diff options
Diffstat (limited to 'drivers/iio')
| -rw-r--r-- | drivers/iio/adc/exynos_adc.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/iio/adc/exynos_adc.c b/drivers/iio/adc/exynos_adc.c index 22131a677445..9d29b56805cd 100644 --- a/drivers/iio/adc/exynos_adc.c +++ b/drivers/iio/adc/exynos_adc.c @@ -531,8 +531,19 @@ static int exynos_read_raw(struct iio_dev *indio_dev, unsigned long timeout; int ret; - if (mask != IIO_CHAN_INFO_RAW) + if (mask == IIO_CHAN_INFO_SCALE) { + ret = regulator_get_voltage(info->vdd); + if (ret < 0) + return ret; + + /* Regulator voltage is in uV, but need mV */ + *val = ret / 1000; + *val2 = info->data->mask; + + return IIO_VAL_FRACTIONAL; + } else if (mask != IIO_CHAN_INFO_RAW) { return -EINVAL; + } mutex_lock(&indio_dev->mlock); reinit_completion(&info->completion); @@ -683,6 +694,7 @@ static const struct iio_info exynos_adc_iio_info = { .channel = _index, \ .address = _index, \ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \ + .info_mask_shared_by_all = BIT(IIO_CHAN_INFO_SCALE), \ .datasheet_name = _id, \ } |