xref: /linux/drivers/usb/dwc3/dwc3-pci.c (revision 8e5248c3a8778f3e394e9a19195bc7a48f567ca2)
15fd54aceSGreg Kroah-Hartman // SPDX-License-Identifier: GPL-2.0
227088e00SAditya Srivastava /*
372246da4SFelipe Balbi  * dwc3-pci.c - PCI Specific glue layer
472246da4SFelipe Balbi  *
510623b87SAlexander A. Klimov  * Copyright (C) 2010-2011 Texas Instruments Incorporated - https://www.ti.com
672246da4SFelipe Balbi  *
772246da4SFelipe Balbi  * Authors: Felipe Balbi <balbi@ti.com>,
872246da4SFelipe Balbi  *	    Sebastian Andrzej Siewior <bigeasy@linutronix.de>
972246da4SFelipe Balbi  */
1072246da4SFelipe Balbi 
1172246da4SFelipe Balbi #include <linux/kernel.h>
1246a57283SStephen Rothwell #include <linux/module.h>
1372246da4SFelipe Balbi #include <linux/slab.h>
1472246da4SFelipe Balbi #include <linux/pci.h>
158eed00b2SManu Gautam #include <linux/workqueue.h>
16e9af9229SFelipe Balbi #include <linux/pm_runtime.h>
1772246da4SFelipe Balbi #include <linux/platform_device.h>
18a89d977cSHeikki Krogerus #include <linux/gpio/consumer.h>
195741022cSHans de Goede #include <linux/gpio/machine.h>
20a89d977cSHeikki Krogerus #include <linux/acpi.h>
21cf48305dSHeikki Krogerus #include <linux/delay.h>
228f317b47SHuang Rui 
23b62cd96dSHeikki Krogerus #define PCI_DEVICE_ID_INTEL_BYT			0x0f37
2485601f8cSDavid Cohen #define PCI_DEVICE_ID_INTEL_MRFLD		0x119e
259a5a0783SJohn Youn #define PCI_DEVICE_ID_INTEL_BSW			0x22b7
2684a2b61bSHeikki Krogerus #define PCI_DEVICE_ID_INTEL_SPTLP		0x9d30
2784a2b61bSHeikki Krogerus #define PCI_DEVICE_ID_INTEL_SPTH		0xa130
28b4c580a4SHeikki Krogerus #define PCI_DEVICE_ID_INTEL_BXT			0x0aaa
291ffb4d5cSHeikki Krogerus #define PCI_DEVICE_ID_INTEL_BXT_M		0x1aaa
30b4c580a4SHeikki Krogerus #define PCI_DEVICE_ID_INTEL_APL			0x5aaa
314491ed50SHeikki Krogerus #define PCI_DEVICE_ID_INTEL_KBP			0xa2b0
323c3caae4SHeikki Krogerus #define PCI_DEVICE_ID_INTEL_CMLLP		0x02ee
333c3caae4SHeikki Krogerus #define PCI_DEVICE_ID_INTEL_CMLH		0x06ee
348f8983a5SHeikki Krogerus #define PCI_DEVICE_ID_INTEL_GLK			0x31aa
3568217959SHeikki Krogerus #define PCI_DEVICE_ID_INTEL_CNPLP		0x9dee
3668217959SHeikki Krogerus #define PCI_DEVICE_ID_INTEL_CNPH		0xa36e
37f5ae8869SHeikki Krogerus #define PCI_DEVICE_ID_INTEL_CNPV		0xa3b0
3800908693SHeikki Krogerus #define PCI_DEVICE_ID_INTEL_ICLLP		0x34ee
39457d2285SRaymond Tan #define PCI_DEVICE_ID_INTEL_EHL			0x4b7e
40b3649deeSFelipe Balbi #define PCI_DEVICE_ID_INTEL_TGPLP		0xa0ee
41c3f595a8SHeikki Krogerus #define PCI_DEVICE_ID_INTEL_TGPH		0x43ee
42e25d1e85SHeikki Krogerus #define PCI_DEVICE_ID_INTEL_JSP			0x4dee
4393440d1fSShruthi Sanil #define PCI_DEVICE_ID_INTEL_ADL			0x460e
44ff2d2beeSShruthi Sanil #define PCI_DEVICE_ID_INTEL_ADL_PCH		0x51ee
45ff2d2beeSShruthi Sanil #define PCI_DEVICE_ID_INTEL_ADLN		0x465e
46ff2d2beeSShruthi Sanil #define PCI_DEVICE_ID_INTEL_ADLN_PCH		0x54ee
471384ab4fSHeikki Krogerus #define PCI_DEVICE_ID_INTEL_ADLS		0x7ae1
48f05f80f2SShruthi Sanil #define PCI_DEVICE_ID_INTEL_RPL			0xa70e
49038438a2SHeikki Krogerus #define PCI_DEVICE_ID_INTEL_RPLS		0x7a61
50*8e5248c3SHeikki Krogerus #define PCI_DEVICE_ID_INTEL_MTLM		0x7eb1
51973e0f7aSHeikki Krogerus #define PCI_DEVICE_ID_INTEL_MTLP		0x7ec1
52973e0f7aSHeikki Krogerus #define PCI_DEVICE_ID_INTEL_MTL			0x7e7e
5373203bdeSHeikki Krogerus #define PCI_DEVICE_ID_INTEL_TGL			0x9a15
541abade64SNehal Bakulchandra Shah #define PCI_DEVICE_ID_AMD_MR			0x163a
5572246da4SFelipe Balbi 
5694116f81SAndy Shevchenko #define PCI_INTEL_BXT_DSM_GUID		"732b85d5-b7a7-4a1b-9ba0-4bbd00ffd511"
579cecca75SFelipe Balbi #define PCI_INTEL_BXT_FUNC_PMU_PWR	4
589cecca75SFelipe Balbi #define PCI_INTEL_BXT_STATE_D0		0
599cecca75SFelipe Balbi #define PCI_INTEL_BXT_STATE_D3		3
609cecca75SFelipe Balbi 
617740d04dSHans de Goede #define GP_RWBAR			1
627740d04dSHans de Goede #define GP_RWREG1			0xa0
637740d04dSHans de Goede #define GP_RWREG1_ULPI_REFCLK_DISABLE	(1 << 17)
647740d04dSHans de Goede 
650f817ae6SFelipe Balbi /**
660f817ae6SFelipe Balbi  * struct dwc3_pci - Driver private structure
670f817ae6SFelipe Balbi  * @dwc3: child dwc3 platform_device
680f817ae6SFelipe Balbi  * @pci: our link to PCI bus
6994116f81SAndy Shevchenko  * @guid: _DSM GUID
709cecca75SFelipe Balbi  * @has_dsm_for_pm: true for devices which need to run _DSM on runtime PM
7187d852deSAndy Shevchenko  * @wakeup_work: work for asynchronous resume
720f817ae6SFelipe Balbi  */
730f817ae6SFelipe Balbi struct dwc3_pci {
740f817ae6SFelipe Balbi 	struct platform_device *dwc3;
750f817ae6SFelipe Balbi 	struct pci_dev *pci;
769cecca75SFelipe Balbi 
7794116f81SAndy Shevchenko 	guid_t guid;
789cecca75SFelipe Balbi 
799cecca75SFelipe Balbi 	unsigned int has_dsm_for_pm:1;
808eed00b2SManu Gautam 	struct work_struct wakeup_work;
810f817ae6SFelipe Balbi };
820f817ae6SFelipe Balbi 
83a89d977cSHeikki Krogerus static const struct acpi_gpio_params reset_gpios = { 0, 0, false };
84a89d977cSHeikki Krogerus static const struct acpi_gpio_params cs_gpios = { 1, 0, false };
85a89d977cSHeikki Krogerus 
86a89d977cSHeikki Krogerus static const struct acpi_gpio_mapping acpi_dwc3_byt_gpios[] = {
87a89d977cSHeikki Krogerus 	{ "reset-gpios", &reset_gpios, 1 },
88a89d977cSHeikki Krogerus 	{ "cs-gpios", &cs_gpios, 1 },
89a89d977cSHeikki Krogerus 	{ },
90a89d977cSHeikki Krogerus };
91a89d977cSHeikki Krogerus 
925741022cSHans de Goede static struct gpiod_lookup_table platform_bytcr_gpios = {
935741022cSHans de Goede 	.dev_id		= "0000:00:16.0",
945741022cSHans de Goede 	.table		= {
9562e3f0afSHans de Goede 		GPIO_LOOKUP("INT33FC:00", 54, "cs", GPIO_ACTIVE_HIGH),
9662e3f0afSHans de Goede 		GPIO_LOOKUP("INT33FC:02", 14, "reset", GPIO_ACTIVE_HIGH),
975741022cSHans de Goede 		{}
985741022cSHans de Goede 	},
995741022cSHans de Goede };
1005741022cSHans de Goede 
1017740d04dSHans de Goede static int dwc3_byt_enable_ulpi_refclock(struct pci_dev *pci)
1027740d04dSHans de Goede {
1037740d04dSHans de Goede 	void __iomem	*reg;
1047740d04dSHans de Goede 	u32		value;
1057740d04dSHans de Goede 
1067740d04dSHans de Goede 	reg = pcim_iomap(pci, GP_RWBAR, 0);
107b497fff6SWei Yongjun 	if (!reg)
108b497fff6SWei Yongjun 		return -ENOMEM;
1097740d04dSHans de Goede 
1107740d04dSHans de Goede 	value = readl(reg + GP_RWREG1);
1117740d04dSHans de Goede 	if (!(value & GP_RWREG1_ULPI_REFCLK_DISABLE))
1127740d04dSHans de Goede 		goto unmap; /* ULPI refclk already enabled */
1137740d04dSHans de Goede 
1147740d04dSHans de Goede 	value &= ~GP_RWREG1_ULPI_REFCLK_DISABLE;
1157740d04dSHans de Goede 	writel(value, reg + GP_RWREG1);
1167740d04dSHans de Goede 	/* This comes from the Intel Android x86 tree w/o any explanation */
1177740d04dSHans de Goede 	msleep(100);
1187740d04dSHans de Goede unmap:
1197740d04dSHans de Goede 	pcim_iounmap(pci, reg);
1207740d04dSHans de Goede 	return 0;
1217740d04dSHans de Goede }
1227740d04dSHans de Goede 
1231a7b12f6SAndy Shevchenko static const struct property_entry dwc3_pci_intel_properties[] = {
1241a7b12f6SAndy Shevchenko 	PROPERTY_ENTRY_STRING("dr_mode", "peripheral"),
1251a7b12f6SAndy Shevchenko 	PROPERTY_ENTRY_BOOL("linux,sysdev_is_parent"),
1261a7b12f6SAndy Shevchenko 	{}
1271a7b12f6SAndy Shevchenko };
1280f817ae6SFelipe Balbi 
129582ab24eSHans de Goede static const struct property_entry dwc3_pci_intel_phy_charger_detect_properties[] = {
130582ab24eSHans de Goede 	PROPERTY_ENTRY_STRING("dr_mode", "peripheral"),
131582ab24eSHans de Goede 	PROPERTY_ENTRY_BOOL("snps,dis_u2_susphy_quirk"),
132582ab24eSHans de Goede 	PROPERTY_ENTRY_BOOL("linux,phy_charger_detect"),
1337ddda261SStephan Gerhold 	PROPERTY_ENTRY_BOOL("linux,sysdev_is_parent"),
134ca9400efSGreg Kroah-Hartman 	{}
135ca9400efSGreg Kroah-Hartman };
136ca9400efSGreg Kroah-Hartman 
137d7c93a90SHans de Goede static const struct property_entry dwc3_pci_intel_byt_properties[] = {
138d7c93a90SHans de Goede 	PROPERTY_ENTRY_STRING("dr_mode", "peripheral"),
139d7c93a90SHans de Goede 	PROPERTY_ENTRY_BOOL("snps,dis_u2_susphy_quirk"),
140582ab24eSHans de Goede 	PROPERTY_ENTRY_BOOL("linux,sysdev_is_parent"),
141582ab24eSHans de Goede 	{}
142582ab24eSHans de Goede };
143582ab24eSHans de Goede 
144c31d983bSAndy Shevchenko static const struct property_entry dwc3_pci_mrfld_properties[] = {
145c31d983bSAndy Shevchenko 	PROPERTY_ENTRY_STRING("dr_mode", "otg"),
146066c0959SAndy Shevchenko 	PROPERTY_ENTRY_STRING("linux,extcon-name", "mrfld_bcove_pwrsrc"),
147b522f830SAndy Shevchenko 	PROPERTY_ENTRY_BOOL("snps,dis_u3_susphy_quirk"),
148b522f830SAndy Shevchenko 	PROPERTY_ENTRY_BOOL("snps,dis_u2_susphy_quirk"),
14904357fafSFerry Toth 	PROPERTY_ENTRY_BOOL("snps,usb2-gadget-lpm-disable"),
150c31d983bSAndy Shevchenko 	PROPERTY_ENTRY_BOOL("linux,sysdev_is_parent"),
151c31d983bSAndy Shevchenko 	{}
152c31d983bSAndy Shevchenko };
153c31d983bSAndy Shevchenko 
1541a7b12f6SAndy Shevchenko static const struct property_entry dwc3_pci_amd_properties[] = {
155cf48305dSHeikki Krogerus 	PROPERTY_ENTRY_BOOL("snps,has-lpm-erratum"),
156cf48305dSHeikki Krogerus 	PROPERTY_ENTRY_U8("snps,lpm-nyet-threshold", 0xf),
157cf48305dSHeikki Krogerus 	PROPERTY_ENTRY_BOOL("snps,u2exit_lfps_quirk"),
158cf48305dSHeikki Krogerus 	PROPERTY_ENTRY_BOOL("snps,u2ss_inp3_quirk"),
159cf48305dSHeikki Krogerus 	PROPERTY_ENTRY_BOOL("snps,req_p1p2p3_quirk"),
160cf48305dSHeikki Krogerus 	PROPERTY_ENTRY_BOOL("snps,del_p1p2p3_quirk"),
161cf48305dSHeikki Krogerus 	PROPERTY_ENTRY_BOOL("snps,del_phy_power_chg_quirk"),
162cf48305dSHeikki Krogerus 	PROPERTY_ENTRY_BOOL("snps,lfps_filter_quirk"),
163cf48305dSHeikki Krogerus 	PROPERTY_ENTRY_BOOL("snps,rx_detect_poll_quirk"),
164cf48305dSHeikki Krogerus 	PROPERTY_ENTRY_BOOL("snps,tx_de_emphasis_quirk"),
165cf48305dSHeikki Krogerus 	PROPERTY_ENTRY_U8("snps,tx_de_emphasis", 1),
1661a7b12f6SAndy Shevchenko 	/* FIXME these quirks should be removed when AMD NL tapes out */
167cf48305dSHeikki Krogerus 	PROPERTY_ENTRY_BOOL("snps,disable_scramble_quirk"),
168cf48305dSHeikki Krogerus 	PROPERTY_ENTRY_BOOL("snps,dis_u3_susphy_quirk"),
169cf48305dSHeikki Krogerus 	PROPERTY_ENTRY_BOOL("snps,dis_u2_susphy_quirk"),
1700eae2fdeSJohn Youn 	PROPERTY_ENTRY_BOOL("linux,sysdev_is_parent"),
171e6fe66feSFelipe Balbi 	{}
172e6fe66feSFelipe Balbi };
173e6fe66feSFelipe Balbi 
1741abade64SNehal Bakulchandra Shah static const struct property_entry dwc3_pci_mr_properties[] = {
1751abade64SNehal Bakulchandra Shah 	PROPERTY_ENTRY_STRING("dr_mode", "otg"),
1761abade64SNehal Bakulchandra Shah 	PROPERTY_ENTRY_BOOL("usb-role-switch"),
1771abade64SNehal Bakulchandra Shah 	PROPERTY_ENTRY_STRING("role-switch-default-mode", "host"),
1781abade64SNehal Bakulchandra Shah 	PROPERTY_ENTRY_BOOL("linux,sysdev_is_parent"),
1791abade64SNehal Bakulchandra Shah 	{}
1801abade64SNehal Bakulchandra Shah };
1811abade64SNehal Bakulchandra Shah 
182e492ce9bSHeikki Krogerus static const struct software_node dwc3_pci_intel_swnode = {
183e492ce9bSHeikki Krogerus 	.properties = dwc3_pci_intel_properties,
184e492ce9bSHeikki Krogerus };
185e492ce9bSHeikki Krogerus 
186582ab24eSHans de Goede static const struct software_node dwc3_pci_intel_phy_charger_detect_swnode = {
187582ab24eSHans de Goede 	.properties = dwc3_pci_intel_phy_charger_detect_properties,
188582ab24eSHans de Goede };
189582ab24eSHans de Goede 
190d7c93a90SHans de Goede static const struct software_node dwc3_pci_intel_byt_swnode = {
191d7c93a90SHans de Goede 	.properties = dwc3_pci_intel_byt_properties,
192d7c93a90SHans de Goede };
193d7c93a90SHans de Goede 
194e492ce9bSHeikki Krogerus static const struct software_node dwc3_pci_intel_mrfld_swnode = {
195e492ce9bSHeikki Krogerus 	.properties = dwc3_pci_mrfld_properties,
196e492ce9bSHeikki Krogerus };
197e492ce9bSHeikki Krogerus 
198e492ce9bSHeikki Krogerus static const struct software_node dwc3_pci_amd_swnode = {
199e492ce9bSHeikki Krogerus 	.properties = dwc3_pci_amd_properties,
200e492ce9bSHeikki Krogerus };
201e492ce9bSHeikki Krogerus 
2021abade64SNehal Bakulchandra Shah static const struct software_node dwc3_pci_amd_mr_swnode = {
2031abade64SNehal Bakulchandra Shah 	.properties = dwc3_pci_mr_properties,
2041abade64SNehal Bakulchandra Shah };
2051abade64SNehal Bakulchandra Shah 
206e285cb40SHans de Goede static int dwc3_pci_quirks(struct dwc3_pci *dwc,
207e285cb40SHans de Goede 			   const struct software_node *swnode)
2081a7b12f6SAndy Shevchenko {
2091a7b12f6SAndy Shevchenko 	struct pci_dev			*pdev = dwc->pci;
210e6fe66feSFelipe Balbi 
2111a7b12f6SAndy Shevchenko 	if (pdev->vendor == PCI_VENDOR_ID_INTEL) {
2129cecca75SFelipe Balbi 		if (pdev->device == PCI_DEVICE_ID_INTEL_BXT ||
213a609ce2aSRaymond Tan 		    pdev->device == PCI_DEVICE_ID_INTEL_BXT_M ||
214457d2285SRaymond Tan 		    pdev->device == PCI_DEVICE_ID_INTEL_EHL) {
21594116f81SAndy Shevchenko 			guid_parse(PCI_INTEL_BXT_DSM_GUID, &dwc->guid);
2169cecca75SFelipe Balbi 			dwc->has_dsm_for_pm = true;
2179cecca75SFelipe Balbi 		}
2189cecca75SFelipe Balbi 
219e6fe66feSFelipe Balbi 		if (pdev->device == PCI_DEVICE_ID_INTEL_BYT) {
220a89d977cSHeikki Krogerus 			struct gpio_desc *gpio;
2211a7b12f6SAndy Shevchenko 			int ret;
222a89d977cSHeikki Krogerus 
2237740d04dSHans de Goede 			/* On BYT the FW does not always enable the refclock */
2247740d04dSHans de Goede 			ret = dwc3_byt_enable_ulpi_refclock(pdev);
2257740d04dSHans de Goede 			if (ret)
2267740d04dSHans de Goede 				return ret;
2277740d04dSHans de Goede 
2284a56e413SAndy Shevchenko 			ret = devm_acpi_dev_add_driver_gpios(&pdev->dev,
229a89d977cSHeikki Krogerus 					acpi_dwc3_byt_gpios);
2304a56e413SAndy Shevchenko 			if (ret)
2314a56e413SAndy Shevchenko 				dev_dbg(&pdev->dev, "failed to add mapping table\n");
232a89d977cSHeikki Krogerus 
2332df033caSUwe Kleine-König 			/*
2345741022cSHans de Goede 			 * A lot of BYT devices lack ACPI resource entries for
2355741022cSHans de Goede 			 * the GPIOs, add a fallback mapping to the reference
2365741022cSHans de Goede 			 * design GPIOs which all boards seem to use.
2375741022cSHans de Goede 			 */
2385741022cSHans de Goede 			gpiod_add_lookup_table(&platform_bytcr_gpios);
2395741022cSHans de Goede 
2405741022cSHans de Goede 			/*
2412df033caSUwe Kleine-König 			 * These GPIOs will turn on the USB2 PHY. Note that we have to
2422df033caSUwe Kleine-König 			 * put the gpio descriptors again here because the phy driver
2432df033caSUwe Kleine-König 			 * might want to grab them, too.
2442df033caSUwe Kleine-König 			 */
2453004cfd6SStephan Gerhold 			gpio = gpiod_get_optional(&pdev->dev, "cs", GPIOD_OUT_LOW);
2462df033caSUwe Kleine-König 			if (IS_ERR(gpio))
2472df033caSUwe Kleine-König 				return PTR_ERR(gpio);
2482df033caSUwe Kleine-König 
249a89d977cSHeikki Krogerus 			gpiod_set_value_cansleep(gpio, 1);
2503004cfd6SStephan Gerhold 			gpiod_put(gpio);
251a89d977cSHeikki Krogerus 
2523004cfd6SStephan Gerhold 			gpio = gpiod_get_optional(&pdev->dev, "reset", GPIOD_OUT_LOW);
2532df033caSUwe Kleine-König 			if (IS_ERR(gpio))
2542df033caSUwe Kleine-König 				return PTR_ERR(gpio);
2552df033caSUwe Kleine-König 
2562df033caSUwe Kleine-König 			if (gpio) {
257a89d977cSHeikki Krogerus 				gpiod_set_value_cansleep(gpio, 1);
2583004cfd6SStephan Gerhold 				gpiod_put(gpio);
259a89d977cSHeikki Krogerus 				usleep_range(10000, 11000);
260a89d977cSHeikki Krogerus 			}
261582ab24eSHans de Goede 
262582ab24eSHans de Goede 			/*
263a5d847b0SHans de Goede 			 * Make the pdev name predictable (only 1 DWC3 on BYT)
264a5d847b0SHans de Goede 			 * and patch the phy dev-name into the lookup table so
265a5d847b0SHans de Goede 			 * that the phy-driver can get the GPIOs.
266a5d847b0SHans de Goede 			 */
267a5d847b0SHans de Goede 			dwc->dwc3->id = PLATFORM_DEVID_NONE;
268a5d847b0SHans de Goede 			platform_bytcr_gpios.dev_id = "dwc3.ulpi";
269a5d847b0SHans de Goede 
270a5d847b0SHans de Goede 			/*
271582ab24eSHans de Goede 			 * Some Android tablets with a Crystal Cove PMIC
272582ab24eSHans de Goede 			 * (INT33FD), rely on the TUSB1211 phy for charger
273582ab24eSHans de Goede 			 * detection. These can be identified by them _not_
274582ab24eSHans de Goede 			 * using the standard ACPI battery and ac drivers.
275582ab24eSHans de Goede 			 */
276582ab24eSHans de Goede 			if (acpi_dev_present("INT33FD", "1", 2) &&
277582ab24eSHans de Goede 			    acpi_quirk_skip_acpi_ac_and_battery()) {
278582ab24eSHans de Goede 				dev_info(&pdev->dev, "Using TUSB1211 phy for charger detection\n");
279582ab24eSHans de Goede 				swnode = &dwc3_pci_intel_phy_charger_detect_swnode;
280582ab24eSHans de Goede 			}
281a89d977cSHeikki Krogerus 		}
282e6fe66feSFelipe Balbi 	}
283a89d977cSHeikki Krogerus 
284e285cb40SHans de Goede 	return device_add_software_node(&dwc->dwc3->dev, swnode);
2852cd9ddf7SHeikki Krogerus }
28672246da4SFelipe Balbi 
2878eed00b2SManu Gautam #ifdef CONFIG_PM
2888eed00b2SManu Gautam static void dwc3_pci_resume_work(struct work_struct *work)
2898eed00b2SManu Gautam {
2908eed00b2SManu Gautam 	struct dwc3_pci *dwc = container_of(work, struct dwc3_pci, wakeup_work);
2918eed00b2SManu Gautam 	struct platform_device *dwc3 = dwc->dwc3;
2928eed00b2SManu Gautam 	int ret;
2938eed00b2SManu Gautam 
2948eed00b2SManu Gautam 	ret = pm_runtime_get_sync(&dwc3->dev);
295a03e2ddaSZheng Yongjun 	if (ret < 0) {
2962655971aSAditya Pakki 		pm_runtime_put_sync_autosuspend(&dwc3->dev);
2978eed00b2SManu Gautam 		return;
2982655971aSAditya Pakki 	}
2998eed00b2SManu Gautam 
3008eed00b2SManu Gautam 	pm_runtime_mark_last_busy(&dwc3->dev);
3018eed00b2SManu Gautam 	pm_runtime_put_sync_autosuspend(&dwc3->dev);
3028eed00b2SManu Gautam }
3038eed00b2SManu Gautam #endif
3048eed00b2SManu Gautam 
3051a7b12f6SAndy Shevchenko static int dwc3_pci_probe(struct pci_dev *pci, const struct pci_device_id *id)
30672246da4SFelipe Balbi {
3070f817ae6SFelipe Balbi 	struct dwc3_pci		*dwc;
30872246da4SFelipe Balbi 	struct resource		res[2];
309b09e99eeSAndy Shevchenko 	int			ret;
310802ca850SChanho Park 	struct device		*dev = &pci->dev;
31172246da4SFelipe Balbi 
312f1c7e710SAndy Shevchenko 	ret = pcim_enable_device(pci);
31372246da4SFelipe Balbi 	if (ret) {
314802ca850SChanho Park 		dev_err(dev, "failed to enable pci device\n");
315802ca850SChanho Park 		return -ENODEV;
31672246da4SFelipe Balbi 	}
31772246da4SFelipe Balbi 
31872246da4SFelipe Balbi 	pci_set_master(pci);
31972246da4SFelipe Balbi 
3200f817ae6SFelipe Balbi 	dwc = devm_kzalloc(dev, sizeof(*dwc), GFP_KERNEL);
3210f817ae6SFelipe Balbi 	if (!dwc)
322f1c7e710SAndy Shevchenko 		return -ENOMEM;
3230f817ae6SFelipe Balbi 
3240f817ae6SFelipe Balbi 	dwc->dwc3 = platform_device_alloc("dwc3", PLATFORM_DEVID_AUTO);
3250f817ae6SFelipe Balbi 	if (!dwc->dwc3)
3260f817ae6SFelipe Balbi 		return -ENOMEM;
32772246da4SFelipe Balbi 
32872246da4SFelipe Balbi 	memset(res, 0x00, sizeof(struct resource) * ARRAY_SIZE(res));
32972246da4SFelipe Balbi 
33072246da4SFelipe Balbi 	res[0].start	= pci_resource_start(pci, 0);
33172246da4SFelipe Balbi 	res[0].end	= pci_resource_end(pci, 0);
33272246da4SFelipe Balbi 	res[0].name	= "dwc_usb3";
33372246da4SFelipe Balbi 	res[0].flags	= IORESOURCE_MEM;
33472246da4SFelipe Balbi 
33572246da4SFelipe Balbi 	res[1].start	= pci->irq;
33672246da4SFelipe Balbi 	res[1].name	= "dwc_usb3";
33772246da4SFelipe Balbi 	res[1].flags	= IORESOURCE_IRQ;
33872246da4SFelipe Balbi 
3390f817ae6SFelipe Balbi 	ret = platform_device_add_resources(dwc->dwc3, res, ARRAY_SIZE(res));
34072246da4SFelipe Balbi 	if (ret) {
341802ca850SChanho Park 		dev_err(dev, "couldn't add resources to dwc3 device\n");
342cabdf83dSThinh Nguyen 		goto err;
34372246da4SFelipe Balbi 	}
34472246da4SFelipe Balbi 
3450f817ae6SFelipe Balbi 	dwc->pci = pci;
3460f817ae6SFelipe Balbi 	dwc->dwc3->dev.parent = dev;
3470f817ae6SFelipe Balbi 	ACPI_COMPANION_SET(&dwc->dwc3->dev, ACPI_COMPANION(dev));
34872246da4SFelipe Balbi 
349e285cb40SHans de Goede 	ret = dwc3_pci_quirks(dwc, (void *)id->driver_data);
350474799f0SHeikki Krogerus 	if (ret)
351474799f0SHeikki Krogerus 		goto err;
352474799f0SHeikki Krogerus 
3530f817ae6SFelipe Balbi 	ret = platform_device_add(dwc->dwc3);
35472246da4SFelipe Balbi 	if (ret) {
355802ca850SChanho Park 		dev_err(dev, "failed to register dwc3 device\n");
3562cd9ddf7SHeikki Krogerus 		goto err;
35772246da4SFelipe Balbi 	}
35872246da4SFelipe Balbi 
359e9af9229SFelipe Balbi 	device_init_wakeup(dev, true);
3600f817ae6SFelipe Balbi 	pci_set_drvdata(pci, dwc);
361e9af9229SFelipe Balbi 	pm_runtime_put(dev);
3628eed00b2SManu Gautam #ifdef CONFIG_PM
3638eed00b2SManu Gautam 	INIT_WORK(&dwc->wakeup_work, dwc3_pci_resume_work);
3648eed00b2SManu Gautam #endif
365e9af9229SFelipe Balbi 
36672246da4SFelipe Balbi 	return 0;
3672cd9ddf7SHeikki Krogerus err:
368e492ce9bSHeikki Krogerus 	device_remove_software_node(&dwc->dwc3->dev);
3690f817ae6SFelipe Balbi 	platform_device_put(dwc->dwc3);
37072246da4SFelipe Balbi 	return ret;
37172246da4SFelipe Balbi }
37272246da4SFelipe Balbi 
373fb4e98abSBill Pemberton static void dwc3_pci_remove(struct pci_dev *pci)
37472246da4SFelipe Balbi {
3750f817ae6SFelipe Balbi 	struct dwc3_pci		*dwc = pci_get_drvdata(pci);
3767b412b04SKuppuswamy Sathyanarayanan 	struct pci_dev		*pdev = dwc->pci;
3770f817ae6SFelipe Balbi 
3787b412b04SKuppuswamy Sathyanarayanan 	if (pdev->device == PCI_DEVICE_ID_INTEL_BYT)
3795741022cSHans de Goede 		gpiod_remove_lookup_table(&platform_bytcr_gpios);
3808eed00b2SManu Gautam #ifdef CONFIG_PM
3818eed00b2SManu Gautam 	cancel_work_sync(&dwc->wakeup_work);
3828eed00b2SManu Gautam #endif
383e9af9229SFelipe Balbi 	device_init_wakeup(&pci->dev, false);
384e9af9229SFelipe Balbi 	pm_runtime_get(&pci->dev);
385e492ce9bSHeikki Krogerus 	device_remove_software_node(&dwc->dwc3->dev);
3860f817ae6SFelipe Balbi 	platform_device_unregister(dwc->dwc3);
38772246da4SFelipe Balbi }
38872246da4SFelipe Balbi 
389782df20cSJingoo Han static const struct pci_device_id dwc3_pci_id_table[] = {
3901a7b12f6SAndy Shevchenko 	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_BSW),
391e492ce9bSHeikki Krogerus 	  (kernel_ulong_t) &dwc3_pci_intel_swnode, },
3921a7b12f6SAndy Shevchenko 
3931a7b12f6SAndy Shevchenko 	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_BYT),
394d7c93a90SHans de Goede 	  (kernel_ulong_t) &dwc3_pci_intel_byt_swnode, },
3951a7b12f6SAndy Shevchenko 
3961a7b12f6SAndy Shevchenko 	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_MRFLD),
397e492ce9bSHeikki Krogerus 	  (kernel_ulong_t) &dwc3_pci_intel_mrfld_swnode, },
3981a7b12f6SAndy Shevchenko 
3993c3caae4SHeikki Krogerus 	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_CMLLP),
400e492ce9bSHeikki Krogerus 	  (kernel_ulong_t) &dwc3_pci_intel_swnode, },
4013c3caae4SHeikki Krogerus 
4027ae622c9SFelipe Balbi 	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_CMLH),
403e492ce9bSHeikki Krogerus 	  (kernel_ulong_t) &dwc3_pci_intel_swnode, },
4047ae622c9SFelipe Balbi 
4051a7b12f6SAndy Shevchenko 	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_SPTLP),
406e492ce9bSHeikki Krogerus 	  (kernel_ulong_t) &dwc3_pci_intel_swnode, },
4071a7b12f6SAndy Shevchenko 
4081a7b12f6SAndy Shevchenko 	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_SPTH),
409e492ce9bSHeikki Krogerus 	  (kernel_ulong_t) &dwc3_pci_intel_swnode, },
4101a7b12f6SAndy Shevchenko 
4111a7b12f6SAndy Shevchenko 	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_BXT),
412e492ce9bSHeikki Krogerus 	  (kernel_ulong_t) &dwc3_pci_intel_swnode, },
4131a7b12f6SAndy Shevchenko 
4141a7b12f6SAndy Shevchenko 	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_BXT_M),
415e492ce9bSHeikki Krogerus 	  (kernel_ulong_t) &dwc3_pci_intel_swnode, },
4161a7b12f6SAndy Shevchenko 
4171a7b12f6SAndy Shevchenko 	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_APL),
418e492ce9bSHeikki Krogerus 	  (kernel_ulong_t) &dwc3_pci_intel_swnode, },
4191a7b12f6SAndy Shevchenko 
4201a7b12f6SAndy Shevchenko 	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_KBP),
421e492ce9bSHeikki Krogerus 	  (kernel_ulong_t) &dwc3_pci_intel_swnode, },
4221a7b12f6SAndy Shevchenko 
4231a7b12f6SAndy Shevchenko 	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_GLK),
424e492ce9bSHeikki Krogerus 	  (kernel_ulong_t) &dwc3_pci_intel_swnode, },
4251a7b12f6SAndy Shevchenko 
4261a7b12f6SAndy Shevchenko 	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_CNPLP),
427e492ce9bSHeikki Krogerus 	  (kernel_ulong_t) &dwc3_pci_intel_swnode, },
4281a7b12f6SAndy Shevchenko 
4291a7b12f6SAndy Shevchenko 	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_CNPH),
430e492ce9bSHeikki Krogerus 	  (kernel_ulong_t) &dwc3_pci_intel_swnode, },
4311a7b12f6SAndy Shevchenko 
432f5ae8869SHeikki Krogerus 	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_CNPV),
433e492ce9bSHeikki Krogerus 	  (kernel_ulong_t) &dwc3_pci_intel_swnode, },
434f5ae8869SHeikki Krogerus 
4351a7b12f6SAndy Shevchenko 	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ICLLP),
436e492ce9bSHeikki Krogerus 	  (kernel_ulong_t) &dwc3_pci_intel_swnode, },
4371a7b12f6SAndy Shevchenko 
438457d2285SRaymond Tan 	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_EHL),
439457d2285SRaymond Tan 	  (kernel_ulong_t) &dwc3_pci_intel_swnode, },
440dbb0569dSFelipe Balbi 
441b3649deeSFelipe Balbi 	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_TGPLP),
442e492ce9bSHeikki Krogerus 	  (kernel_ulong_t) &dwc3_pci_intel_swnode, },
443b3649deeSFelipe Balbi 
444c3f595a8SHeikki Krogerus 	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_TGPH),
445e492ce9bSHeikki Krogerus 	  (kernel_ulong_t) &dwc3_pci_intel_swnode, },
446c3f595a8SHeikki Krogerus 
447e25d1e85SHeikki Krogerus 	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_JSP),
448e492ce9bSHeikki Krogerus 	  (kernel_ulong_t) &dwc3_pci_intel_swnode, },
449e25d1e85SHeikki Krogerus 
45093440d1fSShruthi Sanil 	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ADL),
45193440d1fSShruthi Sanil 	  (kernel_ulong_t) &dwc3_pci_intel_swnode, },
45293440d1fSShruthi Sanil 
453ff2d2beeSShruthi Sanil 	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ADL_PCH),
454ecb0a2f1SShruthi Sanil 	  (kernel_ulong_t) &dwc3_pci_intel_swnode, },
455ecb0a2f1SShruthi Sanil 
456ff2d2beeSShruthi Sanil 	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ADLN),
457f08fc2c3SHeikki Krogerus 	  (kernel_ulong_t) &dwc3_pci_intel_swnode, },
458f08fc2c3SHeikki Krogerus 
459ff2d2beeSShruthi Sanil 	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ADLN_PCH),
460782de5e7SHeikki Krogerus 	  (kernel_ulong_t) &dwc3_pci_intel_swnode, },
461782de5e7SHeikki Krogerus 
4621384ab4fSHeikki Krogerus 	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ADLS),
463e492ce9bSHeikki Krogerus 	  (kernel_ulong_t) &dwc3_pci_intel_swnode, },
4641384ab4fSHeikki Krogerus 
465bad0d1d7SHeikki Krogerus 	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_RPL),
466bad0d1d7SHeikki Krogerus 	  (kernel_ulong_t) &dwc3_pci_intel_swnode, },
467bad0d1d7SHeikki Krogerus 
468038438a2SHeikki Krogerus 	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_RPLS),
469038438a2SHeikki Krogerus 	  (kernel_ulong_t) &dwc3_pci_intel_swnode, },
470038438a2SHeikki Krogerus 
471*8e5248c3SHeikki Krogerus 	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_MTLM),
472*8e5248c3SHeikki Krogerus 	  (kernel_ulong_t) &dwc3_pci_intel_swnode, },
473*8e5248c3SHeikki Krogerus 
474973e0f7aSHeikki Krogerus 	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_MTLP),
475973e0f7aSHeikki Krogerus 	  (kernel_ulong_t) &dwc3_pci_intel_swnode, },
476973e0f7aSHeikki Krogerus 
477973e0f7aSHeikki Krogerus 	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_MTL),
478973e0f7aSHeikki Krogerus 	  (kernel_ulong_t) &dwc3_pci_intel_swnode, },
479973e0f7aSHeikki Krogerus 
48073203bdeSHeikki Krogerus 	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_TGL),
48173203bdeSHeikki Krogerus 	  (kernel_ulong_t) &dwc3_pci_intel_swnode, },
48273203bdeSHeikki Krogerus 
4831a7b12f6SAndy Shevchenko 	{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_NL_USB),
484e492ce9bSHeikki Krogerus 	  (kernel_ulong_t) &dwc3_pci_amd_swnode, },
4851abade64SNehal Bakulchandra Shah 
4861abade64SNehal Bakulchandra Shah 	{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_MR),
4871abade64SNehal Bakulchandra Shah 	  (kernel_ulong_t)&dwc3_pci_amd_mr_swnode, },
4881abade64SNehal Bakulchandra Shah 
48972246da4SFelipe Balbi 	{  }	/* Terminating Entry */
49072246da4SFelipe Balbi };
49172246da4SFelipe Balbi MODULE_DEVICE_TABLE(pci, dwc3_pci_id_table);
49272246da4SFelipe Balbi 
49336daf3aaSFelipe Balbi #if defined(CONFIG_PM) || defined(CONFIG_PM_SLEEP)
49436daf3aaSFelipe Balbi static int dwc3_pci_dsm(struct dwc3_pci *dwc, int param)
