25 files changed, 163 insertions, 195 deletions

diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index c4736d1d020c..d1d926f8f9c2 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -290,7 +290,8 @@ config USB_EHCI_EXYNOS
 	tristate "EHCI support for Samsung S5P/Exynos SoC Series"
 	depends on ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST
 	help
-	  Enable support for the Samsung Exynos SOC's on-chip EHCI controller.
+	  Enable support for the Samsung S5Pv210 and Exynos SOC's on-chip EHCI
+	  controller.
 
 config USB_EHCI_MV
 	tristate "EHCI support for Marvell PXA/MMP USB controller"
@@ -563,7 +564,8 @@ config USB_OHCI_EXYNOS
 	tristate "OHCI support for Samsung S5P/Exynos SoC Series"
 	depends on ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST
 	help
-	  Enable support for the Samsung Exynos SOC's on-chip OHCI controller.
+	  Enable support for the Samsung S5Pv210 and Exynos SOC's on-chip OHCI
+	  controller.
 
 config USB_CNS3XXX_OHCI
 	bool "Cavium CNS3XXX OHCI Module (DEPRECATED)"
diff --git a/drivers/usb/host/bcma-hcd.c b/drivers/usb/host/bcma-hcd.c
index 337b425dd4b0..2df52f75f6b3 100644
--- a/drivers/usb/host/bcma-hcd.c
+++ b/drivers/usb/host/bcma-hcd.c
@@ -406,12 +406,9 @@ static int bcma_hcd_probe(struct bcma_device *core)
 		return -ENOMEM;
 	usb_dev->core = core;
 
-	if (core->dev.of_node) {
+	if (core->dev.of_node)
 		usb_dev->gpio_desc = devm_gpiod_get(&core->dev, "vcc",
 						    GPIOD_OUT_HIGH);
-		if (IS_ERR(usb_dev->gpio_desc))
-			return PTR_ERR(usb_dev->gpio_desc);
-	}
 
 	switch (core->id.id) {
 	case BCMA_CORE_USB20_HOST:
diff --git a/drivers/usb/host/ehci-atmel.c b/drivers/usb/host/ehci-atmel.c
index e893467d659c..05d41fd65f25 100644
--- a/drivers/usb/host/ehci-atmel.c
+++ b/drivers/usb/host/ehci-atmel.c
@@ -18,6 +18,8 @@
 #include <linux/platform_device.h>
 #include <linux/usb.h>
 #include <linux/usb/hcd.h>
+#include <linux/usb/phy.h>
+#include <linux/usb/of.h>
 
 #include "ehci.h"
 
@@ -25,6 +27,9 @@
 
 static const char hcd_name[] = "ehci-atmel";
 
+#define EHCI_INSNREG(index)			((index) * 4 + 0x90)
+#define EHCI_INSNREG08_HSIC_EN			BIT(2)
+
 /* interface and function clocks */
 #define hcd_to_atmel_ehci_priv(h) \
 	((struct atmel_ehci_priv *)hcd_to_ehci(h)->priv)
@@ -154,6 +159,9 @@ static int ehci_atmel_drv_probe(struct platform_device *pdev)
 		goto fail_add_hcd;
 	device_wakeup_enable(hcd->self.controller);
 
+	if (of_usb_get_phy_mode(pdev->dev.of_node) == USBPHY_INTERFACE_MODE_HSIC)
+		writel(EHCI_INSNREG08_HSIC_EN, hcd->regs + EHCI_INSNREG(8));
+
 	return retval;
 
 fail_add_hcd:
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 6bdc6d6bf74d..3d82e0b853be 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -26,6 +26,7 @@
 #include <linux/moduleparam.h>
 #include <linux/dma-mapping.h>
 #include <linux/debugfs.h>
+#include <linux/platform_device.h>
 #include <linux/slab.h>
 
 #include <asm/byteorder.h>
@@ -587,7 +588,7 @@ static int ehci_run (struct usb_hcd *hcd)
 	 * hcc_params controls whether ehci->regs->segment must (!!!)
 	 * be used; it constrains QH/ITD/SITD and QTD locations.
 	 * dma_pool consistent memory always uses segment zero.
-	 * streaming mappings for I/O buffers, like pci_map_single(),
+	 * streaming mappings for I/O buffers, like dma_map_single(),
 	 * can return segments above 4GB, if the device allows.
 	 *
 	 * NOTE:  the dma mask is visible through dev->dma_mask, so
@@ -634,7 +635,16 @@ static int ehci_run (struct usb_hcd *hcd)
 	/* Wait until HC become operational */
 	ehci_readl(ehci, &ehci->regs->command);	/* unblock posted writes */
 	msleep(5);
-	rc = ehci_handshake(ehci, &ehci->regs->status, STS_HALT, 0, 100 * 1000);
+
+	/* For Aspeed, STS_HALT also depends on ASS/PSS status.
+	 * Check CMD_RUN instead.
+	 */
+	if (ehci->is_aspeed)
+		rc = ehci_handshake(ehci, &ehci->regs->command, CMD_RUN,
+				    1, 100 * 1000);
+	else
+		rc = ehci_handshake(ehci, &ehci->regs->status, STS_HALT,
+				    0, 100 * 1000);
 
 	up_write(&ehci_cf_port_reset_rwsem);
 
@@ -1278,29 +1288,39 @@ MODULE_LICENSE ("GPL");
 
