Lines Matching +full:usb +full:- +full:hub

1 // SPDX-License-Identifier: GPL-2.0-only
3  * API for creating and destroying USB onboard hub platform devices
15 #include <linux/usb.h>
16 #include <linux/usb/hcd.h>
17 #include <linux/usb/of.h>
18 #include <linux/usb/onboard_hub.h>
33  * onboard_hub_create_pdevs -- create platform devices for onboard USB hubs
34  * @parent_hub	: parent hub to scan for connected onboard hubs
35  * @pdev_list	: list of onboard hub platform devices owned by the parent hub
37  * Creates a platform device for each supported onboard hub that is connected to
38  * the given parent hub. The platform device is in charge of initializing the
39  * hub (enable regulators, take the hub out of reset, ...) and can optionally
40  * control whether the hub remains powered during system suspend or not.
43  * by the parent hub.
53  * platform device for each physical onboard hub, hence for root hubs the loop
54  * is only executed for the root hub of the primary HCD. Since the function
56  * connected to the root hub of the secondary HCD if needed.
59  * hub (the hub is a single physical device). To achieve this two measures are
61  * is called on behalf of the parent hub that is connected to the primary HCD
64  * created if the peer hub doesn't have one already.
69 	struct usb_hcd *hcd = bus_to_hcd(parent_hub->bus);  in onboard_hub_create_pdevs()
74 	if (!parent_hub->dev.of_node)  in onboard_hub_create_pdevs()
77 	if (!parent_hub->parent && !usb_hcd_is_primary_hcd(hcd))  in onboard_hub_create_pdevs()
80 	for (i = 1; i <= parent_hub->maxchild; i++) {  in onboard_hub_create_pdevs()
88 		npc = of_parse_phandle(np, "peer-hub", 0);  in onboard_hub_create_pdevs()
99 				put_device(&pdev->dev);  in onboard_hub_create_pdevs()
104 		pdev = of_platform_device_create(np, NULL, &parent_hub->dev);  in onboard_hub_create_pdevs()
106 			dev_err(&parent_hub->dev,  in onboard_hub_create_pdevs()
107 				"failed to create platform device for onboard hub '%pOF'\n", np);  in onboard_hub_create_pdevs()
113 			of_platform_device_destroy(&pdev->dev, NULL);  in onboard_hub_create_pdevs()
117 		pdle->pdev = pdev;  in onboard_hub_create_pdevs()
118 		list_add(&pdle->node, pdev_list);  in onboard_hub_create_pdevs()
127  * onboard_hub_destroy_pdevs -- free resources of onboard hub platform devices
128  * @pdev_list	: list of onboard hub platform devices
138 		list_del(&pdle->node);  in onboard_hub_destroy_pdevs()
139 		of_platform_device_destroy(&pdle->pdev->dev, NULL);  in onboard_hub_destroy_pdevs()