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v5.4
  1// SPDX-License-Identifier: GPL-2.0
  2/**
  3 * dwc3-pci.c - PCI Specific glue layer
  4 *
  5 * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com
  6 *
  7 * Authors: Felipe Balbi <balbi@ti.com>,
  8 *	    Sebastian Andrzej Siewior <bigeasy@linutronix.de>
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  9 */
 10
 11#include <linux/kernel.h>
 12#include <linux/module.h>
 13#include <linux/slab.h>
 14#include <linux/pci.h>
 15#include <linux/workqueue.h>
 16#include <linux/pm_runtime.h>
 17#include <linux/platform_device.h>
 18#include <linux/gpio/consumer.h>
 19#include <linux/gpio/machine.h>
 20#include <linux/acpi.h>
 21#include <linux/delay.h>
 22
 23#define PCI_DEVICE_ID_INTEL_BYT			0x0f37
 24#define PCI_DEVICE_ID_INTEL_MRFLD		0x119e
 25#define PCI_DEVICE_ID_INTEL_BSW			0x22b7
 26#define PCI_DEVICE_ID_INTEL_SPTLP		0x9d30
 27#define PCI_DEVICE_ID_INTEL_SPTH		0xa130
 28#define PCI_DEVICE_ID_INTEL_BXT			0x0aaa
 29#define PCI_DEVICE_ID_INTEL_BXT_M		0x1aaa
 30#define PCI_DEVICE_ID_INTEL_APL			0x5aaa
 31#define PCI_DEVICE_ID_INTEL_KBP			0xa2b0
 32#define PCI_DEVICE_ID_INTEL_CMLH		0x02ee
 33#define PCI_DEVICE_ID_INTEL_GLK			0x31aa
 34#define PCI_DEVICE_ID_INTEL_CNPLP		0x9dee
 35#define PCI_DEVICE_ID_INTEL_CNPH		0xa36e
 36#define PCI_DEVICE_ID_INTEL_ICLLP		0x34ee
 37#define PCI_DEVICE_ID_INTEL_EHLLP		0x4b7e
 38#define PCI_DEVICE_ID_INTEL_TGPLP		0xa0ee
 39
 40#define PCI_INTEL_BXT_DSM_GUID		"732b85d5-b7a7-4a1b-9ba0-4bbd00ffd511"
 41#define PCI_INTEL_BXT_FUNC_PMU_PWR	4
 42#define PCI_INTEL_BXT_STATE_D0		0
 43#define PCI_INTEL_BXT_STATE_D3		3
 44
 45#define GP_RWBAR			1
 46#define GP_RWREG1			0xa0
 47#define GP_RWREG1_ULPI_REFCLK_DISABLE	(1 << 17)
 48
 49/**
 50 * struct dwc3_pci - Driver private structure
 51 * @dwc3: child dwc3 platform_device
 52 * @pci: our link to PCI bus
 53 * @guid: _DSM GUID
 54 * @has_dsm_for_pm: true for devices which need to run _DSM on runtime PM
 55 * @wakeup_work: work for asynchronous resume
 56 */
 57struct dwc3_pci {
 58	struct platform_device *dwc3;
 59	struct pci_dev *pci;
 60
 61	guid_t guid;
 62
 63	unsigned int has_dsm_for_pm:1;
 64	struct work_struct wakeup_work;
 65};
 66
 67static const struct acpi_gpio_params reset_gpios = { 0, 0, false };
 68static const struct acpi_gpio_params cs_gpios = { 1, 0, false };
 69
 70static const struct acpi_gpio_mapping acpi_dwc3_byt_gpios[] = {
 71	{ "reset-gpios", &reset_gpios, 1 },
 72	{ "cs-gpios", &cs_gpios, 1 },
 73	{ },
 74};
 75
 76static struct gpiod_lookup_table platform_bytcr_gpios = {
 77	.dev_id		= "0000:00:16.0",
 78	.table		= {
 79		GPIO_LOOKUP("INT33FC:00", 54, "reset", GPIO_ACTIVE_HIGH),
 80		GPIO_LOOKUP("INT33FC:02", 14, "cs", GPIO_ACTIVE_HIGH),
 81		{}
 82	},
 83};
 84
 85static int dwc3_byt_enable_ulpi_refclock(struct pci_dev *pci)
 
