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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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