1 files changed, 35 insertions, 1 deletions

diff --git a/drivers/usb/phy/phy-fsm-usb.h b/drivers/usb/phy/phy-fsm-usb.h
index 2f185ed0f54f..6ce3b3cfd7b5 100644
--- a/drivers/usb/phy/phy-fsm-usb.h
+++ b/drivers/usb/phy/phy-fsm-usb.h
@@ -54,6 +54,9 @@ enum otg_fsm_timer {
 /* OTG state machine according to the OTG spec */
 struct otg_fsm {
         /* Input */
+        int adp_change;
+        int power_up;
+        int test_device;
         int a_bus_drop;
         int a_bus_req;
         int a_bus_resume;
@@ -93,9 +96,12 @@ struct otg_fsm {
         int b_bus_req_inf;
 
         /* Output */
+        int data_pulse;
         int drv_vbus;
         int loc_conn;
         int loc_sof;
+        int adp_prb;
+        int adp_sns;
 
         struct otg_fsm_ops *ops;
         struct usb_otg *otg;
@@ -111,6 +117,8 @@ struct otg_fsm_ops {
         void    (*loc_conn)(struct otg_fsm *fsm, int on);
         void    (*loc_sof)(struct otg_fsm *fsm, int on);
         void    (*start_pulse)(struct otg_fsm *fsm);
+        void    (*start_adp_prb)(struct otg_fsm *fsm);
+        void    (*start_adp_sns)(struct otg_fsm *fsm);
         void    (*add_timer)(struct otg_fsm *fsm, enum otg_fsm_timer timer);
         void    (*del_timer)(struct otg_fsm *fsm, enum otg_fsm_timer timer);
         int     (*start_host)(struct otg_fsm *fsm, int on);
@@ -163,7 +171,33 @@ static inline int otg_start_pulse(struct otg_fsm *fsm)
 {
         if (!fsm->ops->start_pulse)
                 return -EOPNOTSUPP;
-        fsm->ops->start_pulse(fsm);
+        if (!fsm->data_pulse) {
+                fsm->data_pulse = 1;
+                fsm->ops->start_pulse(fsm);
+        }
+        return 0;
+}
+
+static inline int otg_start_adp_prb(struct otg_fsm *fsm)
+{
+        if (!fsm->ops->start_adp_prb)
+                return -EOPNOTSUPP;
+        if (!fsm->adp_prb) {
+                fsm->adp_sns = 0;
+                fsm->adp_prb = 1;
+                fsm->ops->start_adp_prb(fsm);
+        }
+        return 0;
+}
+
+static inline int otg_start_adp_sns(struct otg_fsm *fsm)
+{
+        if (!fsm->ops->start_adp_sns)
+                return -EOPNOTSUPP;
+        if (!fsm->adp_sns) {
+                fsm->adp_sns = 1;
+                fsm->ops->start_adp_sns(fsm);
+        }
         return 0;
 }