[mirror_ubuntu-artful-kernel.git] / drivers / usb / dwc3 / dwc3-pci.c

/**
 * dwc3-pci.c - PCI Specific glue layer
 *
 * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com
 *
 * Authors: Felipe Balbi <balbi@ti.com>,
 *	    Sebastian Andrzej Siewior <bigeasy@linutronix.de>
 *
 * 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/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/pci.h>
#include <linux/pm_runtime.h>
#include <linux/platform_device.h>
#include <linux/gpio/consumer.h>
#include <linux/acpi.h>
#include <linux/delay.h>

#define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3		0xabcd
#define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3_AXI	0xabce
#define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB31	0xabcf
#define PCI_DEVICE_ID_INTEL_BYT			0x0f37
#define PCI_DEVICE_ID_INTEL_MRFLD		0x119e
#define PCI_DEVICE_ID_INTEL_BSW			0x22b7
#define PCI_DEVICE_ID_INTEL_SPTLP		0x9d30
#define PCI_DEVICE_ID_INTEL_SPTH		0xa130
#define PCI_DEVICE_ID_INTEL_BXT			0x0aaa
#define PCI_DEVICE_ID_INTEL_BXT_M		0x1aaa
#define PCI_DEVICE_ID_INTEL_APL			0x5aaa
#define PCI_DEVICE_ID_INTEL_KBP			0xa2b0
#define PCI_DEVICE_ID_INTEL_GLK			0x31aa
#define PCI_DEVICE_ID_INTEL_CNPLP		0x9dee
#define PCI_DEVICE_ID_INTEL_CNPH		0xa36e

#define PCI_INTEL_BXT_DSM_UUID		"732b85d5-b7a7-4a1b-9ba0-4bbd00ffd511"
#define PCI_INTEL_BXT_FUNC_PMU_PWR	4
#define PCI_INTEL_BXT_STATE_D0		0
#define PCI_INTEL_BXT_STATE_D3		3

/**
 * struct dwc3_pci - Driver private structure
 * @dwc3: child dwc3 platform_device
 * @pci: our link to PCI bus
 * @uuid: _DSM UUID
 * @has_dsm_for_pm: true for devices which need to run _DSM on runtime PM
 */
struct dwc3_pci {
	struct platform_device *dwc3;
	struct pci_dev *pci;

	u8 uuid[16];

	unsigned int has_dsm_for_pm:1;
};

static const struct acpi_gpio_params reset_gpios = { 0, 0, false };
static const struct acpi_gpio_params cs_gpios = { 1, 0, false };

static const struct acpi_gpio_mapping acpi_dwc3_byt_gpios[] = {
	{ "reset-gpios", &reset_gpios, 1 },
	{ "cs-gpios", &cs_gpios, 1 },
	{ },
};

static int dwc3_pci_quirks(struct dwc3_pci *dwc)
{
	struct platform_device		*dwc3 = dwc->dwc3;
	struct pci_dev			*pdev = dwc->pci;

	if (pdev->vendor == PCI_VENDOR_ID_AMD &&
	    pdev->device == PCI_DEVICE_ID_AMD_NL_USB) {
		struct property_entry properties[] = {
			PROPERTY_ENTRY_BOOL("snps,has-lpm-erratum"),
			PROPERTY_ENTRY_U8("snps,lpm-nyet-threshold", 0xf),
			PROPERTY_ENTRY_BOOL("snps,u2exit_lfps_quirk"),
			PROPERTY_ENTRY_BOOL("snps,u2ss_inp3_quirk"),
			PROPERTY_ENTRY_BOOL("snps,req_p1p2p3_quirk"),
			PROPERTY_ENTRY_BOOL("snps,del_p1p2p3_quirk"),
			PROPERTY_ENTRY_BOOL("snps,del_phy_power_chg_quirk"),
			PROPERTY_ENTRY_BOOL("snps,lfps_filter_quirk"),
			PROPERTY_ENTRY_BOOL("snps,rx_detect_poll_quirk"),
			PROPERTY_ENTRY_BOOL("snps,tx_de_emphasis_quirk"),
			PROPERTY_ENTRY_U8("snps,tx_de_emphasis", 1),
			/*
			 * FIXME these quirks should be removed when AMD NL
			 * tapes out
			 */
			PROPERTY_ENTRY_BOOL("snps,disable_scramble_quirk"),
			PROPERTY_ENTRY_BOOL("snps,dis_u3_susphy_quirk"),
			PROPERTY_ENTRY_BOOL("snps,dis_u2_susphy_quirk"),
			PROPERTY_ENTRY_BOOL("linux,sysdev_is_parent"),
			{ },
		};

