31 u32 hw_read_otgsc(struct ci_hdrc *ci, u32 mask)  in hw_read_otgsc()  argument
34 	u32 val = hw_read(ci, OP_OTGSC, mask);  in hw_read_otgsc()
40 	cable = &ci->platdata->vbus_extcon;  in hw_read_otgsc()
58 	cable = &ci->platdata->id_extcon;  in hw_read_otgsc()
84 void hw_write_otgsc(struct ci_hdrc *ci, u32 mask, u32 data)  in hw_write_otgsc()  argument
88 	cable = &ci->platdata->vbus_extcon;  in hw_write_otgsc()
102 	cable = &ci->platdata->id_extcon;  in hw_write_otgsc()
116 	hw_write(ci, OP_OTGSC, mask | OTGSC_INT_STATUS_BITS, data);  in hw_write_otgsc()
123 enum ci_role ci_otg_role(struct ci_hdrc *ci)  in ci_otg_role()  argument
125 	enum ci_role role = hw_read_otgsc(ci, OTGSC_ID)  in ci_otg_role()
132 void ci_handle_vbus_change(struct ci_hdrc *ci)  in ci_handle_vbus_change()  argument
134 	if (!ci->is_otg)  in ci_handle_vbus_change()
137 	if (hw_read_otgsc(ci, OTGSC_BSV) && !ci->vbus_active)  in ci_handle_vbus_change()
138 		usb_gadget_vbus_connect(&ci->gadget);  in ci_handle_vbus_change()
139 	else if (!hw_read_otgsc(ci, OTGSC_BSV) && ci->vbus_active)  in ci_handle_vbus_change()
140 		usb_gadget_vbus_disconnect(&ci->gadget);  in ci_handle_vbus_change()
151 static int hw_wait_vbus_lower_bsv(struct ci_hdrc *ci)  in hw_wait_vbus_lower_bsv()  argument
156 	while (hw_read_otgsc(ci, mask)) {  in hw_wait_vbus_lower_bsv()
158 			dev_err(ci->dev, "timeout waiting for %08x in OTGSC\n",  in hw_wait_vbus_lower_bsv()
168 static void ci_handle_id_switch(struct ci_hdrc *ci)  in ci_handle_id_switch()  argument
170 	enum ci_role role = ci_otg_role(ci);  in ci_handle_id_switch()
172 	if (role != ci->role) {  in ci_handle_id_switch()
173 		dev_dbg(ci->dev, "switching from %s to %s\n",  in ci_handle_id_switch()
174 			ci_role(ci)->name, ci->roles[role]->name);  in ci_handle_id_switch()
176 		ci_role_stop(ci);  in ci_handle_id_switch()
179 				IS_ERR(ci->platdata->vbus_extcon.edev))  in ci_handle_id_switch()
187 			hw_wait_vbus_lower_bsv(ci);  in ci_handle_id_switch()
189 		ci_role_start(ci, role);  in ci_handle_id_switch()
192 			ci_handle_vbus_change(ci);  in ci_handle_id_switch()
201 	struct ci_hdrc *ci = container_of(work, struct ci_hdrc, work);  in ci_otg_work()  local
203 	if (ci_otg_is_fsm_mode(ci) && !ci_otg_fsm_work(ci)) {  in ci_otg_work()
204 		enable_irq(ci->irq);  in ci_otg_work()
208 	pm_runtime_get_sync(ci->dev);  in ci_otg_work()
209 	if (ci->id_event) {  in ci_otg_work()
210 		ci->id_event = false;  in ci_otg_work()
211 		ci_handle_id_switch(ci);  in ci_otg_work()
212 	} else if (ci->b_sess_valid_event) {  in ci_otg_work()
213 		ci->b_sess_valid_event = false;  in ci_otg_work()
214 		ci_handle_vbus_change(ci);  in ci_otg_work()
216 		dev_err(ci->dev, "unexpected event occurs at %s\n", __func__);  in ci_otg_work()
217 	pm_runtime_put_sync(ci->dev);  in ci_otg_work()
219 	enable_irq(ci->irq);  in ci_otg_work()
227 int ci_hdrc_otg_init(struct ci_hdrc *ci)  in ci_hdrc_otg_init()  argument
229 	INIT_WORK(&ci->work, ci_otg_work);  in ci_hdrc_otg_init()
230 	ci->wq = create_freezable_workqueue("ci_otg");  in ci_hdrc_otg_init()
231 	if (!ci->wq) {  in ci_hdrc_otg_init()
232 		dev_err(ci->dev, "can't create workqueue\n");  in ci_hdrc_otg_init()
236 	if (ci_otg_is_fsm_mode(ci))  in ci_hdrc_otg_init()
237 		return ci_hdrc_otg_fsm_init(ci);  in ci_hdrc_otg_init()
246 void ci_hdrc_otg_destroy(struct ci_hdrc *ci)  in ci_hdrc_otg_destroy()  argument
248 	if (ci->wq) {  in ci_hdrc_otg_destroy()
249 		flush_workqueue(ci->wq);  in ci_hdrc_otg_destroy()
250 		destroy_workqueue(ci->wq);  in ci_hdrc_otg_destroy()
253 	hw_write_otgsc(ci, OTGSC_INT_EN_BITS | OTGSC_INT_STATUS_BITS,  in ci_hdrc_otg_destroy()
255 	if (ci_otg_is_fsm_mode(ci))  in ci_hdrc_otg_destroy()
256 		ci_hdrc_otg_fsm_remove(ci);  in ci_hdrc_otg_destroy()