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

Merge tag 'v6.17-rc3' into togreg

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

Linux 6.17-rc3

iio: temperature: Remove redundant pm_runtime_mark_last_busy() calls

2025-08-25T15:17:09+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 Acked-by: Crt Mori Link: https://patch.msgid.link/20250825135401.1765847-13-sakari.ailus@linux.intel.com Signed-off-by: Jonathan Cameron

iio: temperature: Drop unnecessary -ENOMEM messages

2025-08-25T11:37:34+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-v1-10-db87f2974552@gmail.com Signed-off-by: Jonathan Cameron

iio: mcp9600: Add support for thermocouple-type

2025-08-25T09:36:16+00:00

dt-bindings documentation for this driver claims to support thermocouple-type, but the driver does not actually make use of the property. Implement usage of the property to configure the chip for the selected thermocouple-type. Signed-off-by: Ben Collins Reviewed-by: David Lechner Link: https://patch.msgid.link/20250822-upstream-changes-v8-5-40bb1739e3e2@watter.com Signed-off-by: Jonathan Cameron

iio: mcp9600: Recognize chip id for mcp9601

2025-08-25T09:35:36+00:00

The current driver works with mcp9601, but emits a warning because it does not recognize the chip id. MCP9601 is a superset of MCP9600. The drivers works without changes on this chipset. However, the 9601 chip supports open/closed-circuit detection if wired properly, so we'll need to be able to differentiate between them. Moved "struct mcp9600_data" up in the file since a later patch will need it and chip_info before the declarations. Signed-off-by: Ben Collins Reviewed-by: David Lechner Link: https://patch.msgid.link/20250822-upstream-changes-v8-4-40bb1739e3e2@watter.com Signed-off-by: Jonathan Cameron

iio: mcp9600: White space and fixed width cleanup

2025-08-25T09:35:17+00:00

Make tabs consistent for register definitions and also fix width to byte size. Signed-off-by: Ben Collins Reviewed-by: David Lechner Reviewed-by: Andy Shevchenko Reviewed-by: David Lechner Reviewed-by: Andy Shevchenko Link: https://patch.msgid.link/20250822-upstream-changes-v8-3-40bb1739e3e2@watter.com Signed-off-by: Jonathan Cameron

iio: temperature: mlx90635: Remove dev_err_probe() if error is -ENOMEM

2025-08-25T08:41:01+00:00

The dev_err_probe() doesn't do anything when the error is '-ENOMEM'. Therefore, remove the useless call to dev_err_probe(), and just return the value instead. Signed-off-by: Xichao Zhao Acked-by: Crt Mori Reviewed-by: Andy Shevchenko Link: https://patch.msgid.link/20250821080723.525379-8-zhao.xichao@vivo.com Signed-off-by: Jonathan Cameron

iio: Remove error prints for devm_add_action_or_reset()

2025-08-16T10:57:08+00:00

When `devm_add_action_or_reset()` fails, it is due to a failed memory allocation and will thus return `-ENOMEM`. `dev_err_probe()` doesn't do anything when error is `-ENOMEM`. Therefore, remove the useless call to `dev_err_probe()` when `devm_add_action_or_reset()` fails, and just return the value instead. Signed-off-by: Waqar Hameed Reviewed-by: Nuno Sá Reviewed-by: Andy Shevchenko Link: https://patch.msgid.link/pndectqm7te.a.out@axis.com Signed-off-by: Jonathan Cameron

iio: temperature: maxim_thermocouple: use DMA-safe buffer for spi_read()

2025-08-11T20:35:01+00:00

Replace using stack-allocated buffers with a DMA-safe buffer for use with spi_read(). This allows the driver to be safely used with DMA-enabled SPI controllers. The buffer array is also converted to a struct with a union to make the usage of the memory in the buffer more clear and ensure proper alignment. Fixes: 1f25ca11d84a ("iio: temperature: add support for Maxim thermocouple chips") Signed-off-by: David Lechner Reviewed-by: Nuno Sá Link: https://patch.msgid.link/20250721-iio-use-more-iio_declare_buffer_with_ts-3-v2-1-0c68d41ccf6c@baylibre.com Cc: Signed-off-by: Jonathan Cameron

iio: temperature: tmp006: use = { } instead of memset()

2025-06-26T18:32:57+00:00

Use { } instead of memset() to zero-initialize stack memory to simplify the code. Signed-off-by: David Lechner Reviewed-by: Nuno Sá Reviewed-by: Andy Shevchenko Link: https://patch.msgid.link/20250611-iio-zero-init-stack-with-instead-of-memset-v1-28-ebb2d0a24302@baylibre.com Signed-off-by: Jonathan Cameron