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author | Lars-Peter Clausen <lars@metafoo.de> | 2013-03-25 08:58:00 (GMT) |
---|---|---|
committer | Jonathan Cameron <jic23@kernel.org> | 2013-03-25 21:06:09 (GMT) |
commit | 1e9663c62b32f695af37fec4afc473b59f5ca9b4 (patch) | |
tree | 8f1c1c9fbaa89c3f75ad14a04dd8ee20ecb6dba0 /include/linux/iio/trigger.h | |
parent | c5cf4606b6659e711258b6e567415ab83a3b646c (diff) | |
download | linux-fsl-qoriq-1e9663c62b32f695af37fec4afc473b59f5ca9b4.tar.xz |
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>
Diffstat (limited to 'include/linux/iio/trigger.h')
-rw-r--r-- | include/linux/iio/trigger.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/include/linux/iio/trigger.h b/include/linux/iio/trigger.h index c66e0a9..b81948a 100644 --- a/include/linux/iio/trigger.h +++ b/include/linux/iio/trigger.h @@ -92,6 +92,30 @@ static inline void iio_trigger_get(struct iio_trigger *trig) } /** + * iio_device_set_drvdata() - Set trigger driver data + * @trig: IIO trigger structure + * @data: Driver specific data + * + * Allows to attach an arbitrary pointer to an IIO trigger, which can later be + * retrieved by iio_trigger_get_drvdata(). + */ +static inline void iio_trigger_set_drvdata(struct iio_trigger *trig, void *data) +{ + trig->private_data = data; +} + +/** + * iio_trigger_get_drvdata() - Get trigger driver data + * @trig: IIO trigger structure + * + * Returns the data previously set with iio_trigger_set_drvdata() + */ +static inline void *iio_trigger_get_drvdata(struct iio_trigger *trig) +{ + return trig->private_data; +} + +/** * iio_trigger_register() - register a trigger with the IIO core * @trig_info: trigger to be registered **/ |