iio: gyro: ADXRS450: Add missing scale attributes

Add missing scale attributes.
Temperature data is presented as 10-bit, twos complement number.
Therefore use singed and shift accordingly.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/staging/iio/gyro/adxrs450_core.c b/drivers/staging/iio/gyro/adxrs450_core.c
index e832aea..9d33628 100644 (file)
--- a/drivers/staging/iio/gyro/adxrs450_core.c
+++ b/drivers/staging/iio/gyro/adxrs450_core.c
@@ -263,7 +263,7 @@ static int adxrs450_read_raw(struct iio_dev *indio_dev,
 {
        int ret;
        s16 t;
-       u16 ut;
+
        switch (mask) {
        case 0:
                switch (chan->type) {
@@ -276,10 +276,10 @@ static int adxrs450_read_raw(struct iio_dev *indio_dev,
                        break;
                case IIO_TEMP:
                        ret = adxrs450_spi_read_reg_16(indio_dev,
-                                                      ADXRS450_TEMP1, &ut);
+                                                      ADXRS450_TEMP1, &t);
                        if (ret)
                                break;
-                       *val = ut;
+                       *val = (t >> 6) + 225;
                        ret = IIO_VAL_INT;
                        break;
                default:
@@ -287,6 +287,20 @@ static int adxrs450_read_raw(struct iio_dev *indio_dev,
                        break;
                }
                break;
+       case IIO_CHAN_INFO_SCALE:
+               switch (chan->type) {
+               case IIO_ANGL_VEL:
+                       *val = 0;
+                       *val2 = 218166;
+                       return IIO_VAL_INT_PLUS_NANO;
+               case IIO_TEMP:
+                       *val = 200;
+                       *val2 = 0;
+                       return IIO_VAL_INT;
+               default:
+                       return -EINVAL;
+               }
+               break;
        case IIO_CHAN_INFO_QUADRATURE_CORRECTION_RAW:
                ret = adxrs450_spi_read_reg_16(indio_dev, ADXRS450_QUAD1, &t);
                if (ret)
@@ -308,11 +322,13 @@ static const struct iio_chan_spec adxrs450_channels[] = {
                .modified = 1,
                .channel2 = IIO_MOD_Z,
                .info_mask = IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT |
-               IIO_CHAN_INFO_QUADRATURE_CORRECTION_RAW_SEPARATE_BIT,
+               IIO_CHAN_INFO_QUADRATURE_CORRECTION_RAW_SEPARATE_BIT |
+               IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
        }, {
                .type = IIO_TEMP,
                .indexed = 1,
                .channel = 0,
+               .info_mask = IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
        }
 };