1 files changed, 337 insertions, 151 deletions

diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c
index ef09cb06212f..074d9c731639 100644
--- a/drivers/usb/host/xhci-plat.c
+++ b/drivers/usb/host/xhci-plat.c
@@ -2,7 +2,7 @@
 /*
  * xhci-plat.c - xHCI host controller driver platform Bus Glue.
  *
- * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com
+ * Copyright (C) 2012 Texas Instruments Incorporated - https://www.ti.com
  * Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
  *
  * A lot of code borrowed from the Linux xHCI driver.
@@ -19,11 +19,12 @@
 #include <linux/slab.h>
 #include <linux/acpi.h>
 #include <linux/usb/of.h>
+#include <linux/reset.h>
+#include <linux/usb/xhci-sideband.h>
 
 #include "xhci.h"
 #include "xhci-plat.h"
 #include "xhci-mvebu.h"
-#include "xhci-rcar.h"
 
 static struct hc_driver __read_mostly xhci_plat_hc_driver;
 
@@ -54,6 +55,16 @@ static int xhci_priv_init_quirk(struct usb_hcd *hcd)
 	return priv->init_quirk(hcd);
 }
 
+static int xhci_priv_suspend_quirk(struct usb_hcd *hcd)
+{
+	struct xhci_plat_priv *priv = hcd_to_xhci_priv(hcd);
+
+	if (!priv->suspend_quirk)
+		return 0;
+
+	return priv->suspend_quirk(hcd);
+}
+
 static int xhci_priv_resume_quirk(struct usb_hcd *hcd)
 {
 	struct xhci_plat_priv *priv = hcd_to_xhci_priv(hcd);
@@ -64,14 +75,21 @@ static int xhci_priv_resume_quirk(struct usb_hcd *hcd)
 	return priv->resume_quirk(hcd);
 }
 
+static int xhci_priv_post_resume_quirk(struct usb_hcd *hcd)
+{
+	struct xhci_plat_priv *priv = hcd_to_xhci_priv(hcd);
+
+	if (!priv->post_resume_quirk)
+		return 0;
+
+	return priv->post_resume_quirk(hcd);
+}
+
 static void xhci_plat_quirks(struct device *dev, struct xhci_hcd *xhci)
 {
-	/*
-	 * As of now platform drivers don't provide MSI support so we ensure
-	 * here that the generic code does not try to make a pci_dev from our
-	 * dev struct in order to setup MSI
-	 */
-	xhci->quirks |= XHCI_PLAT;
+	struct xhci_plat_priv *priv = xhci_to_priv(xhci);
+
+	xhci->quirks |= priv->quirks;
 }
 
 /* called during probe() after chip reset completes */
@@ -98,18 +116,12 @@ static const struct xhci_plat_priv xhci_plat_marvell_armada = {
 	.init_quirk = xhci_mvebu_mbus_init_quirk,
 };
 
-static const struct xhci_plat_priv xhci_plat_renesas_rcar_gen2 = {
-	.firmware_name = XHCI_RCAR_FIRMWARE_NAME_V1,
-	.init_quirk = xhci_rcar_init_quirk,
-	.plat_start = xhci_rcar_start,
-	.resume_quirk = xhci_rcar_resume_quirk,
+static const struct xhci_plat_priv xhci_plat_marvell_armada3700 = {
+	.quirks = XHCI_RESET_ON_RESUME,
 };
 
-static const struct xhci_plat_priv xhci_plat_renesas_rcar_gen3 = {
-	.firmware_name = XHCI_RCAR_FIRMWARE_NAME_V3,
-	.init_quirk = xhci_rcar_init_quirk,
-	.plat_start = xhci_rcar_start,
-	.resume_quirk = xhci_rcar_resume_quirk,
+static const struct xhci_plat_priv xhci_plat_brcm = {
+	.quirks = XHCI_RESET_ON_RESUME | XHCI_SUSPEND_RESUME_CLKS,
 };
 
