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authorLee Jones <lee.jones@linaro.org>2013-09-10 13:49:00 +0100
committerJonathan Cameron <jic23@kernel.org>2013-09-14 21:17:15 +0100
commit362f2f8647cfa53e36bf910b42ad084674ade9dc (patch)
treefdd383ab58e2d9e28d7bf3466e1e641690c54f39
parentaab9ba7eb2633927d0010f00c3bc7960efcd3c23 (diff)
downloadop-kernel-dev-362f2f8647cfa53e36bf910b42ad084674ade9dc.zip
op-kernel-dev-362f2f8647cfa53e36bf910b42ad084674ade9dc.tar.gz
iio: sensors-core: st: Allow full-scale to be an optional feature
Some chips either don't support it or fail to provide adequate documentation, so sometimes it's impossible to enable the feature even if it is supported. Signed-off-by: Lee Jones <lee.jones@linaro.org> Acked-by: Denis Ciocca <denis.ciocca@st.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
-rw-r--r--drivers/iio/common/st_sensors/st_sensors_core.c11
-rw-r--r--drivers/iio/pressure/st_pressure_core.c6
2 files changed, 11 insertions, 6 deletions
diff --git a/drivers/iio/common/st_sensors/st_sensors_core.c b/drivers/iio/common/st_sensors/st_sensors_core.c
index 965ee22..eb261a5 100644
--- a/drivers/iio/common/st_sensors/st_sensors_core.c
+++ b/drivers/iio/common/st_sensors/st_sensors_core.c
@@ -235,10 +235,13 @@ int st_sensors_init_sensor(struct iio_dev *indio_dev,
if (err < 0)
goto init_error;
- err = st_sensors_set_fullscale(indio_dev,
- sdata->current_fullscale->num);
- if (err < 0)
- goto init_error;
+ if (sdata->current_fullscale) {
+ err = st_sensors_set_fullscale(indio_dev,
+ sdata->current_fullscale->num);
+ if (err < 0)
+ goto init_error;
+ } else
+ dev_info(&indio_dev->dev, "Full-scale not possible\n");
err = st_sensors_set_odr(indio_dev, sdata->odr);
if (err < 0)
diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c
index ceebd3c..16cfbc5 100644
--- a/drivers/iio/pressure/st_pressure_core.c
+++ b/drivers/iio/pressure/st_pressure_core.c
@@ -226,8 +226,10 @@ int st_press_common_probe(struct iio_dev *indio_dev,
indio_dev->channels = pdata->sensor->ch;
indio_dev->num_channels = ARRAY_SIZE(st_press_channels);
- pdata->current_fullscale = (struct st_sensor_fullscale_avl *)
- &pdata->sensor->fs.fs_avl[0];
+ if (pdata->sensor->fs.addr != 0)
+ pdata->current_fullscale = (struct st_sensor_fullscale_avl *)
+ &pdata->sensor->fs.fs_avl[0];
+
pdata->odr = pdata->sensor->odr.odr_avl[0].hz;
if (!plat_data)
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