1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (c) 2014-2016, NVIDIA CORPORATION. All rights reserved.
6 #include <linux/delay.h>
8 #include <linux/mailbox_client.h>
9 #include <linux/module.h>
11 #include <linux/of_device.h>
12 #include <linux/phy/phy.h>
13 #include <linux/phy/tegra/xusb.h>
14 #include <linux/platform_device.h>
15 #include <linux/regulator/consumer.h>
16 #include <linux/reset.h>
17 #include <linux/slab.h>
18 #include <linux/workqueue.h>
20 #include <soc/tegra/fuse.h>
24 static struct phy *tegra_xusb_pad_of_xlate(struct device *dev,
25 struct of_phandle_args *args)
27 struct tegra_xusb_pad *pad = dev_get_drvdata(dev);
28 struct phy *phy = NULL;
31 if (args->args_count != 0)
32 return ERR_PTR(-EINVAL);
34 for (i = 0; i < pad->soc->num_lanes; i++) {
38 if (pad->lanes[i]->dev.of_node == args->np) {
45 phy = ERR_PTR(-ENODEV);
50 static const struct of_device_id tegra_xusb_padctl_of_match[] = {
51 #if defined(CONFIG_ARCH_TEGRA_124_SOC) || defined(CONFIG_ARCH_TEGRA_132_SOC)
53 .compatible = "nvidia,tegra124-xusb-padctl",
54 .data = &tegra124_xusb_padctl_soc,
57 #if defined(CONFIG_ARCH_TEGRA_210_SOC)
59 .compatible = "nvidia,tegra210-xusb-padctl",
60 .data = &tegra210_xusb_padctl_soc,
63 #if defined(CONFIG_ARCH_TEGRA_186_SOC)
65 .compatible = "nvidia,tegra186-xusb-padctl",
66 .data = &tegra186_xusb_padctl_soc,
71 MODULE_DEVICE_TABLE(of, tegra_xusb_padctl_of_match);
73 static struct device_node *
74 tegra_xusb_find_pad_node(struct tegra_xusb_padctl *padctl, const char *name)
76 struct device_node *pads, *np;
78 pads = of_get_child_by_name(padctl->dev->of_node, "pads");
82 np = of_get_child_by_name(pads, name);
88 static struct device_node *
89 tegra_xusb_pad_find_phy_node(struct tegra_xusb_pad *pad, unsigned int index)
91 struct device_node *np, *lanes;
93 lanes = of_get_child_by_name(pad->dev.of_node, "lanes");
97 np = of_get_child_by_name(lanes, pad->soc->lanes[index].name);
103 int tegra_xusb_lane_parse_dt(struct tegra_xusb_lane *lane,
104 struct device_node *np)
106 struct device *dev = &lane->pad->dev;
107 const char *function;
110 err = of_property_read_string(np, "nvidia,function", &function);
114 err = match_string(lane->soc->funcs, lane->soc->num_funcs, function);
116 dev_err(dev, "invalid function \"%s\" for lane \"%pOFn\"\n",
121 lane->function = err;
126 static void tegra_xusb_lane_destroy(struct phy *phy)
129 struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
131 lane->pad->ops->remove(lane);
136 static void tegra_xusb_pad_release(struct device *dev)
138 struct tegra_xusb_pad *pad = to_tegra_xusb_pad(dev);
140 pad->soc->ops->remove(pad);
143 static struct device_type tegra_xusb_pad_type = {
144 .release = tegra_xusb_pad_release,
147 int tegra_xusb_pad_init(struct tegra_xusb_pad *pad,
148 struct tegra_xusb_padctl *padctl,
149 struct device_node *np)
153 device_initialize(&pad->dev);
154 INIT_LIST_HEAD(&pad->list);
155 pad->dev.parent = padctl->dev;
156 pad->dev.type = &tegra_xusb_pad_type;
157 pad->dev.of_node = np;
158 pad->padctl = padctl;
160 err = dev_set_name(&pad->dev, "%s", pad->soc->name);
164 err = device_add(&pad->dev);
171 device_unregister(&pad->dev);
175 int tegra_xusb_pad_register(struct tegra_xusb_pad *pad,
176 const struct phy_ops *ops)
178 struct device_node *children;
183 children = of_get_child_by_name(pad->dev.of_node, "lanes");
187 pad->lanes = devm_kcalloc(&pad->dev, pad->soc->num_lanes, sizeof(lane),
190 of_node_put(children);
194 for (i = 0; i < pad->soc->num_lanes; i++) {
195 struct device_node *np = tegra_xusb_pad_find_phy_node(pad, i);