 #ifdef CONFIG_USB_EHCI_SH
 #include "ehci-sh.c"
-#define PLATFORM_DRIVER		ehci_hcd_sh_driver
 #endif
 
 #ifdef CONFIG_PPC_PS3
 #include "ehci-ps3.c"
-#define	PS3_SYSTEM_BUS_DRIVER	ps3_ehci_driver
 #endif
 
 #ifdef CONFIG_USB_EHCI_HCD_PPC_OF
 #include "ehci-ppc-of.c"
-#define OF_PLATFORM_DRIVER	ehci_hcd_ppc_of_driver
 #endif
 
 #ifdef CONFIG_XPS_USB_HCD_XILINX
 #include "ehci-xilinx-of.c"
-#define XILINX_OF_PLATFORM_DRIVER	ehci_hcd_xilinx_of_driver
 #endif
 
 #ifdef CONFIG_SPARC_LEON
 #include "ehci-grlib.c"
-#define PLATFORM_DRIVER		ehci_grlib_driver
 #endif
 
+static struct platform_driver * const platform_drivers[] = {
+#ifdef CONFIG_USB_EHCI_SH
+	&ehci_hcd_sh_driver,
+#endif
+#ifdef CONFIG_USB_EHCI_HCD_PPC_OF
+	&ehci_hcd_ppc_of_driver,
+#endif
+#ifdef CONFIG_XPS_USB_HCD_XILINX
+	&ehci_hcd_xilinx_of_driver,
+#endif
+#ifdef CONFIG_SPARC_LEON
+	&ehci_grlib_driver,
+#endif
+};
+
 static int __init ehci_hcd_init(void)
 {
 	int retval = 0;
@@ -1324,47 +1344,23 @@ static int __init ehci_hcd_init(void)
 	ehci_debug_root = debugfs_create_dir("ehci", usb_debug_root);
 #endif
 
-#ifdef PLATFORM_DRIVER
-	retval = platform_driver_register(&PLATFORM_DRIVER);
+	retval = platform_register_drivers(platform_drivers, ARRAY_SIZE(platform_drivers));
 	if (retval < 0)
 		goto clean0;
-#endif
 
-#ifdef PS3_SYSTEM_BUS_DRIVER
-	retval = ps3_ehci_driver_register(&PS3_SYSTEM_BUS_DRIVER);
-	if (retval < 0)
-		goto clean2;
-#endif
-
-#ifdef OF_PLATFORM_DRIVER
-	retval = platform_driver_register(&OF_PLATFORM_DRIVER);
+#ifdef CONFIG_PPC_PS3
+	retval = ps3_ehci_driver_register(&ps3_ehci_driver);
 	if (retval < 0)
-		goto clean3;
+		goto clean1;
 #endif
 
-#ifdef XILINX_OF_PLATFORM_DRIVER
-	retval = platform_driver_register(&XILINX_OF_PLATFORM_DRIVER);
-	if (retval < 0)
-		goto clean4;
-#endif
-	return retval;
+	return 0;
 
-#ifdef XILINX_OF_PLATFORM_DRIVER
-	/* platform_driver_unregister(&XILINX_OF_PLATFORM_DRIVER); */
-clean4:
-#endif
-#ifdef OF_PLATFORM_DRIVER
-	platform_driver_unregister(&OF_PLATFORM_DRIVER);
-clean3:
-#endif
-#ifdef PS3_SYSTEM_BUS_DRIVER
-	ps3_ehci_driver_unregister(&PS3_SYSTEM_BUS_DRIVER);
-clean2:
+#ifdef CONFIG_PPC_PS3
+clean1:
 #endif
-#ifdef PLATFORM_DRIVER
-	platform_driver_unregister(&PLATFORM_DRIVER);
+	platform_unregister_drivers(platform_drivers, ARRAY_SIZE(platform_drivers));
 clean0:
-#endif
 #ifdef CONFIG_DYNAMIC_DEBUG
 	debugfs_remove(ehci_debug_root);
 	ehci_debug_root = NULL;
@@ -1376,18 +1372,10 @@ module_init(ehci_hcd_init);
 
 static void __exit ehci_hcd_cleanup(void)
 {
-#ifdef XILINX_OF_PLATFORM_DRIVER
-	platform_driver_unregister(&XILINX_OF_PLATFORM_DRIVER);
-#endif
-#ifdef OF_PLATFORM_DRIVER
-	platform_driver_unregister(&OF_PLATFORM_DRIVER);
-#endif
-#ifdef PLATFORM_DRIVER
-	platform_driver_unregister(&PLATFORM_DRIVER);
-#endif
-#ifdef PS3_SYSTEM_BUS_DRIVER
-	ps3_ehci_driver_unregister(&PS3_SYSTEM_BUS_DRIVER);
+#ifdef CONFIG_PPC_PS3
+	ps3_ehci_driver_unregister(&ps3_ehci_driver);
 #endif
+	platform_unregister_drivers(platform_drivers, ARRAY_SIZE(platform_drivers));
 #ifdef CONFIG_DYNAMIC_DEBUG
 	debugfs_remove(ehci_debug_root);
 #endif
diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c
index c4f6a2559a98..efe30e3be22f 100644
--- a/drivers/usb/host/ehci-hub.c
+++ b/drivers/usb/host/ehci-hub.c
@@ -745,12 +745,13 @@ int ehci_hub_control(
 	unsigned	selector;
 