 static const struct of_device_id usb_xhci_of_match[] = {
@@ -124,44 +136,34 @@ static const struct of_device_id usb_xhci_of_match[] = {
 		.compatible = "marvell,armada-380-xhci",
 		.data = &xhci_plat_marvell_armada,
 	}, {
-		.compatible = "renesas,xhci-r8a7790",
-		.data = &xhci_plat_renesas_rcar_gen2,
-	}, {
-		.compatible = "renesas,xhci-r8a7791",
-		.data = &xhci_plat_renesas_rcar_gen2,
+		.compatible = "marvell,armada3700-xhci",
+		.data = &xhci_plat_marvell_armada3700,
 	}, {
-		.compatible = "renesas,xhci-r8a7793",
-		.data = &xhci_plat_renesas_rcar_gen2,
+		.compatible = "brcm,xhci-brcm-v2",
+		.data = &xhci_plat_brcm,
 	}, {
-		.compatible = "renesas,xhci-r8a7795",
-		.data = &xhci_plat_renesas_rcar_gen3,
+		.compatible = "brcm,bcm2711-xhci",
+		.data = &xhci_plat_brcm,
 	}, {
-		.compatible = "renesas,xhci-r8a7796",
-		.data = &xhci_plat_renesas_rcar_gen3,
-	}, {
-		.compatible = "renesas,rcar-gen2-xhci",
-		.data = &xhci_plat_renesas_rcar_gen2,
-	}, {
-		.compatible = "renesas,rcar-gen3-xhci",
-		.data = &xhci_plat_renesas_rcar_gen3,
+		.compatible = "brcm,bcm7445-xhci",
+		.data = &xhci_plat_brcm,
 	},
 	{},
 };
 MODULE_DEVICE_TABLE(of, usb_xhci_of_match);
 #endif
 
-static int xhci_plat_probe(struct platform_device *pdev)
+int xhci_plat_probe(struct platform_device *pdev, struct device *sysdev, const struct xhci_plat_priv *priv_match)
 {
-	const struct xhci_plat_priv *priv_match;
 	const struct hc_driver	*driver;
-	struct device		*sysdev, *tmpdev;
+	struct device		*tmpdev;
 	struct xhci_hcd		*xhci;
 	struct resource         *res;
-	struct usb_hcd		*hcd;
-	struct clk              *clk;
-	struct clk              *reg_clk;
+	struct usb_hcd		*hcd, *usb3_hcd;
 	int			ret;
 	int			irq;
+	struct xhci_plat_priv	*priv = NULL;
+	const struct of_device_id *of_match;
 
 	if (usb_disabled())
 		return -ENODEV;
@@ -172,42 +174,15 @@ static int xhci_plat_probe(struct platform_device *pdev)
 	if (irq < 0)
 		return irq;
 
-	/*
-	 * sysdev must point to a device that is known to the system firmware
-	 * or PCI hardware. We handle these three cases here:
-	 * 1. xhci_plat comes from firmware
-	 * 2. xhci_plat is child of a device from firmware (dwc3-plat)
-	 * 3. xhci_plat is grandchild of a pci device (dwc3-pci)
-	 */
-	for (sysdev = &pdev->dev; sysdev; sysdev = sysdev->parent) {
-		if (is_of_node(sysdev->fwnode) ||
-			is_acpi_device_node(sysdev->fwnode))
-			break;
-#ifdef CONFIG_PCI
-		else if (sysdev->bus == &pci_bus_type)
-			break;
-#endif
-	}
-
 	if (!sysdev)
 		sysdev = &pdev->dev;
 
-	/* Try to set 64-bit DMA first */
-	if (WARN_ON(!sysdev->dma_mask))
-		/* Platform did not initialize dma_mask */
-		ret = dma_coerce_mask_and_coherent(sysdev,
-						   DMA_BIT_MASK(64));
-	else
-		ret = dma_set_mask_and_coherent(sysdev, DMA_BIT_MASK(64));
-
-	/* If seting 64-bit DMA mask fails, fall back to 32-bit DMA mask */
-	if (ret) {
-		ret = dma_set_mask_and_coherent(sysdev, DMA_BIT_MASK(32));
-		if (ret)
-			return ret;
-	}
+	ret = dma_set_mask_and_coherent(sysdev, DMA_BIT_MASK(64));
+	if (ret)
+		return ret;
 
 	pm_runtime_set_active(&pdev->dev);
+	pm_runtime_use_autosuspend(&pdev->dev);
 	pm_runtime_enable(&pdev->dev);
 	pm_runtime_get_noresume(&pdev->dev);
 
