iio:st sensors: remove custom sampling frequence attribute in favour of core support.

This allows in kernel client drivers to access this

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Cc: Denis Ciocca <denis.ciocca@st.com>
Reviewed-by: Hartmut Knaack <knaack.h@gmx.de>

1 files changed, 25 insertions, 2 deletions

diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c
index cd7e01f3a93b..473d914ef470 100644
--- a/drivers/iio/pressure/st_pressure_core.c
+++ b/drivers/iio/pressure/st_pressure_core.c
@@ -307,6 +307,27 @@ static const struct st_sensors st_press_sensors[] = {
         },
 };
 
+static int st_press_write_raw(struct iio_dev *indio_dev,
+                              struct iio_chan_spec const *ch,
+                              int val,
+                              int val2,
+                              long mask)
+{
+        int err;
+
+        switch (mask) {
+        case IIO_CHAN_INFO_SAMP_FREQ:
+                if (val2)
+                        return -EINVAL;
+                mutex_lock(&indio_dev->mlock);
+                err = st_sensors_set_odr(indio_dev, val);
+                mutex_unlock(&indio_dev->mlock);
+                return err;
+        default:
+                return -EINVAL;
+        }
+}
+
 static int st_press_read_raw(struct iio_dev *indio_dev,
                         struct iio_chan_spec const *ch, int *val,
                                                         int *val2, long mask)
@@ -349,6 +370,9 @@ static int st_press_read_raw(struct iio_dev *indio_dev,
                 }
 
                 return IIO_VAL_FRACTIONAL;
+        case IIO_CHAN_INFO_SAMP_FREQ:
+                *val = pdata->odr;
+                return IIO_VAL_INT;
         default:
                 return -EINVAL;
         }
@@ -357,12 +381,10 @@ read_error:
         return err;
 }
 
-static ST_SENSOR_DEV_ATTR_SAMP_FREQ();
 static ST_SENSORS_DEV_ATTR_SAMP_FREQ_AVAIL();
 
 static struct attribute *st_press_attributes[] = {
         &iio_dev_attr_sampling_frequency_available.dev_attr.attr,
-        &iio_dev_attr_sampling_frequency.dev_attr.attr,
         NULL,
 };
 
@@ -374,6 +396,7 @@ static const struct iio_info press_info = {
         .driver_module = THIS_MODULE,
         .attrs = &st_press_attribute_group,
         .read_raw = &st_press_read_raw,
+        .write_raw = &st_press_write_raw,
 };
 
 #ifdef CONFIG_IIO_TRIGGER