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

iio: amplifiers: ad8366: make ad8366_info const

2025-07-06T09:37:52+00:00

Add const qualifier to struct ad8366_info ad8366_infos[]. This is read-only data so it can be made const. Signed-off-by: David Lechner Link: https://patch.msgid.link/20250628-iio-const-data-12-v1-1-88029e48a26b@baylibre.com Signed-off-by: Jonathan Cameron

iio: amplifiers: ada4250: use dev_err_probe()

2025-06-26T18:32:55+00:00

Use dev_err_probe() when returning an error in the probe function. Signed-off-by: David Lechner Reviewed-by: Andy Shevchenko Link: https://patch.msgid.link/20250611-iio-amplifiers-ada4250-simplify-data-buffer-in-init-v3-5-bf85ddea79f2@baylibre.com Signed-off-by: Jonathan Cameron

iio: amplifiers: ada4250: move offset_uv in struct

2025-06-26T18:32:55+00:00

Move offset_uv in struct ada4250_state. This keeps things logically grouped and reduces holes in the struct. Signed-off-by: David Lechner Reviewed-by: Andy Shevchenko Link: https://patch.msgid.link/20250611-iio-amplifiers-ada4250-simplify-data-buffer-in-init-v3-4-bf85ddea79f2@baylibre.com Signed-off-by: Jonathan Cameron

iio: amplifiers: ada4250: use devm_regulator_get_enable_read_voltage()

2025-06-26T18:32:54+00:00

Use devm_regulator_get_enable_read_voltage() to simplify the code. Replace 1000000 with MICRO while we are touching this for better readability. Signed-off-by: David Lechner Reviewed-by: Andy Shevchenko Link: https://patch.msgid.link/20250611-iio-amplifiers-ada4250-simplify-data-buffer-in-init-v3-3-bf85ddea79f2@baylibre.com Signed-off-by: Jonathan Cameron

iio: amplifiers: ada4250: don't fail on bad chip ID

2025-06-26T18:32:54+00:00

Only print an information message instead of error message and failing to probe the device if the chip ID is not recognized. Experience shows that this can be fragile and some devices may not return the expected chip ID even though the driver is still able to work with them. Suggested-by: Jonathan Cameron Closes: https://lore.kernel.org/linux-iio/20250421122409.79f5580c@jic23-huawei/ Signed-off-by: David Lechner Reviewed-by: Andy Shevchenko Link: https://patch.msgid.link/20250611-iio-amplifiers-ada4250-simplify-data-buffer-in-init-v3-2-bf85ddea79f2@baylibre.com Signed-off-by: Jonathan Cameron

iio: amplifiers: ada4250: used dev local variable

2025-06-26T18:32:54+00:00

Replace local spi variable with dev in ada4250_init() since spi is not used directly. Signed-off-by: David Lechner Reviewed-by: Andy Shevchenko Link: https://patch.msgid.link/20250611-iio-amplifiers-ada4250-simplify-data-buffer-in-init-v3-1-bf85ddea79f2@baylibre.com Signed-off-by: Jonathan Cameron

iio: amplifiers: ada4250: use DMA-safe memory for regmap_bulk_read()

2025-06-09T06:45:35+00:00

Use DMA-safe memory instead of stack-allocated memory for the call to regmap_bulk_read() in the ada4250_init() function as this could be used directly by a SPI controller. Also remove unnecessary use of get_unaligned_le16() and explicitly include linux/types.h e.g. for __le16 while we are fixing this up. Note this is DMA issue does not appear to be an actual bug due to internals of the regmap SPI implementation. However, for IIO we are following guidance that we should not make that assumption. Signed-off-by: David Lechner Link: https://patch.msgid.link/20250418-iio-amplifiers-ada4250-simplify-data-buffer-in-init-v1-1-7e7bd6dad423@baylibre.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: amplifiers: hmc425a: Remove not fully correct comment

2025-04-07T18:34:10+00:00

The OF match table can be used outside of OF-based platforms. Remove the (misleading) comment. Signed-off-by: Andy Shevchenko Reviewed-by: Nuno Sá Link: https://patch.msgid.link/20250313162254.416422-1-andriy.shevchenko@linux.intel.com Signed-off-by: Jonathan Cameron

iio: amplifiers: hmc425a: use gpiod_multi_set_value_cansleep

2025-02-17T13:20:41+00:00

Reduce verbosity by using gpiod_multi_set_value_cansleep() instead of gpiod_set_array_value_cansleep(). Passing NULL as the 3rd argument to gpiod_set_array_value_cansleep() only needs to be done if the array was constructed manually, which is not the case here. This change effectively replaces that argument with st->gpios->array_info. The possible side effect of this change is that it could make setting the GPIOs more efficient. Reviewed-by: Linus Walleij Signed-off-by: David Lechner Link: https://patch.msgid.link/20250210-gpio-set-array-helper-v3-8-d6a673674da8@baylibre.com Signed-off-by: Jonathan Cameron