2 files changed, 32 insertions, 0 deletions

diff --git a/drivers/phy/phy-core.c b/drivers/phy/phy-core.c
index b72e9a3b6429..8eca906b6e70 100644
--- a/drivers/phy/phy-core.c
+++ b/drivers/phy/phy-core.c
@@ -342,6 +342,21 @@ int phy_power_off(struct phy *phy)
 }
 EXPORT_SYMBOL_GPL(phy_power_off);
 
+int phy_set_mode(struct phy *phy, enum phy_mode mode)
+{
+	int ret;
+
+	if (!phy || !phy->ops->set_mode)
+		return 0;
+
+	mutex_lock(&phy->mutex);
+	ret = phy->ops->set_mode(phy, mode);
+	mutex_unlock(&phy->mutex);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(phy_set_mode);
+
 /**
  * _of_phy_get() - lookup and obtain a reference to a phy by phandle
  * @np: device_node for which to get the phy
diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h
index a810f2a18842..f08b67238b58 100644
--- a/include/linux/phy/phy.h
+++ b/include/linux/phy/phy.h
@@ -22,12 +22,20 @@
 
 struct phy;
 
+enum phy_mode {
+	PHY_MODE_INVALID,
+	PHY_MODE_USB_HOST,
+	PHY_MODE_USB_DEVICE,
+	PHY_MODE_USB_OTG,
+};
+
 /**
  * struct phy_ops - set of function pointers for performing phy operations
  * @init: operation to be performed for initializing phy
  * @exit: operation to be performed while exiting
  * @power_on: powering on the phy
  * @power_off: powering off the phy
+ * @set_mode: set the mode of the phy
  * @owner: the module owner containing the ops
  */
 struct phy_ops {
@@ -35,6 +43,7 @@ struct phy_ops {
 	int	(*exit)(struct phy *phy);
 	int	(*power_on)(struct phy *phy);
 	int	(*power_off)(struct phy *phy);
+	int	(*set_mode)(struct phy *phy, enum phy_mode mode);
 	struct module *owner;
 };
 
@@ -126,6 +135,7 @@ int phy_init(struct phy *phy);
 int phy_exit(struct phy *phy);
 int phy_power_on(struct phy *phy);
 int phy_power_off(struct phy *phy);
+int phy_set_mode(struct phy *phy, enum phy_mode mode);
 static inline int phy_get_bus_width(struct phy *phy)
 {
 	return phy->attrs.bus_width;
@@ -233,6 +243,13 @@ static inline int phy_power_off(struct phy *phy)
 	return -ENOSYS;
 }
 
+static inline int phy_set_mode(struct phy *phy, enum phy_mode mode)
+{
+	if (!phy)
+		return 0;
+	return -ENOSYS;
+}
+
 static inline int phy_get_bus_width(struct phy *phy)
 {
 	return -ENOSYS;