3 #include "usbdev_grf_regs.h"
4 #include "dwc_otg_regs.h"
5 static struct dwc_otg_control_usb *control_usb;
7 #ifdef CONFIG_USB20_OTG
8 static void usb20otg_hw_init(void)
10 /* Turn off differential receiver in suspend mode */
11 writel(UOC_HIWORD_UPDATE(0, 1, 2),
12 RK_GRF_VIRT + RK312X_GRF_USBPHY0_CON6);
13 /* Set disconnect detection trigger point to 600mv */
14 writel(UOC_HIWORD_UPDATE(0, 0xf, 11),
15 RK_GRF_VIRT + RK312X_GRF_USBPHY0_CON7);
16 /* other haredware init,include:
17 * DRV_VBUS GPIO init */
18 if (gpio_is_valid(control_usb->otg_gpios->gpio)) {
19 if (gpio_get_value(control_usb->otg_gpios->gpio))
20 gpio_set_value(control_usb->otg_gpios->gpio, 0);
24 static void usb20otg_phy_suspend(void *pdata, int suspend)
26 struct dwc_otg_platform_data *usbpdata = pdata;
29 /* enable soft control */
30 writel(UOC_HIWORD_UPDATE(0x1d1, 0x1ff, 0),
31 RK_GRF_VIRT + RK312X_GRF_UOC0_CON0);
32 usbpdata->phy_status = 1;
35 writel(UOC_HIWORD_UPDATE(0x0, 0x1, 0),
36 RK_GRF_VIRT + RK312X_GRF_UOC0_CON0);
37 usbpdata->phy_status = 0;
41 static void usb20otg_soft_reset(void *pdata, enum rkusb_rst_flag rst_type)
43 struct dwc_otg_platform_data *usbpdata = pdata;
44 struct reset_control *rst_otg_h, *rst_otg_p, *rst_otg_c;
46 rst_otg_h = devm_reset_control_get(usbpdata->dev, "otg_ahb");
47 rst_otg_p = devm_reset_control_get(usbpdata->dev, "otg_phy");
48 rst_otg_c = devm_reset_control_get(usbpdata->dev, "otg_controller");
49 if (IS_ERR(rst_otg_h) || IS_ERR(rst_otg_p) || IS_ERR(rst_otg_c)) {
50 dev_err(usbpdata->dev, "Fail to get reset control from dts\n");
57 writel(UOC_HIWORD_UPDATE(0x1, 0x3, 0),
58 RK_GRF_VIRT + RK312X_GRF_UOC0_CON0);
59 reset_control_assert(rst_otg_p);
61 writel(UOC_HIWORD_UPDATE(0x2, 0x3, 0),
62 RK_GRF_VIRT + RK312X_GRF_UOC0_CON0);
64 reset_control_deassert(rst_otg_p);
67 /* Controller reset */
68 reset_control_assert(rst_otg_c);
69 reset_control_assert(rst_otg_h);
73 reset_control_deassert(rst_otg_c);
74 reset_control_deassert(rst_otg_h);
82 static void usb20otg_clock_init(void *pdata)
84 struct dwc_otg_platform_data *usbpdata = pdata;
85 struct clk *ahbclk, *phyclk;
87 ahbclk = devm_clk_get(usbpdata->dev, "hclk_usb0");
89 dev_err(usbpdata->dev, "Failed to get hclk_usb0\n");
93 phyclk = devm_clk_get(usbpdata->dev, "clk_usbphy0");
95 dev_err(usbpdata->dev, "Failed to get clk_usbphy0\n");
99 usbpdata->phyclk = phyclk;
100 usbpdata->ahbclk = ahbclk;
103 static void usb20otg_clock_enable(void *pdata, int enable)
105 struct dwc_otg_platform_data *usbpdata = pdata;
108 clk_prepare_enable(usbpdata->ahbclk);
109 clk_prepare_enable(usbpdata->phyclk);
111 clk_disable_unprepare(usbpdata->ahbclk);
113 clk_disable_unprepare(usbpdata->phyclk);
118 static int usb20otg_get_status(int id)
121 u32 soc_status0 = readl(RK_GRF_VIRT + RK312X_GRF_SOC_STATUS0);
123 case USB_STATUS_BVABLID:
125 ret = soc_status0 & (0x1 << 5);
127 case USB_STATUS_DPDM:
129 ret = soc_status0 & (0x3 << 6);
133 ret = soc_status0 & (0x1 << 8);
135 case USB_STATUS_UARTMODE:
136 ret = readl(RK_GRF_VIRT + RK312X_GRF_UOC1_CON4) & (1 << 12);
139 ret = control_usb->chip_id;
141 case USB_REMOTE_WAKEUP:
142 ret = control_usb->remote_wakeup;
145 ret = control_usb->usb_irq_wakeup;
153 #ifdef CONFIG_RK_USB_UART