		return platform_device_add_properties(dwc3, properties);
	}

	if (pdev->vendor == PCI_VENDOR_ID_INTEL) {
		int ret;

		struct property_entry properties[] = {
			PROPERTY_ENTRY_STRING("dr_mode", "peripheral"),
			PROPERTY_ENTRY_BOOL("linux,sysdev_is_parent"),
			{ }
		};

		ret = platform_device_add_properties(dwc3, properties);
		if (ret < 0)
			return ret;

		if (pdev->device == PCI_DEVICE_ID_INTEL_BXT ||
				pdev->device == PCI_DEVICE_ID_INTEL_BXT_M) {
			acpi_str_to_uuid(PCI_INTEL_BXT_DSM_UUID, dwc->uuid);
			dwc->has_dsm_for_pm = true;
		}

		if (pdev->device == PCI_DEVICE_ID_INTEL_BYT) {
			struct gpio_desc *gpio;

			ret = devm_acpi_dev_add_driver_gpios(&pdev->dev,
					acpi_dwc3_byt_gpios);
			if (ret)
				dev_dbg(&pdev->dev, "failed to add mapping table\n");

			/*
			 * These GPIOs will turn on the USB2 PHY. Note that we have to
			 * put the gpio descriptors again here because the phy driver
			 * might want to grab them, too.
			 */
			gpio = gpiod_get_optional(&pdev->dev, "cs", GPIOD_OUT_LOW);
			if (IS_ERR(gpio))
				return PTR_ERR(gpio);

			gpiod_set_value_cansleep(gpio, 1);
			gpiod_put(gpio);

			gpio = gpiod_get_optional(&pdev->dev, "reset", GPIOD_OUT_LOW);
			if (IS_ERR(gpio))
				return PTR_ERR(gpio);

			if (gpio) {
				gpiod_set_value_cansleep(gpio, 1);
				gpiod_put(gpio);
				usleep_range(10000, 11000);
			}
		}
	}

	if (pdev->vendor == PCI_VENDOR_ID_SYNOPSYS &&
	    (pdev->device == PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3 ||
	     pdev->device == PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3_AXI ||
	     pdev->device == PCI_DEVICE_ID_SYNOPSYS_HAPSUSB31)) {
		struct property_entry properties[] = {
			PROPERTY_ENTRY_BOOL("snps,usb3_lpm_capable"),
			PROPERTY_ENTRY_BOOL("snps,has-lpm-erratum"),
			PROPERTY_ENTRY_BOOL("snps,dis_enblslpm_quirk"),
			PROPERTY_ENTRY_BOOL("linux,sysdev_is_parent"),
			{ },
		};

		return platform_device_add_properties(dwc3, properties);
	}

	return 0;
}

static int dwc3_pci_probe(struct pci_dev *pci,
		const struct pci_device_id *id)
{
	struct dwc3_pci		*dwc;
	struct resource		res[2];
	int			ret;
	struct device		*dev = &pci->dev;

	ret = pcim_enable_device(pci);
	if (ret) {
		dev_err(dev, "failed to enable pci device\n");
		return -ENODEV;
	}

	pci_set_master(pci);

	dwc = devm_kzalloc(dev, sizeof(*dwc), GFP_KERNEL);
	if (!dwc)
		return -ENOMEM;

	dwc->dwc3 = platform_device_alloc("dwc3", PLATFORM_DEVID_AUTO);
	if (!dwc->dwc3)
		return -ENOMEM;

	memset(res, 0x00, sizeof(struct resource) * ARRAY_SIZE(res));

