Lines Matching +full:otg +full:- +full:id
1 // SPDX-License-Identifier: GPL-2.0+
20 #include <linux/usb/otg.h>
25 #include "phy-mv-usb.h"
27 #define DRIVER_DESC "Marvell USB OTG transceiver driver"
32 static const char driver_name[] = "mv-otg";
51 static int mv_otg_set_vbus(struct usb_otg *otg, bool on) in mv_otg_set_vbus() argument
53 struct mv_otg *mvotg = container_of(otg->usb_phy, struct mv_otg, phy); in mv_otg_set_vbus()
54 if (mvotg->pdata->set_vbus == NULL) in mv_otg_set_vbus()
55 return -ENODEV; in mv_otg_set_vbus()
57 return mvotg->pdata->set_vbus(on); in mv_otg_set_vbus()
60 static int mv_otg_set_host(struct usb_otg *otg, in mv_otg_set_host() argument
63 otg->host = host; in mv_otg_set_host()
68 static int mv_otg_set_peripheral(struct usb_otg *otg, in mv_otg_set_peripheral() argument
71 otg->gadget = gadget; in mv_otg_set_peripheral()
79 dev_dbg(&mvotg->pdev->dev, "transceiver is updated\n"); in mv_otg_run_state_machine()
80 if (!mvotg->qwork) in mv_otg_run_state_machine()
83 queue_delayed_work(mvotg->qwork, &mvotg->work, delay); in mv_otg_run_state_machine()
91 mvotg->otg_ctrl.a_wait_bcon_timeout = 1; in mv_otg_timer_await_bcon()
93 dev_info(&mvotg->pdev->dev, "B Device No Response!\n"); in mv_otg_timer_await_bcon()
95 if (spin_trylock(&mvotg->wq_lock)) { in mv_otg_timer_await_bcon()
97 spin_unlock(&mvotg->wq_lock); in mv_otg_timer_await_bcon()
101 static int mv_otg_cancel_timer(struct mv_otg *mvotg, unsigned int id) in mv_otg_cancel_timer() argument
105 if (id >= OTG_TIMER_NUM) in mv_otg_cancel_timer()
106 return -EINVAL; in mv_otg_cancel_timer()
108 timer = &mvotg->otg_ctrl.timer[id]; in mv_otg_cancel_timer()
116 static int mv_otg_set_timer(struct mv_otg *mvotg, unsigned int id, in mv_otg_set_timer() argument
121 if (id >= OTG_TIMER_NUM) in mv_otg_set_timer()
122 return -EINVAL; in mv_otg_set_timer()
124 timer = &mvotg->otg_ctrl.timer[id]; in mv_otg_set_timer()
126 dev_err(&mvotg->pdev->dev, "Timer%d is already running\n", id); in mv_otg_set_timer()
127 return -EBUSY; in mv_otg_set_timer()
130 timer->expires = jiffies + interval; in mv_otg_set_timer()
142 tmp = readl(&mvotg->op_regs->usbcmd); in mv_otg_reset()
144 writel(tmp, &mvotg->op_regs->usbcmd); in mv_otg_reset()
147 writel(USBCMD_CTRL_RESET, &mvotg->op_regs->usbcmd); in mv_otg_reset()
150 while (readl(&mvotg->op_regs->usbcmd) & USBCMD_CTRL_RESET) { in mv_otg_reset()
152 dev_err(&mvotg->pdev->dev, in mv_otg_reset()
154 return -ETIMEDOUT; in mv_otg_reset()
156 loops--; in mv_otg_reset()
160 writel(0x0, &mvotg->op_regs->usbintr); in mv_otg_reset()
161 tmp = readl(&mvotg->op_regs->usbsts); in mv_otg_reset()
162 writel(tmp, &mvotg->op_regs->usbsts); in mv_otg_reset()
171 mvotg->irq_en = OTGSC_INTR_A_SESSION_VALID in mv_otg_init_irq()
173 mvotg->irq_status = OTGSC_INTSTS_A_SESSION_VALID in mv_otg_init_irq()
176 if (mvotg->pdata->vbus == NULL) { in mv_otg_init_irq()
177 mvotg->irq_en |= OTGSC_INTR_B_SESSION_VALID in mv_otg_init_irq()
179 mvotg->irq_status |= OTGSC_INTSTS_B_SESSION_VALID in mv_otg_init_irq()
