Commit acba41f8 authored by Lars-Peter Clausen's avatar Lars-Peter Clausen Committed by Jonathan Cameron

staging:iio: Fix adis16240 channel offsets and scales

Most of the channel offsets and scales in the adis16240 are incorrect:
    * Temperature scale is of by a factor of 1000
    * Voltage scale is of by a factor of 1000
    * Temperature offset is completely wrong
	* Peak scale is completely wrong

This patch fixes these issues. Also use the IIO_G_TO_M_S_2 macro for the
acceleration scale since this makes it much easier to compare it to the value
given in the datasheet.
Signed-off-by: default avatarLars-Peter Clausen <lars@metafoo.de>
Signed-off-by: default avatarJonathan Cameron <jic23@kernel.org>
parent 45240340
......@@ -373,30 +373,31 @@ static int adis16240_read_raw(struct iio_dev *indio_dev,
case IIO_CHAN_INFO_SCALE:
switch (chan->type) {
case IIO_VOLTAGE:
*val = 0;
if (chan->channel == 0)
*val2 = 4880;
else
return -EINVAL;
if (chan->channel == 0) {
*val = 4;
*val2 = 880000; /* 4.88 mV */
return IIO_VAL_INT_PLUS_MICRO;
} else {
return -EINVAL;
}
case IIO_TEMP:
*val = 0;
*val2 = 244000;
*val = 244; /* 0.244 C */
*val2 = 0;
return IIO_VAL_INT_PLUS_MICRO;
case IIO_ACCEL:
*val = 0;
*val2 = 504062;
*val2 = IIO_G_TO_M_S_2(51400); /* 51.4 mg */
return IIO_VAL_INT_PLUS_MICRO;
default:
return -EINVAL;
}
break;
case IIO_CHAN_INFO_PEAK_SCALE:
*val = 6;
*val2 = 629295;
*val = 0;
*val2 = IIO_G_TO_M_S_2(51400); /* 51.4 mg */
return IIO_VAL_INT_PLUS_MICRO;
case IIO_CHAN_INFO_OFFSET:
*val = 25;
*val = 25000 / 244 - 0x133; /* 25 C = 0x133 */
return IIO_VAL_INT;
case IIO_CHAN_INFO_CALIBBIAS:
bits = 10;
......
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