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Author SHA1 Message Date
Jonathan Cameron
bcf571a854 iio: dac: ad3552: Use __free(fwnode_handle) to simplify error handling.
By using this scoped based cleanup direct returns on errors are enabled
simplifying the code.

Cc: Mihail Chindris <mihail.chindris@analog.com>
Cc: Marcelo Schmitt <marcelo.schmitt1@gmail.com>
Reviewed-by: Nuno Sa <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20240330190849.1321065-8-jic23@kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-04-06 11:29:06 +01:00
Jonathan Cameron
2d766e79ba iio: dac: ad3552r: Use device_for_each_child_node_scoped()
Switching to the _scoped() version removes the need for manual
calling of fwnode_handle_put() in the paths where the code
exits the loop early. In this case that's all in error paths.

Removing the goto err; statements also allows more extensive use of
dev_err_probe() further simplifying the code.

Cc: Mihail Chindris <mihail.chindris@analog.com>
Reviewed-by: Nuno Sa <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20240330185305.1319844-8-jic23@kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-04-06 11:17:23 +01:00
Marcelo Schmitt
9a85653ed3 iio: dac: ad3552r: Correct device IDs
Device IDs for AD3542R and AD3552R were swapped leading to unintended
collection of DAC output ranges being used for each design.
Change device ID values so they are correct for each DAC chip.

Fixes: 8f2b54824b ("drivers:iio:dac: Add AD3552R driver support")
Signed-off-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com>
Reported-by: Chandrakant Minajigi <Chandrakant.Minajigi@analog.com>
Link: https://lore.kernel.org/r/011f480220799fbfabdd53896f8a2f251ad995ad.1691091324.git.marcelo.schmitt1@gmail.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-09-11 20:12:59 +01:00
Dan Carpenter
de3b9fe960 iio:dac:ad3552r: Fix an IS_ERR() vs NULL check
The fwnode_get_named_child_node() function does not return error
pointers.  It returns NULL.  Update the check accordingly.

Fixes: 8f2b54824b ("drivers:iio:dac: Add AD3552R driver support")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220404114244.GA19201@kili
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-04-10 17:57:40 +01:00
Dan Carpenter
460bfa65b0 iio: dac: ad3552r: fix signedness bug in ad3552r_reset()
The "val" variable is used to store either negative error codes from
ad3552r_read_reg_wrapper() or positive u16 values on success.  It needs
to be signed for the error handling to work correctly.

Fixes: 8f2b54824b ("drivers:iio:dac: Add AD3552R driver support")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20220316122354.GA16825@kili
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-04-04 09:19:01 +01:00
Mihail Chindris
8f2b54824b drivers:iio:dac: Add AD3552R driver support
The AD3552R-16 is a low drift ultrafast, 16-bit accuracy,
current output digital-to-analog converter (DAC) designed
to generate multiple output voltage span ranges.
The AD3552R-16 operates with a fixed 2.5V reference.

Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/ad3552r.pdf

Signed-off-by: Mihail Chindris <mihail.chindris@analog.com>
Link: https://lore.kernel.org/r/20211213110825.244347-3-mihail.chindris@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-12-16 18:00:55 +00:00