3  * drd.c - DesignWare USB2 DRD Controller Dual-role support
13 #include <linux/usb/role.h>
72 static int dwc2_drd_role_sw_set(struct usb_role_switch *sw, enum usb_role role)  in dwc2_drd_role_sw_set()  argument
79 	if ((role == USB_ROLE_DEVICE && hsotg->dr_mode == USB_DR_MODE_HOST) ||  in dwc2_drd_role_sw_set()
80 	    (role == USB_ROLE_HOST && hsotg->dr_mode == USB_DR_MODE_PERIPHERAL))  in dwc2_drd_role_sw_set()
86 	if (role == USB_ROLE_NONE && hsotg->test_mode) {  in dwc2_drd_role_sw_set()
95 	 * If role-switch set is called before the udc_start, we need to enable  in dwc2_drd_role_sw_set()
108 	if (role == USB_ROLE_HOST) {  in dwc2_drd_role_sw_set()
110 	} else if (role == USB_ROLE_DEVICE) {  in dwc2_drd_role_sw_set()
130 		dwc2_force_mode(hsotg, role == USB_ROLE_HOST);  in dwc2_drd_role_sw_set()
136 		role == USB_ROLE_NONE ? "No" :  in dwc2_drd_role_sw_set()
137 		role == USB_ROLE_HOST ? "A" : "B");  in dwc2_drd_role_sw_set()
148 	if (!device_property_read_bool(hsotg->dev, "usb-role-switch"))  in dwc2_drd_init()
160 			"failed to register role switch: %d\n", ret);  in dwc2_drd_init()