phy: core: Add devm_of_phy_get_by_index to phy-core

Some generic drivers, such as ehci, may use multiple phys and for such
drivers referencing phy(s) by name(s) does not make sense. Instead of
inventing new naming schemes and using custom code to iterate through them,
such drivers are better of using nameless phy bindings and using this newly
introduced API to iterate through them.

Signed-off-by: Arun Ramamurthy <arun.ramamurthy@broadcom.com>
Reviewed-by: Ray Jui <rjui@broadcom.com>
Reviewed-by: Scott Branden <sbranden@broadcom.com>
[kishon@ti.com: fix compilation errors]
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h
index a0197fa1b116..8cf05e341cff 100644
--- a/include/linux/phy/phy.h
+++ b/include/linux/phy/phy.h
@@ -133,6 +133,8 @@ struct phy *devm_phy_get(struct device *dev, const char *string);
 struct phy *devm_phy_optional_get(struct device *dev, const char *string);
 struct phy *devm_of_phy_get(struct device *dev, struct device_node *np,
                             const char *con_id);
+struct phy *devm_of_phy_get_by_index(struct device *dev, struct device_node *np,
+                                     int index);
 void phy_put(struct phy *phy);
 void devm_phy_put(struct device *dev, struct phy *phy);
 struct phy *of_phy_get(struct device_node *np, const char *con_id);
@@ -261,6 +263,13 @@ static inline struct phy *devm_of_phy_get(struct device *dev,
         return ERR_PTR(-ENOSYS);
 }
 
+static inline struct phy *devm_of_phy_get_by_index(struct device *dev,
+                                                   struct device_node *np,
+                                                   int index)
+{
+        return ERR_PTR(-ENOSYS);
+}
+
 static inline void phy_put(struct phy *phy)
 {
 }