iio:trigger: Introduce iio_tigger_{set,get}_drvdata
Introduce iio_tigger_{set,get}_drvdata which allows to attach driver specific
data to a trigger. The functions wrap access to the triggers private_data field
and all current users are updated to use iio_tigger_{set,get}_drvdata instead of
directly accessing the private_data field. This is the first step towards
removing the private_data field from the iio_trigger struct.
The following coccinelle script has been used to update the drivers:
<smpl>
@@
struct iio_trigger *trigger;
expression priv;
@@
-trigger->private_data = priv
+iio_trigger_set_drv_data(trigger, priv)
@@
struct iio_trigger *trigger;
@@
-trigger->private_data
+iio_trigger_get_drv_data(trigger)
</smpl>
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
diff --git a/drivers/iio/gyro/itg3200_buffer.c b/drivers/iio/gyro/itg3200_buffer.c
index f667d2c..6c43af9 100644
--- a/drivers/iio/gyro/itg3200_buffer.c
+++ b/drivers/iio/gyro/itg3200_buffer.c
@@ -81,7 +81,7 @@
static int itg3200_data_rdy_trigger_set_state(struct iio_trigger *trig,
bool state)
{
- struct iio_dev *indio_dev = trig->private_data;
+ struct iio_dev *indio_dev = iio_trigger_get_drvdata(trig);
int ret;
u8 msc;
@@ -129,7 +129,7 @@
st->trig->dev.parent = &st->i2c->dev;
st->trig->ops = &itg3200_trigger_ops;
- st->trig->private_data = indio_dev;
+ iio_trigger_set_drvdata(st->trig, indio_dev);
ret = iio_trigger_register(st->trig);
if (ret)
goto error_free_irq;