drivers: phy: add generic_phy_valid() method
This allow to check if a PHY has been correctly
initialised and avoid to get access to phy struct.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
diff --git a/include/generic-phy.h b/include/generic-phy.h
index 762704c..58cd2b2 100644
--- a/include/generic-phy.h
+++ b/include/generic-phy.h
@@ -220,4 +220,15 @@
int generic_phy_get_by_name(struct udevice *user, const char *phy_name,
struct phy *phy);
+/**
+ * generic_phy_valid() - check if PHY port is valid
+ *
+ * @phy: the PHY port to check
+ * @return TRUE if valid, or FALSE
+ */
+static inline bool generic_phy_valid(struct phy *phy)
+{
+ return phy->dev != NULL;
+}
+
#endif /*__GENERIC_PHY_H */