183 if (mvotg->pdata->id == NULL) { in mv_otg_init_irq()
184 mvotg->irq_en |= OTGSC_INTR_USB_ID; in mv_otg_init_irq()
185 mvotg->irq_status |= OTGSC_INTSTS_USB_ID; in mv_otg_init_irq()
188 otgsc = readl(&mvotg->op_regs->otgsc); in mv_otg_init_irq()
189 otgsc |= mvotg->irq_en; in mv_otg_init_irq()
190 writel(otgsc, &mvotg->op_regs->otgsc); in mv_otg_init_irq()
196 struct usb_otg *otg = mvotg->phy.otg; in mv_otg_start_host() local
199 if (!otg->host) in mv_otg_start_host()
202 dev_info(&mvotg->pdev->dev, "%s host\n", on ? "start" : "stop"); in mv_otg_start_host()
204 hcd = bus_to_hcd(otg->host); in mv_otg_start_host()
207 usb_add_hcd(hcd, hcd->irq, IRQF_SHARED); in mv_otg_start_host()
208 device_wakeup_enable(hcd->self.controller); in mv_otg_start_host()
217 struct usb_otg *otg = mvotg->phy.otg; in mv_otg_start_periphrals() local
219 if (!otg->gadget) in mv_otg_start_periphrals()
222 dev_info(mvotg->phy.dev, "gadget %s\n", on ? "on" : "off"); in mv_otg_start_periphrals()
225 usb_gadget_vbus_connect(otg->gadget); in mv_otg_start_periphrals()
227 usb_gadget_vbus_disconnect(otg->gadget); in mv_otg_start_periphrals()
232 clk_prepare_enable(mvotg->clk); in otg_clock_enable()
237 clk_disable_unprepare(mvotg->clk); in otg_clock_disable()
244 if (mvotg->active) in mv_otg_enable_internal()
247 dev_dbg(&mvotg->pdev->dev, "otg enabled\n"); in mv_otg_enable_internal()
250 if (mvotg->pdata->phy_init) { in mv_otg_enable_internal()
251 retval = mvotg->pdata->phy_init(mvotg->phy_regs); in mv_otg_enable_internal()
253 dev_err(&mvotg->pdev->dev, in mv_otg_enable_internal()
259 mvotg->active = 1; in mv_otg_enable_internal()
267 if (mvotg->clock_gating) in mv_otg_enable()
275 if (mvotg->active) { in mv_otg_disable_internal()
276 dev_dbg(&mvotg->pdev->dev, "otg disabled\n"); in mv_otg_disable_internal()
277 if (mvotg->pdata->phy_deinit) in mv_otg_disable_internal()
278 mvotg->pdata->phy_deinit(mvotg->phy_regs); in mv_otg_disable_internal()
280 mvotg->active = 0; in mv_otg_disable_internal()
286 if (mvotg->clock_gating) in mv_otg_disable()
292 struct mv_otg_ctrl *otg_ctrl = &mvotg->otg_ctrl; in mv_otg_update_inputs()
295 otgsc = readl(&mvotg->op_regs->otgsc); in mv_otg_update_inputs()
297 if (mvotg->pdata->vbus) { in mv_otg_update_inputs()
298 if (mvotg->pdata->vbus->poll() == VBUS_HIGH) { in mv_otg_update_inputs()
299 otg_ctrl->b_sess_vld = 1; in mv_otg_update_inputs()
300 otg_ctrl->b_sess_end = 0; in mv_otg_update_inputs()
302 otg_ctrl->b_sess_vld = 0; in mv_otg_update_inputs()
303 otg_ctrl->b_sess_end = 1; in mv_otg_update_inputs()
306 otg_ctrl->b_sess_vld = !!(otgsc & OTGSC_STS_B_SESSION_VALID); in mv_otg_update_inputs()
307 otg_ctrl->b_sess_end = !!(otgsc & OTGSC_STS_B_SESSION_END); in mv_otg_update_inputs()
310 if (mvotg->pdata->id) in mv_otg_update_inputs()
311 otg_ctrl->id = !!mvotg->pdata->id->poll(); in mv_otg_update_inputs()
313 otg_ctrl->id = !!(otgsc & OTGSC_STS_USB_ID); in mv_otg_update_inputs()
315 if (mvotg->pdata->otg_force_a_bus_req && !otg_ctrl->id) in mv_otg_update_inputs()