49536daf3aaSFelipe Balbi {
49636daf3aaSFelipe Balbi 	union acpi_object *obj;
49736daf3aaSFelipe Balbi 	union acpi_object tmp;
49836daf3aaSFelipe Balbi 	union acpi_object argv4 = ACPI_INIT_DSM_ARGV4(1, &tmp);
49936daf3aaSFelipe Balbi 
50036daf3aaSFelipe Balbi 	if (!dwc->has_dsm_for_pm)
50136daf3aaSFelipe Balbi 		return 0;
50236daf3aaSFelipe Balbi 
50336daf3aaSFelipe Balbi 	tmp.type = ACPI_TYPE_INTEGER;
50436daf3aaSFelipe Balbi 	tmp.integer.value = param;
50536daf3aaSFelipe Balbi 
50694116f81SAndy Shevchenko 	obj = acpi_evaluate_dsm(ACPI_HANDLE(&dwc->pci->dev), &dwc->guid,
50736daf3aaSFelipe Balbi 			1, PCI_INTEL_BXT_FUNC_PMU_PWR, &argv4);
50836daf3aaSFelipe Balbi 	if (!obj) {
50936daf3aaSFelipe Balbi 		dev_err(&dwc->pci->dev, "failed to evaluate _DSM\n");
51036daf3aaSFelipe Balbi 		return -EIO;
51136daf3aaSFelipe Balbi 	}
51236daf3aaSFelipe Balbi 
51336daf3aaSFelipe Balbi 	ACPI_FREE(obj);
51436daf3aaSFelipe Balbi 
51536daf3aaSFelipe Balbi 	return 0;
51636daf3aaSFelipe Balbi }
51736daf3aaSFelipe Balbi #endif /* CONFIG_PM || CONFIG_PM_SLEEP */
51836daf3aaSFelipe Balbi 
519e9af9229SFelipe Balbi #ifdef CONFIG_PM
520e9af9229SFelipe Balbi static int dwc3_pci_runtime_suspend(struct device *dev)
521e9af9229SFelipe Balbi {
5229cecca75SFelipe Balbi 	struct dwc3_pci		*dwc = dev_get_drvdata(dev);
5239cecca75SFelipe Balbi 
524de3ef1ebSRafael J. Wysocki 	if (device_can_wakeup(dev))
5259cecca75SFelipe Balbi 		return dwc3_pci_dsm(dwc, PCI_INTEL_BXT_STATE_D3);
526e9af9229SFelipe Balbi 
527e9af9229SFelipe Balbi 	return -EBUSY;
528e9af9229SFelipe Balbi }
529e9af9229SFelipe Balbi 
530f6c274e1SFelipe Balbi static int dwc3_pci_runtime_resume(struct device *dev)
531f6c274e1SFelipe Balbi {
5320f817ae6SFelipe Balbi 	struct dwc3_pci		*dwc = dev_get_drvdata(dev);
5339cecca75SFelipe Balbi 	int			ret;
5349cecca75SFelipe Balbi 
5359cecca75SFelipe Balbi 	ret = dwc3_pci_dsm(dwc, PCI_INTEL_BXT_STATE_D0);
5369cecca75SFelipe Balbi 	if (ret)
5379cecca75SFelipe Balbi 		return ret;
538f6c274e1SFelipe Balbi 
5398eed00b2SManu Gautam 	queue_work(pm_wq, &dwc->wakeup_work);
5408eed00b2SManu Gautam 
5418eed00b2SManu Gautam 	return 0;
542f6c274e1SFelipe Balbi }
543696118c0SFelipe Balbi #endif /* CONFIG_PM */
544f6c274e1SFelipe Balbi 
545696118c0SFelipe Balbi #ifdef CONFIG_PM_SLEEP
5469cecca75SFelipe Balbi static int dwc3_pci_suspend(struct device *dev)
547e9af9229SFelipe Balbi {
5489cecca75SFelipe Balbi 	struct dwc3_pci		*dwc = dev_get_drvdata(dev);
5499cecca75SFelipe Balbi 
5509cecca75SFelipe Balbi 	return dwc3_pci_dsm(dwc, PCI_INTEL_BXT_STATE_D3);
5519cecca75SFelipe Balbi }
5529cecca75SFelipe Balbi 
5539cecca75SFelipe Balbi static int dwc3_pci_resume(struct device *dev)
5549cecca75SFelipe Balbi {
5559cecca75SFelipe Balbi 	struct dwc3_pci		*dwc = dev_get_drvdata(dev);
5569cecca75SFelipe Balbi 
5579cecca75SFelipe Balbi 	return dwc3_pci_dsm(dwc, PCI_INTEL_BXT_STATE_D0);
558e9af9229SFelipe Balbi }
559696118c0SFelipe Balbi #endif /* CONFIG_PM_SLEEP */
560e9af9229SFelipe Balbi 
56195aa932cSDoug Wilson static const struct dev_pm_ops dwc3_pci_dev_pm_ops = {
5629cecca75SFelipe Balbi 	SET_SYSTEM_SLEEP_PM_OPS(dwc3_pci_suspend, dwc3_pci_resume)
563f6c274e1SFelipe Balbi 	SET_RUNTIME_PM_OPS(dwc3_pci_runtime_suspend, dwc3_pci_runtime_resume,
564e9af9229SFelipe Balbi 		NULL)
565e9af9229SFelipe Balbi };
566e9af9229SFelipe Balbi 
56772246da4SFelipe Balbi static struct pci_driver dwc3_pci_driver = {
5680949e99bSFelipe Balbi 	.name		= "dwc3-pci",
56972246da4SFelipe Balbi 	.id_table	= dwc3_pci_id_table,
57072246da4SFelipe Balbi 	.probe		= dwc3_pci_probe,
5717690417dSBill Pemberton 	.remove		= dwc3_pci_remove,
572e9af9229SFelipe Balbi 	.driver		= {
573e9af9229SFelipe Balbi 		.pm	= &dwc3_pci_dev_pm_ops,
574e9af9229SFelipe Balbi 	}
57572246da4SFelipe Balbi };
57672246da4SFelipe Balbi 
57772246da4SFelipe Balbi MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>");
5785945f789SFelipe Balbi MODULE_LICENSE("GPL v2");
57972246da4SFelipe Balbi MODULE_DESCRIPTION("DesignWare USB3 PCI Glue Layer");
58072246da4SFelipe Balbi 
58195656336SGreg Kroah-Hartman module_pci_driver(dwc3_pci_driver);
582