diff options
| author | Shreeya Patel <shreeya.patel@collabora.com> | 2023-11-07 20:20:05 +0100 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2023-11-26 19:01:40 +0100 |
| commit | 00799564bafdd73db1bb0482eefbe1aba7d5e15f (patch) | |
| tree | 66e0d4459507bc8cae37a7cf5f2f6deefea2d873 /drivers/iio/light | |
| parent | iio: imu: inv_mpu6050: return callee's error code rather than -EINVAL (diff) | |
| download | linux-00799564bafdd73db1bb0482eefbe1aba7d5e15f.tar.xz linux-00799564bafdd73db1bb0482eefbe1aba7d5e15f.zip | |
iio: light: ltrf216a: Return floating point values
For better precision of input light intesity, return floating point
values through sysfs instead of an integer value
Signed-off-by: Shreeya Patel <shreeya.patel@collabora.com>
Link: https://lore.kernel.org/r/20231107192005.285534-1-shreeya.patel@collabora.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio/light')
| -rw-r--r-- | drivers/iio/light/ltrf216a.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/iio/light/ltrf216a.c b/drivers/iio/light/ltrf216a.c index 8de4dd849936..68dc48420a88 100644 --- a/drivers/iio/light/ltrf216a.c +++ b/drivers/iio/light/ltrf216a.c @@ -234,7 +234,7 @@ static int ltrf216a_read_data(struct ltrf216a_data *data, u8 addr) static int ltrf216a_get_lux(struct ltrf216a_data *data) { int ret, greendata; - u64 lux, div; + u64 lux; ret = ltrf216a_set_power_state(data, true); if (ret) @@ -246,10 +246,9 @@ static int ltrf216a_get_lux(struct ltrf216a_data *data) ltrf216a_set_power_state(data, false); - lux = greendata * 45 * LTRF216A_WIN_FAC * 100; - div = data->als_gain_fac * data->int_time_fac * 100; + lux = greendata * 45 * LTRF216A_WIN_FAC; - return div_u64(lux, div); + return lux; } static int ltrf216a_read_raw(struct iio_dev *indio_dev, @@ -279,7 +278,8 @@ static int ltrf216a_read_raw(struct iio_dev *indio_dev, if (ret < 0) return ret; *val = ret; - return IIO_VAL_INT; + *val2 = data->als_gain_fac * data->int_time_fac; + return IIO_VAL_FRACTIONAL; case IIO_CHAN_INFO_INT_TIME: mutex_lock(&data->lock); ret = ltrf216a_get_int_time(data, val, val2); |