316 otg_ctrl->a_bus_req = 1; in mv_otg_update_inputs()
318 otg_ctrl->a_sess_vld = !!(otgsc & OTGSC_STS_A_SESSION_VALID); in mv_otg_update_inputs()
319 otg_ctrl->a_vbus_vld = !!(otgsc & OTGSC_STS_A_VBUS_VALID); in mv_otg_update_inputs()
321 dev_dbg(&mvotg->pdev->dev, "%s: ", __func__); in mv_otg_update_inputs()
322 dev_dbg(&mvotg->pdev->dev, "id %d\n", otg_ctrl->id); in mv_otg_update_inputs()
323 dev_dbg(&mvotg->pdev->dev, "b_sess_vld %d\n", otg_ctrl->b_sess_vld); in mv_otg_update_inputs()
324 dev_dbg(&mvotg->pdev->dev, "b_sess_end %d\n", otg_ctrl->b_sess_end); in mv_otg_update_inputs()
325 dev_dbg(&mvotg->pdev->dev, "a_vbus_vld %d\n", otg_ctrl->a_vbus_vld); in mv_otg_update_inputs()
326 dev_dbg(&mvotg->pdev->dev, "a_sess_vld %d\n", otg_ctrl->a_sess_vld); in mv_otg_update_inputs()
331 struct mv_otg_ctrl *otg_ctrl = &mvotg->otg_ctrl; in mv_otg_update_state()
332 int old_state = mvotg->phy.otg->state; in mv_otg_update_state()
336 mvotg->phy.otg->state = OTG_STATE_B_IDLE; in mv_otg_update_state()
339 if (otg_ctrl->id == 0) in mv_otg_update_state()
340 mvotg->phy.otg->state = OTG_STATE_A_IDLE; in mv_otg_update_state()
341 else if (otg_ctrl->b_sess_vld) in mv_otg_update_state()
342 mvotg->phy.otg->state = OTG_STATE_B_PERIPHERAL; in mv_otg_update_state()
345 if (!otg_ctrl->b_sess_vld || otg_ctrl->id == 0) in mv_otg_update_state()
346 mvotg->phy.otg->state = OTG_STATE_B_IDLE; in mv_otg_update_state()
349 if (otg_ctrl->id) in mv_otg_update_state()
350 mvotg->phy.otg->state = OTG_STATE_B_IDLE; in mv_otg_update_state()
351 else if (!(otg_ctrl->a_bus_drop) && in mv_otg_update_state()
352 (otg_ctrl->a_bus_req || otg_ctrl->a_srp_det)) in mv_otg_update_state()
353 mvotg->phy.otg->state = OTG_STATE_A_WAIT_VRISE; in mv_otg_update_state()
356 if (otg_ctrl->a_vbus_vld) in mv_otg_update_state()
357 mvotg->phy.otg->state = OTG_STATE_A_WAIT_BCON; in mv_otg_update_state()
360 if (otg_ctrl->id || otg_ctrl->a_bus_drop in mv_otg_update_state()
361 || otg_ctrl->a_wait_bcon_timeout) { in mv_otg_update_state()
363 mvotg->otg_ctrl.a_wait_bcon_timeout = 0; in mv_otg_update_state()
364 mvotg->phy.otg->state = OTG_STATE_A_WAIT_VFALL; in mv_otg_update_state()
365 otg_ctrl->a_bus_req = 0; in mv_otg_update_state()
366 } else if (!otg_ctrl->a_vbus_vld) { in mv_otg_update_state()
368 mvotg->otg_ctrl.a_wait_bcon_timeout = 0; in mv_otg_update_state()
369 mvotg->phy.otg->state = OTG_STATE_A_VBUS_ERR; in mv_otg_update_state()
370 } else if (otg_ctrl->b_conn) { in mv_otg_update_state()
372 mvotg->otg_ctrl.a_wait_bcon_timeout = 0; in mv_otg_update_state()
373 mvotg->phy.otg->state = OTG_STATE_A_HOST; in mv_otg_update_state()
377 if (otg_ctrl->id || !otg_ctrl->b_conn in mv_otg_update_state()
378 || otg_ctrl->a_bus_drop) in mv_otg_update_state()
379 mvotg->phy.otg->state = OTG_STATE_A_WAIT_BCON; in mv_otg_update_state()
380 else if (!otg_ctrl->a_vbus_vld) in mv_otg_update_state()
381 mvotg->phy.otg->state = OTG_STATE_A_VBUS_ERR; in mv_otg_update_state()
384 if (otg_ctrl->id in mv_otg_update_state()
385 || (!otg_ctrl->b_conn && otg_ctrl->a_sess_vld) in mv_otg_update_state()
