mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-27 14:43:58 +08:00
51249dca62
This fix prevents a problem with dwc3 and host mode where we were requesting the entire memory region in dwc3/core.c, thus preventing xhci-plat from ever ioremapping its own address space. Signed-off-by: Ido Shayevitz <idos@codeaurora.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
88 lines
2.8 KiB
C
88 lines
2.8 KiB
C
/**
|
|
* host.c - DesignWare USB3 DRD Controller Host Glue
|
|
*
|
|
* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com
|
|
*
|
|
* Authors: Felipe Balbi <balbi@ti.com>,
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions, and the following disclaimer,
|
|
* without modification.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. The names of the above-listed copyright holders may not be used
|
|
* to endorse or promote products derived from this software without
|
|
* specific prior written permission.
|
|
*
|
|
* ALTERNATIVELY, this software may be distributed under the terms of the
|
|
* GNU General Public License ("GPL") version 2, as published by the Free
|
|
* Software Foundation.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
|
|
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
|
|
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
|
|
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
|
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
|
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
|
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
|
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
|
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <linux/platform_device.h>
|
|
|
|
#include "core.h"
|
|
|
|
int dwc3_host_init(struct dwc3 *dwc)
|
|
{
|
|
struct platform_device *xhci;
|
|
int ret;
|
|
|
|
xhci = platform_device_alloc("xhci-hcd", -1);
|
|
if (!xhci) {
|
|
dev_err(dwc->dev, "couldn't allocate xHCI device\n");
|
|
ret = -ENOMEM;
|
|
goto err0;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
ret = platform_device_add(xhci);
|
|
if (ret) {
|
|
dev_err(dwc->dev, "failed to register xHCI device\n");
|
|
goto err1;
|
|
}
|
|
|
|
return 0;
|
|
|
|
err1:
|
|
platform_device_put(xhci);
|
|
|
|
err0:
|
|
return ret;
|
|
}
|
|
|
|
void dwc3_host_exit(struct dwc3 *dwc)
|
|
{
|
|
platform_device_unregister(dwc->xhci);
|
|
}
|