 	/*
-	 * Avoid underflow while calculating (wIndex & 0xff) - 1.
-	 * The compiler might deduce that wIndex can never be 0 and then
-	 * optimize away the tests for !wIndex below.
+	 * Avoid out-of-bounds values while calculating the port index
+	 * from wIndex.  The compiler doesn't like pointers to invalid
+	 * addresses, even if they are never used.
 	 */
-	temp = wIndex & 0xff;
-	temp -= (temp > 0);
+	temp = (wIndex - 1) & 0xff;
+	if (temp >= HCS_N_PORTS_MAX)
+		temp = 0;
 	status_reg = &ehci->regs->port_status[temp];
 	hostpc_reg = &ehci->regs->hostpc[temp];
 
diff --git a/drivers/usb/host/ehci-mem.c b/drivers/usb/host/ehci-mem.c
index 21307d862af6..4c6c08b675b5 100644
--- a/drivers/usb/host/ehci-mem.c
+++ b/drivers/usb/host/ehci-mem.c
@@ -73,10 +73,9 @@ static struct ehci_qh *ehci_qh_alloc (struct ehci_hcd *ehci, gfp_t flags)
 	if (!qh)
 		goto done;
 	qh->hw = (struct ehci_qh_hw *)
-		dma_pool_alloc(ehci->qh_pool, flags, &dma);
+		dma_pool_zalloc(ehci->qh_pool, flags, &dma);
 	if (!qh->hw)
 		goto fail;
-	memset(qh->hw, 0, sizeof *qh->hw);
 	qh->qh_dma = dma;
 	// INIT_LIST_HEAD (&qh->qh_list);
 	INIT_LIST_HEAD (&qh->qtd_list);
diff --git a/drivers/usb/host/ehci-mv.c b/drivers/usb/host/ehci-mv.c
index 8fd27249ad25..fa46d217dd10 100644
--- a/drivers/usb/host/ehci-mv.c
+++ b/drivers/usb/host/ehci-mv.c
@@ -258,8 +258,6 @@ static int mv_ehci_remove(struct platform_device *pdev)
 	return 0;
 }
 
-MODULE_ALIAS("mv-ehci");
-
 static const struct platform_device_id ehci_id_table[] = {
 	{"pxa-u2oehci", 0},
 	{"pxa-sph", 0},
diff --git a/drivers/usb/host/ehci-platform.c b/drivers/usb/host/ehci-platform.c
index c70f2d0b4aaf..c3dc906274d9 100644
--- a/drivers/usb/host/ehci-platform.c
+++ b/drivers/usb/host/ehci-platform.c
@@ -297,6 +297,12 @@ static int ehci_platform_probe(struct platform_device *dev)
 					  "has-transaction-translator"))
 			hcd->has_tt = 1;
 
+		if (of_device_is_compatible(dev->dev.of_node,
+					    "aspeed,ast2500-ehci") ||
+		    of_device_is_compatible(dev->dev.of_node,
+					    "aspeed,ast2600-ehci"))
+			ehci->is_aspeed = 1;
+
 		if (soc_device_match(quirk_poll_match))
 			priv->quirk_poll = true;
 
diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h
index 80bb823aa9fe..fdd073cc053b 100644
--- a/drivers/usb/host/ehci.h
+++ b/drivers/usb/host/ehci.h
@@ -219,6 +219,7 @@ struct ehci_hcd {			/* one per controller */
 	unsigned		need_oc_pp_cycle:1; /* MPC834X port power */
 	unsigned		imx28_write_fix:1; /* For Freescale i.MX28 */
 	unsigned		spurious_oc:1;
+	unsigned		is_aspeed:1;
 
 	/* required for usb32 quirk */
 	#define OHCI_CTRL_HCFS          (3 << 6)
diff --git a/drivers/usb/host/fotg210-hcd.c b/drivers/usb/host/fotg210-hcd.c
index 4b02ace09f3d..b590995a6b3e 100644
--- a/drivers/usb/host/fotg210-hcd.c
+++ b/drivers/usb/host/fotg210-hcd.c
@@ -1859,10 +1859,9 @@ static struct fotg210_qh *fotg210_qh_alloc(struct fotg210_hcd *fotg210,
 	if (!qh)
 		goto done;
 	qh->hw = (struct fotg210_qh_hw *)
-		dma_pool_alloc(fotg210->qh_pool, flags, &dma);
+		dma_pool_zalloc(fotg210->qh_pool, flags, &dma);
 	if (!qh->hw)
 		goto fail;
-	memset(qh->hw, 0, sizeof(*qh->hw));
 	qh->qh_dma = dma;
 	INIT_LIST_HEAD(&qh->qtd_list);
 
@@ -5023,7 +5022,7 @@ static int fotg210_run(struct usb_hcd *hcd)
 	 * hcc_params controls whether fotg210->regs->segment must (!!!)
 	 * be used; it constrains QH/ITD/SITD and QTD locations.
 	 * dma_pool consistent memory always uses segment zero.
-	 * streaming mappings for I/O buffers, like pci_map_single(),
+	 * streaming mappings for I/O buffers, like dma_map_single(),
 	 * can return segments above 4GB, if the device allows.
 	 *
 	 * NOTE:  the dma mask is visible through dev->dma_mask, so
diff --git a/drivers/usb/host/max3421-hcd.c b/drivers/usb/host/max3421-hcd.c
index 59cc1bc7f12f..30de85a707fe 100644
--- a/drivers/usb/host/max3421-hcd.c
+++ b/drivers/usb/host/max3421-hcd.c
@@ -125,8 +125,6 @@ struct max3421_hcd {
 
 	struct task_struct *spi_thread;
 