 86{
 87	void __iomem	*reg;
 88	u32		value;
 
 
 
 
 89
 90	reg = pcim_iomap(pci, GP_RWBAR, 0);
 91	if (!reg)
 
 92		return -ENOMEM;
 93
 94	value = readl(reg + GP_RWREG1);
 95	if (!(value & GP_RWREG1_ULPI_REFCLK_DISABLE))
 96		goto unmap; /* ULPI refclk already enabled */
 97
 98	value &= ~GP_RWREG1_ULPI_REFCLK_DISABLE;
 99	writel(value, reg + GP_RWREG1);
100	/* This comes from the Intel Android x86 tree w/o any explanation */
101	msleep(100);
102unmap:
103	pcim_iounmap(pci, reg);
104	return 0;
105}
106
107static const struct property_entry dwc3_pci_intel_properties[] = {
108	PROPERTY_ENTRY_STRING("dr_mode", "peripheral"),
109	PROPERTY_ENTRY_BOOL("linux,sysdev_is_parent"),
110	{}
111};
112
113static const struct property_entry dwc3_pci_mrfld_properties[] = {
114	PROPERTY_ENTRY_STRING("dr_mode", "otg"),
115	PROPERTY_ENTRY_BOOL("linux,sysdev_is_parent"),
116	{}
117};
118
119static const struct property_entry dwc3_pci_amd_properties[] = {
120	PROPERTY_ENTRY_BOOL("snps,has-lpm-erratum"),
121	PROPERTY_ENTRY_U8("snps,lpm-nyet-threshold", 0xf),
122	PROPERTY_ENTRY_BOOL("snps,u2exit_lfps_quirk"),
123	PROPERTY_ENTRY_BOOL("snps,u2ss_inp3_quirk"),
124	PROPERTY_ENTRY_BOOL("snps,req_p1p2p3_quirk"),
125	PROPERTY_ENTRY_BOOL("snps,del_p1p2p3_quirk"),
126	PROPERTY_ENTRY_BOOL("snps,del_phy_power_chg_quirk"),
127	PROPERTY_ENTRY_BOOL("snps,lfps_filter_quirk"),
128	PROPERTY_ENTRY_BOOL("snps,rx_detect_poll_quirk"),
129	PROPERTY_ENTRY_BOOL("snps,tx_de_emphasis_quirk"),
130	PROPERTY_ENTRY_U8("snps,tx_de_emphasis", 1),
131	/* FIXME these quirks should be removed when AMD NL tapes out */
132	PROPERTY_ENTRY_BOOL("snps,disable_scramble_quirk"),
133	PROPERTY_ENTRY_BOOL("snps,dis_u3_susphy_quirk"),
134	PROPERTY_ENTRY_BOOL("snps,dis_u2_susphy_quirk"),
135	PROPERTY_ENTRY_BOOL("linux,sysdev_is_parent"),
136	{}
137};
138
139static int dwc3_pci_quirks(struct dwc3_pci *dwc)
140{
141	struct pci_dev			*pdev = dwc->pci;
142
143	if (pdev->vendor == PCI_VENDOR_ID_INTEL) {
144		if (pdev->device == PCI_DEVICE_ID_INTEL_BXT ||
145				pdev->device == PCI_DEVICE_ID_INTEL_BXT_M) {
146			guid_parse(PCI_INTEL_BXT_DSM_GUID, &dwc->guid);
147			dwc->has_dsm_for_pm = true;
148		}
