172246da4SFelipe Balbi /** 272246da4SFelipe Balbi * dwc3-pci.c - PCI Specific glue layer 372246da4SFelipe Balbi * 472246da4SFelipe Balbi * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com 572246da4SFelipe Balbi * 672246da4SFelipe Balbi * Authors: Felipe Balbi <balbi@ti.com>, 772246da4SFelipe Balbi * Sebastian Andrzej Siewior <bigeasy@linutronix.de> 872246da4SFelipe Balbi * 95945f789SFelipe Balbi * This program is free software: you can redistribute it and/or modify 105945f789SFelipe Balbi * it under the terms of the GNU General Public License version 2 of 115945f789SFelipe Balbi * the License as published by the Free Software Foundation. 1272246da4SFelipe Balbi * 135945f789SFelipe Balbi * This program is distributed in the hope that it will be useful, 145945f789SFelipe Balbi * but WITHOUT ANY WARRANTY; without even the implied warranty of 155945f789SFelipe Balbi * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 165945f789SFelipe Balbi * GNU General Public License for more details. 1772246da4SFelipe Balbi */ 1872246da4SFelipe Balbi 1972246da4SFelipe Balbi #include <linux/kernel.h> 2046a57283SStephen Rothwell #include <linux/module.h> 2172246da4SFelipe Balbi #include <linux/slab.h> 2272246da4SFelipe Balbi #include <linux/pci.h> 23*8eed00b2SManu Gautam #include <linux/workqueue.h> 24e9af9229SFelipe Balbi #include <linux/pm_runtime.h> 2572246da4SFelipe Balbi #include <linux/platform_device.h> 26a89d977cSHeikki Krogerus #include <linux/gpio/consumer.h> 27a89d977cSHeikki Krogerus #include <linux/acpi.h> 28cf48305dSHeikki Krogerus #include <linux/delay.h> 298f317b47SHuang Rui 3072246da4SFelipe Balbi #define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3 0xabcd 3141adc59cSJohn Youn #define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3_AXI 0xabce 32e8095a25SJohn Youn #define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB31 0xabcf 33b62cd96dSHeikki Krogerus #define PCI_DEVICE_ID_INTEL_BYT 0x0f37 3485601f8cSDavid Cohen #define PCI_DEVICE_ID_INTEL_MRFLD 0x119e 359a5a0783SJohn Youn #define PCI_DEVICE_ID_INTEL_BSW 0x22b7 3684a2b61bSHeikki Krogerus #define PCI_DEVICE_ID_INTEL_SPTLP 0x9d30 3784a2b61bSHeikki Krogerus #define PCI_DEVICE_ID_INTEL_SPTH 0xa130 38b4c580a4SHeikki Krogerus #define PCI_DEVICE_ID_INTEL_BXT 0x0aaa 391ffb4d5cSHeikki Krogerus #define PCI_DEVICE_ID_INTEL_BXT_M 0x1aaa 40b4c580a4SHeikki Krogerus #define PCI_DEVICE_ID_INTEL_APL 0x5aaa 414491ed50SHeikki Krogerus #define PCI_DEVICE_ID_INTEL_KBP 0xa2b0 428f8983a5SHeikki Krogerus #define PCI_DEVICE_ID_INTEL_GLK 0x31aa 4368217959SHeikki Krogerus #define PCI_DEVICE_ID_INTEL_CNPLP 0x9dee 4468217959SHeikki Krogerus #define PCI_DEVICE_ID_INTEL_CNPH 0xa36e 4572246da4SFelipe Balbi 4694116f81SAndy Shevchenko #define PCI_INTEL_BXT_DSM_GUID "732b85d5-b7a7-4a1b-9ba0-4bbd00ffd511" 479cecca75SFelipe Balbi #define PCI_INTEL_BXT_FUNC_PMU_PWR 4 489cecca75SFelipe Balbi #define PCI_INTEL_BXT_STATE_D0 0 