diff options
| author | Mike Looijmans | 2019-03-06 08:31:47 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2019-04-27 09:36:34 +0200 |
| commit | a3117576a73f6b2df88d96fb6ae0402bba0c24b3 (patch) | |
| tree | a7e061cab20992fa45c94f368b4287279556b3e4 /drivers/iio/chemical | |
| parent | iio/gyro/bmg160: Use millidegrees for temperature scale (diff) | |
| download | kernel-qcow2-linux-a3117576a73f6b2df88d96fb6ae0402bba0c24b3.tar.gz kernel-qcow2-linux-a3117576a73f6b2df88d96fb6ae0402bba0c24b3.tar.xz kernel-qcow2-linux-a3117576a73f6b2df88d96fb6ae0402bba0c24b3.zip | |
iio:chemical:bme680: Fix, report temperature in millidegrees
commit 9436f45dd53595e21566a8c6627411077dfdb776 upstream.
The standard unit for temperature is millidegrees Celcius. Adapt the
driver to report in millidegrees instead of degrees.
Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl>
Fixes: 1b3bd8592780 ("iio: chemical: Add support for Bosch BME680 sensor");
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/iio/chemical')
| -rw-r--r-- | drivers/iio/chemical/bme680_core.c | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/drivers/iio/chemical/bme680_core.c b/drivers/iio/chemical/bme680_core.c index 7d9bb62baa3f..ca665e872be9 100644 --- a/drivers/iio/chemical/bme680_core.c +++ b/drivers/iio/chemical/bme680_core.c @@ -591,8 +591,7 @@ static int bme680_gas_config(struct bme680_data *data) return ret; } -static int bme680_read_temp(struct bme680_data *data, - int *val, int *val2) +static int bme680_read_temp(struct bme680_data *data, int *val) { struct device *dev = regmap_get_device(data->regmap); int ret; @@ -625,10 +624,9 @@ static int bme680_read_temp(struct bme680_data *data, * compensate_press/compensate_humid to get compensated * pressure/humidity readings. */ - if (val && val2) { - *val = comp_temp; - *val2 = 100; - return IIO_VAL_FRACTIONAL; + if (val) { + *val = comp_temp * 10; /* Centidegrees to millidegrees */ + return IIO_VAL_INT; } return ret; @@ -643,7 +641,7 @@ static int bme680_read_press(struct bme680_data *data, s32 adc_press; /* Read and compensate temperature to get a reading of t_fine */ - ret = bme680_read_temp(data, NULL, NULL); + ret = bme680_read_temp(data, NULL); if (ret < 0) return ret; @@ -676,7 +674,7 @@ static int bme680_read_humid(struct bme680_data *data, u32 comp_humidity; /* Read and compensate temperature to get a reading of t_fine */ - ret = bme680_read_temp(data, NULL, NULL); + ret = bme680_read_temp(data, NULL); if (ret < 0) return ret; @@ -769,7 +767,7 @@ static int bme680_read_raw(struct iio_dev *indio_dev, case IIO_CHAN_INFO_PROCESSED: switch (chan->type) { case IIO_TEMP: - return bme680_read_temp(data, val, val2); + return bme680_read_temp(data, val); case IIO_PRESSURE: return bme680_read_press(data, val, val2); case IIO_HUMIDITYRELATIVE: |