iio:common: added allocate and deallocate trigger functions when trigger is disabled.

This patch resolve a bugfix when driver is compiled without trigger.

Signed-off-by: Denis Ciocca <denis.ciocca@st.com>
Reported-by: Randy Dunlap  <rdunlap@infradead.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

diff --git a/include/linux/iio/common/st_sensors.h b/include/linux/iio/common/st_sensors.h
index c40fdf537f694b1c4879cd272f6c20f53d7c087d..1f86a97ab2e2016407e68fe352bba3b4d018880d 100644 (file)
--- a/include/linux/iio/common/st_sensors.h
+++ b/include/linux/iio/common/st_sensors.h
@@ -235,6 +235,16 @@ void st_sensors_deallocate_trigger(struct iio_dev *indio_dev);
 irqreturn_t st_sensors_trigger_handler(int irq, void *p);
 
 int st_sensors_get_buffer_element(struct iio_dev *indio_dev, u8 *buf);
+#else
+static inline int st_sensors_allocate_trigger(struct iio_dev *indio_dev,
+                               const struct iio_trigger_ops *trigger_ops)
+{
+       return 0;
+}
+static inline void st_sensors_deallocate_trigger(struct iio_dev *indio_dev)
+{
+       return;
+}
 #endif
 
 int st_sensors_init_sensor(struct iio_dev *indio_dev);