196 struct tegra_xusb_lane *lane;
198 /* skip disabled lanes */
199 if (!np || !of_device_is_available(np)) {
204 pad->lanes[i] = phy_create(&pad->dev, np, ops);
205 if (IS_ERR(pad->lanes[i])) {
206 err = PTR_ERR(pad->lanes[i]);
211 lane = pad->ops->probe(pad, np, i);
213 phy_destroy(pad->lanes[i]);
218 list_add_tail(&lane->list, &pad->padctl->lanes);
219 phy_set_drvdata(pad->lanes[i], lane);
222 pad->provider = of_phy_provider_register_full(&pad->dev, children,
223 tegra_xusb_pad_of_xlate);
224 if (IS_ERR(pad->provider)) {
225 err = PTR_ERR(pad->provider);
233 tegra_xusb_lane_destroy(pad->lanes[i]);
235 of_node_put(children);
240 void tegra_xusb_pad_unregister(struct tegra_xusb_pad *pad)
242 unsigned int i = pad->soc->num_lanes;
244 of_phy_provider_unregister(pad->provider);
247 tegra_xusb_lane_destroy(pad->lanes[i]);
249 device_unregister(&pad->dev);
252 static struct tegra_xusb_pad *
253 tegra_xusb_pad_create(struct tegra_xusb_padctl *padctl,
254 const struct tegra_xusb_pad_soc *soc)
256 struct tegra_xusb_pad *pad;
257 struct device_node *np;
260 np = tegra_xusb_find_pad_node(padctl, soc->name);
261 if (!np || !of_device_is_available(np))
264 pad = soc->ops->probe(padctl, soc, np);
267 dev_err(padctl->dev, "failed to create pad %s: %d\n",
272 /* XXX move this into ->probe() to avoid string comparison */
273 if (strcmp(soc->name, "pcie") == 0)
276 if (strcmp(soc->name, "sata") == 0)
279 if (strcmp(soc->name, "usb2") == 0)
282 if (strcmp(soc->name, "ulpi") == 0)
285 if (strcmp(soc->name, "hsic") == 0)
291 static void __tegra_xusb_remove_pads(struct tegra_xusb_padctl *padctl)
293 struct tegra_xusb_pad *pad, *tmp;
295 list_for_each_entry_safe_reverse(pad, tmp, &padctl->pads, list) {
296 list_del(&pad->list);
297 tegra_xusb_pad_unregister(pad);
301 static void tegra_xusb_remove_pads(struct tegra_xusb_padctl *padctl)
303 mutex_lock(&padctl->lock);
304 __tegra_xusb_remove_pads(padctl);
305 mutex_unlock(&padctl->lock);
308 static void tegra_xusb_lane_program(struct tegra_xusb_lane *lane)
310 struct tegra_xusb_padctl *padctl = lane->pad->padctl;
311 const struct tegra_xusb_lane_soc *soc = lane->soc;
314 /* skip single function lanes */
315 if (soc->num_funcs < 2)
318 /* choose function */
319 value = padctl_readl(padctl, soc->offset);
320 value &= ~(soc->mask << soc->shift);
321 value |= lane->function << soc->shift;
322 padctl_writel(padctl, value, soc->offset);
325 static void tegra_xusb_pad_program(struct tegra_xusb_pad *pad)
329 for (i = 0; i < pad->soc->num_lanes; i++) {
330 struct tegra_xusb_lane *lane;
333 lane = phy_get_drvdata(pad->lanes[i]);
334 tegra_xusb_lane_program(lane);
339 static int tegra_xusb_setup_pads(struct tegra_xusb_padctl *padctl)
341 struct tegra_xusb_pad *pad;
344 mutex_lock(&padctl->lock);
346 for (i = 0; i < padctl->soc->num_pads; i++) {
347 const struct tegra_xusb_pad_soc *soc = padctl->soc->pads[i];
350 pad = tegra_xusb_pad_create(padctl, soc);
353 dev_err(padctl->dev, "failed to create pad %s: %d\n",
355 __tegra_xusb_remove_pads(padctl);
356 mutex_unlock(&padctl->lock);
363 list_add_tail(&pad->list, &padctl->pads);
366 list_for_each_entry(pad, &padctl->pads, list)
367 tegra_xusb_pad_program(pad);
369 mutex_unlock(&padctl->lock);
373 static bool tegra_xusb_lane_check(struct tegra_xusb_lane *lane,
374 const char *function)
376 const char *func = lane->soc->funcs[lane->function];
378 return strcmp(function, func) == 0;
381 struct tegra_xusb_lane *tegra_xusb_find_lane(struct tegra_xusb_padctl *padctl,
385 struct tegra_xusb_lane *lane, *hit = ERR_PTR(-ENODEV);
388 name = kasprintf(GFP_KERNEL, "%s-%u", type, index);