-	struct max3421_hcd *next;
-
 	enum max3421_rh_state rh_state;
 	/* lower 16 bits contain port status, upper 16 bits the change mask: */
 	u32 port_status;
@@ -174,8 +172,6 @@ struct max3421_ep {
 	u8 retransmit;			/* packet needs retransmission */
 };
 
-static struct max3421_hcd *max3421_hcd_list;
-
 #define MAX3421_FIFO_SIZE	64
 
 #define MAX3421_SPI_DIR_RD	0	/* read register from MAX3421 */
@@ -1882,9 +1878,8 @@ max3421_probe(struct spi_device *spi)
 	}
 	set_bit(HCD_FLAG_POLL_RH, &hcd->flags);
 	max3421_hcd = hcd_to_max3421(hcd);
-	max3421_hcd->next = max3421_hcd_list;
-	max3421_hcd_list = max3421_hcd;
 	INIT_LIST_HEAD(&max3421_hcd->ep_list);
+	spi_set_drvdata(spi, max3421_hcd);
 
 	max3421_hcd->tx = kmalloc(sizeof(*max3421_hcd->tx), GFP_KERNEL);
 	if (!max3421_hcd->tx)
@@ -1934,28 +1929,18 @@ error:
 static int
 max3421_remove(struct spi_device *spi)
 {
-	struct max3421_hcd *max3421_hcd = NULL, **prev;
-	struct usb_hcd *hcd = NULL;
+	struct max3421_hcd *max3421_hcd;
+	struct usb_hcd *hcd;
 	unsigned long flags;
 
-	for (prev = &max3421_hcd_list; *prev; prev = &(*prev)->next) {
-		max3421_hcd = *prev;
-		hcd = max3421_to_hcd(max3421_hcd);
-		if (hcd->self.controller == &spi->dev)
-			break;
-	}
-	if (!max3421_hcd) {
-		dev_err(&spi->dev, "no MAX3421 HCD found for SPI device %p\n",
-			spi);
-		return -ENODEV;
-	}
+	max3421_hcd = spi_get_drvdata(spi);
+	hcd = max3421_to_hcd(max3421_hcd);
 
 	usb_remove_hcd(hcd);
 
 	spin_lock_irqsave(&max3421_hcd->lock, flags);
 
 	kthread_stop(max3421_hcd->spi_thread);
-	*prev = max3421_hcd->next;
 
 	spin_unlock_irqrestore(&max3421_hcd->lock, flags);
 
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index 1f5e69314a17..666b1c665188 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -191,8 +191,7 @@ static int ohci_urb_enqueue (
 	}
 
 	/* allocate the private part of the URB */
-	urb_priv = kzalloc (sizeof (urb_priv_t) + size * sizeof (struct td *),
-			mem_flags);
+	urb_priv = kzalloc(struct_size(urb_priv, td, size), mem_flags);
 	if (!urb_priv)
 		return -ENOMEM;
 	INIT_LIST_HEAD (&urb_priv->pending);
diff --git a/drivers/usb/host/ohci-hub.c b/drivers/usb/host/ohci-hub.c
index f474f2f9c1e4..90cee192e96d 100644
--- a/drivers/usb/host/ohci-hub.c
+++ b/drivers/usb/host/ohci-hub.c
@@ -91,6 +91,9 @@ __acquires(ohci->lock)
 	update_done_list(ohci);
 	ohci_work(ohci);
 
+	/* All ED unlinks should be finished, no need for SOF interrupts */
+	ohci_writel(ohci, OHCI_INTR_SF, &ohci->regs->intrdisable);
+
 	/*
 	 * Some controllers don't handle "global" suspend properly if
 	 * there are unsuspended ports.  For these controllers, put all
diff --git a/drivers/usb/host/ohci-omap.c b/drivers/usb/host/ohci-omap.c
index 0b3722770760..ded9738392e4 100644
--- a/drivers/usb/host/ohci-omap.c
+++ b/drivers/usb/host/ohci-omap.c
@@ -40,17 +40,6 @@
 #include <mach/usb.h>
 
 
-/* OMAP-1510 OHCI has its own MMU for DMA */
-#define OMAP1510_LB_MEMSIZE	32	/* Should be same as SDRAM size */
-#define OMAP1510_LB_CLOCK_DIV	0xfffec10c
-#define OMAP1510_LB_MMU_CTL	0xfffec208
-#define OMAP1510_LB_MMU_LCK	0xfffec224
-#define OMAP1510_LB_MMU_LD_TLB	0xfffec228
-#define OMAP1510_LB_MMU_CAM_H	0xfffec22c
-#define OMAP1510_LB_MMU_CAM_L	0xfffec230
-#define OMAP1510_LB_MMU_RAM_H	0xfffec234
-#define OMAP1510_LB_MMU_RAM_L	0xfffec238
-
 #define DRIVER_DESC "OHCI OMAP driver"
 
 struct ohci_omap_priv {
@@ -104,61 +93,6 @@ static int omap_ohci_transceiver_power(struct ohci_omap_priv *priv, int on)
 	return 0;
 }
 
