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authorLorenzo Bianconi <lorenzo.bianconi83@gmail.com>2016-10-26 00:07:38 +0300
committerJonathan Cameron <jic23@kernel.org>2016-10-30 19:46:46 +0300
commitd304286abbbe7ed6228a553a56ba054e900907eb (patch)
tree90abbdb90e151dd4b13e45c52b5aa1007e0ad6b1 /drivers/iio
parent34eee70a7b82b09dbda4cb453e0e21d460dae226 (diff)
downloadlinux-d304286abbbe7ed6228a553a56ba054e900907eb.tar.xz
iio: st_sensors: fix scale configuration for h3lis331dl
fix scale configuration/parsing for h3lis331dl accel driver when sensitivity is higher than 1(m/s^2)/digit Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com> Fixes: 1e52fefc9b0c ("iio: accel: Add support for the h3lis331dl accelerometer") Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/iio')
-rw-r--r--drivers/iio/accel/st_accel_core.c12
-rw-r--r--drivers/iio/common/st_sensors/st_sensors_core.c8
2 files changed, 13 insertions, 7 deletions
diff --git a/drivers/iio/accel/st_accel_core.c b/drivers/iio/accel/st_accel_core.c
index da3fb069ec5c..ce69048c88e9 100644
--- a/drivers/iio/accel/st_accel_core.c
+++ b/drivers/iio/accel/st_accel_core.c
@@ -743,8 +743,8 @@ static int st_accel_read_raw(struct iio_dev *indio_dev,
return IIO_VAL_INT;
case IIO_CHAN_INFO_SCALE:
- *val = 0;
- *val2 = adata->current_fullscale->gain;
+ *val = adata->current_fullscale->gain / 1000000;
+ *val2 = adata->current_fullscale->gain % 1000000;
return IIO_VAL_INT_PLUS_MICRO;
case IIO_CHAN_INFO_SAMP_FREQ:
*val = adata->odr;
@@ -763,9 +763,13 @@ static int st_accel_write_raw(struct iio_dev *indio_dev,
int err;
switch (mask) {
- case IIO_CHAN_INFO_SCALE:
- err = st_sensors_set_fullscale_by_gain(indio_dev, val2);
+ case IIO_CHAN_INFO_SCALE: {
+ int gain;
+
+ gain = val * 1000000 + val2;
+ err = st_sensors_set_fullscale_by_gain(indio_dev, gain);
break;
+ }
case IIO_CHAN_INFO_SAMP_FREQ:
if (val2)
return -EINVAL;
diff --git a/drivers/iio/common/st_sensors/st_sensors_core.c b/drivers/iio/common/st_sensors/st_sensors_core.c
index 285a64a589d7..975a1f19f747 100644
--- a/drivers/iio/common/st_sensors/st_sensors_core.c
+++ b/drivers/iio/common/st_sensors/st_sensors_core.c
@@ -612,7 +612,7 @@ EXPORT_SYMBOL(st_sensors_sysfs_sampling_frequency_avail);
ssize_t st_sensors_sysfs_scale_avail(struct device *dev,
struct device_attribute *attr, char *buf)
{
- int i, len = 0;
+ int i, len = 0, q, r;
struct iio_dev *indio_dev = dev_get_drvdata(dev);
struct st_sensor_data *sdata = iio_priv(indio_dev);
@@ -621,8 +621,10 @@ ssize_t st_sensors_sysfs_scale_avail(struct device *dev,
if (sdata->sensor_settings->fs.fs_avl[i].num == 0)
break;
- len += scnprintf(buf + len, PAGE_SIZE - len, "0.%06u ",
- sdata->sensor_settings->fs.fs_avl[i].gain);
+ q = sdata->sensor_settings->fs.fs_avl[i].gain / 1000000;
+ r = sdata->sensor_settings->fs.fs_avl[i].gain % 1000000;
+
+ len += scnprintf(buf + len, PAGE_SIZE - len, "%u.%06u ", q, r);
}
mutex_unlock(&indio_dev->mlock);
buf[len - 1] = '\n';