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iio:trigger: Introduce iio_tigger_{set,get}_drvdata

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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>
This commit is contained in:
Lars-Peter Clausen
2013-03-25 08:58:00 +00:00
committed by Jonathan Cameron
parent c5cf4606b6
commit 1e9663c62b
17 changed files with 61 additions and 37 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/iio/common/hid-sensors/hid-sensor-trigger.c
View File

@@ -31,7 +31,7 @@
static int hid_sensor_data_rdy_trigger_set_state(struct iio_trigger *trig,
bool state)
{
struct hid_sensor_common *st = trig->private_data;
struct hid_sensor_common *st = iio_trigger_get_drvdata(trig);
int state_val;
state_val = state ? 1 : 0;
@@ -76,7 +76,7 @@ int hid_sensor_setup_trigger(struct iio_dev *indio_dev, const char *name,
}
trig->dev.parent = indio_dev->dev.parent;
trig->private_data = attrb;
iio_trigger_set_drvdata(trig, attrb);
trig->ops = &hid_sensor_trigger_ops;
ret = iio_trigger_register(trig);