499cecca75SFelipe Balbi #define PCI_INTEL_BXT_STATE_D3 3 509cecca75SFelipe Balbi 510f817ae6SFelipe Balbi /** 520f817ae6SFelipe Balbi * struct dwc3_pci - Driver private structure 530f817ae6SFelipe Balbi * @dwc3: child dwc3 platform_device 540f817ae6SFelipe Balbi * @pci: our link to PCI bus 5594116f81SAndy Shevchenko * @guid: _DSM GUID 569cecca75SFelipe Balbi * @has_dsm_for_pm: true for devices which need to run _DSM on runtime PM 570f817ae6SFelipe Balbi */ 580f817ae6SFelipe Balbi struct dwc3_pci { 590f817ae6SFelipe Balbi struct platform_device *dwc3; 600f817ae6SFelipe Balbi struct pci_dev *pci; 619cecca75SFelipe Balbi 6294116f81SAndy Shevchenko guid_t guid; 639cecca75SFelipe Balbi 649cecca75SFelipe Balbi unsigned int has_dsm_for_pm:1; 65*8eed00b2SManu Gautam struct work_struct wakeup_work; 660f817ae6SFelipe Balbi }; 670f817ae6SFelipe Balbi 68a89d977cSHeikki Krogerus static const struct acpi_gpio_params reset_gpios = { 0, 0, false }; 69a89d977cSHeikki Krogerus static const struct acpi_gpio_params cs_gpios = { 1, 0, false }; 70a89d977cSHeikki Krogerus 71a89d977cSHeikki Krogerus static const struct acpi_gpio_mapping acpi_dwc3_byt_gpios[] = { 72a89d977cSHeikki Krogerus { "reset-gpios", &reset_gpios, 1 }, 73a89d977cSHeikki Krogerus { "cs-gpios", &cs_gpios, 1 }, 74a89d977cSHeikki Krogerus { }, 75a89d977cSHeikki Krogerus }; 76a89d977cSHeikki Krogerus 770f817ae6SFelipe Balbi static int dwc3_pci_quirks(struct dwc3_pci *dwc) 782cd9ddf7SHeikki Krogerus { 790f817ae6SFelipe Balbi struct platform_device *dwc3 = dwc->dwc3; 800f817ae6SFelipe Balbi struct pci_dev *pdev = dwc->pci; 810f817ae6SFelipe Balbi 822cd9ddf7SHeikki Krogerus if (pdev->vendor == PCI_VENDOR_ID_AMD && 832cd9ddf7SHeikki Krogerus pdev->device == PCI_DEVICE_ID_AMD_NL_USB) { 84cf48305dSHeikki Krogerus struct property_entry properties[] = { 85cf48305dSHeikki Krogerus PROPERTY_ENTRY_BOOL("snps,has-lpm-erratum"), 86cf48305dSHeikki Krogerus PROPERTY_ENTRY_U8("snps,lpm-nyet-threshold", 0xf), 87cf48305dSHeikki Krogerus PROPERTY_ENTRY_BOOL("snps,u2exit_lfps_quirk"), 88cf48305dSHeikki Krogerus PROPERTY_ENTRY_BOOL("snps,u2ss_inp3_quirk"), 89cf48305dSHeikki Krogerus PROPERTY_ENTRY_BOOL("snps,req_p1p2p3_quirk"), 90cf48305dSHeikki Krogerus PROPERTY_ENTRY_BOOL("snps,del_p1p2p3_quirk"), 91cf48305dSHeikki Krogerus PROPERTY_ENTRY_BOOL("snps,del_phy_power_chg_quirk"), 92cf48305dSHeikki Krogerus PROPERTY_ENTRY_BOOL("snps,lfps_filter_quirk"), 93cf48305dSHeikki Krogerus PROPERTY_ENTRY_BOOL("snps,rx_detect_poll_quirk"), 94cf48305dSHeikki Krogerus PROPERTY_ENTRY_BOOL("snps,tx_de_emphasis_quirk"), 95cf48305dSHeikki Krogerus PROPERTY_ENTRY_U8("snps,tx_de_emphasis", 1), 962cd9ddf7SHeikki Krogerus /* 972cd9ddf7SHeikki Krogerus * FIXME these quirks should be removed when AMD NL 98cf48305dSHeikki Krogerus * tapes out 992cd9ddf7SHeikki Krogerus */ 100cf48305dSHeikki Krogerus PROPERTY_ENTRY_BOOL("snps,disable_scramble_quirk"), 101cf48305dSHeikki Krogerus