386 || otg_ctrl->a_bus_req) in mv_otg_update_state()
387 mvotg->phy.otg->state = OTG_STATE_A_IDLE; in mv_otg_update_state()
390 if (otg_ctrl->id || otg_ctrl->a_clr_err in mv_otg_update_state()
391 || otg_ctrl->a_bus_drop) { in mv_otg_update_state()
392 otg_ctrl->a_clr_err = 0; in mv_otg_update_state()
393 mvotg->phy.otg->state = OTG_STATE_A_WAIT_VFALL; in mv_otg_update_state()
405 struct usb_otg *otg; in mv_otg_work() local
412 phy = &mvotg->phy; in mv_otg_work()
413 otg = mvotg->phy.otg; in mv_otg_work()
414 old_state = otg->state; in mv_otg_work()
416 if (!mvotg->active) in mv_otg_work()
422 if (old_state != mvotg->phy.otg->state) { in mv_otg_work()
423 dev_info(&mvotg->pdev->dev, "change from state %s to %s\n", in mv_otg_work()
425 state_string[mvotg->phy.otg->state]); in mv_otg_work()
427 switch (mvotg->phy.otg->state) { in mv_otg_work()
429 otg->default_a = 0; in mv_otg_work()
434 usb_phy_set_event(&mvotg->phy, USB_EVENT_NONE); in mv_otg_work()
439 usb_phy_set_event(&mvotg->phy, USB_EVENT_ENUMERATED); in mv_otg_work()
442 otg->default_a = 1; in mv_otg_work()
449 mv_otg_set_vbus(otg, 1); in mv_otg_work()
460 mvotg->otg_ctrl.b_conn = 1; in mv_otg_work()
469 mvotg->otg_ctrl.b_conn = 0; in mv_otg_work()
470 mv_otg_set_vbus(otg, 0); in mv_otg_work()
486 otgsc = readl(&mvotg->op_regs->otgsc); in mv_otg_irq()
487 writel(otgsc, &mvotg->op_regs->otgsc); in mv_otg_irq()
490 * if we have vbus, then the vbus detection for B-device in mv_otg_irq()
493 if (mvotg->pdata->vbus) in mv_otg_irq()
498 if ((otgsc & mvotg->irq_status) == 0) in mv_otg_irq()
511 if (!mvotg->active) { in mv_otg_inputs_irq()
526 mvotg->otg_ctrl.a_bus_req); in a_bus_req_show()
536 return -1; in a_bus_req_store()
539 if (mvotg->phy.otg->state != OTG_STATE_B_IDLE in a_bus_req_store()
540 && mvotg->phy.otg->state != OTG_STATE_A_IDLE) in a_bus_req_store()
541 return -1; in a_bus_req_store()
543 /* The clock may disabled and we need to set irq for ID detected */ in a_bus_req_store()
548 mvotg->otg_ctrl.a_bus_req = 1; in a_bus_req_store()
549 mvotg->otg_ctrl.a_bus_drop = 0; in a_bus_req_store()
550 dev_dbg(&mvotg->pdev->dev, in a_bus_req_store()
553 if (spin_trylock(&mvotg->wq_lock)) { in a_bus_req_store()
555 spin_unlock(&mvotg->wq_lock); in a_bus_req_store()
569 if (!mvotg->phy.otg->default_a) in a_clr_err_store()
570 return -1; in a_clr_err_store()
573 return -1; in a_clr_err_store()
576 mvotg->otg_ctrl.a_clr_err = 1; in a_clr_err_store()
577 dev_dbg(&mvotg->pdev->dev, in a_clr_err_store()
581 if (spin_trylock(&mvotg->wq_lock)) { in a_clr_err_store()
583 spin_unlock(&mvotg->wq_lock); in a_clr_err_store()
597 mvotg->otg_ctrl.a_bus_drop); in a_bus_drop_show()
605 if (!mvotg->phy.otg->default_a) in a_bus_drop_store()
606 return -1; in a_bus_drop_store()
609 return -1; in a_bus_drop_store()
612 mvotg->otg_ctrl.a_bus_drop = 0; in a_bus_drop_store()
613 dev_dbg(&mvotg->pdev->dev, in a_bus_drop_store()
616 mvotg->otg_ctrl.a_bus_drop = 1; in a_bus_drop_store()
617 mvotg->otg_ctrl.a_bus_req = 0; in a_bus_drop_store()
