staging:iio: add generic data ready poll function.

This case is extremely common, so let us only have the one
copy.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/staging/iio/industrialio-trigger.c b/drivers/staging/iio/industrialio-trigger.c
index 5496ee2..d045b6c 100644 (file)
--- a/drivers/staging/iio/industrialio-trigger.c
+++ b/drivers/staging/iio/industrialio-trigger.c
@@ -189,6 +189,13 @@ void iio_trigger_poll(struct iio_trigger *trig, s64 time)
 }
 EXPORT_SYMBOL(iio_trigger_poll);
 
+irqreturn_t iio_trigger_generic_data_rdy_poll(int irq, void *private)
+{
+       iio_trigger_poll(private, iio_get_time_ns());
+       return IRQ_HANDLED;
+}
+EXPORT_SYMBOL(iio_trigger_generic_data_rdy_poll);
+
 void iio_trigger_notify_done(struct iio_trigger *trig)
 {
        trig->use_count--;

diff --git a/drivers/staging/iio/trigger.h b/drivers/staging/iio/trigger.h
index 0c44c5e..8e25c00 100644 (file)
--- a/drivers/staging/iio/trigger.h
+++ b/drivers/staging/iio/trigger.h
@@ -127,6 +127,8 @@ int iio_trigger_dettach_poll_func(struct iio_trigger *trig,
 void iio_trigger_poll(struct iio_trigger *trig, s64 time);
 void iio_trigger_notify_done(struct iio_trigger *trig);
 
+irqreturn_t iio_trigger_generic_data_rdy_poll(int irq, void *private);
+
 static inline int iio_trigger_get_irq(struct iio_trigger *trig)
 {
        int ret;