	res[0].start	= pci_resource_start(pci, 0);
	res[0].end	= pci_resource_end(pci, 0);
	res[0].name	= "dwc_usb3";
	res[0].flags	= IORESOURCE_MEM;

	res[1].start	= pci->irq;
	res[1].name	= "dwc_usb3";
	res[1].flags	= IORESOURCE_IRQ;

	ret = platform_device_add_resources(dwc->dwc3, res, ARRAY_SIZE(res));
	if (ret) {
		dev_err(dev, "couldn't add resources to dwc3 device\n");
		return ret;
	}

	dwc->pci = pci;
	dwc->dwc3->dev.parent = dev;
	ACPI_COMPANION_SET(&dwc->dwc3->dev, ACPI_COMPANION(dev));

	ret = dwc3_pci_quirks(dwc);
	if (ret)
		goto err;

	ret = platform_device_add(dwc->dwc3);
	if (ret) {
		dev_err(dev, "failed to register dwc3 device\n");
		goto err;
	}

	device_init_wakeup(dev, true);
	device_set_run_wake(dev, true);
	pci_set_drvdata(pci, dwc);
	pm_runtime_put(dev);

	return 0;
err:
	platform_device_put(dwc->dwc3);
	return ret;
}

static void dwc3_pci_remove(struct pci_dev *pci)
{
	struct dwc3_pci		*dwc = pci_get_drvdata(pci);

	device_init_wakeup(&pci->dev, false);
	pm_runtime_get(&pci->dev);
	platform_device_unregister(dwc->dwc3);
}

static const struct pci_device_id dwc3_pci_id_table[] = {
	{
		PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS,
				PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3),
	},
	{
		PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS,
				PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3_AXI),
	},
	{
		PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS,
				PCI_DEVICE_ID_SYNOPSYS_HAPSUSB31),
	},
	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BSW), },
	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BYT), },
	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_MRFLD), },
	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SPTLP), },
	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SPTH), },
	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BXT), },
	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BXT_M), },
	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_APL), },
	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_KBP), },
	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_GLK), },
	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CNPLP), },
	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CNPH), },
	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_NL_USB), },
	{  }	/* Terminating Entry */
};
MODULE_DEVICE_TABLE(pci, dwc3_pci_id_table);

#if defined(CONFIG_PM) || defined(CONFIG_PM_SLEEP)
static int dwc3_pci_dsm(struct dwc3_pci *dwc, int param)
{
	union acpi_object *obj;
	union acpi_object tmp;
	union acpi_object argv4 = ACPI_INIT_DSM_ARGV4(1, &tmp);

	if (!dwc->has_dsm_for_pm)
		return 0;

	tmp.type = ACPI_TYPE_INTEGER;
	tmp.integer.value = param;

	obj = acpi_evaluate_dsm(ACPI_HANDLE(&dwc->pci->dev), dwc->uuid,
			1, PCI_INTEL_BXT_FUNC_PMU_PWR, &argv4);
	if (!obj) {
		dev_err(&dwc->pci->dev, "failed to evaluate _DSM\n");
		return -EIO;
	}

	ACPI_FREE(obj);

	return 0;
}
#endif /* CONFIG_PM || CONFIG_PM_SLEEP */

#ifdef CONFIG_PM
static int dwc3_pci_runtime_suspend(struct device *dev)
{
	struct dwc3_pci		*dwc = dev_get_drvdata(dev);

	if (device_run_wake(dev))
		return dwc3_pci_dsm(dwc, PCI_INTEL_BXT_STATE_D3);

	return -EBUSY;
}

static int dwc3_pci_runtime_resume(struct device *dev)
{
	struct dwc3_pci		*dwc = dev_get_drvdata(dev);
	struct platform_device	*dwc3 = dwc->dwc3;
	int			ret;

	ret = dwc3_pci_dsm(dwc, PCI_INTEL_BXT_STATE_D0);
	if (ret)
		return ret;