PROPERTY_ENTRY_BOOL("snps,dis_u3_susphy_quirk"), 102cf48305dSHeikki Krogerus PROPERTY_ENTRY_BOOL("snps,dis_u2_susphy_quirk"), 1030eae2fdeSJohn Youn PROPERTY_ENTRY_BOOL("linux,sysdev_is_parent"), 104cf48305dSHeikki Krogerus { }, 105cf48305dSHeikki Krogerus }; 1062cd9ddf7SHeikki Krogerus 107cf48305dSHeikki Krogerus return platform_device_add_properties(dwc3, properties); 1082cd9ddf7SHeikki Krogerus } 1092cd9ddf7SHeikki Krogerus 110e6fe66feSFelipe Balbi if (pdev->vendor == PCI_VENDOR_ID_INTEL) { 111e6fe66feSFelipe Balbi int ret; 112e6fe66feSFelipe Balbi 113e6fe66feSFelipe Balbi struct property_entry properties[] = { 11451c1685dSHans de Goede PROPERTY_ENTRY_STRING("dr_mode", "peripheral"), 1150eae2fdeSJohn Youn PROPERTY_ENTRY_BOOL("linux,sysdev_is_parent"), 116e6fe66feSFelipe Balbi { } 117e6fe66feSFelipe Balbi }; 118e6fe66feSFelipe Balbi 119e6fe66feSFelipe Balbi ret = platform_device_add_properties(dwc3, properties); 120e6fe66feSFelipe Balbi if (ret < 0) 121e6fe66feSFelipe Balbi return ret; 122e6fe66feSFelipe Balbi 1239cecca75SFelipe Balbi if (pdev->device == PCI_DEVICE_ID_INTEL_BXT || 1249cecca75SFelipe Balbi pdev->device == PCI_DEVICE_ID_INTEL_BXT_M) { 12594116f81SAndy Shevchenko guid_parse(PCI_INTEL_BXT_DSM_GUID, &dwc->guid); 1269cecca75SFelipe Balbi dwc->has_dsm_for_pm = true; 1279cecca75SFelipe Balbi } 1289cecca75SFelipe Balbi 129e6fe66feSFelipe Balbi if (pdev->device == PCI_DEVICE_ID_INTEL_BYT) { 130a89d977cSHeikki Krogerus struct gpio_desc *gpio; 131a89d977cSHeikki Krogerus 1324a56e413SAndy Shevchenko ret = devm_acpi_dev_add_driver_gpios(&pdev->dev, 133a89d977cSHeikki Krogerus acpi_dwc3_byt_gpios); 1344a56e413SAndy Shevchenko if (ret) 1354a56e413SAndy Shevchenko dev_dbg(&pdev->dev, "failed to add mapping table\n"); 136a89d977cSHeikki Krogerus 1372df033caSUwe Kleine-König /* 1382df033caSUwe Kleine-König * These GPIOs will turn on the USB2 PHY. Note that we have to 1392df033caSUwe Kleine-König * put the gpio descriptors again here because the phy driver 1402df033caSUwe Kleine-König * might want to grab them, too. 1412df033caSUwe Kleine-König */ 1422df033caSUwe Kleine-König gpio = gpiod_get_optional(&pdev->dev, "cs", GPIOD_OUT_LOW); 1432df033caSUwe Kleine-König if (IS_ERR(gpio)) 1442df033caSUwe Kleine-König return PTR_ERR(gpio); 1452df033caSUwe Kleine-König 146a89d977cSHeikki Krogerus gpiod_set_value_cansleep(gpio, 1); 147a89d977cSHeikki Krogerus gpiod_put(gpio); 148a89d977cSHeikki Krogerus 1492df033caSUwe Kleine-König gpio = gpiod_get_optional(&pdev->dev, "reset", GPIOD_OUT_LOW); 1502df033caSUwe Kleine-König if (IS_ERR(gpio)) 1512df033caSUwe Kleine-König return PTR_ERR(gpio); 1522df033caSUwe Kleine-König 1532df033caSUwe Kleine-König if (gpio) { 154a89d977cSHeikki Krogerus gpiod_set_value_cansleep(gpio, 1); 155a89d977cSHeikki Krogerus gpiod_put(gpio); 156a89d977cSHeikki Krogerus usleep_range(10000, 11000); 157a89d977cSHeikki Krogerus } 158a89d977cSHeikki Krogerus } 159e6fe66feSFelipe