[media] cec: integrate CEC notifier support
Support the CEC notifier framework, simplifying drivers that
depend on this.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
diff --git a/drivers/media/cec/cec-core.c b/drivers/media/cec/cec-core.c
index 37217e2..e5070b3 100644
--- a/drivers/media/cec/cec-core.c
+++ b/drivers/media/cec/cec-core.c
@@ -195,6 +195,24 @@ static void cec_devnode_unregister(struct cec_devnode *devnode)
put_device(&devnode->dev);
}
+#ifdef CONFIG_MEDIA_CEC_NOTIFIER
+static void cec_cec_notify(struct cec_adapter *adap, u16 pa)
+{
+ cec_s_phys_addr(adap, pa, false);
+}
+
+void cec_register_cec_notifier(struct cec_adapter *adap,
+ struct cec_notifier *notifier)
+{
+ if (WARN_ON(!adap->devnode.registered))
+ return;
+
+ adap->notifier = notifier;
+ cec_notifier_register(adap->notifier, adap, cec_cec_notify);
+}
+EXPORT_SYMBOL_GPL(cec_register_cec_notifier);
+#endif
+
struct cec_adapter *cec_allocate_adapter(const struct cec_adap_ops *ops,
void *priv, const char *name, u32 caps,
u8 available_las)
@@ -343,6 +361,10 @@ void cec_unregister_adapter(struct cec_adapter *adap)
adap->rc = NULL;
#endif
debugfs_remove_recursive(adap->cec_dir);
+#ifdef CONFIG_MEDIA_CEC_NOTIFIER
+ if (adap->notifier)
+ cec_notifier_unregister(adap->notifier);
+#endif
cec_devnode_unregister(&adap->devnode);
}
EXPORT_SYMBOL_GPL(cec_unregister_adapter);