149
150		if (pdev->device == PCI_DEVICE_ID_INTEL_BYT) {
151			struct gpio_desc *gpio;
152			int ret;
153
154			/* On BYT the FW does not always enable the refclock */
155			ret = dwc3_byt_enable_ulpi_refclock(pdev);
156			if (ret)
157				return ret;
158
159			ret = devm_acpi_dev_add_driver_gpios(&pdev->dev,
160					acpi_dwc3_byt_gpios);
161			if (ret)
162				dev_dbg(&pdev->dev, "failed to add mapping table\n");
163
164			/*
165			 * A lot of BYT devices lack ACPI resource entries for
166			 * the GPIOs, add a fallback mapping to the reference
167			 * design GPIOs which all boards seem to use.
168			 */
169			gpiod_add_lookup_table(&platform_bytcr_gpios);
170
171			/*
172			 * These GPIOs will turn on the USB2 PHY. Note that we have to
173			 * put the gpio descriptors again here because the phy driver
174			 * might want to grab them, too.
175			 */
176			gpio = gpiod_get_optional(&pdev->dev, "cs", GPIOD_OUT_LOW);
177			if (IS_ERR(gpio))
178				return PTR_ERR(gpio);
179
180			gpiod_set_value_cansleep(gpio, 1);
181			gpiod_put(gpio);
182
183			gpio = gpiod_get_optional(&pdev->dev, "reset", GPIOD_OUT_LOW);
184			if (IS_ERR(gpio))
185				return PTR_ERR(gpio);
186
187			if (gpio) {
188				gpiod_set_value_cansleep(gpio, 1);
189				gpiod_put(gpio);
190				usleep_range(10000, 11000);
191			}
192		}
193	}
194
195	return 0;
196}
197
198#ifdef CONFIG_PM
199static void dwc3_pci_resume_work(struct work_struct *work)
200{
201	struct dwc3_pci *dwc = container_of(work, struct dwc3_pci, wakeup_work);
202	struct platform_device *dwc3 = dwc->dwc3;
203	int ret;
204
205	ret = pm_runtime_get_sync(&dwc3->dev);
206	if (ret)
207		return;
208
209	pm_runtime_mark_last_busy(&dwc3->dev);
210	pm_runtime_put_sync_autosuspend(&dwc3->dev);
211}
212#endif
213
214static int dwc3_pci_probe(struct pci_dev *pci, const struct pci_device_id *id)
215{
216	struct property_entry *p = (struct property_entry *)id->driver_data;
217	struct dwc3_pci		*dwc;
218	struct resource		res[2];
219	int			ret;
220	struct device		*dev = &pci->dev;
221
222	ret = pcim_enable_device(pci);
223	if (ret) {
224		dev_err(dev, "failed to enable pci device\n");
225		return -ENODEV;
226	}
227
 