	return pm_runtime_get(&dwc3->dev);
}
#endif /* CONFIG_PM */

#ifdef CONFIG_PM_SLEEP
static int dwc3_pci_suspend(struct device *dev)
{
	struct dwc3_pci		*dwc = dev_get_drvdata(dev);

	return dwc3_pci_dsm(dwc, PCI_INTEL_BXT_STATE_D3);
}

static int dwc3_pci_resume(struct device *dev)
{
	struct dwc3_pci		*dwc = dev_get_drvdata(dev);

	return dwc3_pci_dsm(dwc, PCI_INTEL_BXT_STATE_D0);
}
#endif /* CONFIG_PM_SLEEP */

static struct dev_pm_ops dwc3_pci_dev_pm_ops = {
	SET_SYSTEM_SLEEP_PM_OPS(dwc3_pci_suspend, dwc3_pci_resume)
	SET_RUNTIME_PM_OPS(dwc3_pci_runtime_suspend, dwc3_pci_runtime_resume,
		NULL)
};

static struct pci_driver dwc3_pci_driver = {
	.name		= "dwc3-pci",
	.id_table	= dwc3_pci_id_table,
	.probe		= dwc3_pci_probe,
	.remove		= dwc3_pci_remove,
	.driver		= {
		.pm	= &dwc3_pci_dev_pm_ops,
	}
};

MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>");
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("DesignWare USB3 PCI Glue Layer");