155 * dwc_otg_uart_enabled - check if a usb-uart bypass func is enabled in DT
157 * Returns true if the status property of node "usb_uart" is set to "okay"
158 * or "ok", if this property is absent it will use the default status "ok"
161 static bool dwc_otg_uart_enabled(void)
163 struct device_node *np;
165 np = of_find_node_by_name(NULL, "usb_uart");
166 if (np && of_device_is_available(np))
172 static void dwc_otg_uart_mode(void *pdata, int enter_usb_uart_mode)
174 if ((1 == enter_usb_uart_mode) && dwc_otg_uart_enabled()) {
175 /* bypass dm, enter uart mode */
176 writel(UOC_HIWORD_UPDATE(0x3, 0x3, 12), RK_GRF_VIRT +
177 RK312X_GRF_UOC1_CON4);
179 } else if (0 == enter_usb_uart_mode) {
181 writel(UOC_HIWORD_UPDATE(0x0, 0x3, 12), RK_GRF_VIRT +
182 RK312X_GRF_UOC1_CON4);
186 static void dwc_otg_uart_mode(void *pdata, int enter_usb_uart_mode)
191 static void usb20otg_power_enable(int enable)
194 rk_battery_charger_detect_cb(USB_OTG_POWER_OFF);
195 /* disable otg_drv power */
196 if (gpio_is_valid(control_usb->otg_gpios->gpio))
197 gpio_set_value(control_usb->otg_gpios->gpio, 0);
198 } else if (1 == enable) {
199 rk_battery_charger_detect_cb(USB_OTG_POWER_ON);
200 /* enable otg_drv power */
201 if (gpio_is_valid(control_usb->otg_gpios->gpio))
202 gpio_set_value(control_usb->otg_gpios->gpio, 1);
205 static void usb20otg_phy_power_down(int power_down)
207 if (power_down == PHY_POWER_DOWN) {
208 if (control_usb->linestate_wakeup) {
209 /* enable otg0_linestate irq */
210 writel(UOC_HIWORD_UPDATE(0x3, 0x3, 14),
211 RK_GRF_VIRT + RK312X_GRF_UOC1_CON5);
212 /* enable otg1_linestate irq */
213 writel(UOC_HIWORD_UPDATE(0x3, 0x3, 12),
214 RK_GRF_VIRT + RK312X_GRF_UOC0_CON0);
216 } else if (power_down == PHY_POWER_UP) {
220 struct dwc_otg_platform_data usb20otg_pdata_rk3126 = {
225 .hw_init = usb20otg_hw_init,
226 .phy_suspend = usb20otg_phy_suspend,
227 .soft_reset = usb20otg_soft_reset,
228 .clock_init = usb20otg_clock_init,
229 .clock_enable = usb20otg_clock_enable,
230 .get_status = usb20otg_get_status,
231 .power_enable = usb20otg_power_enable,
232 .dwc_otg_uart_mode = dwc_otg_uart_mode,
233 .bc_detect_cb = rk_battery_charger_detect_cb,
234 .phy_power_down = usb20otg_phy_power_down,
238 #if defined(CONFIG_USB20_HOST) || defined(CONFIG_USB_EHCI_RK)
239 static void usb20host_hw_init(void)
241 /* Turn off differential receiver in suspend mode */
242 writel(UOC_HIWORD_UPDATE(0, 1, 2),
243 RK_GRF_VIRT + RK312X_GRF_USBPHY1_CON6);
244 /* Set disconnect detection trigger point to 600mv */
245 writel(UOC_HIWORD_UPDATE(1, 0xf, 11),
246 RK_GRF_VIRT + RK312X_GRF_USBPHY1_CON7);
247 /* other haredware init,include:
248 * DRV_VBUS GPIO init */
249 if (gpio_is_valid(control_usb->host_gpios->gpio)) {
250 if (!gpio_get_value(control_usb->host_gpios->gpio))
251 gpio_set_value(control_usb->host_gpios->gpio, 1);
255 static void usb20host_phy_suspend(void *pdata, int suspend)
257 struct dwc_otg_platform_data *usbpdata = pdata;
260 /* enable soft control */
261 writel(UOC_HIWORD_UPDATE(0x1d5, 0x1ff, 0),
262 RK_GRF_VIRT + RK312X_GRF_UOC1_CON5);
263 usbpdata->phy_status = 1;
266 writel(UOC_HIWORD_UPDATE(0x0, 0x1, 0),
267 RK_GRF_VIRT + RK312X_GRF_UOC1_CON5);
268 usbpdata->phy_status = 0;