228	pci_set_master(pci);
229
230	dwc = devm_kzalloc(dev, sizeof(*dwc), GFP_KERNEL);
231	if (!dwc)
232		return -ENOMEM;
 
 
233
234	dwc->dwc3 = platform_device_alloc("dwc3", PLATFORM_DEVID_AUTO);
235	if (!dwc->dwc3)
236		return -ENOMEM;
 
 
 
237
238	memset(res, 0x00, sizeof(struct resource) * ARRAY_SIZE(res));
239
240	res[0].start	= pci_resource_start(pci, 0);
241	res[0].end	= pci_resource_end(pci, 0);
242	res[0].name	= "dwc_usb3";
243	res[0].flags	= IORESOURCE_MEM;
244
245	res[1].start	= pci->irq;
246	res[1].name	= "dwc_usb3";
247	res[1].flags	= IORESOURCE_IRQ;
248
249	ret = platform_device_add_resources(dwc->dwc3, res, ARRAY_SIZE(res));
250	if (ret) {
251		dev_err(dev, "couldn't add resources to dwc3 device\n");
252		goto err;
253	}
254
255	dwc->pci = pci;
256	dwc->dwc3->dev.parent = dev;
257	ACPI_COMPANION_SET(&dwc->dwc3->dev, ACPI_COMPANION(dev));
258
259	ret = platform_device_add_properties(dwc->dwc3, p);
260	if (ret < 0)
261		goto err;
262
263	ret = dwc3_pci_quirks(dwc);
264	if (ret)
265		goto err;
266
267	ret = platform_device_add(dwc->dwc3);
268	if (ret) {
269		dev_err(dev, "failed to register dwc3 device\n");
270		goto err;
271	}
272
273	device_init_wakeup(dev, true);
274	pci_set_drvdata(pci, dwc);
275	pm_runtime_put(dev);
276#ifdef CONFIG_PM
277	INIT_WORK(&dwc->wakeup_work, dwc3_pci_resume_work);
278#endif
279
280	return 0;
281err:
282	platform_device_put(dwc->dwc3);
283	return ret;
284}
285
286static void dwc3_pci_remove(struct pci_dev *pci)
287{
288	struct dwc3_pci		*dwc = pci_get_drvdata(pci);
289	struct pci_dev		*pdev = dwc->pci;
290
291	if (pdev->device == PCI_DEVICE_ID_INTEL_BYT)
292		gpiod_remove_lookup_table(&platform_bytcr_gpios);
293#ifdef CONFIG_PM
294	cancel_work_sync(&dwc->wakeup_work);
295#endif
296	device_init_wakeup(&pci->dev, false);
297	pm_runtime_get(&pci->dev);
298	platform_device_unregister(dwc->dwc3);
299}
300
301static const struct pci_device_id dwc3_pci_id_table[] = {
302	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_BSW),
303	  (kernel_ulong_t) &dwc3_pci_intel_properties },
304
305	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_BYT),
306	  (kernel_ulong_t) &dwc3_pci_intel_properties, },
307
308	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_MRFLD),
309	  (kernel_ulong_t) &dwc3_pci_mrfld_properties, },
310
311	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_CMLH),
312	  (kernel_ulong_t) &dwc3_pci_intel_properties, },
313
314	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_SPTLP),
315	  (kernel_ulong_t) &dwc3_pci_intel_properties, },
316
317	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_SPTH),
318	  (kernel_ulong_t) &dwc3_pci_intel_properties, },
319
320	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_BXT),
321	  (kernel_ulong_t) &dwc3_pci_intel_properties, },
322
323	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_BXT_M),
324	  (kernel_ulong_t) &dwc3_pci_intel_properties, },
325
326	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_APL),
327	  (kernel_ulong_t) &dwc3_pci_intel_properties, },
328
329	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_KBP),
330	  (kernel_ulong_t) &dwc3_pci_intel_properties, },
331
332	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_GLK),
333	  (kernel_ulong_t) &dwc3_pci_intel_properties, },
334
335	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_CNPLP),
336	  (kernel_ulong_t) &dwc3_pci_intel_properties, },
337
338	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_CNPH),
339	  (kernel_ulong_t) &dwc3_pci_intel_properties, },
340
341	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ICLLP),
342	  (kernel_ulong_t) &dwc3_pci_intel_properties, },
343
344	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_EHLLP),
345	  (kernel_ulong_t) &dwc3_pci_intel_properties, },
346
347	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_TGPLP),
348	  (kernel_ulong_t) &dwc3_pci_intel_properties, },
349
350	{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_NL_USB),
351	  (kernel_ulong_t) &dwc3_pci_amd_properties, },
352	{  }	/* Terminating Entry */
353};
354MODULE_DEVICE_TABLE(pci, dwc3_pci_id_table);
355
356#if defined(CONFIG_PM) || defined(CONFIG_PM_SLEEP)
357static int dwc3_pci_dsm(struct dwc3_pci *dwc, int param)
358{
359	union acpi_object *obj;
360	union acpi_object tmp;
361	union acpi_object argv4 = ACPI_INIT_DSM_ARGV4(1, &tmp);
362
363	if (!dwc->has_dsm_for_pm)
364		return 0;
365
366	tmp.type = ACPI_TYPE_INTEGER;
367	tmp.integer.value = param;
368
369	obj = acpi_evaluate_dsm(ACPI_HANDLE(&dwc->pci->dev), &dwc->guid,
370			1, PCI_INTEL_BXT_FUNC_PMU_PWR, &argv4);
371	if (!obj) {
372		dev_err(&dwc->pci->dev, "failed to evaluate _DSM\n");
373		return -EIO;
374	}
375
376	ACPI_FREE(obj);
377
378	return 0;
379}
380#endif /* CONFIG_PM || CONFIG_PM_SLEEP */
381
382#ifdef CONFIG_PM
383static int dwc3_pci_runtime_suspend(struct device *dev)
384{
385	struct dwc3_pci		*dwc = dev_get_drvdata(dev);
386
387	if (device_can_wakeup(dev))
388		return dwc3_pci_dsm(dwc, PCI_INTEL_BXT_STATE_D3);
 