-#ifdef CONFIG_ARCH_OMAP15XX
-/*
- * OMAP-1510 specific Local Bus clock on/off
- */
-static int omap_1510_local_bus_power(int on)
-{
-	if (on) {
-		omap_writel((1 << 1) | (1 << 0), OMAP1510_LB_MMU_CTL);
-		udelay(200);
-	} else {
-		omap_writel(0, OMAP1510_LB_MMU_CTL);
-	}
-
-	return 0;
-}
-
-/*
- * OMAP-1510 specific Local Bus initialization
- * NOTE: This assumes 32MB memory size in OMAP1510LB_MEMSIZE.
- *       See also arch/mach-omap/memory.h for __virt_to_dma() and
- *       __dma_to_virt() which need to match with the physical
- *       Local Bus address below.
- */
-static int omap_1510_local_bus_init(void)
-{
-	unsigned int tlb;
-	unsigned long lbaddr, physaddr;
-
-	omap_writel((omap_readl(OMAP1510_LB_CLOCK_DIV) & 0xfffffff8) | 0x4,
-	       OMAP1510_LB_CLOCK_DIV);
-
-	/* Configure the Local Bus MMU table */
-	for (tlb = 0; tlb < OMAP1510_LB_MEMSIZE; tlb++) {
-		lbaddr = tlb * 0x00100000 + OMAP1510_LB_OFFSET;
-		physaddr = tlb * 0x00100000 + PHYS_OFFSET;
-		omap_writel((lbaddr & 0x0fffffff) >> 22, OMAP1510_LB_MMU_CAM_H);
-		omap_writel(((lbaddr & 0x003ffc00) >> 6) | 0xc,
-		       OMAP1510_LB_MMU_CAM_L);
-		omap_writel(physaddr >> 16, OMAP1510_LB_MMU_RAM_H);
-		omap_writel((physaddr & 0x0000fc00) | 0x300, OMAP1510_LB_MMU_RAM_L);
-		omap_writel(tlb << 4, OMAP1510_LB_MMU_LCK);
-		omap_writel(0x1, OMAP1510_LB_MMU_LD_TLB);
-	}
-
-	/* Enable the walking table */
-	omap_writel(omap_readl(OMAP1510_LB_MMU_CTL) | (1 << 3), OMAP1510_LB_MMU_CTL);
-	udelay(200);
-
-	return 0;
-}
-#else
-#define omap_1510_local_bus_power(x)	{}
-#define omap_1510_local_bus_init()	{}
-#endif
-
 #ifdef	CONFIG_USB_OTG
 
 static void start_hnp(struct ohci_hcd *ohci)
@@ -229,10 +163,8 @@ static int ohci_omap_reset(struct usb_hcd *hcd)
 
 	omap_ohci_clock_power(priv, 1);
 
-	if (cpu_is_omap15xx()) {
-		omap_1510_local_bus_power(1);
-		omap_1510_local_bus_init();
-	}
+	if (config->lb_reset)
+		config->lb_reset();
 
 	ret = ohci_setup(hcd);
 	if (ret < 0)
diff --git a/drivers/usb/host/ohci-tmio.c b/drivers/usb/host/ohci-tmio.c
index 08ec2ab0d95a..3f3d62dc0674 100644
--- a/drivers/usb/host/ohci-tmio.c
+++ b/drivers/usb/host/ohci-tmio.c
@@ -199,7 +199,7 @@ static int ohci_hcd_tmio_drv_probe(struct platform_device *dev)
 	if (usb_disabled())
 		return -ENODEV;
 
-	if (!cell)
+	if (!cell || !regs || !config || !sram)
 		return -EINVAL;
 
 	if (irq < 0)
diff --git a/drivers/usb/host/oxu210hp-hcd.c b/drivers/usb/host/oxu210hp-hcd.c
index 4300326b3730..e82ff2a49672 100644
--- a/drivers/usb/host/oxu210hp-hcd.c
+++ b/drivers/usb/host/oxu210hp-hcd.c
@@ -3131,7 +3131,7 @@ static int oxu_run(struct usb_hcd *hcd)
 	/* hcc_params controls whether oxu->regs->segment must (!!!)
 	 * be used; it constrains QH/ITD/SITD and QTD locations.
 	 * dma_pool consistent memory always uses segment zero.
-	 * streaming mappings for I/O buffers, like pci_map_single(),
+	 * streaming mappings for I/O buffers, like dma_map_single(),
 	 * can return segments above 4GB, if the device allows.
 	 *
 	 * NOTE:  the dma mask is visible through dev->dma_mask, so
diff --git a/drivers/usb/host/xhci-dbgtty.c b/drivers/usb/host/xhci-dbgtty.c
index 6e784f2fc26d..eb46e642e87a 100644
--- a/drivers/usb/host/xhci-dbgtty.c
+++ b/drivers/usb/host/xhci-dbgtty.c
@@ -408,40 +408,38 @@ static int xhci_dbc_tty_register_device(struct xhci_dbc *dbc)
 		return -EBUSY;
 
 	xhci_dbc_tty_init_port(dbc, port);
-	tty_dev = tty_port_register_device(&port->port,
-					   dbc_tty_driver, 0, NULL);
-	if (IS_ERR(tty_dev)) {
-		ret = PTR_ERR(tty_dev);
-		goto register_fail;
-	}
 
 	ret = kfifo_alloc(&port->write_fifo, DBC_WRITE_BUF_SIZE, GFP_KERNEL);
 	if (ret)
-		goto buf_alloc_fail;
+		goto err_exit_port;
 
 	ret = xhci_dbc_alloc_requests(dbc, BULK_IN, &port->read_pool,
 				      dbc_read_complete);
 	if (ret)
-		goto request_fail;
+		goto err_free_fifo;
 
 	ret = xhci_dbc_alloc_requests(dbc, BULK_OUT, &port->write_pool,
 				      dbc_write_complete);
 	if (ret)
-		goto request_fail;
+		goto err_free_requests;
+
+	tty_dev = tty_port_register_device(&port->port,
+					   dbc_tty_driver, 0, NULL);
+	if (IS_ERR(tty_dev)) {
+		ret = PTR_ERR(tty_dev);
+		goto err_free_requests;
+	}
 
 	port->registered = true;
 
 	return 0;
 