@@ -218,8 +193,7 @@ static int xhci_plat_probe(struct platform_device *pdev)
 		goto disable_runtime;
 	}
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	hcd->regs = devm_ioremap_resource(&pdev->dev, res);
+	hcd->regs = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
 	if (IS_ERR(hcd->regs)) {
 		ret = PTR_ERR(hcd->regs);
 		goto put_hcd;
@@ -228,51 +202,53 @@ static int xhci_plat_probe(struct platform_device *pdev)
 	hcd->rsrc_start = res->start;
 	hcd->rsrc_len = resource_size(res);
 
+	xhci = hcd_to_xhci(hcd);
+
+	xhci->allow_single_roothub = 1;
+
 	/*
 	 * Not all platforms have clks so it is not an error if the
 	 * clock do not exist.
 	 */
-	reg_clk = devm_clk_get(&pdev->dev, "reg");
-	if (!IS_ERR(reg_clk)) {
-		ret = clk_prepare_enable(reg_clk);
-		if (ret)
-			goto put_hcd;
-	} else if (PTR_ERR(reg_clk) == -EPROBE_DEFER) {
-		ret = -EPROBE_DEFER;
+	xhci->reg_clk = devm_clk_get_optional(&pdev->dev, "reg");
+	if (IS_ERR(xhci->reg_clk)) {
+		ret = PTR_ERR(xhci->reg_clk);
 		goto put_hcd;
 	}
 
-	clk = devm_clk_get(&pdev->dev, NULL);
-	if (!IS_ERR(clk)) {
-		ret = clk_prepare_enable(clk);
-		if (ret)
-			goto disable_reg_clk;
-	} else if (PTR_ERR(clk) == -EPROBE_DEFER) {
-		ret = -EPROBE_DEFER;
-		goto disable_reg_clk;
+	xhci->clk = devm_clk_get_optional(&pdev->dev, NULL);
+	if (IS_ERR(xhci->clk)) {
+		ret = PTR_ERR(xhci->clk);
+		goto put_hcd;
 	}
 
-	xhci = hcd_to_xhci(hcd);
-	priv_match = of_device_get_match_data(&pdev->dev);
-	if (priv_match) {
-		struct xhci_plat_priv *priv = hcd_to_xhci_priv(hcd);
+	xhci->reset = devm_reset_control_array_get_optional_shared(&pdev->dev);
+	if (IS_ERR(xhci->reset)) {
+		ret = PTR_ERR(xhci->reset);
+		goto put_hcd;
+	}
+
+	ret = reset_control_deassert(xhci->reset);
+	if (ret)
+		goto put_hcd;
+
+	ret = clk_prepare_enable(xhci->reg_clk);
+	if (ret)
+		goto err_reset;
 
+	ret = clk_prepare_enable(xhci->clk);
+	if (ret)
+		goto disable_reg_clk;
+
+	if (priv_match) {
+		priv = hcd_to_xhci_priv(hcd);
 		/* Just copy data for now */
-		if (priv_match)
-			*priv = *priv_match;
+		*priv = *priv_match;
 	}
 
-	device_wakeup_enable(hcd->self.controller);
+	device_set_wakeup_capable(&pdev->dev, true);
 
-	xhci->clk = clk;
-	xhci->reg_clk = reg_clk;
 	xhci->main_hcd = hcd;
-	xhci->shared_hcd = __usb_create_hcd(driver, sysdev, &pdev->dev,
-			dev_name(&pdev->dev), hcd);
-	if (!xhci->shared_hcd) {
-		ret = -ENOMEM;
-		goto disable_clk;
-	}
 
 	/* imod_interval is the interrupt moderation value in nanoseconds. */
 	xhci->imod_interval = 40000;
@@ -289,35 +265,92 @@ static int xhci_plat_probe(struct platform_device *pdev)
 		if (device_property_read_bool(tmpdev, "quirk-broken-port-ped"))
 			xhci->quirks |= XHCI_BROKEN_PORT_PED;
 
