usb/misc/onboard_usb_hub_pdevs.c

1 // SPDX-License-Identifier: GPL-2.0-only
33  * onboard_hub_create_pdevs -- create platform devices for onboard USB hubs
39  * hub (enable regulators, take the hub out of reset, ...) and can optionally
45  * Some background about the logic in this function, which can be a bit hard
49  * HCD. The primary and secondary HCD are usually represented by a single DT
50  * node. That means the root hubs of the primary and secondary HCD share the
51  * same device tree node (the HCD node). As a result this function can be called
56  * connected to the root hub of the secondary HCD if needed.
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()
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
138 		list_del(&pdle->node);  in onboard_hub_destroy_pdevs()
139 		of_platform_device_destroy(&pdle->pdev->dev, NULL);  in onboard_hub_destroy_pdevs()