78 lines
1.9 KiB
C
78 lines
1.9 KiB
C
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/**
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* host.c - DesignWare USB3 DRD Controller Host Glue
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*
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* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com
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*
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* Authors: Felipe Balbi <balbi@ti.com>,
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 of
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* the License as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/platform_device.h>
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#include <linux/usb/xhci_pdriver.h>
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#include "core.h"
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int dwc3_host_init(struct dwc3 *dwc)
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{
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struct platform_device *xhci;
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struct usb_xhci_pdata pdata;
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int ret;
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xhci = platform_device_alloc("xhci-hcd", PLATFORM_DEVID_AUTO);
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if (!xhci) {
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dev_err(dwc->dev, "couldn't allocate xHCI device\n");
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ret = -ENOMEM;
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goto err0;
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}
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dma_set_coherent_mask(&xhci->dev, dwc->dev->coherent_dma_mask);
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xhci->dev.parent = dwc->dev;
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xhci->dev.dma_mask = dwc->dev->dma_mask;
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xhci->dev.dma_parms = dwc->dev->dma_parms;
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dwc->xhci = xhci;
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ret = platform_device_add_resources(xhci, dwc->xhci_resources,
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DWC3_XHCI_RESOURCES_NUM);
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if (ret) {
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dev_err(dwc->dev, "couldn't add resources to xHCI device\n");
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goto err1;
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}
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memset(&pdata, 0, sizeof(pdata));
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#ifdef CONFIG_DWC3_HOST_USB3_LPM_ENABLE
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pdata.usb3_lpm_capable = 1;
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#endif
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ret = platform_device_add_data(xhci, &pdata, sizeof(pdata));
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if (ret) {
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dev_err(dwc->dev, "couldn't add platform data to xHCI device\n");
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goto err1;
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}
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/* Platform device gets added as part of state machine */
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return 0;
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err1:
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platform_device_put(xhci);
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err0:
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return ret;
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}
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void dwc3_host_exit(struct dwc3 *dwc)
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{
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if (!dwc->is_drd)
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platform_device_unregister(dwc->xhci);
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}
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