+		if (device_property_read_bool(tmpdev, "xhci-sg-trb-cache-size-quirk"))
+			xhci->quirks |= XHCI_SG_TRB_CACHE_SIZE_QUIRK;
+
+		if (device_property_read_bool(tmpdev, "write-64-hi-lo-quirk"))
+			xhci->quirks |= XHCI_WRITE_64_HI_LO;
+
+		if (device_property_read_bool(tmpdev, "xhci-missing-cas-quirk"))
+			xhci->quirks |= XHCI_MISSING_CAS;
+
+		if (device_property_read_bool(tmpdev, "xhci-skip-phy-init-quirk"))
+			xhci->quirks |= XHCI_SKIP_PHY_INIT;
+
 		device_property_read_u32(tmpdev, "imod-interval-ns",
 					 &xhci->imod_interval);
+		device_property_read_u16(tmpdev, "num-hc-interrupters",
+					 &xhci->max_interrupters);
 	}
 
-	hcd->usb_phy = devm_usb_get_phy_by_phandle(sysdev, "usb-phy", 0);
-	if (IS_ERR(hcd->usb_phy)) {
-		ret = PTR_ERR(hcd->usb_phy);
-		if (ret == -EPROBE_DEFER)
-			goto put_usb3_hcd;
-		hcd->usb_phy = NULL;
-	} else {
-		ret = usb_phy_init(hcd->usb_phy);
-		if (ret)
-			goto put_usb3_hcd;
-		hcd->skip_phy_initialization = 1;
+	/*
+	 * Drivers such as dwc3 manages PHYs themself (and rely on driver name
+	 * matching for the xhci platform device).
+	 */
+	of_match = of_match_device(pdev->dev.driver->of_match_table, &pdev->dev);
+	if (of_match) {
+		hcd->usb_phy = devm_usb_get_phy_by_phandle(sysdev, "usb-phy", 0);
+		if (IS_ERR(hcd->usb_phy)) {
+			ret = PTR_ERR(hcd->usb_phy);
+			if (ret == -EPROBE_DEFER)
+				goto disable_clk;
+			hcd->usb_phy = NULL;
+		} else {
+			ret = usb_phy_init(hcd->usb_phy);
+			if (ret)
+				goto disable_clk;
+		}
 	}
 
 	hcd->tpl_support = of_usb_host_tpl_support(sysdev->of_node);
-	xhci->shared_hcd->tpl_support = hcd->tpl_support;
+
+	if ((priv && (priv->quirks & XHCI_SKIP_PHY_INIT)) ||
+	    (xhci->quirks & XHCI_SKIP_PHY_INIT))
+		hcd->skip_phy_initialization = 1;
+
+	if (priv && (priv->quirks & XHCI_SG_TRB_CACHE_SIZE_QUIRK))
+		xhci->quirks |= XHCI_SG_TRB_CACHE_SIZE_QUIRK;
+
 	ret = usb_add_hcd(hcd, irq, IRQF_SHARED);
 	if (ret)
 		goto disable_usb_phy;
 
-	if (HCC_MAX_PSA(xhci->hcc_params) >= 4)
-		xhci->shared_hcd->can_do_streams = 1;
+	if (!xhci_has_one_roothub(xhci)) {
+		xhci->shared_hcd = __usb_create_hcd(driver, sysdev, &pdev->dev,
+						    dev_name(&pdev->dev), hcd);
+		if (!xhci->shared_hcd) {
+			ret = -ENOMEM;
+			goto dealloc_usb2_hcd;
+		}
+
+		if (of_match) {
+			xhci->shared_hcd->usb_phy = devm_usb_get_phy_by_phandle(sysdev,
+										"usb-phy", 1);
+			if (IS_ERR(xhci->shared_hcd->usb_phy)) {
+				xhci->shared_hcd->usb_phy = NULL;
+			} else {
+				ret = usb_phy_init(xhci->shared_hcd->usb_phy);
+				if (ret)
+					dev_err(sysdev, "%s init usb3phy fail (ret=%d)\n",
+						__func__, ret);
+			}
+		}
+
+		xhci->shared_hcd->tpl_support = hcd->tpl_support;
+	}
+
+	usb3_hcd = xhci_get_usb3_hcd(xhci);
+	if (usb3_hcd && HCC_MAX_PSA(xhci->hcc_params) >= 4 &&
+	    !(xhci->quirks & XHCI_BROKEN_STREAMS))
+		usb3_hcd->can_do_streams = 1;
 
-	ret = usb_add_hcd(xhci->shared_hcd, irq, IRQF_SHARED);
-	if (ret)
-		goto dealloc_usb2_hcd;
+	if (xhci->shared_hcd) {
+		xhci->shared_hcd->rsrc_start = hcd->rsrc_start;
+		xhci->shared_hcd->rsrc_len = hcd->rsrc_len;
+		ret = usb_add_hcd(xhci->shared_hcd, irq, IRQF_SHARED);
+		if (ret)
+			goto put_usb3_hcd;
+	}
 
 	device_enable_async_suspend(&pdev->dev);
 	pm_runtime_put_noidle(&pdev->dev);
@@ -331,20 +364,23 @@ static int xhci_plat_probe(struct platform_device *pdev)
 	return 0;
 
 
+put_usb3_hcd:
+	usb_put_hcd(xhci->shared_hcd);
+
 dealloc_usb2_hcd:
 	usb_remove_hcd(hcd);
 
 disable_usb_phy:
 	usb_phy_shutdown(hcd->usb_phy);
 
-put_usb3_hcd:
-	usb_put_hcd(xhci->shared_hcd);
-
 disable_clk:
-	clk_disable_unprepare(clk);
+	clk_disable_unprepare(xhci->clk);
 
 disable_reg_clk:
-	clk_disable_unprepare(reg_clk);
+	clk_disable_unprepare(xhci->reg_clk);
+
+err_reset:
+	reset_control_assert(xhci->reset);
 
 put_hcd:
 	usb_put_hcd(hcd);
@@ -355,8 +391,48 @@ disable_runtime:
 
 	return ret;
 }
+EXPORT_SYMBOL_GPL(xhci_plat_probe);
+
+static int xhci_generic_plat_probe(struct platform_device *pdev)
+{
+	const struct xhci_plat_priv *priv_match;
+	struct device *sysdev;
+	int ret;
+
+	/*
+	 * sysdev must point to a device that is known to the system firmware
+	 * or PCI hardware. We handle these three cases here:
+	 * 1. xhci_plat comes from firmware
+	 * 2. xhci_plat is child of a device from firmware (dwc3-plat)
+	 * 3. xhci_plat is grandchild of a pci device (dwc3-pci)
+	 */
+	for (sysdev = &pdev->dev; sysdev; sysdev = sysdev->parent) {
+		if (is_of_node(sysdev->fwnode) ||
+			is_acpi_device_node(sysdev->fwnode))
+			break;
+		else if (dev_is_pci(sysdev))
+			break;
+	}
+
+	if (!sysdev)
+		sysdev = &pdev->dev;
+
+	if (WARN_ON(!sysdev->dma_mask)) {
+		/* Platform did not initialize dma_mask */
+		ret = dma_coerce_mask_and_coherent(sysdev, DMA_BIT_MASK(64));
+		if (ret)
+			return ret;
+	}
+
+	if (pdev->dev.of_node)
+		priv_match = of_device_get_match_data(&pdev->dev);
+	else
+		priv_match = dev_get_platdata(&pdev->dev);
+
+	return xhci_plat_probe(pdev, sysdev, priv_match);
+}
 
-static int xhci_plat_remove(struct platform_device *dev)
+void xhci_plat_remove(struct platform_device *dev)
 {
 	struct usb_hcd	*hcd = platform_get_drvdata(dev);
 	struct xhci_hcd	*xhci = hcd_to_xhci(hcd);
@@ -365,57 +441,157 @@ static int xhci_plat_remove(struct platform_device *dev)
 	struct usb_hcd *shared_hcd = xhci->shared_hcd;
 
 	xhci->xhc_state |= XHCI_STATE_REMOVING;
+	pm_runtime_get_sync(&dev->dev);
+
+	if (shared_hcd) {
+		usb_remove_hcd(shared_hcd);
+		xhci->shared_hcd = NULL;
+	}
 
-	usb_remove_hcd(shared_hcd);
-	xhci->shared_hcd = NULL;
 	usb_phy_shutdown(hcd->usb_phy);
 
 	usb_remove_hcd(hcd);
-	usb_put_hcd(shared_hcd);
+
+	if (shared_hcd)
+		usb_put_hcd(shared_hcd);
 
 	clk_disable_unprepare(clk);
 	clk_disable_unprepare(reg_clk);
+	reset_control_assert(xhci->reset);
 	usb_put_hcd(hcd);
 
-	pm_runtime_set_suspended(&dev->dev);
 	pm_runtime_disable(&dev->dev);
-
-	return 0;
+	pm_runtime_put_noidle(&dev->dev);
+	pm_runtime_set_suspended(&dev->dev);
 }
+EXPORT_SYMBOL_GPL(xhci_plat_remove);
 
-static int __maybe_unused xhci_plat_suspend(struct device *dev)
+static int xhci_plat_suspend_common(struct device *dev)
 {
 	struct usb_hcd	*hcd = dev_get_drvdata(dev);
 	struct xhci_hcd	*xhci = hcd_to_xhci(hcd);
+	int ret;
+
+	if (pm_runtime_suspended(dev))
+		pm_runtime_resume(dev);
 
+	ret = xhci_priv_suspend_quirk(hcd);
+	if (ret)
+		return ret;
 	/*
 	 * xhci_suspend() needs `do_wakeup` to know whether host is allowed
-	 * to do wakeup during suspend. Since xhci_plat_suspend is currently
-	 * only designed for system suspend, device_may_wakeup() is enough
-	 * to dertermine whether host is allowed to do wakeup. Need to
-	 * reconsider this when xhci_plat_suspend enlarges its scope, e.g.,
-	 * also applies to runtime suspend.
+	 * to do wakeup during suspend.
 	 */
-	return xhci_suspend(xhci, device_may_wakeup(dev));
+	ret = xhci_suspend(xhci, device_may_wakeup(dev));
+	if (ret)
+		return ret;
+
+	if (!device_may_wakeup(dev) && (xhci->quirks & XHCI_SUSPEND_RESUME_CLKS)) {
+		clk_disable_unprepare(xhci->clk);
+		clk_disable_unprepare(xhci->reg_clk);
+	}
+
+	return 0;
+}
+
+static int xhci_plat_suspend(struct device *dev)
+{
+	struct usb_hcd	*hcd = dev_get_drvdata(dev);
+	struct xhci_plat_priv *priv = hcd_to_xhci_priv(hcd);
+
+	if (xhci_sideband_check(hcd)) {
+		priv->sideband_at_suspend = 1;
+		dev_dbg(dev, "sideband instance active, skip suspend.\n");
+		return 0;
+	}
+
+	return xhci_plat_suspend_common(dev);
+}
+
+static int xhci_plat_freeze(struct device *dev)
+{
+	return xhci_plat_suspend_common(dev);
 }
 
-static int __maybe_unused xhci_plat_resume(struct device *dev)
+static int xhci_plat_resume_common(struct device *dev, bool power_lost)
 {
 	struct usb_hcd	*hcd = dev_get_drvdata(dev);
+	struct xhci_plat_priv *priv = hcd_to_xhci_priv(hcd);
 	struct xhci_hcd	*xhci = hcd_to_xhci(hcd);
 	int ret;
 
+	if (!device_may_wakeup(dev) && (xhci->quirks & XHCI_SUSPEND_RESUME_CLKS)) {
+		ret = clk_prepare_enable(xhci->clk);
+		if (ret)
+			return ret;
+
+		ret = clk_prepare_enable(xhci->reg_clk);
+		if (ret) {
+			clk_disable_unprepare(xhci->clk);
+			return ret;
+		}
+	}
+
 	ret = xhci_priv_resume_quirk(hcd);
 	if (ret)
-		return ret;
+		goto disable_clks;
+
+	ret = xhci_resume(xhci, power_lost || priv->power_lost, false);
+	if (ret)
+		goto disable_clks;
+
+	ret = xhci_priv_post_resume_quirk(hcd);
+	if (ret)
+		goto disable_clks;
+
+	pm_runtime_disable(dev);
+	pm_runtime_set_active(dev);
+	pm_runtime_enable(dev);
+
+	return 0;
+
+disable_clks:
+	if (!device_may_wakeup(dev) && (xhci->quirks & XHCI_SUSPEND_RESUME_CLKS)) {
+		clk_disable_unprepare(xhci->clk);
+		clk_disable_unprepare(xhci->reg_clk);
+	}
+
+	return ret;
+}
+
+static int xhci_plat_resume(struct device *dev)
+{
+	struct usb_hcd	*hcd = dev_get_drvdata(dev);
+	struct xhci_plat_priv *priv = hcd_to_xhci_priv(hcd);
+
+	if (priv->sideband_at_suspend) {
+		priv->sideband_at_suspend = 0;
+		dev_dbg(dev, "sideband instance active, skip resume.\n");
+		return 0;
+	}
+
+	return xhci_plat_resume_common(dev, false);
+}
+
+static int xhci_plat_thaw(struct device *dev)
+{
+	return xhci_plat_resume_common(dev, false);
+}
 
