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| author | Liam Beguin <liambeguin@gmail.com> | 2022-01-08 23:53:04 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-04-15 15:17:57 +0300 |
| commit | 5be8a07b9574d95ced6c532775c0727dae318929 (patch) | |
| tree | 0417cade64b397a8a31245810fe59d273e7a4a5f /drivers | |
| parent | c459b27945978d3affb01e8c251c991adc045c19 (diff) | |
| download | linux-5be8a07b9574d95ced6c532775c0727dae318929.tar.xz | |
iio: inkern: apply consumer scale on IIO_VAL_INT cases
commit 1bca97ff95c732a516ebb68da72814194980e0a5 upstream.
When a consumer calls iio_read_channel_processed() and the channel has
an integer scale, the scale channel scale is applied and the processed
value is returned as expected.
On the other hand, if the consumer calls iio_convert_raw_to_processed()
the scaling factor requested by the consumer is not applied.
This for example causes the consumer to process mV when expecting uV.
Make sure to always apply the scaling factor requested by the consumer.
Fixes: 48e44ce0f881 ("iio:inkern: Add function to read the processed value")
Signed-off-by: Liam Beguin <liambeguin@gmail.com>
Reviewed-by: Peter Rosin <peda@axentia.se>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220108205319.2046348-2-liambeguin@gmail.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/iio/inkern.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iio/inkern.c b/drivers/iio/inkern.c index 5a8351c9a426..bfdac32b8552 100644 --- a/drivers/iio/inkern.c +++ b/drivers/iio/inkern.c @@ -609,7 +609,7 @@ static int iio_convert_raw_to_processed_unlocked(struct iio_channel *chan, switch (scale_type) { case IIO_VAL_INT: - *processed = raw64 * scale_val; + *processed = raw64 * scale_val * scale; break; case IIO_VAL_INT_PLUS_MICRO: if (scale_val2 < 0) |