Balbi } 160a89d977cSHeikki Krogerus 161bb7f3d6dSJohn Youn if (pdev->vendor == PCI_VENDOR_ID_SYNOPSYS && 162bb7f3d6dSJohn Youn (pdev->device == PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3 || 163bb7f3d6dSJohn Youn pdev->device == PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3_AXI || 164bb7f3d6dSJohn Youn pdev->device == PCI_DEVICE_ID_SYNOPSYS_HAPSUSB31)) { 165cf48305dSHeikki Krogerus struct property_entry properties[] = { 166cf48305dSHeikki Krogerus PROPERTY_ENTRY_BOOL("snps,usb3_lpm_capable"), 167cf48305dSHeikki Krogerus PROPERTY_ENTRY_BOOL("snps,has-lpm-erratum"), 168cf48305dSHeikki Krogerus PROPERTY_ENTRY_BOOL("snps,dis_enblslpm_quirk"), 1690eae2fdeSJohn Youn PROPERTY_ENTRY_BOOL("linux,sysdev_is_parent"), 170cf48305dSHeikki Krogerus { }, 171cf48305dSHeikki Krogerus }; 172bb7f3d6dSJohn Youn 173cf48305dSHeikki Krogerus return platform_device_add_properties(dwc3, properties); 174bb7f3d6dSJohn Youn } 175bb7f3d6dSJohn Youn 1762cd9ddf7SHeikki Krogerus return 0; 1772cd9ddf7SHeikki Krogerus } 17872246da4SFelipe Balbi 179*8eed00b2SManu Gautam #ifdef CONFIG_PM 180*8eed00b2SManu Gautam static void dwc3_pci_resume_work(struct work_struct *work) 181*8eed00b2SManu Gautam { 182*8eed00b2SManu Gautam struct dwc3_pci *dwc = container_of(work, struct dwc3_pci, wakeup_work); 183*8eed00b2SManu Gautam struct platform_device *dwc3 = dwc->dwc3; 184*8eed00b2SManu Gautam int ret; 185*8eed00b2SManu Gautam 186*8eed00b2SManu Gautam ret = pm_runtime_get_sync(&dwc3->dev); 187*8eed00b2SManu Gautam if (ret) 188*8eed00b2SManu Gautam return; 189*8eed00b2SManu Gautam 190*8eed00b2SManu Gautam pm_runtime_mark_last_busy(&dwc3->dev); 191*8eed00b2SManu Gautam pm_runtime_put_sync_autosuspend(&dwc3->dev); 192*8eed00b2SManu Gautam } 193*8eed00b2SManu Gautam #endif 194*8eed00b2SManu Gautam 19541ac7b3aSBill Pemberton static int dwc3_pci_probe(struct pci_dev *pci, 19672246da4SFelipe Balbi const struct pci_device_id *id) 19772246da4SFelipe Balbi { 1980f817ae6SFelipe Balbi struct dwc3_pci *dwc; 19972246da4SFelipe Balbi struct resource res[2]; 200b09e99eeSAndy Shevchenko int ret; 201802ca850SChanho Park struct device *dev = &pci->dev; 20272246da4SFelipe Balbi 203f1c7e710SAndy Shevchenko ret = pcim_enable_device(pci); 20472246da4SFelipe Balbi if (ret) { 205802ca850SChanho Park dev_err(dev, "failed to enable pci device\n"); 206802ca850SChanho Park return -ENODEV; 20772246da4SFelipe Balbi } 20872246da4SFelipe Balbi 20972246da4SFelipe Balbi pci_set_master(pci); 21072246da4SFelipe Balbi 2110f817ae6SFelipe Balbi dwc = devm_kzalloc(dev, sizeof(*dwc), GFP_KERNEL); 2120f817ae6SFelipe Balbi if (!dwc) 213f1c7e710SAndy Shevchenko return -ENOMEM; 2140f817ae6SFelipe Balbi 2150f817ae6SFelipe Balbi dwc->dwc3 = platform_device_alloc("dwc3", PLATFORM_DEVID_AUTO); 2160f817ae6SFelipe Balbi if (!dwc->dwc3) 2170f817ae6SFelipe Balbi return -ENOMEM; 21872246da4SFelipe Balbi 21972246da4SFelipe Balbi memset(res, 0x00, sizeof(struct resource) * ARRAY_SIZE(res)); 22072246da4SFelipe Balbi 22172246da4SFelipe Balbi res[0].start = pci_resource_start(pci, 0); 22272246da4SFelipe Balbi res[0].end = pci_resource_end(pci, 0); 22372246da4SFelipe Balbi res[0].name = "dwc_usb3"; 22472246da4SFelipe Balbi res[0].flags = IORESOURCE_MEM; 22572246da4SFelipe Balbi 22672246da4SFelipe Balbi res[1].start = pci->irq; 22772246da4SFelipe Balbi res[1].name = "dwc_usb3"; 22872246da4SFelipe Balbi res[1].flags = IORESOURCE_IRQ; 22972246da4SFelipe Balbi 2300f817ae6SFelipe Balbi ret = platform_device_add_resources(dwc->dwc3, res, ARRAY_SIZE(res)); 23172246da4SFelipe Balbi if (ret) { 232802ca850SChanho Park dev_err(dev, "couldn't add resources to dwc3 device\n"); 233f1c7e710SAndy Shevchenko return ret; 23472246da4SFelipe Balbi } 23572246da4SFelipe Balbi 2360f817ae6SFelipe Balbi dwc->pci = pci; 2370f817ae6SFelipe Balbi dwc->dwc3->dev.parent = dev; 2380f817ae6SFelipe Balbi ACPI_COMPANION_SET(&dwc->dwc3->dev, ACPI_COMPANION(dev)); 23972246da4SFelipe Balbi 2400f817ae6SFelipe Balbi ret = dwc3_pci_quirks(dwc); 241474799f0SHeikki Krogerus if (ret) 242474799f0SHeikki Krogerus goto err; 243474799f0SHeikki Krogerus 2440f817ae6SFelipe Balbi ret = platform_device_add(dwc->dwc3); 24572246da4SFelipe Balbi if (ret) { 246802ca850SChanho Park dev_err(dev, "failed to register dwc3 device\n"); 2472cd9ddf7SHeikki Krogerus goto err; 24872246da4SFelipe Balbi } 24972246da4SFelipe Balbi 250e9af9229SFelipe Balbi device_init_wakeup(dev, true); 2510f817ae6SFelipe Balbi pci_set_drvdata(pci, dwc); 252e9af9229SFelipe Balbi pm_runtime_put(dev); 253*8eed00b2SManu Gautam #ifdef CONFIG_PM 254*8eed00b2SManu Gautam INIT_WORK(&dwc->wakeup_work, dwc3_pci_resume_work); 255*8eed00b2SManu Gautam #endif 256e9af9229SFelipe Balbi 25772246da4SFelipe Balbi return 0; 2582cd9ddf7SHeikki Krogerus err: 2590f817ae6SFelipe Balbi platform_device_put(dwc->dwc3); 26072246da4SFelipe Balbi return ret; 26172246da4SFelipe Balbi } 26272246da4SFelipe Balbi 263fb4e98abSBill Pemberton static void dwc3_pci_remove(struct pci_dev *pci) 26472246da4SFelipe Balbi { 2650f817ae6SFelipe Balbi struct dwc3_pci *dwc = pci_get_drvdata(pci); 2660f817ae6SFelipe Balbi 267*8eed00b2SManu Gautam #ifdef CONFIG_PM 268*8eed00b2SManu Gautam cancel_work_sync(&dwc->wakeup_work); 269*8eed00b2SManu Gautam #endif 270e9af9229SFelipe Balbi device_init_wakeup(&pci->dev, false); 271e9af9229SFelipe Balbi pm_runtime_get(&pci->dev); 2720f817ae6SFelipe Balbi platform_device_unregister(dwc->dwc3); 27372246da4SFelipe Balbi } 27472246da4SFelipe Balbi 275782df20cSJingoo Han static const struct pci_device_id dwc3_pci_id_table[] = { 27672246da4SFelipe Balbi { 27772246da4SFelipe Balbi PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS, 27872246da4SFelipe Balbi PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3), 27972246da4SFelipe Balbi }, 28041adc59cSJohn Youn { 28141adc59cSJohn Youn PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS, 