390 return ERR_PTR(-ENOMEM);
392 list_for_each_entry(lane, &padctl->lanes, list) {
393 if (strcmp(lane->soc->name, name) == 0) {
403 struct tegra_xusb_lane *
404 tegra_xusb_port_find_lane(struct tegra_xusb_port *port,
405 const struct tegra_xusb_lane_map *map,
406 const char *function)
408 struct tegra_xusb_lane *lane, *match = ERR_PTR(-ENODEV);
410 for (; map->type; map++) {
411 if (port->index != map->port)
414 lane = tegra_xusb_find_lane(port->padctl, map->type,
419 if (!tegra_xusb_lane_check(lane, function))
423 dev_err(&port->dev, "conflicting match: %s-%u / %s\n",
424 map->type, map->index, match->soc->name);
432 static struct device_node *
433 tegra_xusb_find_port_node(struct tegra_xusb_padctl *padctl, const char *type,
436 struct device_node *ports, *np;
439 ports = of_get_child_by_name(padctl->dev->of_node, "ports");
443 name = kasprintf(GFP_KERNEL, "%s-%u", type, index);
446 return ERR_PTR(-ENOMEM);
448 np = of_get_child_by_name(ports, name);
455 struct tegra_xusb_port *
456 tegra_xusb_find_port(struct tegra_xusb_padctl *padctl, const char *type,
459 struct tegra_xusb_port *port;
460 struct device_node *np;
462 np = tegra_xusb_find_port_node(padctl, type, index);
466 list_for_each_entry(port, &padctl->ports, list) {
467 if (np == port->dev.of_node) {
478 struct tegra_xusb_usb2_port *
479 tegra_xusb_find_usb2_port(struct tegra_xusb_padctl *padctl, unsigned int index)
481 struct tegra_xusb_port *port;
483 port = tegra_xusb_find_port(padctl, "usb2", index);
485 return to_usb2_port(port);
490 struct tegra_xusb_usb3_port *
491 tegra_xusb_find_usb3_port(struct tegra_xusb_padctl *padctl, unsigned int index)
493 struct tegra_xusb_port *port;
495 port = tegra_xusb_find_port(padctl, "usb3", index);
497 return to_usb3_port(port);
502 static void tegra_xusb_port_release(struct device *dev)
506 static struct device_type tegra_xusb_port_type = {
507 .release = tegra_xusb_port_release,
510 static int tegra_xusb_port_init(struct tegra_xusb_port *port,
511 struct tegra_xusb_padctl *padctl,
512 struct device_node *np,
518 INIT_LIST_HEAD(&port->list);
519 port->padctl = padctl;
522 device_initialize(&port->dev);
523 port->dev.type = &tegra_xusb_port_type;
524 port->dev.of_node = of_node_get(np);
525 port->dev.parent = padctl->dev;
527 err = dev_set_name(&port->dev, "%s-%u", name, index);
531 err = device_add(&port->dev);
538 device_unregister(&port->dev);
542 static void tegra_xusb_port_unregister(struct tegra_xusb_port *port)
544 device_unregister(&port->dev);
547 static const char *const modes[] = {
548 [USB_DR_MODE_UNKNOWN] = "",
549 [USB_DR_MODE_HOST] = "host",
550 [USB_DR_MODE_PERIPHERAL] = "peripheral",
551 [USB_DR_MODE_OTG] = "otg",
554 static int tegra_xusb_usb2_port_parse_dt(struct tegra_xusb_usb2_port *usb2)
556 struct tegra_xusb_port *port = &usb2->base;
557 struct device_node *np = port->dev.of_node;
560 usb2->internal = of_property_read_bool(np, "nvidia,internal");
562 if (!of_property_read_string(np, "mode", &mode)) {
563 int err = match_string(modes, ARRAY_SIZE(modes), mode);
565 dev_err(&port->dev, "invalid value %s for \"mode\"\n",
567 usb2->mode = USB_DR_MODE_UNKNOWN;
572 usb2->mode = USB_DR_MODE_HOST;
575 usb2->supply = devm_regulator_get(&port->dev, "vbus");
576 return PTR_ERR_OR_ZERO(usb2->supply);
579 static int tegra_xusb_add_usb2_port(struct tegra_xusb_padctl *padctl,
582 struct tegra_xusb_usb2_port *usb2;
583 struct device_node *np;
587 * USB2 ports don't require additional properties, but if the port is
588 * marked as disabled there is no reason to register it.
