[deliverable/linux.git] / drivers / usb / dwc3 / host.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>,
 *
 * 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);
}
Commit	Line	Data
d07e8819 FB	1	/**
	2	* host.c - DesignWare USB3 DRD Controller Host Glue
	3	*
	4	* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com
	5	*
	6	* Authors: Felipe Balbi <balbi@ti.com>,
	7	*
5945f789 FB	8	* This program is free software: you can redistribute it and/or modify
	9	* it under the terms of the GNU General Public License version 2 of
	10	* the License as published by the Free Software Foundation.
d07e8819	11	*
5945f789 FB	12	* This program is distributed in the hope that it will be useful,
	13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	* GNU General Public License for more details.
d07e8819 FB	16	*/
d07e8819 FB	17
d07e8819	18	#include <linux/platform_device.h>
b2f463e1	19	#include <linux/usb/xhci_pdriver.h>
d07e8819 FB	20
d07e8819 FB	21	#include "core.h"
d07e8819	22
d07e8819 FB	23	int dwc3_host_init(struct dwc3 *dwc)
	24	{
	25	struct platform_device *xhci;
b2f463e1	26	struct usb_xhci_pdata pdata;
d07e8819 FB	27	int ret;
d07e8819 FB	28
52758bcb	29	xhci = platform_device_alloc("xhci-hcd", PLATFORM_DEVID_AUTO);
d07e8819 FB	30	if (!xhci) {
d07e8819 FB	31	dev_err(dwc->dev, "couldn't allocate xHCI device\n");
08f871a3	32	return -ENOMEM;
d07e8819 FB	33	}
	34
	35	dma_set_coherent_mask(&xhci->dev, dwc->dev->coherent_dma_mask);
	36
	37	xhci->dev.parent = dwc->dev;
	38	xhci->dev.dma_mask = dwc->dev->dma_mask;
	39	xhci->dev.dma_parms = dwc->dev->dma_parms;
	40
	41	dwc->xhci = xhci;
	42
51249dca IS	43	ret = platform_device_add_resources(xhci, dwc->xhci_resources,
51249dca IS	44	DWC3_XHCI_RESOURCES_NUM);
d07e8819 FB	45	if (ret) {
	46	dev_err(dwc->dev, "couldn't add resources to xHCI device\n");
	47	goto err1;
	48	}
	49
b2f463e1 PA	50	memset(&pdata, 0, sizeof(pdata));
b2f463e1 PA	51
eac68e8f	52	pdata.usb3_lpm_capable = dwc->usb3_lpm_capable;
b2f463e1 PA	53
	54	ret = platform_device_add_data(xhci, &pdata, sizeof(pdata));
	55	if (ret) {
	56	dev_err(dwc->dev, "couldn't add platform data to xHCI device\n");
	57	goto err1;
	58	}
	59
08f871a3 HK	60	phy_create_lookup(dwc->usb2_generic_phy, "usb2-phy",
	61	dev_name(&xhci->dev));
	62	phy_create_lookup(dwc->usb3_generic_phy, "usb3-phy",
	63	dev_name(&xhci->dev));
	64
d07e8819 FB	65	ret = platform_device_add(xhci);
	66	if (ret) {
	67	dev_err(dwc->dev, "failed to register xHCI device\n");
08f871a3	68	goto err2;
d07e8819 FB	69	}
	70
	71	return 0;
08f871a3 HK	72	err2:
	73	phy_remove_lookup(dwc->usb2_generic_phy, "usb2-phy",
	74	dev_name(&xhci->dev));
	75	phy_remove_lookup(dwc->usb3_generic_phy, "usb3-phy",
	76	dev_name(&xhci->dev));
d07e8819 FB	77	err1:
d07e8819 FB	78	platform_device_put(xhci);
d07e8819 FB	79	return ret;
	80	}
	81
	82	void dwc3_host_exit(struct dwc3 *dwc)
	83	{
08f871a3 HK	84	phy_remove_lookup(dwc->usb2_generic_phy, "usb2-phy",
	85	dev_name(&dwc->xhci->dev));
	86	phy_remove_lookup(dwc->usb3_generic_phy, "usb3-phy",
	87	dev_name(&dwc->xhci->dev));
d07e8819 FB	88	platform_device_unregister(dwc->xhci);
d07e8819 FB	89	}