272 static void usb20host_soft_reset(void *pdata, enum rkusb_rst_flag rst_type)
274 struct dwc_otg_platform_data *usbpdata = pdata;
275 struct reset_control *rst_host_h, *rst_host_p, *rst_host_c;
277 rst_host_h = devm_reset_control_get(usbpdata->dev, "host_ahb");
278 rst_host_p = devm_reset_control_get(usbpdata->dev, "host_phy");
279 rst_host_c = devm_reset_control_get(usbpdata->dev, "host_controller");
280 if (IS_ERR(rst_host_h) || IS_ERR(rst_host_p) || IS_ERR(rst_host_c)) {
281 dev_err(usbpdata->dev, "Fail to get reset control from dts\n");
288 writel(UOC_HIWORD_UPDATE(0x1, 0x3, 0),
289 RK_GRF_VIRT + RK312X_GRF_UOC1_CON5);
290 reset_control_assert(rst_host_p);
292 writel(UOC_HIWORD_UPDATE(0x2, 0x3, 0),
293 RK_GRF_VIRT + RK312X_GRF_UOC1_CON5);
296 reset_control_deassert(rst_host_p);
298 /* Controller reset */
299 reset_control_assert(rst_host_c);
300 reset_control_assert(rst_host_h);
304 reset_control_deassert(rst_host_c);
305 reset_control_deassert(rst_host_h);
313 static void usb20host_clock_init(void *pdata)
315 struct dwc_otg_platform_data *usbpdata = pdata;
316 struct clk *ahbclk, *phyclk;
318 ahbclk = devm_clk_get(usbpdata->dev, "hclk_usb1");
319 if (IS_ERR(ahbclk)) {
320 dev_err(usbpdata->dev, "Failed to get hclk_usb1\n");
324 phyclk = devm_clk_get(usbpdata->dev, "clk_usbphy1");
325 if (IS_ERR(phyclk)) {
326 dev_err(usbpdata->dev, "Failed to get clk_usbphy1\n");
330 usbpdata->phyclk = phyclk;
331 usbpdata->ahbclk = ahbclk;
334 static void usb20host_clock_enable(void *pdata, int enable)
336 struct dwc_otg_platform_data *usbpdata = pdata;
339 clk_prepare_enable(usbpdata->ahbclk);
340 clk_prepare_enable(usbpdata->phyclk);
342 clk_disable_unprepare(usbpdata->ahbclk);
343 clk_disable_unprepare(usbpdata->phyclk);
347 static int usb20host_get_status(int id)
350 u32 soc_status0 = readl(RK_GRF_VIRT + RK312X_GRF_SOC_STATUS0);
353 case USB_STATUS_BVABLID:
355 ret = soc_status0 & (0x1 << 10);
357 case USB_STATUS_DPDM:
359 ret = soc_status0 & (0x3 << 11);
366 ret = control_usb->chip_id;
368 case USB_REMOTE_WAKEUP:
369 ret = control_usb->remote_wakeup;
372 ret = control_usb->usb_irq_wakeup;
380 static void usb20host_power_enable(int enable)
383 /* disable host_drv power */
384 /* do not disable power in default */
385 } else if (1 == enable) {
386 /* enable host_drv power */
387 if (gpio_is_valid(control_usb->host_gpios->gpio))
388 gpio_set_value(control_usb->host_gpios->gpio, 1);
392 struct dwc_otg_platform_data usb20host_pdata_rk3126 = {
397 .hw_init = usb20host_hw_init,
398 .phy_suspend = usb20host_phy_suspend,
399 .soft_reset = usb20host_soft_reset,
400 .clock_init = usb20host_clock_init,
401 .clock_enable = usb20host_clock_enable,
402 .get_status = usb20host_get_status,
403 .power_enable = usb20host_power_enable,
407 #ifdef CONFIG_USB_EHCI_RK
408 static void usb20ehci_phy_suspend(void *pdata, int suspend)
410 struct rkehci_platform_data *usbpdata = pdata;
413 /* enable soft control */
414 writel(UOC_HIWORD_UPDATE(0x1d1, 0x1ff, 0),
415 RK_GRF_VIRT + RK312X_GRF_UOC1_CON5);
416 usbpdata->phy_status = 1;
419 writel(UOC_HIWORD_UPDATE(0x0, 0x1, 0),
420 RK_GRF_VIRT + RK312X_GRF_UOC1_CON5);
421 usbpdata->phy_status = 0;
425 static void usb20ehci_soft_reset(void *pdata, enum rkusb_rst_flag rst_type)