-request_fail:
+err_free_requests:
 	xhci_dbc_free_requests(&port->read_pool);
 	xhci_dbc_free_requests(&port->write_pool);
+err_free_fifo:
 	kfifo_free(&port->write_fifo);
-
-buf_alloc_fail:
-	tty_unregister_device(dbc_tty_driver, 0);
-
-register_fail:
+err_exit_port:
 	xhci_dbc_tty_exit_port(port);
 
 	dev_err(dbc->dev, "can't register tty port, err %d\n", ret);
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index a3f875eea751..af946c42b6f0 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -257,7 +257,6 @@ static void xhci_common_hub_descriptor(struct xhci_hcd *xhci,
 {
 	u16 temp;
 
-	desc->bPwrOn2PwrGood = 10;	/* xhci section 5.4.9 says 20ms max */
 	desc->bHubContrCurrent = 0;
 
 	desc->bNbrPorts = ports;
@@ -292,6 +291,7 @@ static void xhci_usb2_hub_descriptor(struct usb_hcd *hcd, struct xhci_hcd *xhci,
 	desc->bDescriptorType = USB_DT_HUB;
 	temp = 1 + (ports / 8);
 	desc->bDescLength = USB_DT_HUB_NONVAR_SIZE + 2 * temp;
+	desc->bPwrOn2PwrGood = 10;	/* xhci section 5.4.8 says 20ms */
 
 	/* The Device Removable bits are reported on a byte granularity.
 	 * If the port doesn't exist within that byte, the bit is set to 0.
@@ -344,6 +344,7 @@ static void xhci_usb3_hub_descriptor(struct usb_hcd *hcd, struct xhci_hcd *xhci,
 	xhci_common_hub_descriptor(xhci, desc, ports);
 	desc->bDescriptorType = USB_DT_SS_HUB;
 	desc->bDescLength = USB_DT_SS_HUB_SIZE;
+	desc->bPwrOn2PwrGood = 50;	/* usb 3.1 may fail if less than 100ms */
 
 	/* header decode latency should be zero for roothubs,
 	 * see section 4.23.5.2.
diff --git a/drivers/usb/host/xhci-mtk-sch.c b/drivers/usb/host/xhci-mtk-sch.c
index 134f4789bd89..1edef7527c11 100644
--- a/drivers/usb/host/xhci-mtk-sch.c
+++ b/drivers/usb/host/xhci-mtk-sch.c
@@ -734,7 +734,7 @@ static void drop_ep_quirk(struct usb_hcd *hcd, struct usb_device *udev,
 	if (!need_bw_sch(udev, ep))
 		return;
 
-	xhci_err(xhci, "%s %s\n", __func__, decode_ep(ep, udev->speed));
+	xhci_dbg(xhci, "%s %s\n", __func__, decode_ep(ep, udev->speed));
 
 	hash_for_each_possible_safe(mtk->sch_ep_hash, sch_ep,
 				    hn, hentry, (unsigned long)ep) {
diff --git a/drivers/usb/host/xhci-mtk.c b/drivers/usb/host/xhci-mtk.c
index c53f6f276d5c..58a0eae4f41b 100644
--- a/drivers/usb/host/xhci-mtk.c
+++ b/drivers/usb/host/xhci-mtk.c
@@ -602,7 +602,7 @@ static int xhci_mtk_probe(struct platform_device *pdev)
 		goto dealloc_usb2_hcd;
 
 	if (wakeup_irq > 0) {
-		ret = dev_pm_set_dedicated_wake_irq(dev, wakeup_irq);
+		ret = dev_pm_set_dedicated_wake_irq_reverse(dev, wakeup_irq);
 		if (ret) {
 			dev_err(dev, "set wakeup irq %d failed\n", wakeup_irq);
 			goto dealloc_usb3_hcd;
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 2c9f25ca8edd..92adf6107864 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -30,6 +30,7 @@
 #define PCI_VENDOR_ID_FRESCO_LOGIC	0x1b73
 #define PCI_DEVICE_ID_FRESCO_LOGIC_PDK	0x1000
 #define PCI_DEVICE_ID_FRESCO_LOGIC_FL1009	0x1009
+#define PCI_DEVICE_ID_FRESCO_LOGIC_FL1100	0x1100
 #define PCI_DEVICE_ID_FRESCO_LOGIC_FL1400	0x1400
 