389
390	return -EBUSY;
391}
392
393static int dwc3_pci_runtime_resume(struct device *dev)
394{
395	struct dwc3_pci		*dwc = dev_get_drvdata(dev);
396	int			ret;
397
398	ret = dwc3_pci_dsm(dwc, PCI_INTEL_BXT_STATE_D0);
399	if (ret)
400		return ret;
401
402	queue_work(pm_wq, &dwc->wakeup_work);
403
404	return 0;
405}
406#endif /* CONFIG_PM */
407
408#ifdef CONFIG_PM_SLEEP
409static int dwc3_pci_suspend(struct device *dev)
410{
411	struct dwc3_pci		*dwc = dev_get_drvdata(dev);
412
413	return dwc3_pci_dsm(dwc, PCI_INTEL_BXT_STATE_D3);
414}
415
416static int dwc3_pci_resume(struct device *dev)
417{
418	struct dwc3_pci		*dwc = dev_get_drvdata(dev);
419
420	return dwc3_pci_dsm(dwc, PCI_INTEL_BXT_STATE_D0);
 
 
 
421}
422#endif /* CONFIG_PM_SLEEP */
423
424static const struct dev_pm_ops dwc3_pci_dev_pm_ops = {
425	SET_SYSTEM_SLEEP_PM_OPS(dwc3_pci_suspend, dwc3_pci_resume)
426	SET_RUNTIME_PM_OPS(dwc3_pci_runtime_suspend, dwc3_pci_runtime_resume,
427		NULL)
 
 
428};
 
429
430static struct pci_driver dwc3_pci_driver = {
431	.name		= "dwc3-pci",
432	.id_table	= dwc3_pci_id_table,
433	.probe		= dwc3_pci_probe,
434	.remove		= dwc3_pci_remove,
435	.driver		= {
436		.pm	= &dwc3_pci_dev_pm_ops,
437	}
438};
439
440MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>");
441MODULE_LICENSE("GPL v2");
442MODULE_DESCRIPTION("DesignWare USB3 PCI Glue Layer");
443
444module_pci_driver(dwc3_pci_driver);
v3.5.6
 
  1/**
  2 * dwc3-pci.c - PCI Specific glue layer
  3 *
  4 * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com
  5 *
  6 * Authors: Felipe Balbi <balbi@ti.com>,
  7 *	    Sebastian Andrzej Siewior <bigeasy@linutronix.de>
  8 *
  9 * Redistribution and use in source and binary forms, with or without
 10 * modification, are permitted provided that the following conditions
 11 * are met:
 12 * 1. Redistributions of source code must retain the above copyright
 13 *    notice, this list of conditions, and the following disclaimer,
 14 *    without modification.
 15 * 2. Redistributions in binary form must reproduce the above copyright
 16 *    notice, this list of conditions and the following disclaimer in the
 17 *    documentation and/or other materials provided with the distribution.
 18 * 3. The names of the above-listed copyright holders may not be used
 19 *    to endorse or promote products derived from this software without
 20 *    specific prior written permission.
 21 *
 22 * ALTERNATIVELY, this software may be distributed under the terms of the
 23 * GNU General Public License ("GPL") version 2, as published by the Free
 24 * Software Foundation.
 25 *
 26 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 27 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 28 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 30 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 31 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 32 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 33 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 34 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 35 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 36 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 37 */
 38
 39#include <linux/kernel.h>
 40#include <linux/module.h>
 41#include <linux/slab.h>
 42#include <linux/pci.h>
 
 
 43#include <linux/platform_device.h>
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 44
 45#include "core.h"
 
 46
 47/* FIXME define these in <linux/pci_ids.h> */
 48#define PCI_VENDOR_ID_SYNOPSYS		0x16c3
 49#define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3	0xabcd
 
 
 50
 51struct dwc3_pci {
 52	struct device		*dev;
 53	struct platform_device	*dwc3;
 
 
 