module_pci_driver(dwc3_pci_driver);
Commit	Line	Data
72246da4 FB	1	/**
	2	* dwc3-pci.c - PCI Specific glue layer
	3	*
	4	* Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com
72246da4 FB	5	*
	6	* Authors: Felipe Balbi <balbi@ti.com>,
	7	* Sebastian Andrzej Siewior <bigeasy@linutronix.de>
	8	*
5945f789 FB	9	* This program is free software: you can redistribute it and/or modify
	10	* it under the terms of the GNU General Public License version 2 of
	11	* the License as published by the Free Software Foundation.
72246da4	12	*
5945f789 FB	13	* This program is distributed in the hope that it will be useful,
	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	* GNU General Public License for more details.
72246da4 FB	17	*/
	18
	19	#include <linux/kernel.h>
46a57283	20	#include <linux/module.h>
72246da4 FB	21	#include <linux/slab.h>
72246da4 FB	22	#include <linux/pci.h>
e9af9229	23	#include <linux/pm_runtime.h>
72246da4	24	#include <linux/platform_device.h>
a89d977c HK	25	#include <linux/gpio/consumer.h>
a89d977c HK	26	#include <linux/acpi.h>
cf48305d	27	#include <linux/delay.h>
8f317b47	28
9a5a0783 JY	29	#define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3 0xabcd
	30	#define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3_AXI 0xabce
	31	#define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB31 0xabcf
	32	#define PCI_DEVICE_ID_INTEL_BYT 0x0f37
	33	#define PCI_DEVICE_ID_INTEL_MRFLD 0x119e
	34	#define PCI_DEVICE_ID_INTEL_BSW 0x22b7
	35	#define PCI_DEVICE_ID_INTEL_SPTLP 0x9d30
	36	#define PCI_DEVICE_ID_INTEL_SPTH 0xa130
b4c580a4	37	#define PCI_DEVICE_ID_INTEL_BXT 0x0aaa
1ffb4d5c	38	#define PCI_DEVICE_ID_INTEL_BXT_M 0x1aaa
b4c580a4	39	#define PCI_DEVICE_ID_INTEL_APL 0x5aaa
4491ed50	40	#define PCI_DEVICE_ID_INTEL_KBP 0xa2b0
8f8983a5	41	#define PCI_DEVICE_ID_INTEL_GLK 0x31aa
68217959 HK	42	#define PCI_DEVICE_ID_INTEL_CNPLP 0x9dee
68217959 HK	43	#define PCI_DEVICE_ID_INTEL_CNPH 0xa36e
72246da4	44
9cecca75 FB	45	#define PCI_INTEL_BXT_DSM_UUID "732b85d5-b7a7-4a1b-9ba0-4bbd00ffd511"
	46	#define PCI_INTEL_BXT_FUNC_PMU_PWR 4
	47	#define PCI_INTEL_BXT_STATE_D0 0
	48	#define PCI_INTEL_BXT_STATE_D3 3
	49
0f817ae6 FB	50	/**
	51	* struct dwc3_pci - Driver private structure
	52	* @dwc3: child dwc3 platform_device
	53	* @pci: our link to PCI bus
9cecca75 FB	54	* @uuid: _DSM UUID
9cecca75 FB	55	* @has_dsm_for_pm: true for devices which need to run _DSM on runtime PM
0f817ae6 FB	56	*/
	57	struct dwc3_pci {
	58	struct platform_device *dwc3;
	59	struct pci_dev *pci;
9cecca75 FB	60
	61	u8 uuid[16];
	62
	63	unsigned int has_dsm_for_pm:1;
0f817ae6 FB	64	};
0f817ae6 FB	65
a89d977c HK	66	static const struct acpi_gpio_params reset_gpios = { 0, 0, false };
	67	static const struct acpi_gpio_params cs_gpios = { 1, 0, false };
	68
	69	static const struct acpi_gpio_mapping acpi_dwc3_byt_gpios[] = {
	70	{ "reset-gpios", &reset_gpios, 1 },
	71	{ "cs-gpios", &cs_gpios, 1 },
	72	{ },
	73	};
	74
0f817ae6	75	static int dwc3_pci_quirks(struct dwc3_pci *dwc)
2cd9ddf7	76	{
0f817ae6 FB	77	struct platform_device *dwc3 = dwc->dwc3;
	78	struct pci_dev *pdev = dwc->pci;
	79
2cd9ddf7 HK	80	if (pdev->vendor == PCI_VENDOR_ID_AMD &&
2cd9ddf7 HK	81	pdev->device == PCI_DEVICE_ID_AMD_NL_USB) {
cf48305d HK	82	struct property_entry properties[] = {
	83	PROPERTY_ENTRY_BOOL("snps,has-lpm-erratum"),
