kernel/git/stable/linux.git/drivers/iio/dac/max5821.c, branch master

Merge tag 'v7.1-rc6' into work

2026-06-02T14:24:19+00:00

Linux 7.1-rc6

iio: dac: max5821: Drop unused i2c driver data

2026-05-31T10:01:46+00:00

The .driver_data member of the single i2c_device_id array entry is unused in the driver. Drop it and also the then unused definition. While at it, convert the i2c_device_id array to a better readable named initializer. Signed-off-by: Uwe Kleine-König (The Capable Hub) Signed-off-by: Jonathan Cameron

iio: dac: max5821: fix return value check in powerdown sync

2026-05-15T11:05:34+00:00

The function max5821_sync_powerdown_mode() returned the result of i2c_master_send() directly. If a partial transfer occurred, it would be incorrectly treated as a success by the caller. While the caller currently handles the positive return value of 2 as success, this patch refactors the function to return 0 on full success and -EIO on short writes. This ensures robust error handling for incomplete transfers and improves code maintainability by using sizeof(outbuf). Fixes: 472988972737 ("iio: add support of the max5821") Signed-off-by: Salah Triki Reviewed-by: Andy Shevchenko Cc: 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: dac: max5821: use devm_regulator_get_enable_read_voltage()

2024-12-07T17:47:58+00:00

Simplify the code by using devm_regulator_get_enable_read_voltage(). Signed-off-by: David Lechner Link: https://patch.msgid.link/20241120-iio-regulator-cleanup-round-6-v1-11-d5a5360f7ec3@baylibre.com Signed-off-by: Jonathan Cameron

iio: Switch i2c drivers back to use .probe()

2023-05-21T17:54:53+00:00

After commit b8a1a4cd5a98 ("i2c: Provide a temporary .probe_new() call-back type"), all drivers being converted to .probe_new() and then 03c835f498b5 ("i2c: Switch .probe() to not take an id parameter") convert back to (the new) .probe() to be able to eventually drop .probe_new() from struct i2c_driver. Signed-off-by: Uwe Kleine-König Link: https://lore.kernel.org/r/20230515205048.19561-1-u.kleine-koenig@pengutronix.de Signed-off-by: Jonathan Cameron

iio: dac: max5821: Convert to i2c's .probe_new()

2022-11-23T20:01:41+00:00

.probe_new() doesn't get the i2c_device_id * parameter, so determine that explicitly in the probe function. Signed-off-by: Uwe Kleine-König Reviewed-by: Andy Shevchenko Link: https://lore.kernel.org/r/20221118224540.619276-91-uwe@kleine-koenig.org Signed-off-by: Jonathan Cameron

iio: dac: max5821: Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()

2022-07-18T17:48:18+00:00

Using these newer macros allows the compiler to remove the unused structure and functions when !CONFIG_PM_SLEEP + removes the need to mark pm functions __maybe_unused. Signed-off-by: Jonathan Cameron Cc: Philippe Reynes Reviewed-by: Paul Cercueil Link: https://lore.kernel.org/r/20220621202719.13644-15-jic23@kernel.org

iio: Replace strtobool() with kstrtobool()

2022-04-28T18:22:54+00:00

strtobool() is deprecated and just a wrapper around kstrtobool().Replace it with kstrtobool() so the deprecated function can be removed eventually. Suggested-by: Andy Shevchenko Signed-off-by: Lars-Peter Clausen Reviewed-by: Andy Shevchenko Link: https://lore.kernel.org/r/20220409105812.2113895-1-lars@metafoo.de Signed-off-by: Jonathan Cameron

iio: expose shared parameter in IIO_ENUM_AVAILABLE

2021-11-27T16:12:23+00:00

The shared parameter should be configurable based on its usage, and not constrained to IIO_SHARED_BY_TYPE. This patch aims to improve the flexibility in using the IIO_ENUM_AVAILABLE define and avoid redefining custom iio enums that expose the shared parameter. An example is the ad5766.c driver where IIO_ENUM_AVAILABLE_SHARED was defined in order to achieve `shared` parameter customization. The current state of the IIO_ENUM_AVAILABLE implementation will imply similar redefinitions each time a driver will require access to the `shared` parameter. An example would be admv1013 driver which will require custom device attribute for the frequency translation modes: Quadrature I/Q mode and Intermediate Frequency mode. Signed-off-by: Antoniu Miclaus Reviewed-by: Alexandru Ardelean Link: https://lore.kernel.org/r/20211119085627.6348-1-antoniu.miclaus@analog.com Signed-off-by: Jonathan Cameron