 
 54};
 55
 56static int __devinit dwc3_pci_probe(struct pci_dev *pci,
 57		const struct pci_device_id *id)
 58{
 59	struct resource		res[2];
 60	struct platform_device	*dwc3;
 61	struct dwc3_pci		*glue;
 62	int			ret = -ENOMEM;
 63	int			devid;
 64	struct device		*dev = &pci->dev;
 65
 66	glue = devm_kzalloc(dev, sizeof(*glue), GFP_KERNEL);
 67	if (!glue) {
 68		dev_err(dev, "not enough memory\n");
 69		return -ENOMEM;
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 70	}
 71
 72	glue->dev = dev;
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 73
 74	ret = pci_enable_device(pci);
 
 
 
 
 
 
 
 
 75	if (ret) {
 76		dev_err(dev, "failed to enable pci device\n");
 77		return -ENODEV;
 78	}
 79
 80	pci_set_power_state(pci, PCI_D0);
 81	pci_set_master(pci);
 82
 83	devid = dwc3_get_device_id();
 84	if (devid < 0) {
 85		ret = -ENOMEM;
 86		goto err1;
 87	}
 88
 89	dwc3 = platform_device_alloc("dwc3", devid);
 90	if (!dwc3) {
 91		dev_err(dev, "couldn't allocate dwc3 device\n");
 92		ret = -ENOMEM;
 93		goto err1;
 94	}
 95
 96	memset(res, 0x00, sizeof(struct resource) * ARRAY_SIZE(res));
 97
 98	res[0].start	= pci_resource_start(pci, 0);
 99	res[0].end	= pci_resource_end(pci, 0);
100	res[0].name	= "dwc_usb3";
101	res[0].flags	= IORESOURCE_MEM;
102
103	res[1].start	= pci->irq;
104	res[1].name	= "dwc_usb3";
105	res[1].flags	= IORESOURCE_IRQ;
106
107	ret = platform_device_add_resources(dwc3, res, ARRAY_SIZE(res));
108	if (ret) {
109		dev_err(dev, "couldn't add resources to dwc3 device\n");
110		goto err2;
111	}
112
113	pci_set_drvdata(pci, glue);
 
 
 
 
 
 
 
 
 
 
114
115	dma_set_coherent_mask(&dwc3->dev, dev->coherent_dma_mask);
 
 
 
 
116
117	dwc3->dev.dma_mask = dev->dma_mask;
118	dwc3->dev.dma_parms = dev->dma_parms;
119	dwc3->dev.parent = dev;
120	glue->dwc3 = dwc3;
 
 
121
122	ret = platform_device_add(dwc3);
123	if (ret) {
124		dev_err(dev, "failed to register dwc3 device\n");
125		goto err3;
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
126	}
127
 
 
128	return 0;
 
 
 
 
 
 
 
129
130err3:
131	pci_set_drvdata(pci, NULL);
132	platform_device_put(dwc3);
133
134err2:
135	dwc3_put_device_id(devid);
 
 
 
 
 
136
137err1:
138	pci_disable_device(pci);
 
139
140	return ret;
 
 
 
 
 
 
 
 
 
 
 
141}
142
143static void __devexit dwc3_pci_remove(struct pci_dev *pci)
144{
145	struct dwc3_pci	*glue = pci_get_drvdata(pci);
146
147	dwc3_put_device_id(glue->dwc3->id);
148	platform_device_unregister(glue->dwc3);
149	pci_set_drvdata(pci, NULL);
150	pci_disable_device(pci);
151}
 
152
153static DEFINE_PCI_DEVICE_TABLE(dwc3_pci_id_table) = {
154	{
155		PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS,
156				PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3),
157	},
158	{  }	/* Terminating Entry */
159};
160MODULE_DEVICE_TABLE(pci, dwc3_pci_id_table);
161
162static struct pci_driver dwc3_pci_driver = {
163	.name		= "dwc3-pci",
164	.id_table	= dwc3_pci_id_table,
165	.probe		= dwc3_pci_probe,
166	.remove		= __devexit_p(dwc3_pci_remove),
 
 
 
167};
168
169MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>");
170MODULE_LICENSE("Dual BSD/GPL");
171MODULE_DESCRIPTION("DesignWare USB3 PCI Glue Layer");
172
173module_pci_driver(dwc3_pci_driver);