[PATCH v3 06/22] usb: common: add API to get usb otg features from device tree

@@ -154,6 +154,70 @@ bool of_usb_host_tpl_support(struct device_node *np)
 	return false;
 }
 EXPORT_SYMBOL_GPL(of_usb_host_tpl_support);
+
+/**
+ * of_usb_otg_srp_disabled -  to get if otg srp is disabled for the device
+ * @np: Pointer to the given device_node
+ *
+ * The function gets if SRP is disabled on the otg port
+ */
+bool of_usb_otg_srp_disabled(struct device_node *np)
+{
+	if (of_find_property(np, "srp-disable", NULL))
+		return true;
+
+	return false;
+}
+EXPORT_SYMBOL_GPL(of_usb_otg_srp_disabled);
+
+/**
+ * of_usb_otg_hnp_disabled -  to get if otg hnp is disabled for the device
+ * @np: Pointer to the given device_node
+ *
+ * The function gets if HNP is disabled on the otg port
+ */
+bool of_usb_otg_hnp_disabled(struct device_node *np)
+{
+	if (of_find_property(np, "hnp-disable", NULL))
+		return true;
+
+	return false;
+}
+EXPORT_SYMBOL_GPL(of_usb_otg_hnp_disabled);
+
+/**
+ * of_usb_otg_adp_disabled -  to get if otg adp is disabled for the device
+ * @np: Pointer to the given device_node
+ *
+ * The function gets if ADP is disabled on the otg port
+ */
+bool of_usb_otg_adp_disabled(struct device_node *np)
+{
+	if (of_find_property(np, "adp-disable", NULL))
+		return true;
+
+	return false;
+}
+EXPORT_SYMBOL_GPL(of_usb_otg_adp_disabled);
+
+/**
+ * of_usb_get_otg_rev -  to get the otg release number the device is
+ * compliant with.
+ * @np: Pointer to the given device_node
+ *
+ * The function gets OTG and EH supplement release number in binary-coded
+ * decimal (i.e. 2.0 is 0200H).
+ */
+int of_usb_get_otg_rev(struct device_node *np)
+{
+	u32 otg_rev;
+
+	if (!of_property_read_u32(np, "otg-rev", &otg_rev))
+		return otg_rev;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(of_usb_get_otg_rev);
 #endif
 
 MODULE_LICENSE("GPL");

@@ -15,6 +15,10 @@
 enum usb_dr_mode of_usb_get_dr_mode(struct device_node *np);
 enum usb_device_speed of_usb_get_maximum_speed(struct device_node *np);
 bool of_usb_host_tpl_support(struct device_node *np);
+bool of_usb_otg_srp_disabled(struct device_node *np);
+bool of_usb_otg_hnp_disabled(struct device_node *np);
+bool of_usb_otg_adp_disabled(struct device_node *np);
+int of_usb_get_otg_rev(struct device_node *np);
 #else
 static inline enum usb_dr_mode of_usb_get_dr_mode(struct device_node *np)
 {

@@ -30,6 +34,22 @@ static inline bool of_usb_host_tpl_support(struct device_node *np)
 {
 	return false;
 }
+static inline bool of_usb_otg_srp_disabled(struct device_node *np)
+{
+	return false;
+}
+static inline bool of_usb_otg_hnp_disabled(struct device_node *np)
+{
+	return false;
+}
+static inline bool of_usb_otg_adp_disabled(struct device_node *np)
+{
+	return false;
+}
+static inline int of_usb_get_otg_rev(struct device_node *np)
+{
+	return 0;
+}
 #endif
 
 #if IS_ENABLED(CONFIG_OF) && IS_ENABLED(CONFIG_USB_SUPPORT)