Commit 00799564 authored by Shreeya Patel's avatar Shreeya Patel Committed by Jonathan Cameron
Browse files

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: default avatarShreeya Patel <shreeya.patel@collabora.com>
Link: https://lore.kernel.org/r/20231107192005.285534-1-shreeya.patel@collabora.com


Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
parent 39dac9d0

drivers/iio/light/ltrf216a.c

+5 −5
Original line number Diff line number Diff line
@@ -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);