[linux-yocto] [PATCH 03/14] extcon: Add extcon_get_edev_name() API to get the extcon device name
wan.ahmad.zainie.wan.mohamad at intel.com
wan.ahmad.zainie.wan.mohamad at intel.com
Thu Jun 30 18:24:01 PDT 2016
From: Chanwoo Choi <cw00.choi at samsung.com>
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 at samsung.com>
(cherry picked from commit 707d7550875a9bd245ce5f1077d2d2cb44eab218)
Signed-off-by: Wan Ahmad Zainie <wan.ahmad.zainie.wan.mohamad at intel.com>
---
drivers/extcon/extcon.c | 9 +++++++++
include/linux/extcon.h | 4 ++++
2 files changed, 13 insertions(+)
diff --git a/drivers/extcon/extcon.c b/drivers/extcon/extcon.c
index 1a93229..c5e9ebf 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();
diff --git a/include/linux/extcon.h b/include/linux/extcon.h
index 36f49c4..e2cf625 100644
--- a/include/linux/extcon.h
+++ b/include/linux/extcon.h
@@ -259,6 +259,10 @@ extern int extcon_unregister_notifier(struct extcon_dev *edev,
* 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);
+
+/* Following API to get information of extcon device */
+extern const char *extcon_get_edev_name(struct extcon_dev *edev);
+
#else /* CONFIG_EXTCON */
static inline int extcon_dev_register(struct extcon_dev *edev)
{
--
1.9.1
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