diff options
Diffstat (limited to 'drivers/iio')
| -rw-r--r-- | drivers/iio/industrialio-core.c | 5 | ||||
| -rw-r--r-- | drivers/iio/inkern.c | 3 |
2 files changed, 8 insertions, 0 deletions
diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c index 6eb24dbc081e..37650a72b31f 100644 --- a/drivers/iio/industrialio-core.c +++ b/drivers/iio/industrialio-core.c @@ -397,6 +397,11 @@ static ssize_t iio_read_channel_info(struct device *dev, val2 = do_div(tmp, 1000000000LL); val = tmp; return sprintf(buf, "%d.%09u\n", val, val2); + case IIO_VAL_FRACTIONAL_LOG2: + tmp = (s64)val * 1000000000LL >> val2; + val2 = do_div(tmp, 1000000000LL); + val = tmp; + return sprintf(buf, "%d.%09u\n", val, val2); default: return 0; } diff --git a/drivers/iio/inkern.c b/drivers/iio/inkern.c index 5230a33886c0..b394621d362c 100644 --- a/drivers/iio/inkern.c +++ b/drivers/iio/inkern.c @@ -314,6 +314,9 @@ static int iio_convert_raw_to_processed_unlocked(struct iio_channel *chan, *processed = div_s64(raw64 * (s64)scale_val * scale, scale_val2); break; + case IIO_VAL_FRACTIONAL_LOG2: + *processed = (raw64 * (s64)scale_val * scale) >> scale_val2; + break; default: return -EINVAL; } |