31 u32 hw_read_otgsc(struct ci_hdrc *ci, u32 mask)  in hw_read_otgsc()  argument
33 	return hw_read(ci, OP_OTGSC, mask);  in hw_read_otgsc()
41 void hw_write_otgsc(struct ci_hdrc *ci, u32 mask, u32 data)  in hw_write_otgsc()  argument
43 	hw_write(ci, OP_OTGSC, mask | OTGSC_INT_STATUS_BITS, data);  in hw_write_otgsc()
50 enum ci_role ci_otg_role(struct ci_hdrc *ci)  in ci_otg_role()  argument
52 	enum ci_role role = hw_read_otgsc(ci, OTGSC_ID)  in ci_otg_role()
59 void ci_handle_vbus_change(struct ci_hdrc *ci)  in ci_handle_vbus_change()  argument
61 	if (!ci->is_otg)  in ci_handle_vbus_change()
64 	if (hw_read_otgsc(ci, OTGSC_BSV))  in ci_handle_vbus_change()
65 		usb_gadget_vbus_connect(&ci->gadget);  in ci_handle_vbus_change()
67 		usb_gadget_vbus_disconnect(&ci->gadget);  in ci_handle_vbus_change()
71 static void ci_handle_id_switch(struct ci_hdrc *ci)  in ci_handle_id_switch()  argument
73 	enum ci_role role = ci_otg_role(ci);  in ci_handle_id_switch()
75 	if (role != ci->role) {  in ci_handle_id_switch()
76 		dev_dbg(ci->dev, "switching from %s to %s\n",  in ci_handle_id_switch()
77 			ci_role(ci)->name, ci->roles[role]->name);  in ci_handle_id_switch()
79 		ci_role_stop(ci);  in ci_handle_id_switch()
81 		hw_wait_reg(ci, OP_OTGSC, OTGSC_BSV, 0,  in ci_handle_id_switch()
83 		ci_role_start(ci, role);  in ci_handle_id_switch()
92 	struct ci_hdrc *ci = container_of(work, struct ci_hdrc, work);  in ci_otg_work()  local
94 	if (ci_otg_is_fsm_mode(ci) && !ci_otg_fsm_work(ci)) {  in ci_otg_work()
95 		enable_irq(ci->irq);  in ci_otg_work()
99 	if (ci->id_event) {  in ci_otg_work()
100 		ci->id_event = false;  in ci_otg_work()
101 		ci_handle_id_switch(ci);  in ci_otg_work()
102 	} else if (ci->b_sess_valid_event) {  in ci_otg_work()
103 		ci->b_sess_valid_event = false;  in ci_otg_work()
104 		ci_handle_vbus_change(ci);  in ci_otg_work()
106 		dev_err(ci->dev, "unexpected event occurs at %s\n", __func__);  in ci_otg_work()
108 	enable_irq(ci->irq);  in ci_otg_work()
116 int ci_hdrc_otg_init(struct ci_hdrc *ci)  in ci_hdrc_otg_init()  argument
118 	INIT_WORK(&ci->work, ci_otg_work);  in ci_hdrc_otg_init()
119 	ci->wq = create_freezable_workqueue("ci_otg");  in ci_hdrc_otg_init()
120 	if (!ci->wq) {  in ci_hdrc_otg_init()
121 		dev_err(ci->dev, "can't create workqueue\n");  in ci_hdrc_otg_init()
125 	if (ci_otg_is_fsm_mode(ci))  in ci_hdrc_otg_init()
126 		return ci_hdrc_otg_fsm_init(ci);  in ci_hdrc_otg_init()
135 void ci_hdrc_otg_destroy(struct ci_hdrc *ci)  in ci_hdrc_otg_destroy()  argument
137 	if (ci->wq) {  in ci_hdrc_otg_destroy()
138 		flush_workqueue(ci->wq);  in ci_hdrc_otg_destroy()
139 		destroy_workqueue(ci->wq);  in ci_hdrc_otg_destroy()
142 	hw_write_otgsc(ci, OTGSC_INT_EN_BITS | OTGSC_INT_STATUS_BITS,  in ci_hdrc_otg_destroy()
144 	if (ci_otg_is_fsm_mode(ci))  in ci_hdrc_otg_destroy()
145 		ci_hdrc_otg_fsm_remove(ci);  in ci_hdrc_otg_destroy()