618 dev_dbg(&mvotg->pdev->dev, in a_bus_drop_store()
620 dev_dbg(&mvotg->pdev->dev, in a_bus_drop_store()
624 if (spin_trylock(&mvotg->wq_lock)) { in a_bus_drop_store()
626 spin_unlock(&mvotg->wq_lock); in a_bus_drop_store()
650 sysfs_remove_group(&mvotg->pdev->dev.kobj, &inputs_attr_group); in mv_otg_remove()
652 if (mvotg->qwork) { in mv_otg_remove()
653 flush_workqueue(mvotg->qwork); in mv_otg_remove()
654 destroy_workqueue(mvotg->qwork); in mv_otg_remove()
659 usb_remove_phy(&mvotg->phy); in mv_otg_remove()
666 struct mv_usb_platform_data *pdata = dev_get_platdata(&pdev->dev); in mv_otg_probe()
668 struct usb_otg *otg; in mv_otg_probe() local
673 dev_err(&pdev->dev, "failed to get platform data\n"); in mv_otg_probe()
674 return -ENODEV; in mv_otg_probe()
677 mvotg = devm_kzalloc(&pdev->dev, sizeof(*mvotg), GFP_KERNEL); in mv_otg_probe()
679 return -ENOMEM; in mv_otg_probe()
681 otg = devm_kzalloc(&pdev->dev, sizeof(*otg), GFP_KERNEL); in mv_otg_probe()
682 if (!otg) in mv_otg_probe()
683 return -ENOMEM; in mv_otg_probe()
687 mvotg->pdev = pdev; in mv_otg_probe()
688 mvotg->pdata = pdata; in mv_otg_probe()
690 mvotg->clk = devm_clk_get(&pdev->dev, NULL); in mv_otg_probe()
691 if (IS_ERR(mvotg->clk)) in mv_otg_probe()
692 return PTR_ERR(mvotg->clk); in mv_otg_probe()
694 mvotg->qwork = create_singlethread_workqueue("mv_otg_queue"); in mv_otg_probe()
695 if (!mvotg->qwork) { in mv_otg_probe()
696 dev_dbg(&pdev->dev, "cannot create workqueue for OTG\n"); in mv_otg_probe()
697 return -ENOMEM; in mv_otg_probe()
700 INIT_DELAYED_WORK(&mvotg->work, mv_otg_work); in mv_otg_probe()
702 /* OTG common part */ in mv_otg_probe()
703 mvotg->pdev = pdev; in mv_otg_probe()
704 mvotg->phy.dev = &pdev->dev; in mv_otg_probe()
705 mvotg->phy.otg = otg; in mv_otg_probe()
706 mvotg->phy.label = driver_name; in mv_otg_probe()
708 otg->state = OTG_STATE_UNDEFINED; in mv_otg_probe()
709 otg->usb_phy = &mvotg->phy; in mv_otg_probe()
710 otg->set_host = mv_otg_set_host; in mv_otg_probe()
711 otg->set_peripheral = mv_otg_set_peripheral; in mv_otg_probe()
712 otg->set_vbus = mv_otg_set_vbus; in mv_otg_probe()
715 timer_setup(&mvotg->otg_ctrl.timer[i], in mv_otg_probe()
718 r = platform_get_resource_byname(mvotg->pdev, in mv_otg_probe()
721 dev_err(&pdev->dev, "no phy I/O memory resource defined\n"); in mv_otg_probe()
722 retval = -ENODEV; in mv_otg_probe()
726 mvotg->phy_regs = devm_ioremap(&pdev->dev, r->start, resource_size(r)); in mv_otg_probe()
727 if (mvotg->phy_regs == NULL) { in mv_otg_probe()
728 dev_err(&pdev->dev, "failed to map phy I/O memory\n"); in mv_otg_probe()
729 retval = -EFAULT; in mv_otg_probe()
733 r = platform_get_resource_byname(mvotg->pdev, in mv_otg_probe()
736 dev_err(&pdev->dev, "no I/O memory resource defined\n"); in mv_otg_probe()
737 retval = -ENODEV; in mv_otg_probe()
741 mvotg->cap_regs = devm_ioremap(&pdev->dev, r->start, resource_size(r)); in mv_otg_probe()
742 if (mvotg->cap_regs == NULL) { in mv_otg_probe()
743 dev_err(&pdev->dev, "failed to map I/O memory\n"); in mv_otg_probe()
