extcon: Add extcon_get_edev_name() API to get the extcon device name

This patch adds the extcon_get_edev_name() API to get the name of extcon device
because all information inclued in the structure extcon_dev should be accessed
by extcon core API instead of directly accessing the data.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/extcon/extcon.c b/drivers/extcon/extcon.c
index 1a932292d6c8..c5e9ebf0a914 100644
--- a/drivers/extcon/extcon.c
+++ b/drivers/extcon/extcon.c
@@ -1046,6 +1046,15 @@ struct extcon_dev *extcon_get_edev_by_phandle(struct device *dev, int index)
 #endif /* CONFIG_OF */
 EXPORT_SYMBOL_GPL(extcon_get_edev_by_phandle);
 
+/**
+ * extcon_get_edev_name() - Get the name of the extcon device.
+ * @edev:       the extcon device
+ */
+const char *extcon_get_edev_name(struct extcon_dev *edev)
+{
+        return !edev ? NULL : edev->name;
+}
+
 static int __init extcon_class_init(void)
 {
         return create_extcon_class();