1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (C) 2018 Texas Instruments Incorporated - http://www.ti.com
4 * Written by Jean-Jacques Hiblot <jjhiblot@ti.com>
9 #include <dm/device-internal.h>
10 #include <linux/usb/gadget.h>
12 #define MAX_UDC_DEVICES 4
13 static struct udevice *dev_array[MAX_UDC_DEVICES];
14 int usb_gadget_initialize(int index)
17 struct udevice *dev = NULL;
19 if (index < 0 || index >= ARRAY_SIZE(dev_array))
23 ret = uclass_get_device(UCLASS_USB_GADGET_GENERIC, index, &dev);
25 pr_err("No USB device found\n");
28 dev_array[index] = dev;
32 int usb_gadget_release(int index)
34 #if CONFIG_IS_ENABLED(DM_DEVICE_REMOVE)
36 if (index < 0 || index >= ARRAY_SIZE(dev_array))
39 ret = device_remove(dev_array[index], DM_REMOVE_NORMAL);
41 dev_array[index] = NULL;
48 int usb_gadget_handle_interrupts(int index)
50 if (index < 0 || index >= ARRAY_SIZE(dev_array))
52 return dm_usb_gadget_handle_interrupts(dev_array[index]);
55 UCLASS_DRIVER(usb_gadget_generic) = {
56 .id = UCLASS_USB_GADGET_GENERIC,
57 .name = "usb_gadget_generic",