iio: light: bu27034: Fix scale format

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commit d47b9b8429 upstream.

The driver is expecting accuracy of NANOs for intensity scale in
raw_write. The IIO core is however defaulting to MICROs. This leads the
raw-write of smallest scales to never succeed as correct selector(s) are
not found.

Fix this by implementing the .write_raw_get_fmt callback to use NANO
accuracy for writes of IIO_CHAN_INFO_SCALE.

Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com>
Fixes: e52afbd610 ("iio: light: ROHM BU27034 Ambient Light Sensor")
Link: https://lore.kernel.org/r/5369117315cf05b88cf0ccb87373fd77190f6ca2.1686648422.git.mazziesaccount@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Matti Vaittinen 2023-06-13 12:34:36 +03:00 • committed by Greg Kroah-Hartman

parent a4b34cccff

commit 8e744d466d

1 changed files with 19 additions and 3 deletions

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drivers/iio/light/rohm-bu27034.c

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