staging:iio: Fix adis16204 channel offsets and scales

Most of the channel offsets and scales in the adis16204 are incorrect:
	* Temperature scale is off by a factor of 1000
	* Voltage scale is off by a factor of 1000
	* Acceleration is scale is in g instead of m/(s**2)
	* Temperature offset is completely wrong

This patch fixes these issues.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

1 files changed, 12 insertions, 10 deletions

diff --git a/drivers/staging/iio/accel/adis16204_core.c b/drivers/staging/iio/accel/adis16204_core.c
index 05bdb7c2c8e3..c6234c2f46aa 100644
--- a/drivers/staging/iio/accel/adis16204_core.c
+++ b/drivers/staging/iio/accel/adis16204_core.c
@@ -317,26 +317,28 @@ static int adis16204_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_ACCEL:
                         *val = 0;
                         switch (chan->channel2) {
                         case IIO_MOD_X:
                         case IIO_MOD_ROOT_SUM_SQUARED_X_Y:
-                                *val2 = 17125;
+                                *val2 = IIO_G_TO_M_S_2(17125); /* 17.125 mg */
                                 break;
                         case IIO_MOD_Y:
                         case IIO_MOD_Z:
-                                *val2 = 8407;
+                                *val2 = IIO_G_TO_M_S_2(8407); /* 8.407 mg */
                                 break;
                         }
                         return IIO_VAL_INT_PLUS_MICRO;
@@ -345,7 +347,7 @@ static int adis16204_read_raw(struct iio_dev *indio_dev,
                 }
                 break;
         case IIO_CHAN_INFO_OFFSET:
-                *val = 25;
+                *val = 25000 / -470 - 1278; /* 25 C = 1278 */
                 return IIO_VAL_INT;
         case IIO_CHAN_INFO_CALIBBIAS:
         case IIO_CHAN_INFO_PEAK: