v4.19.13 snapshot.
diff --git a/drivers/usb/dwc3/dwc3-haps.c b/drivers/usb/dwc3/dwc3-haps.c
new file mode 100644
index 0000000..c9cc338
--- /dev/null
+++ b/drivers/usb/dwc3/dwc3-haps.c
@@ -0,0 +1,137 @@
+// SPDX-License-Identifier: GPL-2.0
+/**
+ * dwc3-haps.c - Synopsys HAPS PCI Specific glue layer
+ *
+ * Copyright (C) 2018 Synopsys, Inc.
+ *
+ * Authors: Thinh Nguyen <thinhn@synopsys.com>,
+ * John Youn <johnyoun@synopsys.com>
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/pci.h>
+#include <linux/platform_device.h>
+#include <linux/property.h>
+
+#define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3 0xabcd
+#define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3_AXI 0xabce
+#define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB31 0xabcf
+
+/**
+ * struct dwc3_haps - Driver private structure
+ * @dwc3: child dwc3 platform_device
+ * @pci: our link to PCI bus
+ */
+struct dwc3_haps {
+ struct platform_device *dwc3;
+ struct pci_dev *pci;
+};
+
+static const struct property_entry initial_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"),
+ { },
+};
+
+static int dwc3_haps_probe(struct pci_dev *pci,
+ const struct pci_device_id *id)
+{
+ struct dwc3_haps *dwc;
+ struct device *dev = &pci->dev;
+ struct resource res[2];
+ int ret;
+
+ 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");
+ goto err;
+ }
+
+ dwc->pci = pci;
+ dwc->dwc3->dev.parent = dev;
+
+ ret = platform_device_add_properties(dwc->dwc3, initial_properties);
+ if (ret)
+ goto err;
+
+ ret = platform_device_add(dwc->dwc3);
+ if (ret) {
+ dev_err(dev, "failed to register dwc3 device\n");
+ goto err;
+ }
+
+ pci_set_drvdata(pci, dwc);
+
+ return 0;
+err:
+ platform_device_put(dwc->dwc3);
+ return ret;
+}
+
+static void dwc3_haps_remove(struct pci_dev *pci)
+{
+ struct dwc3_haps *dwc = pci_get_drvdata(pci);
+
+ platform_device_unregister(dwc->dwc3);
+}
+
+static const struct pci_device_id dwc3_haps_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),
+ },
+ { } /* Terminating Entry */
+};
+MODULE_DEVICE_TABLE(pci, dwc3_haps_id_table);
+
+static struct pci_driver dwc3_haps_driver = {
+ .name = "dwc3-haps",
+ .id_table = dwc3_haps_id_table,
+ .probe = dwc3_haps_probe,
+ .remove = dwc3_haps_remove,
+};
+
+MODULE_AUTHOR("Thinh Nguyen <thinhn@synopsys.com>");
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("Synopsys HAPS PCI Glue Layer");
+
+module_pci_driver(dwc3_haps_driver);