 #define PCI_VENDOR_ID_ETRON		0x1b6f
@@ -64,6 +65,13 @@
 #define PCI_DEVICE_ID_AMD_PROMONTORYA_3			0x43ba
 #define PCI_DEVICE_ID_AMD_PROMONTORYA_2			0x43bb
 #define PCI_DEVICE_ID_AMD_PROMONTORYA_1			0x43bc
+#define PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_1		0x161a
+#define PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_2		0x161b
+#define PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_3		0x161d
+#define PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_4		0x161e
+#define PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_5		0x15d6
+#define PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_6		0x15d7
+
 #define PCI_DEVICE_ID_ASMEDIA_1042_XHCI			0x1042
 #define PCI_DEVICE_ID_ASMEDIA_1042A_XHCI		0x1142
 #define PCI_DEVICE_ID_ASMEDIA_1142_XHCI			0x1242
@@ -103,7 +111,7 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
 	struct xhci_driver_data         *driver_data;
 	const struct pci_device_id      *id;
 
-	id = pci_match_id(pdev->driver->id_table, pdev);
+	id = pci_match_id(to_pci_driver(pdev->dev.driver)->id_table, pdev);
 
 	if (id && id->driver_data) {
 		driver_data = (struct xhci_driver_data *)id->driver_data;
@@ -113,6 +121,7 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
 	/* Look for vendor-specific quirks */
 	if (pdev->vendor == PCI_VENDOR_ID_FRESCO_LOGIC &&
 			(pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_PDK ||
+			 pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_FL1100 ||
 			 pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_FL1400)) {
 		if (pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_PDK &&
 				pdev->revision == 0x0) {
@@ -279,8 +288,10 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
 			pdev->device == 0x3432)
 		xhci->quirks |= XHCI_BROKEN_STREAMS;
 
-	if (pdev->vendor == PCI_VENDOR_ID_VIA && pdev->device == 0x3483)
+	if (pdev->vendor == PCI_VENDOR_ID_VIA && pdev->device == 0x3483) {
 		xhci->quirks |= XHCI_LPM_SUPPORT;
+		xhci->quirks |= XHCI_EP_CTX_BROKEN_DCS;
+	}
 
 	if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA &&
 		pdev->device == PCI_DEVICE_ID_ASMEDIA_1042_XHCI)
@@ -313,6 +324,15 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
 	     pdev->device == PCI_DEVICE_ID_AMD_PROMONTORYA_4))
 		xhci->quirks |= XHCI_NO_SOFT_RETRY;
 
+	if (pdev->vendor == PCI_VENDOR_ID_AMD &&
+	    (pdev->device == PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_1 ||
+	    pdev->device == PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_2 ||
+	    pdev->device == PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_3 ||
+	    pdev->device == PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_4 ||
+	    pdev->device == PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_5 ||
+	    pdev->device == PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_6))
+		xhci->quirks |= XHCI_DEFAULT_PM_RUNTIME_ALLOW;
+
 	if (xhci->quirks & XHCI_RESET_ON_RESUME)
 		xhci_dbg_trace(xhci, trace_xhci_dbg_quirks,
 				"QUIRK: Resetting on resume");
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index e676749f543b..311597bba80e 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -366,16 +366,22 @@ static void xhci_handle_stopped_cmd_ring(struct xhci_hcd *xhci,
 /* Must be called with xhci->lock held, releases and aquires lock back */
 static int xhci_abort_cmd_ring(struct xhci_hcd *xhci, unsigned long flags)
 {
-	u64 temp_64;
+	u32 temp_32;
 	int ret;
 
 	xhci_dbg(xhci, "Abort command ring\n");
 
 	reinit_completion(&xhci->cmd_ring_stop_completion);
 
-	temp_64 = xhci_read_64(xhci, &xhci->op_regs->cmd_ring);
-	xhci_write_64(xhci, temp_64 | CMD_RING_ABORT,
-			&xhci->op_regs->cmd_ring);
+	/*
+	 * The control bits like command stop, abort are located in lower
+	 * dword of the command ring control register. Limit the write
+	 * to the lower dword to avoid corrupting the command ring pointer
+	 * in case if the command ring is stopped by the time upper dword
+	 * is written.
+	 */
+	temp_32 = readl(&xhci->op_regs->cmd_ring);
+	writel(temp_32 | CMD_RING_ABORT, &xhci->op_regs->cmd_ring);
 
 	/* Section 4.6.1.2 of xHCI 1.0 spec says software should also time the
 	 * completion of the Command Abort operation. If CRR is not negated in 5
@@ -559,8 +565,11 @@ static int xhci_move_dequeue_past_td(struct xhci_hcd *xhci,
 	struct xhci_ring *ep_ring;
 	struct xhci_command *cmd;
 	struct xhci_segment *new_seg;
+	struct xhci_segment *halted_seg = NULL;
 	union xhci_trb *new_deq;
 	int new_cycle;
+	union xhci_trb *halted_trb;
+	int index = 0;
 	dma_addr_t addr;
 	u64 hw_dequeue;
 	bool cycle_found = false;
@@ -598,7 +607,27 @@ static int xhci_move_dequeue_past_td(struct xhci_hcd *xhci,
 	hw_dequeue = xhci_get_hw_deq(xhci, dev, ep_index, stream_id);
 	new_seg = ep_ring->deq_seg;
 	new_deq = ep_ring->dequeue;
-	new_cycle = hw_dequeue & 0x1;
+
+	/*
+	 * Quirk: xHC write-back of the DCS field in the hardware dequeue
+	 * pointer is wrong - use the cycle state of the TRB pointed to by
+	 * the dequeue pointer.
+	 */
+	if (xhci->quirks & XHCI_EP_CTX_BROKEN_DCS &&
+	    !(ep->ep_state & EP_HAS_STREAMS))
+		halted_seg = trb_in_td(xhci, td->start_seg,
+				       td->first_trb, td->last_trb,
+				       hw_dequeue & ~0xf, false);
+	if (halted_seg) {
+		index = ((dma_addr_t)(hw_dequeue & ~0xf) - halted_seg->dma) /
+			 sizeof(*halted_trb);
+		halted_trb = &halted_seg->trbs[index];
+		new_cycle = halted_trb->generic.field[3] & 0x1;
+		xhci_dbg(xhci, "Endpoint DCS = %d TRB index = %d cycle = %d\n",
+			 (u8)(hw_dequeue & 0x1), index, new_cycle);
+	} else {
+		new_cycle = hw_dequeue & 0x1;
+	}
 