-	return xhci_resume(xhci, 0);
+static int xhci_plat_restore(struct device *dev)
+{
+	return xhci_plat_resume_common(dev, true);
 }
 
 static int __maybe_unused xhci_plat_runtime_suspend(struct device *dev)
 {
 	struct usb_hcd  *hcd = dev_get_drvdata(dev);
 	struct xhci_hcd *xhci = hcd_to_xhci(hcd);
+	int ret;
+
+	ret = xhci_priv_suspend_quirk(hcd);
+	if (ret)
+		return ret;
 
 	return xhci_suspend(xhci, true);
 }
@@ -425,27 +601,37 @@ static int __maybe_unused xhci_plat_runtime_resume(struct device *dev)
 	struct usb_hcd  *hcd = dev_get_drvdata(dev);
 	struct xhci_hcd *xhci = hcd_to_xhci(hcd);
 
-	return xhci_resume(xhci, 0);
+	return xhci_resume(xhci, false, true);
 }
 
-static const struct dev_pm_ops xhci_plat_pm_ops = {
-	SET_SYSTEM_SLEEP_PM_OPS(xhci_plat_suspend, xhci_plat_resume)
+const struct dev_pm_ops xhci_plat_pm_ops = {
+	.suspend = pm_sleep_ptr(xhci_plat_suspend),
+	.resume = pm_sleep_ptr(xhci_plat_resume),
+	.freeze = pm_sleep_ptr(xhci_plat_freeze),
+	.thaw = pm_sleep_ptr(xhci_plat_thaw),
+	.poweroff = pm_sleep_ptr(xhci_plat_freeze),
+	.restore = pm_sleep_ptr(xhci_plat_restore),
 
 	SET_RUNTIME_PM_OPS(xhci_plat_runtime_suspend,
 			   xhci_plat_runtime_resume,
 			   NULL)
 };
+EXPORT_SYMBOL_GPL(xhci_plat_pm_ops);
 
+#ifdef CONFIG_ACPI
 static const struct acpi_device_id usb_xhci_acpi_match[] = {
 	/* XHCI-compliant USB Controller */
 	{ "PNP0D10", },
+	{ "PNP0D15", },
 	{ }
 };
 MODULE_DEVICE_TABLE(acpi, usb_xhci_acpi_match);
+#endif
 
-static struct platform_driver usb_xhci_driver = {
-	.probe	= xhci_plat_probe,
-	.remove	= xhci_plat_remove,
+static struct platform_driver usb_generic_xhci_driver = {
+	.probe	= xhci_generic_plat_probe,
+	.remove = xhci_plat_remove,
+	.shutdown = usb_hcd_platform_shutdown,
 	.driver	= {
 		.name = "xhci-hcd",
 		.pm = &xhci_plat_pm_ops,
@@ -458,13 +644,13 @@ MODULE_ALIAS("platform:xhci-hcd");
 static int __init xhci_plat_init(void)
 {
 	xhci_init_driver(&xhci_plat_hc_driver, &xhci_plat_overrides);
-	return platform_driver_register(&usb_xhci_driver);
+	return platform_driver_register(&usb_generic_xhci_driver);
 }
 module_init(xhci_plat_init);
 
 static void __exit xhci_plat_exit(void)
 {
-	platform_driver_unregister(&usb_xhci_driver);
+	platform_driver_unregister(&usb_generic_xhci_driver);
 }
 module_exit(xhci_plat_exit);