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[v2] iio/gyro/bmg160: Use millidegrees for temperature scale

Message ID 1550043707-13040-1-git-send-email-mike.looijmans@topic.nl (mailing list archive)
State New, archived
Headers show
Series [v2] iio/gyro/bmg160: Use millidegrees for temperature scale | expand

Commit Message

Mike Looijmans Feb. 13, 2019, 7:41 a.m. UTC
Standard unit for temperature is millidegrees Celcius, whereas this driver
was reporting in degrees. Fix the scale factor in the driver.

Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl>
---
v2: Don't touch val2 when returning IIO_VAL_INT
    Only touch val when returning a value

 drivers/iio/gyro/bmg160_core.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

Comments

Jonathan Cameron Feb. 20, 2019, 12:10 p.m. UTC | #1
On Wed, 13 Feb 2019 08:41:47 +0100
Mike Looijmans <mike.looijmans@topic.nl> wrote:

> Standard unit for temperature is millidegrees Celcius, whereas this driver
> was reporting in degrees. Fix the scale factor in the driver.
> 
> Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl>
Applied to the fixes-togreg branch of iio.git and marked for stable.

Thanks,

Jonathan
> ---
> v2: Don't touch val2 when returning IIO_VAL_INT
>     Only touch val when returning a value
> 
>  drivers/iio/gyro/bmg160_core.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/iio/gyro/bmg160_core.c b/drivers/iio/gyro/bmg160_core.c
> index 63ca316..92c07ab 100644
> --- a/drivers/iio/gyro/bmg160_core.c
> +++ b/drivers/iio/gyro/bmg160_core.c
> @@ -582,11 +582,10 @@ static int bmg160_read_raw(struct iio_dev *indio_dev,
>  	case IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY:
>  		return bmg160_get_filter(data, val);
>  	case IIO_CHAN_INFO_SCALE:
> -		*val = 0;
>  		switch (chan->type) {
>  		case IIO_TEMP:
> -			*val2 = 500000;
> -			return IIO_VAL_INT_PLUS_MICRO;
> +			*val = 500;
> +			return IIO_VAL_INT;
>  		case IIO_ANGL_VEL:
>  		{
>  			int i;
> @@ -594,6 +593,7 @@ static int bmg160_read_raw(struct iio_dev *indio_dev,
>  			for (i = 0; i < ARRAY_SIZE(bmg160_scale_table); ++i) {
>  				if (bmg160_scale_table[i].dps_range ==
>  							data->dps_range) {
> +					*val = 0;
>  					*val2 = bmg160_scale_table[i].scale;
>  					return IIO_VAL_INT_PLUS_MICRO;
>  				}
diff mbox series

Patch

diff --git a/drivers/iio/gyro/bmg160_core.c b/drivers/iio/gyro/bmg160_core.c
index 63ca316..92c07ab 100644
--- a/drivers/iio/gyro/bmg160_core.c
+++ b/drivers/iio/gyro/bmg160_core.c
@@ -582,11 +582,10 @@  static int bmg160_read_raw(struct iio_dev *indio_dev,
 	case IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY:
 		return bmg160_get_filter(data, val);
 	case IIO_CHAN_INFO_SCALE:
-		*val = 0;
 		switch (chan->type) {
 		case IIO_TEMP:
-			*val2 = 500000;
-			return IIO_VAL_INT_PLUS_MICRO;
+			*val = 500;
+			return IIO_VAL_INT;
 		case IIO_ANGL_VEL:
 		{
 			int i;
@@ -594,6 +593,7 @@  static int bmg160_read_raw(struct iio_dev *indio_dev,
 			for (i = 0; i < ARRAY_SIZE(bmg160_scale_table); ++i) {
 				if (bmg160_scale_table[i].dps_range ==
 							data->dps_range) {
+					*val = 0;
 					*val2 = bmg160_scale_table[i].scale;
 					return IIO_VAL_INT_PLUS_MICRO;
 				}