427 struct rkehci_platform_data *usbpdata = pdata;
428 struct reset_control *rst_host_h, *rst_host_p, *rst_host_c;
430 rst_host_h = devm_reset_control_get(usbpdata->dev, "host_ahb");
431 rst_host_p = devm_reset_control_get(usbpdata->dev, "host_phy");
432 rst_host_c = devm_reset_control_get(usbpdata->dev, "host_controller");
433 if (IS_ERR(rst_host_h) || IS_ERR(rst_host_p) || IS_ERR(rst_host_c)) {
434 dev_err(usbpdata->dev, "Fail to get reset control from dts\n");
441 writel(UOC_HIWORD_UPDATE(0x1, 0x3, 0),
442 RK_GRF_VIRT + RK312X_GRF_UOC1_CON5);
443 reset_control_assert(rst_host_p);
445 writel(UOC_HIWORD_UPDATE(0x2, 0x3, 0),
446 RK_GRF_VIRT + RK312X_GRF_UOC1_CON5);
449 reset_control_deassert(rst_host_p);
451 /* Controller reset */
452 reset_control_assert(rst_host_c);
453 reset_control_assert(rst_host_h);
457 reset_control_deassert(rst_host_c);
458 reset_control_deassert(rst_host_h);
466 static void usb20ehci_clock_init(void *pdata)
468 struct rkehci_platform_data *usbpdata = pdata;
469 struct clk *ahbclk, *phyclk;
471 ahbclk = devm_clk_get(usbpdata->dev, "hclk_host0");
472 if (IS_ERR(ahbclk)) {
473 dev_err(usbpdata->dev, "Failed to get hclk_usb1\n");
477 phyclk = devm_clk_get(usbpdata->dev, "clk_usbphy1");
478 if (IS_ERR(phyclk)) {
479 dev_err(usbpdata->dev, "Failed to get clk_usbphy1\n");
483 usbpdata->phyclk = phyclk;
484 usbpdata->ahbclk = ahbclk;
487 static void usb20ehci_clock_enable(void *pdata, int enable)
489 struct rkehci_platform_data *usbpdata = pdata;
492 clk_prepare_enable(usbpdata->ahbclk);
493 clk_prepare_enable(usbpdata->phyclk);
495 clk_disable_unprepare(usbpdata->ahbclk);
496 clk_disable_unprepare(usbpdata->phyclk);
500 struct rkehci_platform_data usb20ehci_pdata_rk3126 = {
504 .hw_init = usb20host_hw_init,
505 .phy_suspend = usb20ehci_phy_suspend,
506 .soft_reset = usb20ehci_soft_reset,
507 .clock_init = usb20ehci_clock_init,
508 .clock_enable = usb20ehci_clock_enable,
509 .get_status = usb20host_get_status,
513 struct dwc_otg_platform_data usb20ohci_pdata_rk3126;
516 static const struct of_device_id rk_usb_control_id_table[] = {
518 .compatible = "rockchip,rk3126-usb-control",
523 /*********************************************************************
524 rk3126 usb detections
525 *********************************************************************/
527 #define WAKE_LOCK_TIMEOUT (HZ * 10)
528 static inline void do_wakeup(struct work_struct *work)
530 /* wake up the system */
531 rk_send_wakeup_key();
534 static void usb_battery_charger_detect_work(struct work_struct *work)
536 rk_battery_charger_detect_cb(usb_battery_charger_detect(1));
539 /********** handler for bvalid irq **********/
540 static irqreturn_t bvalid_irq_handler(int irq, void *dev_id)
543 writel(UOC_HIWORD_UPDATE(0x1, 0x1, 15),
544 RK_GRF_VIRT + RK312X_GRF_UOC0_CON0);
545 #ifdef CONFIG_RK_USB_UART
546 /* usb otg dp/dm switch to usb phy */
547 dwc_otg_uart_mode(NULL, PHY_USB_MODE);
550 if (control_usb->usb_irq_wakeup) {
551 wake_lock_timeout(&control_usb->usb_wakelock,
553 schedule_delayed_work(&control_usb->usb_det_wakeup_work,
557 schedule_delayed_work(&control_usb->usb_charger_det_work, HZ / 10);
562 /********** Handler for linestate irq **********/
563 static irqreturn_t otg0_linestate_irq_handler(int irq, void *dev_id)
