--- zzzz-none-000/linux-4.4.271/include/linux/phy/phy.h	2021-06-03 06:22:09.000000000 +0000
+++ hawkeye-5590-750/linux-4.4.271/include/linux/phy/phy.h	2023-04-19 10:22:30.000000000 +0000
@@ -35,6 +35,8 @@
 	int	(*exit)(struct phy *phy);
 	int	(*power_on)(struct phy *phy);
 	int	(*power_off)(struct phy *phy);
+	int	(*read)(struct phy *phy, u32 reg);
+	int	(*write)(struct phy *phy, u32 val, u32 reg);
 	struct module *owner;
 };
 
@@ -108,6 +110,22 @@
 	return dev_get_drvdata(&phy->dev);
 }
 
+static inline int phy_io_read(struct phy *phy, u32 reg)
+{
+	if (phy && phy->ops->read)
+		return phy->ops->read(phy, reg);
+
+	return -EINVAL;
+}
+
+static inline int phy_io_write(struct phy *phy, u32 val, u32 reg)
+{
+	if (phy && phy->ops->write)
+		return phy->ops->write(phy, val, reg);
+
+	return -EINVAL;
+}
+
 #if IS_ENABLED(CONFIG_GENERIC_PHY)
 int phy_pm_runtime_get(struct phy *phy);
 int phy_pm_runtime_get_sync(struct phy *phy);