usb: ehci: Make the PHY handling generic

Pull out the EHCI PHY functions into the ehci-hcd.c to let other
EHCI drivers use them.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>

drivers/usb/host/ehci-generic.c

@@ -26,56 +26,6 @@ struct generic_ehci {
 	int reset_count;
 };
 
-static int ehci_setup_phy(struct udevice *dev, int index)
-{
-	struct generic_ehci *priv = dev_get_priv(dev);
-	int ret;
-
-	ret = generic_phy_get_by_index(dev, index, &priv->phy);
-	if (ret) {
-		if (ret != -ENOENT) {
-			dev_err(dev, "failed to get usb phy\n");
-			return ret;
-		}
-	} else {
-		ret = generic_phy_init(&priv->phy);
-		if (ret) {
-			dev_err(dev, "failed to init usb phy\n");
-			return ret;
-		}
-
-		ret = generic_phy_power_on(&priv->phy);
-		if (ret) {
-			dev_err(dev, "failed to power on usb phy\n");
-			return generic_phy_exit(&priv->phy);
-		}
-	}
-
-	return 0;
-}
-
-static int ehci_shutdown_phy(struct udevice *dev)
-{
-	struct generic_ehci *priv = dev_get_priv(dev);
-	int ret = 0;
-
-	if (generic_phy_valid(&priv->phy)) {
-		ret = generic_phy_power_off(&priv->phy);
-		if (ret) {
-			dev_err(dev, "failed to power off usb phy\n");
-			return ret;
-		}
-
-		ret = generic_phy_exit(&priv->phy);
-		if (ret) {
-			dev_err(dev, "failed to power off usb phy\n");
-			return ret;
-		}
-	}
-
-	return 0;
-}
-
 static int ehci_usb_probe(struct udevice *dev)
 {
 	struct generic_ehci *priv = dev_get_priv(dev);
@@ -145,7 +95,7 @@ static int ehci_usb_probe(struct udevice *dev)
 		}
 	}
 
-	err = ehci_setup_phy(dev, 0);
+	err = ehci_setup_phy(dev, &priv->phy, 0);
 	if (err)
 		goto reset_err;
 
@@ -160,7 +110,7 @@ static int ehci_usb_probe(struct udevice *dev)
 	return 0;
 
 phy_err:
-	ret = ehci_shutdown_phy(dev);
+	ret = ehci_shutdown_phy(dev, &priv->phy);
 	if (ret)
 		dev_err(dev, "failed to shutdown usb phy\n");
 
@@ -185,7 +135,7 @@ static int ehci_usb_remove(struct udevice *dev)
 	if (ret)
 		return ret;
 
-	ret = ehci_shutdown_phy(dev);
+	ret = ehci_shutdown_phy(dev, &priv->phy);
 	if (ret)
 		return ret;
 

drivers/usb/host/ehci-hcd.c

@@ -1675,3 +1675,69 @@ struct dm_usb_ops ehci_usb_ops = {
 };
 
 #endif
+
+#ifdef CONFIG_PHY
+int ehci_setup_phy(struct udevice *dev, struct phy *phy, int index)
+{
+	int ret;
+
+	if (!phy)
+		return 0;
+
+	ret = generic_phy_get_by_index(dev, index, phy);
+	if (ret) {
+		if (ret != -ENOENT) {
+			dev_err(dev, "failed to get usb phy\n");
+			return ret;
+		}
+	} else {
+		ret = generic_phy_init(phy);
+		if (ret) {
+			dev_err(dev, "failed to init usb phy\n");
+			return ret;
+		}
+
+		ret = generic_phy_power_on(phy);
+		if (ret) {
+			dev_err(dev, "failed to power on usb phy\n");
+			return generic_phy_exit(phy);
+		}
+	}
+
+	return 0;
+}
+
+int ehci_shutdown_phy(struct udevice *dev, struct phy *phy)
+{
+	int ret = 0;
+
+	if (!phy)
+		return 0;
+
+	if (generic_phy_valid(phy)) {
+		ret = generic_phy_power_off(phy);
+		if (ret) {
+			dev_err(dev, "failed to power off usb phy\n");
+			return ret;
+		}
+
+		ret = generic_phy_exit(phy);
+		if (ret) {
+			dev_err(dev, "failed to power off usb phy\n");
+			return ret;
+		}
+	}
+
+	return 0;
+}
+#else
+int ehci_setup_phy(struct udevice *dev, struct phy *phy, int index)
+{
+	return 0;
+}
+
+int ehci_shutdown_phy(struct udevice *dev, struct phy *phy)
+{
+	return 0;
+}
+#endif

drivers/usb/host/ehci.h

@@ -9,6 +9,7 @@
 #define USB_EHCI_H
 
 #include <usb.h>
+#include <generic-phy.h>
 
 /* Section 2.2.3 - N_PORTS */
 #define MAX_HC_PORTS		15
@@ -288,4 +289,8 @@ int ehci_register(struct udevice *dev, struct ehci_hccr *hccr,
 int ehci_deregister(struct udevice *dev);
 extern struct dm_usb_ops ehci_usb_ops;
 
+/* EHCI PHY functions */
+int ehci_setup_phy(struct udevice *dev, struct phy *phy, int index);
+int ehci_shutdown_phy(struct udevice *dev, struct phy *phy);
+
 #endif /* USB_EHCI_H */