struct list_head head;
struct kref kref;
struct device *dev;
+ const char *conn;
struct cec_adapter *cec_adap;
void (*callback)(struct cec_adapter *adap, u16 pa);
static LIST_HEAD(cec_notifiers);
static DEFINE_MUTEX(cec_notifiers_lock);
-struct cec_notifier *cec_notifier_get(struct device *dev)
+struct cec_notifier *cec_notifier_get_conn(struct device *dev, const char *conn)
{
struct cec_notifier *n;
mutex_lock(&cec_notifiers_lock);
list_for_each_entry(n, &cec_notifiers, head) {
- if (n->dev == dev) {
+ if (n->dev == dev &&
+ (!conn || !strcmp(n->conn, conn))) {
kref_get(&n->kref);
mutex_unlock(&cec_notifiers_lock);
return n;
if (!n)
goto unlock;
n->dev = dev;
+ if (conn)
+ n->conn = kstrdup(conn, GFP_KERNEL);
n->phys_addr = CEC_PHYS_ADDR_INVALID;
mutex_init(&n->lock);
kref_init(&n->kref);
mutex_unlock(&cec_notifiers_lock);
return n;
}
-EXPORT_SYMBOL_GPL(cec_notifier_get);
+EXPORT_SYMBOL_GPL(cec_notifier_get_conn);
static void cec_notifier_release(struct kref *kref)
{
container_of(kref, struct cec_notifier, kref);
list_del(&n->head);
+ kfree(n->conn);
kfree(n);
}
#if IS_REACHABLE(CONFIG_CEC_CORE) && IS_ENABLED(CONFIG_CEC_NOTIFIER)
/**
- * cec_notifier_get - find or create a new cec_notifier for the given device.
+ * cec_notifier_get_conn - find or create a new cec_notifier for the given
+ * device and connector tuple.
* @dev: device that sends the events.
+ * @conn: the connector name from which the event occurs
*
* If a notifier for device @dev already exists, then increase the refcount
* and return that notifier.
*
* Return NULL if the memory could not be allocated.
*/
-struct cec_notifier *cec_notifier_get(struct device *dev);
+struct cec_notifier *cec_notifier_get_conn(struct device *dev,
+ const char *conn);
/**
* cec_notifier_put - decrease refcount and delete when the refcount reaches 0.
struct cec_notifier *notifier);
#else
-static inline struct cec_notifier *cec_notifier_get(struct device *dev)
+static inline struct cec_notifier *cec_notifier_get_conn(struct device *dev,
+ const char *conn)
{
/* A non-NULL pointer is expected on success */
return (struct cec_notifier *)0xdeadfeed;
#endif
/**
+ * cec_notifier_get - find or create a new cec_notifier for the given device.
+ * @dev: device that sends the events.
+ *
+ * If a notifier for device @dev already exists, then increase the refcount
+ * and return that notifier.
+ *
+ * If it doesn't exist, then allocate a new notifier struct and return a
+ * pointer to that new struct.
+ *
+ * Return NULL if the memory could not be allocated.
+ */
+static inline struct cec_notifier *cec_notifier_get(struct device *dev)
+{
+ return cec_notifier_get_conn(dev, NULL);
+}
+
+/**
* cec_notifier_phys_addr_invalidate() - set the physical address to INVALID
*
* @n: the CEC notifier