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authorLiam Beguin <liambeguin@gmail.com>2022-01-08 23:53:04 +0300
committerJonathan Cameron <Jonathan.Cameron@huawei.com>2022-01-30 17:37:47 +0300
commit1bca97ff95c732a516ebb68da72814194980e0a5 (patch)
treee676b90f370a09b59def525ed42045249c852678 /drivers/iio/inkern.c
parent711b6a3f4af137c4a7f759136ccd50d455095b95 (diff)
downloadlinux-1bca97ff95c732a516ebb68da72814194980e0a5.tar.xz
iio: inkern: apply consumer scale on IIO_VAL_INT cases
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>
Diffstat (limited to 'drivers/iio/inkern.c')
-rw-r--r--drivers/iio/inkern.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iio/inkern.c b/drivers/iio/inkern.c
index 0222885b334c..021e1397ffc5 100644
--- a/drivers/iio/inkern.c
+++ b/drivers/iio/inkern.c
@@ -616,7 +616,7 @@ 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)