1 // SPDX-License-Identifier: GPL-2.0
7  * compiled-in as well.  Otherwise, if either of the two stacks is
64 	[USB_SPEED_LOW] = "low-speed",
65 	[USB_SPEED_FULL] = "full-speed",
66 	[USB_SPEED_HIGH] = "high-speed",
68 	[USB_SPEED_SUPER] = "super-speed",
69 	[USB_SPEED_SUPER_PLUS] = "super-speed-plus",
72 const char *usb_speed_string(enum usb_device_speed speed)  in usb_speed_string()  argument
74 	if (speed < 0 || speed >= ARRAY_SIZE(speed_names))  in usb_speed_string()
75 		speed = USB_SPEED_UNKNOWN;  in usb_speed_string()
76 	return speed_names[speed];  in usb_speed_string()
85 	ret = device_property_read_string(dev, "maximum-speed", &maximum_speed);  in usb_get_maximum_speed()
146  * of_usb_get_dr_mode_by_phy - Get dual role mode for the controller device
149  * @arg0: phandle args[0] for phy's with #phy-cells >= 1, or -1 for
150  *        phys which do not have phy-cells
170 			if (arg0 == -1) {  in of_usb_get_dr_mode_by_phy()
176 							"phys", "#phy-cells",  in of_usb_get_dr_mode_by_phy()
202  * of_usb_host_tpl_support - to get if Targeted Peripheral List is supported
203  * for given targeted hosts (non-PC hosts)
210 	return of_property_read_bool(np, "tpl-support");  in of_usb_host_tpl_support()
215  * of_usb_update_otg_caps - to update usb otg capabilities according to
228 		return -EINVAL;  in of_usb_update_otg_caps()
230 	if (!of_property_read_u32(np, "otg-rev", &otg_rev)) {  in of_usb_update_otg_caps()
237 			if (otg_caps->otg_rev)  in of_usb_update_otg_caps()
238 				otg_caps->otg_rev = min_t(u16, otg_rev,  in of_usb_update_otg_caps()
239 							otg_caps->otg_rev);  in of_usb_update_otg_caps()
241 				otg_caps->otg_rev = otg_rev;  in of_usb_update_otg_caps()
244 			pr_err("%pOF: unsupported otg-rev: 0x%x\n",  in of_usb_update_otg_caps()
246 			return -EINVAL;  in of_usb_update_otg_caps()
250 		 * otg-rev is mandatory for otg properties, if not passed  in of_usb_update_otg_caps()
252 		 * Non-dt platform can set it afterwards.  in of_usb_update_otg_caps()
254 		otg_caps->otg_rev = 0;  in of_usb_update_otg_caps()
257 	if (of_property_read_bool(np, "hnp-disable"))  in of_usb_update_otg_caps()
258 		otg_caps->hnp_support = false;  in of_usb_update_otg_caps()
259 	if (of_property_read_bool(np, "srp-disable"))  in of_usb_update_otg_caps()
260 		otg_caps->srp_support = false;  in of_usb_update_otg_caps()
261 	if (of_property_read_bool(np, "adp-disable") ||  in of_usb_update_otg_caps()
262 				(otg_caps->otg_rev < 0x0200))  in of_usb_update_otg_caps()
263 		otg_caps->adp_support = false;  in of_usb_update_otg_caps()
270  * usb_of_get_companion_dev - Find the companion device
285 	node = of_parse_phandle(dev->of_node, "companion", 0);  in usb_of_get_companion_dev()
291 	return pdev ? &pdev->dev : NULL;  in usb_of_get_companion_dev()