@@ -402,6 +402,19 @@ static int admv8818_read_lpf_freq(struct admv8818_state *st, u64 *lpf_freq)
return ret;
}
+static int admv8818_write_raw_get_fmt(struct iio_dev *indio_dev,
+ struct iio_chan_spec const *chan,
+ long mask)
+{
+ switch (mask) {
+ case IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY:
+ case IIO_CHAN_INFO_HIGH_PASS_FILTER_3DB_FREQUENCY:
+ return IIO_VAL_INT_64;
+ default:
+ return -EINVAL;
+ }
+}
+
static int admv8818_write_raw(struct iio_dev *indio_dev,
struct iio_chan_spec const *chan,
int val, int val2, long info)
@@ -410,6 +423,9 @@ static int admv8818_write_raw(struct iio_dev *indio_dev,
u64 freq = ((u64)val2 << 32 | (u32)val);
+ if ((s64)freq < 0)
+ return -EINVAL;
+
switch (info) {
case IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY:
return admv8818_lpf_select(st, freq);
@@ -571,6 +587,7 @@ static int admv8818_set_mode(struct iio_dev *indio_dev,
static const struct iio_info admv8818_info = {
.write_raw = admv8818_write_raw,
+ .write_raw_get_fmt = admv8818_write_raw_get_fmt,
.read_raw = admv8818_read_raw,
.debugfs_reg_access = &admv8818_reg_access,
};