18:09:59+00:00

These new functions allow sparse to find failures to release direct mode reducing chances of bugs over the claim_direct_mode() functions that are deprecated. Acked-by: Eugene Zaikonnikov Reviewed-by: David Lechner Reviewed-by: Marcelo Schmitt Link: https://patch.msgid.link/20250331121317.1694135-13-jic23@kernel.org Signed-off-by: Jonathan Cameron

iio: humidity: hdc100x: Switch to sparse friendly iio_device_claim/release_direct()

2025-04-22T18:09:59+00:00

These new functions allow sparse to find failures to release direct mode reducing chances of bugs over the claim_direct_mode() functions that are deprecated. Reviewed-by: David Lechner Reviewed-by: Marcelo Schmitt Link: https://patch.msgid.link/20250331121317.1694135-12-jic23@kernel.org Signed-off-by: Jonathan Cameron

iio: humidity: hdc100x: Use guard(mutex) to simplify code flow

2025-04-22T18:09:59+00:00

By using autoreleasing on the lock a number of paths can use direct returns allow earlier exit from functions. Reviewed-by: David Lechner Reviewed-by: Marcelo Schmitt Link: https://patch.msgid.link/20250331121317.1694135-11-jic23@kernel.org Signed-off-by: Jonathan Cameron