566 * Here is a chip hwrdware bug, when disable/enable
567 * linestate irq bit the state machine will not reset
568 * So here have to add a delay to wait the linestate filter
569 * timer run out (linestate filter time had been set to 100us)
573 /* clear and disable irq */
574 writel(UOC_HIWORD_UPDATE(0x2, 0x3, 12),
575 RK_GRF_VIRT + RK312X_GRF_UOC0_CON0);
578 if (control_usb->usb_irq_wakeup) {
579 wake_lock_timeout(&control_usb->usb_wakelock,
586 static irqreturn_t otg1_linestate_irq_handler(int irq, void *dev_id)
589 * Here is a chip hwrdware bug, when disable/enable
590 * linestate irq bit the state machine will not reset
591 * So here have to add a delay to wait the linestate filter
592 * timer run out (linestate filter time had been set to 100us)
596 /* clear and disable irq */
597 writel(UOC_HIWORD_UPDATE(0x2, 0x3, 14),
598 RK_GRF_VIRT + RK312X_GRF_UOC1_CON5);
601 if (control_usb->usb_irq_wakeup) {
602 wake_lock_timeout(&control_usb->usb_wakelock,
609 /************* register usb detection irqs **************/
610 static int otg_irq_detect_init(struct platform_device *pdev)
615 if (control_usb->usb_irq_wakeup) {
616 wake_lock_init(&control_usb->usb_wakelock, WAKE_LOCK_SUSPEND,
618 INIT_DELAYED_WORK(&control_usb->usb_det_wakeup_work, do_wakeup);
621 /* register otg_bvalid irq */
622 irq = platform_get_irq_byname(pdev, "otg_bvalid");
623 if ((irq > 0) && control_usb->usb_irq_wakeup) {
624 ret = request_irq(irq, bvalid_irq_handler,
625 0, "otg_bvalid", NULL);
627 dev_err(&pdev->dev, "request_irq %d failed!\n", irq);
629 /* enable bvalid irq */
630 writel(UOC_HIWORD_UPDATE(0x1, 0x1, 14),
631 RK_GRF_VIRT + RK312X_GRF_UOC0_CON0);
635 if (!control_usb->linestate_wakeup)
638 /* Set otg0&1_linestate_filter time to 100us */
639 writel(UOC_HIWORD_UPDATE(0x0, 0xf, 6), RK_GRF_VIRT + 0x1a0);
641 /* Register otg0_linestate irq */
642 irq = platform_get_irq_byname(pdev, "otg0_linestate");
644 ret = request_irq(irq, otg0_linestate_irq_handler,
645 0, "otg0_linestate", NULL);
647 dev_err(&pdev->dev, "request_irq %d failed!\n", irq);
649 /* Clear otg0_linestate irq */
650 writel(UOC_HIWORD_UPDATE(0x2, 0x3, 12),
651 RK_GRF_VIRT + RK312X_GRF_UOC0_CON0);
655 /* Register otg1_linestate irq */
656 irq = platform_get_irq_byname(pdev, "otg1_linestate");
658 ret = request_irq(irq, otg1_linestate_irq_handler,
659 0, "otg1_linestate", NULL);
661 dev_err(&pdev->dev, "request_irq %d failed!\n", irq);
663 /* Clear otg1_linestate irq */
664 writel(UOC_HIWORD_UPDATE(0x2, 0x3, 14),
665 RK_GRF_VIRT + RK312X_GRF_UOC1_CON5);
671 /********** end of rk3126 usb detections **********/
672 static int rk_usb_control_probe(struct platform_device *pdev)
675 struct device_node *np = pdev->dev.of_node;
679 devm_kzalloc(&pdev->dev, sizeof(*control_usb), GFP_KERNEL);
681 dev_err(&pdev->dev, "unable to alloc memory for control usb\n");
686 control_usb->chip_id = RK3126_USB_CTLR;
687 control_usb->remote_wakeup = of_property_read_bool(np,
688 "rockchip,remote_wakeup");
689 control_usb->usb_irq_wakeup = of_property_read_bool(np,
690 "rockchip,usb_irq_wakeup");
691 control_usb->linestate_wakeup = of_property_read_bool(np,
692 "rockchip,linestate_wakeup");
694 INIT_DELAYED_WORK(&control_usb->usb_charger_det_work,