590 np = tegra_xusb_find_port_node(padctl, "usb2", index);
591 if (!np || !of_device_is_available(np))
594 usb2 = devm_kzalloc(padctl->dev, sizeof(*usb2), GFP_KERNEL);
600 err = tegra_xusb_port_init(&usb2->base, padctl, np, "usb2", index);
604 usb2->base.ops = padctl->soc->ports.usb2.ops;
606 usb2->base.lane = usb2->base.ops->map(&usb2->base);
607 if (IS_ERR(usb2->base.lane)) {
608 err = PTR_ERR(usb2->base.lane);
612 err = tegra_xusb_usb2_port_parse_dt(usb2);
614 tegra_xusb_port_unregister(&usb2->base);
618 list_add_tail(&usb2->base.list, &padctl->ports);
625 static int tegra_xusb_ulpi_port_parse_dt(struct tegra_xusb_ulpi_port *ulpi)
627 struct tegra_xusb_port *port = &ulpi->base;
628 struct device_node *np = port->dev.of_node;
630 ulpi->internal = of_property_read_bool(np, "nvidia,internal");
635 static int tegra_xusb_add_ulpi_port(struct tegra_xusb_padctl *padctl,
638 struct tegra_xusb_ulpi_port *ulpi;
639 struct device_node *np;
642 np = tegra_xusb_find_port_node(padctl, "ulpi", index);
643 if (!np || !of_device_is_available(np))
646 ulpi = devm_kzalloc(padctl->dev, sizeof(*ulpi), GFP_KERNEL);
652 err = tegra_xusb_port_init(&ulpi->base, padctl, np, "ulpi", index);
656 ulpi->base.ops = padctl->soc->ports.ulpi.ops;
658 ulpi->base.lane = ulpi->base.ops->map(&ulpi->base);
659 if (IS_ERR(ulpi->base.lane)) {
660 err = PTR_ERR(ulpi->base.lane);
664 err = tegra_xusb_ulpi_port_parse_dt(ulpi);
666 tegra_xusb_port_unregister(&ulpi->base);
670 list_add_tail(&ulpi->base.list, &padctl->ports);
677 static int tegra_xusb_hsic_port_parse_dt(struct tegra_xusb_hsic_port *hsic)
683 static int tegra_xusb_add_hsic_port(struct tegra_xusb_padctl *padctl,
686 struct tegra_xusb_hsic_port *hsic;
687 struct device_node *np;
690 np = tegra_xusb_find_port_node(padctl, "hsic", index);
691 if (!np || !of_device_is_available(np))
694 hsic = devm_kzalloc(padctl->dev, sizeof(*hsic), GFP_KERNEL);
700 err = tegra_xusb_port_init(&hsic->base, padctl, np, "hsic", index);
704 hsic->base.ops = padctl->soc->ports.hsic.ops;
706 hsic->base.lane = hsic->base.ops->map(&hsic->base);
707 if (IS_ERR(hsic->base.lane)) {
708 err = PTR_ERR(hsic->base.lane);
712 err = tegra_xusb_hsic_port_parse_dt(hsic);
714 tegra_xusb_port_unregister(&hsic->base);
718 list_add_tail(&hsic->base.list, &padctl->ports);
725 static int tegra_xusb_usb3_port_parse_dt(struct tegra_xusb_usb3_port *usb3)
727 struct tegra_xusb_port *port = &usb3->base;
728 struct device_node *np = port->dev.of_node;
732 err = of_property_read_u32(np, "nvidia,usb2-companion", &value);
734 dev_err(&port->dev, "failed to read port: %d\n", err);
740 usb3->internal = of_property_read_bool(np, "nvidia,internal");
742 usb3->supply = devm_regulator_get(&port->dev, "vbus");
743 return PTR_ERR_OR_ZERO(usb3->supply);
746 static int tegra_xusb_add_usb3_port(struct tegra_xusb_padctl *padctl,
749 struct tegra_xusb_usb3_port *usb3;
750 struct device_node *np;
754 * If there is no supplemental configuration in the device tree the
755 * port is unusable. But it is valid to configure only a single port,
756 * hence return 0 instead of an error to allow ports to be optional.