28241adc59cSJohn Youn PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3_AXI), 28341adc59cSJohn Youn }, 284e8095a25SJohn Youn { 285e8095a25SJohn Youn PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS, 286e8095a25SJohn Youn PCI_DEVICE_ID_SYNOPSYS_HAPSUSB31), 287e8095a25SJohn Youn }, 2887d643664SAlan Cox { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BSW), }, 289b62cd96dSHeikki Krogerus { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BYT), }, 29085601f8cSDavid Cohen { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_MRFLD), }, 29184a2b61bSHeikki Krogerus { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SPTLP), }, 29284a2b61bSHeikki Krogerus { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SPTH), }, 293b4c580a4SHeikki Krogerus { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BXT), }, 2941ffb4d5cSHeikki Krogerus { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BXT_M), }, 295b4c580a4SHeikki Krogerus { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_APL), }, 2964491ed50SHeikki Krogerus { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_KBP), }, 2978f8983a5SHeikki Krogerus { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_GLK), }, 29868217959SHeikki Krogerus { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CNPLP), }, 29968217959SHeikki Krogerus { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CNPH), }, 3009755449dSHuang Rui { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_NL_USB), }, 30172246da4SFelipe Balbi { } /* Terminating Entry */ 30272246da4SFelipe Balbi }; 30372246da4SFelipe Balbi MODULE_DEVICE_TABLE(pci, dwc3_pci_id_table); 30472246da4SFelipe Balbi 30536daf3aaSFelipe Balbi #if defined(CONFIG_PM) || defined(CONFIG_PM_SLEEP) 30636daf3aaSFelipe Balbi static int dwc3_pci_dsm(struct dwc3_pci *dwc, int param) 30736daf3aaSFelipe Balbi { 30836daf3aaSFelipe Balbi union acpi_object *obj; 30936daf3aaSFelipe Balbi union acpi_object tmp; 31036daf3aaSFelipe Balbi union acpi_object argv4 = ACPI_INIT_DSM_ARGV4(1, &tmp); 31136daf3aaSFelipe Balbi 31236daf3aaSFelipe Balbi if (!dwc->has_dsm_for_pm) 31336daf3aaSFelipe Balbi return 0; 31436daf3aaSFelipe Balbi 31536daf3aaSFelipe Balbi tmp.type = ACPI_TYPE_INTEGER; 31636daf3aaSFelipe Balbi tmp.integer.value = param; 31736daf3aaSFelipe Balbi 31894116f81SAndy Shevchenko obj = acpi_evaluate_dsm(ACPI_HANDLE(&dwc->pci->dev), &dwc->guid, 31936daf3aaSFelipe Balbi 1, PCI_INTEL_BXT_FUNC_PMU_PWR, &argv4); 32036daf3aaSFelipe Balbi if (!obj) { 32136daf3aaSFelipe Balbi dev_err(&dwc->pci->dev, "failed to evaluate _DSM\n"); 32236daf3aaSFelipe Balbi return -EIO; 32336daf3aaSFelipe Balbi } 32436daf3aaSFelipe Balbi 32536daf3aaSFelipe Balbi ACPI_FREE(obj); 32636daf3aaSFelipe Balbi 32736daf3aaSFelipe Balbi return 0; 32836daf3aaSFelipe Balbi } 32936daf3aaSFelipe Balbi #endif /* CONFIG_PM || CONFIG_PM_SLEEP */ 33036daf3aaSFelipe Balbi 331e9af9229SFelipe Balbi #ifdef CONFIG_PM 