	84	PROPERTY_ENTRY_U8("snps,lpm-nyet-threshold", 0xf),
	85	PROPERTY_ENTRY_BOOL("snps,u2exit_lfps_quirk"),
	86	PROPERTY_ENTRY_BOOL("snps,u2ss_inp3_quirk"),
	87	PROPERTY_ENTRY_BOOL("snps,req_p1p2p3_quirk"),
	88	PROPERTY_ENTRY_BOOL("snps,del_p1p2p3_quirk"),
	89	PROPERTY_ENTRY_BOOL("snps,del_phy_power_chg_quirk"),
	90	PROPERTY_ENTRY_BOOL("snps,lfps_filter_quirk"),
	91	PROPERTY_ENTRY_BOOL("snps,rx_detect_poll_quirk"),
	92	PROPERTY_ENTRY_BOOL("snps,tx_de_emphasis_quirk"),
	93	PROPERTY_ENTRY_U8("snps,tx_de_emphasis", 1),
	94	/*
	95	* FIXME these quirks should be removed when AMD NL
	96	* tapes out
	97	*/
	98	PROPERTY_ENTRY_BOOL("snps,disable_scramble_quirk"),
	99	PROPERTY_ENTRY_BOOL("snps,dis_u3_susphy_quirk"),
	100	PROPERTY_ENTRY_BOOL("snps,dis_u2_susphy_quirk"),
0eae2fde	101	PROPERTY_ENTRY_BOOL("linux,sysdev_is_parent"),
cf48305d HK	102	{ },
	103	};
	104
	105	return platform_device_add_properties(dwc3, properties);
2cd9ddf7 HK	106	}
2cd9ddf7 HK	107
e6fe66fe FB	108	if (pdev->vendor == PCI_VENDOR_ID_INTEL) {
	109	int ret;
	110
	111	struct property_entry properties[] = {
51c1685d	112	PROPERTY_ENTRY_STRING("dr_mode", "peripheral"),
0eae2fde	113	PROPERTY_ENTRY_BOOL("linux,sysdev_is_parent"),
e6fe66fe FB	114	{ }
	115	};
	116
	117	ret = platform_device_add_properties(dwc3, properties);
	118	if (ret < 0)
	119	return ret;
	120
9cecca75 FB	121	if (pdev->device == PCI_DEVICE_ID_INTEL_BXT \|\|
	122	pdev->device == PCI_DEVICE_ID_INTEL_BXT_M) {
	123	acpi_str_to_uuid(PCI_INTEL_BXT_DSM_UUID, dwc->uuid);
	124	dwc->has_dsm_for_pm = true;
	125	}
	126
e6fe66fe FB	127	if (pdev->device == PCI_DEVICE_ID_INTEL_BYT) {
	128	struct gpio_desc *gpio;
	129
4a56e413	130	ret = devm_acpi_dev_add_driver_gpios(&pdev->dev,
e6fe66fe	131	acpi_dwc3_byt_gpios);
4a56e413 AS	132	if (ret)
4a56e413 AS	133	dev_dbg(&pdev->dev, "failed to add mapping table\n");
e6fe66fe FB	134
	135	/*
	136	* These GPIOs will turn on the USB2 PHY. Note that we have to
	137	* put the gpio descriptors again here because the phy driver
	138	* might want to grab them, too.
	139	*/
	140	gpio = gpiod_get_optional(&pdev->dev, "cs", GPIOD_OUT_LOW);
	141	if (IS_ERR(gpio))
	142	return PTR_ERR(gpio);
	143
a89d977c HK	144	gpiod_set_value_cansleep(gpio, 1);
a89d977c HK	145	gpiod_put(gpio);
e6fe66fe FB	146
	147	gpio = gpiod_get_optional(&pdev->dev, "reset", GPIOD_OUT_LOW);
	148	if (IS_ERR(gpio))
	149	return PTR_ERR(gpio);
	150
	151	if (gpio) {
	152	gpiod_set_value_cansleep(gpio, 1);
	153	gpiod_put(gpio);
	154	usleep_range(10000, 11000);
	155	}
a89d977c HK	156	}
	157	}
	158
bb7f3d6d JY	159	if (pdev->vendor == PCI_VENDOR_ID_SYNOPSYS &&
	160	(pdev->device == PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3 \|\|
	161	pdev->device == PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3_AXI \|\|
	162	pdev->device == PCI_DEVICE_ID_SYNOPSYS_HAPSUSB31)) {
cf48305d HK	163	struct property_entry properties[] = {
	164	PROPERTY_ENTRY_BOOL("snps,usb3_lpm_capable"),
	165	PROPERTY_ENTRY_BOOL("snps,has-lpm-erratum"),
	166	PROPERTY_ENTRY_BOOL("snps,dis_enblslpm_quirk"),
0eae2fde	167	PROPERTY_ENTRY_BOOL("linux,sysdev_is_parent"),
cf48305d HK	168	{ },
	169	};
	170
	171	return platform_device_add_properties(dwc3, properties);
bb7f3d6d JY	172	}
bb7f3d6d JY	173
2cd9ddf7 HK	174	return 0;
2cd9ddf7 HK	175	}
72246da4	176
41ac7b3a	177	static int dwc3_pci_probe(struct pci_dev *pci,
72246da4 FB	178	const struct pci_device_id *id)