758 np = tegra_xusb_find_port_node(padctl, "usb3", index);
759 if (!np || !of_device_is_available(np))
762 usb3 = devm_kzalloc(padctl->dev, sizeof(*usb3), GFP_KERNEL);
768 err = tegra_xusb_port_init(&usb3->base, padctl, np, "usb3", index);
772 usb3->base.ops = padctl->soc->ports.usb3.ops;
774 usb3->base.lane = usb3->base.ops->map(&usb3->base);
775 if (IS_ERR(usb3->base.lane)) {
776 err = PTR_ERR(usb3->base.lane);
780 err = tegra_xusb_usb3_port_parse_dt(usb3);
782 tegra_xusb_port_unregister(&usb3->base);
786 list_add_tail(&usb3->base.list, &padctl->ports);
793 static void __tegra_xusb_remove_ports(struct tegra_xusb_padctl *padctl)
795 struct tegra_xusb_port *port, *tmp;
797 list_for_each_entry_safe_reverse(port, tmp, &padctl->ports, list) {
798 list_del(&port->list);
799 tegra_xusb_port_unregister(port);
803 static int tegra_xusb_setup_ports(struct tegra_xusb_padctl *padctl)
805 struct tegra_xusb_port *port;
809 mutex_lock(&padctl->lock);
811 for (i = 0; i < padctl->soc->ports.usb2.count; i++) {
812 err = tegra_xusb_add_usb2_port(padctl, i);
817 for (i = 0; i < padctl->soc->ports.ulpi.count; i++) {
818 err = tegra_xusb_add_ulpi_port(padctl, i);
823 for (i = 0; i < padctl->soc->ports.hsic.count; i++) {
824 err = tegra_xusb_add_hsic_port(padctl, i);
829 for (i = 0; i < padctl->soc->ports.usb3.count; i++) {
830 err = tegra_xusb_add_usb3_port(padctl, i);
835 list_for_each_entry(port, &padctl->ports, list) {
836 err = port->ops->enable(port);
838 dev_err(padctl->dev, "failed to enable port %s: %d\n",
839 dev_name(&port->dev), err);
845 __tegra_xusb_remove_ports(padctl);
847 mutex_unlock(&padctl->lock);
851 static void tegra_xusb_remove_ports(struct tegra_xusb_padctl *padctl)
853 mutex_lock(&padctl->lock);
854 __tegra_xusb_remove_ports(padctl);
855 mutex_unlock(&padctl->lock);
858 static int tegra_xusb_padctl_probe(struct platform_device *pdev)
860 struct device_node *np = pdev->dev.of_node;
861 const struct tegra_xusb_padctl_soc *soc;
862 struct tegra_xusb_padctl *padctl;
863 const struct of_device_id *match;
864 struct resource *res;
868 /* for backwards compatibility with old device trees */
869 np = of_get_child_by_name(np, "pads");
871 dev_warn(&pdev->dev, "deprecated DT, using legacy driver\n");
872 return tegra_xusb_padctl_legacy_probe(pdev);
877 match = of_match_node(tegra_xusb_padctl_of_match, pdev->dev.of_node);
880 padctl = soc->ops->probe(&pdev->dev, soc);
882 return PTR_ERR(padctl);
884 platform_set_drvdata(pdev, padctl);
885 INIT_LIST_HEAD(&padctl->ports);
886 INIT_LIST_HEAD(&padctl->lanes);
887 INIT_LIST_HEAD(&padctl->pads);
888 mutex_init(&padctl->lock);
890 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
891 padctl->regs = devm_ioremap_resource(&pdev->dev, res);
892 if (IS_ERR(padctl->regs)) {
893 err = PTR_ERR(padctl->regs);
897 padctl->rst = devm_reset_control_get(&pdev->dev, NULL);
898 if (IS_ERR(padctl->rst)) {
899 err = PTR_ERR(padctl->rst);
903 padctl->supplies = devm_kcalloc(&pdev->dev, padctl->soc->num_supplies,
904 sizeof(*padctl->supplies), GFP_KERNEL);
905 if (!padctl->supplies) {
910 for (i = 0; i < padctl->soc->num_supplies; i++)
911 padctl->supplies[i].supply = padctl->soc->supply_names[i];
913 err = devm_regulator_bulk_get(&pdev->dev, padctl->soc->num_supplies,