332e9af9229SFelipe Balbi static int dwc3_pci_runtime_suspend(struct device *dev) 333e9af9229SFelipe Balbi { 3349cecca75SFelipe Balbi struct dwc3_pci *dwc = dev_get_drvdata(dev); 3359cecca75SFelipe Balbi 336de3ef1ebSRafael J. Wysocki if (device_can_wakeup(dev)) 3379cecca75SFelipe Balbi return dwc3_pci_dsm(dwc, PCI_INTEL_BXT_STATE_D3); 338e9af9229SFelipe Balbi 339e9af9229SFelipe Balbi return -EBUSY; 340e9af9229SFelipe Balbi } 341e9af9229SFelipe Balbi 342f6c274e1SFelipe Balbi static int dwc3_pci_runtime_resume(struct device *dev) 343f6c274e1SFelipe Balbi { 3440f817ae6SFelipe Balbi struct dwc3_pci *dwc = dev_get_drvdata(dev); 3459cecca75SFelipe Balbi int ret; 3469cecca75SFelipe Balbi 3479cecca75SFelipe Balbi ret = dwc3_pci_dsm(dwc, PCI_INTEL_BXT_STATE_D0); 3489cecca75SFelipe Balbi if (ret) 3499cecca75SFelipe Balbi return ret; 350f6c274e1SFelipe Balbi 351*8eed00b2SManu Gautam queue_work(pm_wq, &dwc->wakeup_work); 352*8eed00b2SManu Gautam 353*8eed00b2SManu Gautam return 0; 354f6c274e1SFelipe Balbi } 355696118c0SFelipe Balbi #endif /* CONFIG_PM */ 356f6c274e1SFelipe Balbi 357696118c0SFelipe Balbi #ifdef CONFIG_PM_SLEEP 3589cecca75SFelipe Balbi static int dwc3_pci_suspend(struct device *dev) 359e9af9229SFelipe Balbi { 3609cecca75SFelipe Balbi struct dwc3_pci *dwc = dev_get_drvdata(dev); 3619cecca75SFelipe Balbi 3629cecca75SFelipe Balbi return dwc3_pci_dsm(dwc, PCI_INTEL_BXT_STATE_D3); 3639cecca75SFelipe Balbi } 3649cecca75SFelipe Balbi 3659cecca75SFelipe Balbi static int dwc3_pci_resume(struct device *dev) 3669cecca75SFelipe Balbi { 3679cecca75SFelipe Balbi struct dwc3_pci *dwc = dev_get_drvdata(dev); 3689cecca75SFelipe Balbi 3699cecca75SFelipe Balbi return dwc3_pci_dsm(dwc, PCI_INTEL_BXT_STATE_D0); 370e9af9229SFelipe Balbi } 371696118c0SFelipe Balbi #endif /* CONFIG_PM_SLEEP */ 372e9af9229SFelipe Balbi 37395aa932cSDoug Wilson static const struct dev_pm_ops dwc3_pci_dev_pm_ops = { 3749cecca75SFelipe Balbi SET_SYSTEM_SLEEP_PM_OPS(dwc3_pci_suspend, dwc3_pci_resume) 375f6c274e1SFelipe Balbi SET_RUNTIME_PM_OPS(dwc3_pci_runtime_suspend, dwc3_pci_runtime_resume, 376e9af9229SFelipe Balbi NULL) 377e9af9229SFelipe Balbi }; 378e9af9229SFelipe Balbi 37972246da4SFelipe Balbi static struct pci_driver dwc3_pci_driver = { 3800949e99bSFelipe Balbi .name = "dwc3-pci", 38172246da4SFelipe Balbi .id_table = dwc3_pci_id_table, 38272246da4SFelipe Balbi .probe = dwc3_pci_probe, 3837690417dSBill Pemberton .remove = dwc3_pci_remove, 384e9af9229SFelipe Balbi .driver = { 385e9af9229SFelipe Balbi .pm = &dwc3_pci_dev_pm_ops, 386e9af9229SFelipe Balbi } 38772246da4SFelipe Balbi }; 38872246da4SFelipe Balbi 38972246da4SFelipe Balbi MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>"); 3905945f789SFelipe Balbi MODULE_LICENSE("GPL v2"); 39172246da4SFelipe Balbi MODULE_DESCRIPTION("DesignWare USB3 PCI Glue Layer"); 39272246da4SFelipe Balbi 39395656336SGreg Kroah-Hartman module_pci_driver(dwc3_pci_driver); 394