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- // SPDX-License-Identifier: GPL-2.0
- /*
- * Cadence USBSS DRD Driver - host side
- *
- * Copyright (C) 2018-2019 Cadence Design Systems.
- * Copyright (C) 2017-2018 NXP
- *
- * Authors: Peter Chen <peter.chen@nxp.com>
- * Pawel Laszczak <pawell@cadence.com>
- */
- #include <dm.h>
- #include <dm/devres.h>
- #include <linux/compat.h>
- #include <usb.h>
- #include <usb/xhci.h>
- #include "core.h"
- #include "drd.h"
- static int __cdns3_host_init(struct cdns3 *cdns)
- {
- struct xhci_hcor *hcor;
- struct xhci_hccr *hccr;
- cdns3_drd_switch_host(cdns, 1);
- hccr = (struct xhci_hccr *)cdns->xhci_regs;
- hcor = (struct xhci_hcor *)(cdns->xhci_regs +
- HC_LENGTH(xhci_readl(&(hccr)->cr_capbase)));
- return xhci_register(cdns->dev, hccr, hcor);
- }
- static void cdns3_host_exit(struct cdns3 *cdns)
- {
- xhci_deregister(cdns->dev);
- cdns3_drd_switch_host(cdns, 0);
- }
- int cdns3_host_init(struct cdns3 *cdns)
- {
- struct cdns3_role_driver *rdrv;
- rdrv = devm_kzalloc(cdns->dev, sizeof(*rdrv), GFP_KERNEL);
- if (!rdrv)
- return -ENOMEM;
- rdrv->start = __cdns3_host_init;
- rdrv->stop = cdns3_host_exit;
- rdrv->state = CDNS3_ROLE_STATE_INACTIVE;
- rdrv->name = "host";
- cdns->roles[USB_ROLE_HOST] = rdrv;
- return 0;
- }
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