MLK-14285-1 usb: phy: add usb mode for usb_phy

USB phy driver may need to know the current working mode of
the controller, and does some different settings according to
host mode or device mode.

Signed-off-by: Li Jun <jun.li@nxp.com>
(cherry picked from commit 2286cb30feedd6f4a5cb82a0f0af5aa3a04ab698)

diff --git a/include/linux/usb/phy.h b/include/linux/usb/phy.h
index 9772343..cfc463c 100644 (file)
--- a/include/linux/usb/phy.h
+++ b/include/linux/usb/phy.h
@@ -60,6 +60,13 @@ enum usb_otg_state {
        OTG_STATE_A_VBUS_ERR,
 };
 
+/* The usb role of phy to be working with */
+enum usb_current_mode {
+       USB_MODE_NONE,
+       USB_MODE_HOST,
+       USB_MODE_DEVICE,
+};
+
 struct usb_phy;
 struct usb_otg;
 
@@ -127,6 +134,9 @@ struct usb_phy {
        int     (*notify_resume)(struct usb_phy *x,
                        enum usb_device_speed speed);
 
+       int     (*set_mode)(struct usb_phy *x,
+                       enum usb_current_mode mode);
+
 };
 
 /**
@@ -201,6 +211,15 @@ usb_phy_vbus_off(struct usb_phy *x)
        return x->set_vbus(x, false);
 }
 
+static inline int
+usb_phy_set_mode(struct usb_phy *x, enum usb_current_mode mode)
+{
+       if (!x || !x->set_mode)
+               return 0;
+
+       return x->set_mode(x, mode);
+}
+
 /* for usb host and peripheral controller drivers */
 #if IS_ENABLED(CONFIG_USB_PHY)
 extern struct usb_phy *usb_get_phy(enum usb_phy_type type);