72246da4 FB	179	{
0f817ae6	180	struct dwc3_pci *dwc;
72246da4	181	struct resource res[2];
b09e99ee	182	int ret;
802ca850	183	struct device *dev = &pci->dev;
72246da4	184
f1c7e710	185	ret = pcim_enable_device(pci);
72246da4	186	if (ret) {
802ca850 CP	187	dev_err(dev, "failed to enable pci device\n");
802ca850 CP	188	return -ENODEV;
72246da4 FB	189	}
72246da4 FB	190
72246da4 FB	191	pci_set_master(pci);
72246da4 FB	192
0f817ae6 FB	193	dwc = devm_kzalloc(dev, sizeof(*dwc), GFP_KERNEL);
	194	if (!dwc)
	195	return -ENOMEM;
	196
	197	dwc->dwc3 = platform_device_alloc("dwc3", PLATFORM_DEVID_AUTO);
	198	if (!dwc->dwc3)
f1c7e710	199	return -ENOMEM;
72246da4 FB	200
	201	memset(res, 0x00, sizeof(struct resource) * ARRAY_SIZE(res));
	202
	203	res[0].start = pci_resource_start(pci, 0);
	204	res[0].end = pci_resource_end(pci, 0);
	205	res[0].name = "dwc_usb3";
	206	res[0].flags = IORESOURCE_MEM;
	207
	208	res[1].start = pci->irq;
	209	res[1].name = "dwc_usb3";
	210	res[1].flags = IORESOURCE_IRQ;
	211
0f817ae6	212	ret = platform_device_add_resources(dwc->dwc3, res, ARRAY_SIZE(res));
72246da4	213	if (ret) {
802ca850	214	dev_err(dev, "couldn't add resources to dwc3 device\n");
f1c7e710	215	return ret;
72246da4 FB	216	}
72246da4 FB	217
0f817ae6 FB	218	dwc->pci = pci;
	219	dwc->dwc3->dev.parent = dev;
	220	ACPI_COMPANION_SET(&dwc->dwc3->dev, ACPI_COMPANION(dev));
72246da4	221
0f817ae6	222	ret = dwc3_pci_quirks(dwc);
474799f0 HK	223	if (ret)
	224	goto err;
	225
0f817ae6	226	ret = platform_device_add(dwc->dwc3);
72246da4	227	if (ret) {
802ca850	228	dev_err(dev, "failed to register dwc3 device\n");
2cd9ddf7	229	goto err;
72246da4 FB	230	}
72246da4 FB	231
e9af9229 FB	232	device_init_wakeup(dev, true);
e9af9229 FB	233	device_set_run_wake(dev, true);
0f817ae6	234	pci_set_drvdata(pci, dwc);
e9af9229 FB	235	pm_runtime_put(dev);
e9af9229 FB	236
72246da4	237	return 0;
2cd9ddf7	238	err:
0f817ae6	239	platform_device_put(dwc->dwc3);
72246da4 FB	240	return ret;
	241	}
	242
fb4e98ab	243	static void dwc3_pci_remove(struct pci_dev *pci)
72246da4	244	{
0f817ae6 FB	245	struct dwc3_pci *dwc = pci_get_drvdata(pci);
0f817ae6 FB	246
e9af9229 FB	247	device_init_wakeup(&pci->dev, false);
e9af9229 FB	248	pm_runtime_get(&pci->dev);
0f817ae6	249	platform_device_unregister(dwc->dwc3);
72246da4 FB	250	}
72246da4 FB	251
782df20c	252	static const struct pci_device_id dwc3_pci_id_table[] = {
72246da4 FB	253	{
	254	PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS,
	255	PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3),
	256	},
41adc59c JY	257	{
	258	PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS,
	259	PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3_AXI),
	260	},
e8095a25 JY	261	{
	262	PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS,
	263	PCI_DEVICE_ID_SYNOPSYS_HAPSUSB31),
	264	},
7d643664	265	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BSW), },
b62cd96d	266	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BYT), },
85601f8c	267	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_MRFLD), },
84a2b61b HK	268	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SPTLP), },
84a2b61b HK	269	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SPTH), },
b4c580a4	270	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BXT), },
1ffb4d5c	271	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BXT_M), },
