linux-toradex.git/drivers/iio/amplifiers, branch master Linux kernel for Apalis and Colibri modules iio: amplifiers: adl8113: add driver support 2025-12-21T11:41:13+00:00 Antoniu Miclaus antoniu.miclaus@analog.com 2025-12-12T15:38:26+00:00 b8c7340e2c623d1dc628421fd4c1a2d89b6ea694 Add support for adl8113 10MHz to 12GHz Low Noise Amplifier with 10MHz to 14GHz bypass switches. Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> 
Add support for adl8113 10MHz to 12GHz Low Noise Amplifier with
10MHz to 14GHz bypass switches.

Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
iio: amplifiers: ad8366: make ad8366_info const 2025-07-06T09:37:52+00:00 David Lechner dlechner@baylibre.com 2025-06-28T17:01:29+00:00 9d531de209fd3d355dab8201fe2c47cfc465ecf0 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 <dlechner@baylibre.com> Link: https://patch.msgid.link/20250628-iio-const-data-12-v1-1-88029e48a26b@baylibre.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> 
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 <dlechner@baylibre.com>
Link: https://patch.msgid.link/20250628-iio-const-data-12-v1-1-88029e48a26b@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
iio: amplifiers: ada4250: use dev_err_probe() 2025-06-26T18:32:55+00:00 David Lechner dlechner@baylibre.com 2025-06-11T21:33:05+00:00 51180f03eb6f5ee82a620af534efff12d272bb86 Use dev_err_probe() when returning an error in the probe function. Signed-off-by: David Lechner <dlechner@baylibre.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://patch.msgid.link/20250611-iio-amplifiers-ada4250-simplify-data-buffer-in-init-v3-5-bf85ddea79f2@baylibre.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> 
Use dev_err_probe() when returning an error in the probe function.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20250611-iio-amplifiers-ada4250-simplify-data-buffer-in-init-v3-5-bf85ddea79f2@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
iio: amplifiers: ada4250: move offset_uv in struct 2025-06-26T18:32:55+00:00 David Lechner dlechner@baylibre.com 2025-06-11T21:33:04+00:00 e905b3dd3a735bda21ac09f24ed542d72aad942e Move offset_uv in struct ada4250_state. This keeps things logically grouped and reduces holes in the struct. Signed-off-by: David Lechner <dlechner@baylibre.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://patch.msgid.link/20250611-iio-amplifiers-ada4250-simplify-data-buffer-in-init-v3-4-bf85ddea79f2@baylibre.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> 
Move offset_uv in struct ada4250_state. This keeps things logically
grouped and reduces holes in the struct.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20250611-iio-amplifiers-ada4250-simplify-data-buffer-in-init-v3-4-bf85ddea79f2@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
iio: amplifiers: ada4250: use devm_regulator_get_enable_read_voltage() 2025-06-26T18:32:54+00:00 David Lechner dlechner@baylibre.com 2025-06-11T21:33:03+00:00 3712f11b4ed78d677f417990d083bab18584c9c3 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 <dlechner@baylibre.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://patch.msgid.link/20250611-iio-amplifiers-ada4250-simplify-data-buffer-in-init-v3-3-bf85ddea79f2@baylibre.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> 
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 <dlechner@baylibre.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20250611-iio-amplifiers-ada4250-simplify-data-buffer-in-init-v3-3-bf85ddea79f2@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
iio: amplifiers: ada4250: don't fail on bad chip ID 2025-06-26T18:32:54+00:00 David Lechner dlechner@baylibre.com 2025-06-11T21:33:02+00:00 f8a7be248f7379bf02b796a9e8e5d68fd134685a 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 <jic23@kernel.org> Closes: https://lore.kernel.org/linux-iio/20250421122409.79f5580c@jic23-huawei/ Signed-off-by: David Lechner <dlechner@baylibre.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://patch.msgid.link/20250611-iio-amplifiers-ada4250-simplify-data-buffer-in-init-v3-2-bf85ddea79f2@baylibre.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> 
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 <jic23@kernel.org>
Closes: https://lore.kernel.org/linux-iio/20250421122409.79f5580c@jic23-huawei/
Signed-off-by: David Lechner <dlechner@baylibre.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20250611-iio-amplifiers-ada4250-simplify-data-buffer-in-init-v3-2-bf85ddea79f2@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
iio: amplifiers: ada4250: used dev local variable 2025-06-26T18:32:54+00:00 David Lechner dlechner@baylibre.com 2025-06-11T21:33:01+00:00 788d6060f19b07b007f2e0a46b8e51748b45a669 Replace local spi variable with dev in ada4250_init() since spi is not used directly. Signed-off-by: David Lechner <dlechner@baylibre.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://patch.msgid.link/20250611-iio-amplifiers-ada4250-simplify-data-buffer-in-init-v3-1-bf85ddea79f2@baylibre.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> 
Replace local spi variable with dev in ada4250_init() since spi is not
used directly.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20250611-iio-amplifiers-ada4250-simplify-data-buffer-in-init-v3-1-bf85ddea79f2@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
iio: amplifiers: ada4250: use DMA-safe memory for regmap_bulk_read() 2025-06-09T06:45:35+00:00 David Lechner dlechner@baylibre.com 2025-04-18T18:16:13+00:00 c5858465a695c88fd427d1930c868750321b0409 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 <dlechner@baylibre.com> Link: https://patch.msgid.link/20250418-iio-amplifiers-ada4250-simplify-data-buffer-in-init-v1-1-7e7bd6dad423@baylibre.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> 
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 <dlechner@baylibre.com>
Link: https://patch.msgid.link/20250418-iio-amplifiers-ada4250-simplify-data-buffer-in-init-v1-1-7e7bd6dad423@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
iio: normalize array sentinel style 2025-04-22T18:10:04+00:00 David Lechner dlechner@baylibre.com 2025-04-11T20:49:34+00:00 70788d26ae1c482dba843efcc0cf166c2ba36a38 Use `\t(\{ ?\},|\{\}|\{\s*/\*.*\*/\s*\},?)$` regex to find and replace the array sentinel in all IIO drivers to the same style. For some time, we've been trying to consistently use `{ }` (no trailing comma, no comment, one space between braces) for array sentinels in the IIO subsystem. Still nearly 50% of existing code uses a different style. To save reviewers from having to request this trivial change as frequently, let's normalize the style in all existing IIO drivers. At least when code is copy/pasted to new drivers, the style will be consistent. Signed-off-by: David Lechner <dlechner@baylibre.com> Reviewed-by: Andy Shevchenko <andy@kernel.org> Link: https://patch.msgid.link/20250411-iio-sentinel-normalization-v1-1-d293de3e3d93@baylibre.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> 
Use `\t(\{ ?\},|\{\}|\{\s*/\*.*\*/\s*\},?)$` 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 <dlechner@baylibre.com>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Link: https://patch.msgid.link/20250411-iio-sentinel-normalization-v1-1-d293de3e3d93@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
iio: amplifiers: hmc425a: Remove not fully correct comment 2025-04-07T18:34:10+00:00 Andy Shevchenko andriy.shevchenko@linux.intel.com 2025-03-13T16:22:53+00:00 9f7140bf23df90cdfd664dea0f0da7aacf8aeeb5 The OF match table can be used outside of OF-based platforms. Remove the (misleading) comment. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Nuno Sá <nuno.sa@analog.com> Link: https://patch.msgid.link/20250313162254.416422-1-andriy.shevchenko@linux.intel.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> 
The OF match table can be used outside of OF-based platforms.
Remove the (misleading) comment.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://patch.msgid.link/20250313162254.416422-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>