29 u32 hw_read_otgsc(struct ci_hdrc *ci, u32 mask)  in hw_read_otgsc()  argument
32 	u32 val = hw_read(ci, OP_OTGSC, mask);  in hw_read_otgsc()
38 	cable = &ci->platdata->vbus_extcon;  in hw_read_otgsc()
39 	if (!IS_ERR(cable->edev) || ci->role_switch) {  in hw_read_otgsc()
56 	cable = &ci->platdata->id_extcon;  in hw_read_otgsc()
57 	if (!IS_ERR(cable->edev) || ci->role_switch) {  in hw_read_otgsc()
83 void hw_write_otgsc(struct ci_hdrc *ci, u32 mask, u32 data)  in hw_write_otgsc()  argument
87 	cable = &ci->platdata->vbus_extcon;  in hw_write_otgsc()
88 	if (!IS_ERR(cable->edev) || ci->role_switch) {  in hw_write_otgsc()
101 	cable = &ci->platdata->id_extcon;  in hw_write_otgsc()
102 	if (!IS_ERR(cable->edev) || ci->role_switch) {  in hw_write_otgsc()
115 	hw_write(ci, OP_OTGSC, mask | OTGSC_INT_STATUS_BITS, data);  in hw_write_otgsc()
122 enum ci_role ci_otg_role(struct ci_hdrc *ci)  in ci_otg_role()  argument
124 	enum ci_role role = hw_read_otgsc(ci, OTGSC_ID)  in ci_otg_role()
131 void ci_handle_vbus_change(struct ci_hdrc *ci)  in ci_handle_vbus_change()  argument
133 	if (!ci->is_otg) {  in ci_handle_vbus_change()
134 		if (ci->platdata->flags & CI_HDRC_FORCE_VBUS_ACTIVE_ALWAYS)  in ci_handle_vbus_change()
135 			usb_gadget_vbus_connect(&ci->gadget);  in ci_handle_vbus_change()
139 	if (hw_read_otgsc(ci, OTGSC_BSV) && !ci->vbus_active)  in ci_handle_vbus_change()
140 		usb_gadget_vbus_connect(&ci->gadget);  in ci_handle_vbus_change()
141 	else if (!hw_read_otgsc(ci, OTGSC_BSV) && ci->vbus_active)  in ci_handle_vbus_change()
142 		usb_gadget_vbus_disconnect(&ci->gadget);  in ci_handle_vbus_change()
154 static int hw_wait_vbus_lower_bsv(struct ci_hdrc *ci)  in hw_wait_vbus_lower_bsv()  argument
159 	while (hw_read_otgsc(ci, mask)) {  in hw_wait_vbus_lower_bsv()
161 			dev_err(ci->dev, "timeout waiting for %08x in OTGSC\n",  in hw_wait_vbus_lower_bsv()
171 void ci_handle_id_switch(struct ci_hdrc *ci)  in ci_handle_id_switch()  argument
175 	mutex_lock(&ci->mutex);  in ci_handle_id_switch()
176 	role = ci_otg_role(ci);  in ci_handle_id_switch()
177 	if (role != ci->role) {  in ci_handle_id_switch()
178 		dev_dbg(ci->dev, "switching from %s to %s\n",  in ci_handle_id_switch()
179 			ci_role(ci)->name, ci->roles[role]->name);  in ci_handle_id_switch()
181 		if (ci->vbus_active && ci->role == CI_ROLE_GADGET)  in ci_handle_id_switch()
186 			usb_gadget_vbus_disconnect(&ci->gadget);  in ci_handle_id_switch()
188 		ci_role_stop(ci);  in ci_handle_id_switch()
191 				IS_ERR(ci->platdata->vbus_extcon.edev))  in ci_handle_id_switch()
199 			hw_wait_vbus_lower_bsv(ci);  in ci_handle_id_switch()
201 		ci_role_start(ci, role);  in ci_handle_id_switch()
204 			ci_handle_vbus_change(ci);  in ci_handle_id_switch()
206 	mutex_unlock(&ci->mutex);  in ci_handle_id_switch()
214 	struct ci_hdrc *ci = container_of(work, struct ci_hdrc, work);  in ci_otg_work()  local
216 	if (ci_otg_is_fsm_mode(ci) && !ci_otg_fsm_work(ci)) {  in ci_otg_work()
217 		enable_irq(ci->irq);  in ci_otg_work()
221 	pm_runtime_get_sync(ci->dev);  in ci_otg_work()
223 	if (ci->id_event) {  in ci_otg_work()
224 		ci->id_event = false;  in ci_otg_work()
225 		ci_handle_id_switch(ci);  in ci_otg_work()
228 	if (ci->b_sess_valid_event) {  in ci_otg_work()
229 		ci->b_sess_valid_event = false;  in ci_otg_work()
230 		ci_handle_vbus_change(ci);  in ci_otg_work()
233 	pm_runtime_put_sync(ci->dev);  in ci_otg_work()
235 	enable_irq(ci->irq);  in ci_otg_work()
243 int ci_hdrc_otg_init(struct ci_hdrc *ci)  in ci_hdrc_otg_init()  argument
245 	INIT_WORK(&ci->work, ci_otg_work);  in ci_hdrc_otg_init()
246 	ci->wq = create_freezable_workqueue("ci_otg");  in ci_hdrc_otg_init()
247 	if (!ci->wq) {  in ci_hdrc_otg_init()
248 		dev_err(ci->dev, "can't create workqueue\n");  in ci_hdrc_otg_init()
252 	if (ci_otg_is_fsm_mode(ci))  in ci_hdrc_otg_init()
253 		return ci_hdrc_otg_fsm_init(ci);  in ci_hdrc_otg_init()
262 void ci_hdrc_otg_destroy(struct ci_hdrc *ci)  in ci_hdrc_otg_destroy()  argument
264 	if (ci->wq)  in ci_hdrc_otg_destroy()
265 		destroy_workqueue(ci->wq);  in ci_hdrc_otg_destroy()
268 	hw_write_otgsc(ci, OTGSC_INT_EN_BITS | OTGSC_INT_STATUS_BITS,  in ci_hdrc_otg_destroy()
270 	if (ci_otg_is_fsm_mode(ci))  in ci_hdrc_otg_destroy()
271 		ci_hdrc_otg_fsm_remove(ci);  in ci_hdrc_otg_destroy()