 	/*
 	 * We want to find the pointer, segment and cycle state of the new trb
diff --git a/drivers/usb/host/xhci-tegra.c b/drivers/usb/host/xhci-tegra.c
index 575fa89a783f..1bf494b649bd 100644
--- a/drivers/usb/host/xhci-tegra.c
+++ b/drivers/usb/host/xhci-tegra.c
@@ -1787,7 +1787,6 @@ static int tegra_xusb_remove(struct platform_device *pdev)
 	return 0;
 }
 
-#if IS_ENABLED(CONFIG_PM) || IS_ENABLED(CONFIG_PM_SLEEP)
 static bool xhci_hub_ports_suspended(struct xhci_hub *hub)
 {
 	struct device *dev = hub->hcd->self.controller;
@@ -2102,7 +2101,7 @@ out:
 	return err;
 }
 
-static int tegra_xusb_suspend(struct device *dev)
+static __maybe_unused int tegra_xusb_suspend(struct device *dev)
 {
 	struct tegra_xusb *tegra = dev_get_drvdata(dev);
 	int err;
@@ -2144,7 +2143,7 @@ out:
 	return err;
 }
 
-static int tegra_xusb_resume(struct device *dev)
+static __maybe_unused int tegra_xusb_resume(struct device *dev)
 {
 	struct tegra_xusb *tegra = dev_get_drvdata(dev);
 	int err;
@@ -2174,10 +2173,8 @@ static int tegra_xusb_resume(struct device *dev)
 
 	return 0;
 }
-#endif
 
-#ifdef CONFIG_PM
-static int tegra_xusb_runtime_suspend(struct device *dev)
+static __maybe_unused int tegra_xusb_runtime_suspend(struct device *dev)
 {
 	struct tegra_xusb *tegra = dev_get_drvdata(dev);
 	int ret;
@@ -2190,7 +2187,7 @@ static int tegra_xusb_runtime_suspend(struct device *dev)
 	return ret;
 }
 
-static int tegra_xusb_runtime_resume(struct device *dev)
+static __maybe_unused int tegra_xusb_runtime_resume(struct device *dev)
 {
 	struct tegra_xusb *tegra = dev_get_drvdata(dev);
 	int err;
@@ -2201,7 +2198,6 @@ static int tegra_xusb_runtime_resume(struct device *dev)
 
 	return err;
 }
-#endif
 
 static const struct dev_pm_ops tegra_xusb_pm_ops = {
 	SET_RUNTIME_PM_OPS(tegra_xusb_runtime_suspend,
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index f3dabd02382c..902f410874e8 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -3213,10 +3213,13 @@ static void xhci_endpoint_reset(struct usb_hcd *hcd,
 		return;
 
 	/* Bail out if toggle is already being cleared by a endpoint reset */
+	spin_lock_irqsave(&xhci->lock, flags);
 	if (ep->ep_state & EP_HARD_CLEAR_TOGGLE) {
 		ep->ep_state &= ~EP_HARD_CLEAR_TOGGLE;
+		spin_unlock_irqrestore(&xhci->lock, flags);
 		return;
 	}
+	spin_unlock_irqrestore(&xhci->lock, flags);
 	/* Only interrupt and bulk ep's use data toggle, USB2 spec 5.5.4-> */
 	if (usb_endpoint_xfer_control(&host_ep->desc) ||
 	    usb_endpoint_xfer_isoc(&host_ep->desc))
@@ -3302,8 +3305,10 @@ static void xhci_endpoint_reset(struct usb_hcd *hcd,
 	xhci_free_command(xhci, cfg_cmd);
 cleanup:
 	xhci_free_command(xhci, stop_cmd);
+	spin_lock_irqsave(&xhci->lock, flags);
 	if (ep->ep_state & EP_SOFT_CLEAR_TOGGLE)
 		ep->ep_state &= ~EP_SOFT_CLEAR_TOGGLE;
+	spin_unlock_irqrestore(&xhci->lock, flags);
 }
 
 static int xhci_check_streams_endpoint(struct xhci_hcd *xhci,
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index dca6181c33fd..5a75fe563123 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1899,6 +1899,7 @@ struct xhci_hcd {
 #define XHCI_SG_TRB_CACHE_SIZE_QUIRK	BIT_ULL(39)
 #define XHCI_NO_SOFT_RETRY	BIT_ULL(40)
 #define XHCI_BROKEN_D3COLD	BIT_ULL(41)
+#define XHCI_EP_CTX_BROKEN_DCS	BIT_ULL(42)
 
 	unsigned int		num_active_eps;
 	unsigned int		limit_active_eps;