From 10dda40fb605c6468045906b0bce08e2e12c0aca Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Mon, 15 Oct 2012 10:35:00 +0100 Subject: [PATCH] staging:iio: Fix adis16203 channel offsets and scales Most of the channel offsets and scales in the adis16203 are incorrect: * Temperature scale is off by a factor of 1000 * Voltage scale is off by a factor of 1000 * Temperature offset is completely wrong This patch fixes these issues. Signed-off-by: Lars-Peter Clausen Signed-off-by: Jonathan Cameron --- drivers/staging/iio/accel/adis16203_core.c | 20 +++++++++++--------- 1 file changed, 11 insertions(+), 9 deletions(-) diff --git a/drivers/staging/iio/accel/adis16203_core.c b/drivers/staging/iio/accel/adis16203_core.c index 002fa9dfc375..e7b3441115ae 100644 --- a/drivers/staging/iio/accel/adis16203_core.c +++ b/drivers/staging/iio/accel/adis16203_core.c @@ -316,25 +316,27 @@ static int adis16203_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 = 1220; - else - *val2 = 610; + if (chan->channel == 0) { + *val = 1; + *val2 = 220000; /* 1.22 mV */ + } else { + *val = 0; + *val2 = 610000; /* 0.61 mV */ + } return IIO_VAL_INT_PLUS_MICRO; case IIO_TEMP: - *val = 0; - *val2 = -470000; + *val = -470; /* -0.47 C */ + *val2 = 0; return IIO_VAL_INT_PLUS_MICRO; case IIO_INCLI: *val = 0; - *val2 = 25000; + *val2 = 25000; /* 0.025 degree */ return IIO_VAL_INT_PLUS_MICRO; default: return -EINVAL; } case IIO_CHAN_INFO_OFFSET: - *val = 25; + *val = 25000 / -470 - 1278; /* 25 C = 1278 */ return IIO_VAL_INT; case IIO_CHAN_INFO_CALIBBIAS: bits = 14; -- 2.39.5