695 usb_battery_charger_detect_work);
697 control_usb->host_gpios =
698 devm_kzalloc(&pdev->dev, sizeof(struct gpio), GFP_KERNEL);
699 if (!control_usb->host_gpios) {
700 dev_err(&pdev->dev, "unable to alloc memory for host_gpios\n");
705 gpio = of_get_named_gpio(np, "host_drv_gpio", 0);
706 control_usb->host_gpios->gpio = gpio;
708 if (!gpio_is_valid(gpio)) {
709 dev_err(&pdev->dev, "invalid host gpio%d\n", gpio);
711 err = devm_gpio_request(&pdev->dev, gpio, "host_drv_gpio");
714 "failed to request GPIO%d for host_drv\n",
719 gpio_direction_output(control_usb->host_gpios->gpio, 1);
722 control_usb->otg_gpios =
723 devm_kzalloc(&pdev->dev, sizeof(struct gpio), GFP_KERNEL);
724 if (!control_usb->otg_gpios) {
725 dev_err(&pdev->dev, "unable to alloc memory for otg_gpios\n");
730 gpio = of_get_named_gpio(np, "otg_drv_gpio", 0);
731 control_usb->otg_gpios->gpio = gpio;
733 if (!gpio_is_valid(gpio)) {
734 dev_err(&pdev->dev, "invalid otg gpio%d\n", gpio);
736 err = devm_gpio_request(&pdev->dev, gpio, "otg_drv_gpio");
739 "failed to request GPIO%d for otg_drv\n", gpio);
743 gpio_direction_output(control_usb->otg_gpios->gpio, 0);
750 static int rk_usb_control_remove(struct platform_device *pdev)
755 static struct platform_driver rk_usb_control_driver = {
756 .probe = rk_usb_control_probe,
757 .remove = rk_usb_control_remove,
759 .name = "rk3126-usb-control",
760 .owner = THIS_MODULE,
761 .of_match_table = of_match_ptr(rk_usb_control_id_table),
767 static const struct of_device_id dwc_otg_control_usb_id_table[] = {
769 .compatible = "rockchip,rk3126-dwc-control-usb",
775 static int dwc_otg_control_usb_probe(struct platform_device *pdev)
777 struct clk *hclk_usb_peri;
781 dev_err(&pdev->dev, "unable to alloc memory for control usb\n");
786 hclk_usb_peri = devm_clk_get(&pdev->dev, "hclk_usb_peri");
787 if (IS_ERR(hclk_usb_peri)) {
788 dev_err(&pdev->dev, "Failed to get hclk_usb_peri\n");
793 control_usb->hclk_usb_peri = hclk_usb_peri;
794 clk_prepare_enable(hclk_usb_peri);
796 #ifdef CONFIG_USB20_OTG
797 if (usb20otg_get_status(USB_STATUS_BVABLID))
798 schedule_delayed_work(&control_usb->usb_charger_det_work,
802 ret = otg_irq_detect_init(pdev);
809 clk_disable_unprepare(hclk_usb_peri);
814 static int dwc_otg_control_usb_remove(struct platform_device *pdev)
816 clk_disable_unprepare(control_usb->hclk_usb_peri);
820 static struct platform_driver dwc_otg_control_usb_driver = {
821 .probe = dwc_otg_control_usb_probe,
822 .remove = dwc_otg_control_usb_remove,
824 .name = "rk3126-dwc-control-usb",
825 .owner = THIS_MODULE,
826 .of_match_table = of_match_ptr(dwc_otg_control_usb_id_table),
830 static int __init dwc_otg_control_usb_init(void)
834 retval |= platform_driver_register(&rk_usb_control_driver);
835 retval |= platform_driver_register(&dwc_otg_control_usb_driver);
839 subsys_initcall(dwc_otg_control_usb_init);
841 static void __exit dwc_otg_control_usb_exit(void)
843 platform_driver_unregister(&rk_usb_control_driver);
844 platform_driver_unregister(&dwc_otg_control_usb_driver);
847 module_exit(dwc_otg_control_usb_exit);
848 MODULE_ALIAS("platform: dwc_control_usb");
849 MODULE_AUTHOR("RockChip Inc.");
850 MODULE_DESCRIPTION("RockChip Control Module USB Driver");
851 MODULE_LICENSE("GPL v2");