744 retval = -EFAULT; in mv_otg_probe()
751 dev_err(&pdev->dev, "mv otg enable error %d\n", retval); in mv_otg_probe()
755 mvotg->op_regs = in mv_otg_probe()
756 (struct mv_otg_regs __iomem *) ((unsigned long) mvotg->cap_regs in mv_otg_probe()
757 + (readl(mvotg->cap_regs) & CAPLENGTH_MASK)); in mv_otg_probe()
759 if (pdata->id) { in mv_otg_probe()
760 retval = devm_request_threaded_irq(&pdev->dev, pdata->id->irq, in mv_otg_probe()
762 IRQF_ONESHOT, "id", mvotg); in mv_otg_probe()
764 dev_info(&pdev->dev, in mv_otg_probe()
765 "Failed to request irq for ID\n"); in mv_otg_probe()
766 pdata->id = NULL; in mv_otg_probe()
770 if (pdata->vbus) { in mv_otg_probe()
771 mvotg->clock_gating = 1; in mv_otg_probe()
772 retval = devm_request_threaded_irq(&pdev->dev, pdata->vbus->irq, in mv_otg_probe()
776 dev_info(&pdev->dev, in mv_otg_probe()
779 mvotg->clock_gating = 0; in mv_otg_probe()
780 pdata->vbus = NULL; in mv_otg_probe()
784 if (pdata->disable_otg_clock_gating) in mv_otg_probe()
785 mvotg->clock_gating = 0; in mv_otg_probe()
790 r = platform_get_resource(mvotg->pdev, IORESOURCE_IRQ, 0); in mv_otg_probe()
792 dev_err(&pdev->dev, "no IRQ resource defined\n"); in mv_otg_probe()
793 retval = -ENODEV; in mv_otg_probe()
797 mvotg->irq = r->start; in mv_otg_probe()
798 if (devm_request_irq(&pdev->dev, mvotg->irq, mv_otg_irq, IRQF_SHARED, in mv_otg_probe()
800 dev_err(&pdev->dev, "Request irq %d for OTG failed\n", in mv_otg_probe()
801 mvotg->irq); in mv_otg_probe()
802 mvotg->irq = 0; in mv_otg_probe()
803 retval = -ENODEV; in mv_otg_probe()
807 retval = usb_add_phy(&mvotg->phy, USB_PHY_TYPE_USB2); in mv_otg_probe()
809 dev_err(&pdev->dev, "can't register transceiver, %d\n", in mv_otg_probe()
814 retval = sysfs_create_group(&pdev->dev.kobj, &inputs_attr_group); in mv_otg_probe()
816 dev_dbg(&pdev->dev, in mv_otg_probe()
821 spin_lock_init(&mvotg->wq_lock); in mv_otg_probe()
822 if (spin_trylock(&mvotg->wq_lock)) { in mv_otg_probe()
824 spin_unlock(&mvotg->wq_lock); in mv_otg_probe()
827 dev_info(&pdev->dev, in mv_otg_probe()
828 "successful probe OTG device %s clock gating.\n", in mv_otg_probe()
829 mvotg->clock_gating ? "with" : "without"); in mv_otg_probe()
834 usb_remove_phy(&mvotg->phy); in mv_otg_probe()
838 flush_workqueue(mvotg->qwork); in mv_otg_probe()
839 destroy_workqueue(mvotg->qwork); in mv_otg_probe()
849 if (mvotg->phy.otg->state != OTG_STATE_B_IDLE) { in mv_otg_suspend()
850 dev_info(&pdev->dev, in mv_otg_suspend()
851 "OTG state is not B_IDLE, it is %d!\n", in mv_otg_suspend()
852 mvotg->phy.otg->state); in mv_otg_suspend()
853 return -EAGAIN; in mv_otg_suspend()
856 if (!mvotg->clock_gating) in mv_otg_suspend()
867 if (!mvotg->clock_gating) { in mv_otg_resume()
870 otgsc = readl(&mvotg->op_regs->otgsc); in mv_otg_resume()
871 otgsc |= mvotg->irq_en; in mv_otg_resume()
872 writel(otgsc, &mvotg->op_regs->otgsc); in mv_otg_resume()
874 if (spin_trylock(&mvotg->wq_lock)) { in mv_otg_resume()
876 spin_unlock(&mvotg->wq_lock); in mv_otg_resume()