Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / usb / dwc3 / host.c

diff --git a/kernel/drivers/usb/dwc3/host.c b/kernel/drivers/usb/dwc3/host.c
new file mode 100644 (file)
index 0000000..c679f63
--- /dev/null
+++ b/kernel/drivers/usb/dwc3/host.c
@@ -0,0 +1,89 @@
+/**
+ * host.c - DesignWare USB3 DRD Controller Host Glue
+ *
+ * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com
+ *
+ * Authors: Felipe Balbi <balbi@ti.com>,
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2  of
+ * the License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/platform_device.h>
+#include <linux/usb/xhci_pdriver.h>
+
+#include "core.h"
+
+int dwc3_host_init(struct dwc3 *dwc)
+{
+       struct platform_device  *xhci;
+       struct usb_xhci_pdata   pdata;
+       int                     ret;
+
+       xhci = platform_device_alloc("xhci-hcd", PLATFORM_DEVID_AUTO);
+       if (!xhci) {
+               dev_err(dwc->dev, "couldn't allocate xHCI device\n");
+               return -ENOMEM;
+       }
+
+       dma_set_coherent_mask(&xhci->dev, dwc->dev->coherent_dma_mask);
+
+       xhci->dev.parent        = dwc->dev;
+       xhci->dev.dma_mask      = dwc->dev->dma_mask;
+       xhci->dev.dma_parms     = dwc->dev->dma_parms;
+
+       dwc->xhci = xhci;
+
+       ret = platform_device_add_resources(xhci, dwc->xhci_resources,
+                                               DWC3_XHCI_RESOURCES_NUM);
+       if (ret) {
+               dev_err(dwc->dev, "couldn't add resources to xHCI device\n");
+               goto err1;
+       }
+
+       memset(&pdata, 0, sizeof(pdata));
+
+       pdata.usb3_lpm_capable = dwc->usb3_lpm_capable;
+
+       ret = platform_device_add_data(xhci, &pdata, sizeof(pdata));
+       if (ret) {
+               dev_err(dwc->dev, "couldn't add platform data to xHCI device\n");
+               goto err1;
+       }
+
+       phy_create_lookup(dwc->usb2_generic_phy, "usb2-phy",
+                         dev_name(&xhci->dev));
+       phy_create_lookup(dwc->usb3_generic_phy, "usb3-phy",
+                         dev_name(&xhci->dev));
+
+       ret = platform_device_add(xhci);
+       if (ret) {
+               dev_err(dwc->dev, "failed to register xHCI device\n");
+               goto err2;
+       }
+
+       return 0;
+err2:
+       phy_remove_lookup(dwc->usb2_generic_phy, "usb2-phy",
+                         dev_name(&xhci->dev));
+       phy_remove_lookup(dwc->usb3_generic_phy, "usb3-phy",
+                         dev_name(&xhci->dev));
+err1:
+       platform_device_put(xhci);
+       return ret;
+}
+
+void dwc3_host_exit(struct dwc3 *dwc)
+{
+       phy_remove_lookup(dwc->usb2_generic_phy, "usb2-phy",
+                         dev_name(&dwc->xhci->dev));
+       phy_remove_lookup(dwc->usb3_generic_phy, "usb3-phy",
+                         dev_name(&dwc->xhci->dev));
+       platform_device_unregister(dwc->xhci);
+}