For now this just wraps accessing struct counter_device::priv. However
this is about to change and converting drivers to this helper
individually makes fixing device lifetime issues result in easier to
review patches.
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
Acked-by: William Breathitt Gray <vilhelm.gray@xxxxxxxxx>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
---
drivers/counter/counter-core.c | 12 ++++++++++++
include/linux/counter.h | 2 ++
2 files changed, 14 insertions(+)
diff --git a/drivers/counter/counter-core.c b/drivers/counter/counter-core.c
index f053a43c6c04..00c41f28c101 100644
--- a/drivers/counter/counter-core.c
+++ b/drivers/counter/counter-core.c
@@ -45,6 +45,18 @@ static struct bus_type counter_bus_type = {
static dev_t counter_devt;
+/**
+ * counter_priv - access counter device private data
+ * @counter: counter device
+ *
+ * Get the counter device private data
+ */
+void *counter_priv(const struct counter_device *const counter)
+{
+ return counter->priv;
+}
+EXPORT_SYMBOL_GPL(counter_priv);
+
/**
* counter_register - register Counter to the system
* @counter: pointer to Counter to register
diff --git a/include/linux/counter.h b/include/linux/counter.h
index dfbde2808998..627f1757f6bb 100644
--- a/include/linux/counter.h
+++ b/include/linux/counter.h
@@ -329,6 +329,8 @@ struct counter_device {
struct mutex ops_exist_lock;
};
+void *counter_priv(const struct counter_device *const counter);
+
int counter_register(struct counter_device *const counter);
void counter_unregister(struct counter_device *const counter);
int devm_counter_register(struct device *dev,
--
2.34.1