b4c580a4	272	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_APL), },
4491ed50	273	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_KBP), },
8f8983a5	274	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_GLK), },
68217959 HK	275	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CNPLP), },
68217959 HK	276	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CNPH), },
9755449d	277	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_NL_USB), },
72246da4 FB	278	{ } /* Terminating Entry */
	279	};
	280	MODULE_DEVICE_TABLE(pci, dwc3_pci_id_table);
	281
36daf3aa FB	282	#if defined(CONFIG_PM) \|\| defined(CONFIG_PM_SLEEP)
	283	static int dwc3_pci_dsm(struct dwc3_pci *dwc, int param)
	284	{
	285	union acpi_object *obj;
	286	union acpi_object tmp;
	287	union acpi_object argv4 = ACPI_INIT_DSM_ARGV4(1, &tmp);
	288
	289	if (!dwc->has_dsm_for_pm)
	290	return 0;
	291
	292	tmp.type = ACPI_TYPE_INTEGER;
	293	tmp.integer.value = param;
	294
	295	obj = acpi_evaluate_dsm(ACPI_HANDLE(&dwc->pci->dev), dwc->uuid,
	296	1, PCI_INTEL_BXT_FUNC_PMU_PWR, &argv4);
	297	if (!obj) {
	298	dev_err(&dwc->pci->dev, "failed to evaluate _DSM\n");
	299	return -EIO;
	300	}
	301
	302	ACPI_FREE(obj);
	303
	304	return 0;
	305	}
	306	#endif /* CONFIG_PM \|\| CONFIG_PM_SLEEP */
	307
e9af9229 FB	308	#ifdef CONFIG_PM
	309	static int dwc3_pci_runtime_suspend(struct device *dev)
	310	{
9cecca75 FB	311	struct dwc3_pci *dwc = dev_get_drvdata(dev);
9cecca75 FB	312
e9af9229	313	if (device_run_wake(dev))
9cecca75	314	return dwc3_pci_dsm(dwc, PCI_INTEL_BXT_STATE_D3);
e9af9229 FB	315
	316	return -EBUSY;
	317	}
	318
f6c274e1 FB	319	static int dwc3_pci_runtime_resume(struct device *dev)
f6c274e1 FB	320	{
0f817ae6 FB	321	struct dwc3_pci *dwc = dev_get_drvdata(dev);
0f817ae6 FB	322	struct platform_device *dwc3 = dwc->dwc3;
9cecca75 FB	323	int ret;
	324
	325	ret = dwc3_pci_dsm(dwc, PCI_INTEL_BXT_STATE_D0);
	326	if (ret)
	327	return ret;
f6c274e1 FB	328
	329	return pm_runtime_get(&dwc3->dev);
	330	}
696118c0	331	#endif /* CONFIG_PM */
f6c274e1	332
696118c0	333	#ifdef CONFIG_PM_SLEEP
9cecca75	334	static int dwc3_pci_suspend(struct device *dev)
e9af9229	335	{
9cecca75 FB	336	struct dwc3_pci *dwc = dev_get_drvdata(dev);
	337
	338	return dwc3_pci_dsm(dwc, PCI_INTEL_BXT_STATE_D3);
	339	}
	340
	341	static int dwc3_pci_resume(struct device *dev)
	342	{
	343	struct dwc3_pci *dwc = dev_get_drvdata(dev);
	344
	345	return dwc3_pci_dsm(dwc, PCI_INTEL_BXT_STATE_D0);
e9af9229	346	}
696118c0	347	#endif /* CONFIG_PM_SLEEP */
e9af9229 FB	348
e9af9229 FB	349	static struct dev_pm_ops dwc3_pci_dev_pm_ops = {
9cecca75	350	SET_SYSTEM_SLEEP_PM_OPS(dwc3_pci_suspend, dwc3_pci_resume)
f6c274e1	351	SET_RUNTIME_PM_OPS(dwc3_pci_runtime_suspend, dwc3_pci_runtime_resume,
e9af9229 FB	352	NULL)
	353	};
	354
72246da4	355	static struct pci_driver dwc3_pci_driver = {
0949e99b	356	.name = "dwc3-pci",
72246da4 FB	357	.id_table = dwc3_pci_id_table,
72246da4 FB	358	.probe = dwc3_pci_probe,
7690417d	359	.remove = dwc3_pci_remove,
e9af9229 FB	360	.driver = {
	361	.pm = &dwc3_pci_dev_pm_ops,
	362	}
72246da4 FB	363	};
	364
	365	MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>");
5945f789	366	MODULE_LICENSE("GPL v2");
72246da4 FB	367	MODULE_DESCRIPTION("DesignWare USB3 PCI Glue Layer");
72246da4 FB	368
95656336	369	module_pci_driver(dwc3_pci_driver);