916 dev_err(&pdev->dev, "failed to get regulators: %d\n", err);
920 err = reset_control_deassert(padctl->rst);
924 err = regulator_bulk_enable(padctl->soc->num_supplies,
927 dev_err(&pdev->dev, "failed to enable supplies: %d\n", err);
931 err = tegra_xusb_setup_pads(padctl);
933 dev_err(&pdev->dev, "failed to setup pads: %d\n", err);
937 err = tegra_xusb_setup_ports(padctl);
939 dev_err(&pdev->dev, "failed to setup XUSB ports: %d\n", err);
946 tegra_xusb_remove_pads(padctl);
948 regulator_bulk_disable(padctl->soc->num_supplies, padctl->supplies);
950 reset_control_assert(padctl->rst);
952 soc->ops->remove(padctl);
956 static int tegra_xusb_padctl_remove(struct platform_device *pdev)
958 struct tegra_xusb_padctl *padctl = platform_get_drvdata(pdev);
961 tegra_xusb_remove_ports(padctl);
962 tegra_xusb_remove_pads(padctl);
964 err = regulator_bulk_disable(padctl->soc->num_supplies,
967 dev_err(&pdev->dev, "failed to disable supplies: %d\n", err);
969 err = reset_control_assert(padctl->rst);
971 dev_err(&pdev->dev, "failed to assert reset: %d\n", err);
973 padctl->soc->ops->remove(padctl);
978 static struct platform_driver tegra_xusb_padctl_driver = {
980 .name = "tegra-xusb-padctl",
981 .of_match_table = tegra_xusb_padctl_of_match,
983 .probe = tegra_xusb_padctl_probe,
984 .remove = tegra_xusb_padctl_remove,
986 module_platform_driver(tegra_xusb_padctl_driver);
988 struct tegra_xusb_padctl *tegra_xusb_padctl_get(struct device *dev)
990 struct tegra_xusb_padctl *padctl;
991 struct platform_device *pdev;
992 struct device_node *np;
994 np = of_parse_phandle(dev->of_node, "nvidia,xusb-padctl", 0);
996 return ERR_PTR(-EINVAL);
999 * This is slightly ugly. A better implementation would be to keep a
1000 * registry of pad controllers, but since there will almost certainly
1001 * only ever be one per SoC that would be a little overkill.
1003 pdev = of_find_device_by_node(np);
1006 return ERR_PTR(-ENODEV);
1011 padctl = platform_get_drvdata(pdev);
1013 put_device(&pdev->dev);
1014 return ERR_PTR(-EPROBE_DEFER);
1019 EXPORT_SYMBOL_GPL(tegra_xusb_padctl_get);
1021 void tegra_xusb_padctl_put(struct tegra_xusb_padctl *padctl)
1024 put_device(padctl->dev);
1026 EXPORT_SYMBOL_GPL(tegra_xusb_padctl_put);
1028 int tegra_xusb_padctl_usb3_save_context(struct tegra_xusb_padctl *padctl,
1031 if (padctl->soc->ops->usb3_save_context)
1032 return padctl->soc->ops->usb3_save_context(padctl, port);
1036 EXPORT_SYMBOL_GPL(tegra_xusb_padctl_usb3_save_context);
1038 int tegra_xusb_padctl_hsic_set_idle(struct tegra_xusb_padctl *padctl,
1039 unsigned int port, bool idle)
1041 if (padctl->soc->ops->hsic_set_idle)
1042 return padctl->soc->ops->hsic_set_idle(padctl, port, idle);
1046 EXPORT_SYMBOL_GPL(tegra_xusb_padctl_hsic_set_idle);
1048 int tegra_xusb_padctl_usb3_set_lfps_detect(struct tegra_xusb_padctl *padctl,
1049 unsigned int port, bool enable)
1051 if (padctl->soc->ops->usb3_set_lfps_detect)
1052 return padctl->soc->ops->usb3_set_lfps_detect(padctl, port,
1057 EXPORT_SYMBOL_GPL(tegra_xusb_padctl_usb3_set_lfps_detect);
1059 MODULE_AUTHOR("Thierry Reding <treding@nvidia.com>");
1060 MODULE_DESCRIPTION("Tegra XUSB Pad Controller driver");
1061 MODULE_LICENSE("GPL v2");