Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64...

[karo-tx-linux.git] / include / linux / extcon.h

diff --git a/include/linux/extcon.h b/include/linux/extcon.h
index 21c59af1150b57588fbe697c9ef9fe38aacff06f..f488145bb2d40460ac58add4624e8648af685e3f 100644 (file)
--- a/include/linux/extcon.h
+++ b/include/linux/extcon.h
@@ -240,6 +240,12 @@ extern int extcon_register_notifier(struct extcon_dev *edev,
                                    struct notifier_block *nb);
 extern int extcon_unregister_notifier(struct extcon_dev *edev,
                                      struct notifier_block *nb);
+
+/*
+ * Following API get the extcon device from devicetree.
+ * This function use phandle of devicetree to get extcon device directly.
+ */
+extern struct extcon_dev *extcon_get_edev_by_phandle(struct device *dev, int index);
 #else /* CONFIG_EXTCON */
 static inline int extcon_dev_register(struct extcon_dev *edev)
 {
@@ -324,5 +330,11 @@ static inline int extcon_unregister_interest(struct extcon_specific_cable_nb
 {
        return 0;
 }
+
+static inline struct extcon_dev *extcon_get_edev_by_phandle(struct device *dev,
+                                                           int index)
+{
+       return ERR_PTR(-ENODEV);
+}
 #endif /* CONFIG_EXTCON */
 #endif /* __LINUX_EXTCON_H__ */