Merge tag 'usb-3.14-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Here are a number of USB fixes for reported issues for 3.14-rc4

  The majority of these are for USB gadget, phy, and musb driver issues.
  And there's a few new device ids thrown in for good measure"

* tag 'usb-3.14-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  usb: chipidea: need to mask when writting endptflush and endptprime
  usb: musb: correct use of schedule_delayed_work()
  usb: phy: msm: fix compilation errors when !CONFIG_PM_SLEEP
  usb: gadget: fix NULL pointer dereference
  usb: gadget: printer: using gadget_is_otg to check otg support at runtime
  phy: let phy_provider_register be the last step in registering PHY
  phy-core: Don't allow building phy-core as a module
  phy-core: Don't propagate -ENOSUPP from phy_pm_runtime_get_sync to caller
  phy-core: phy_get: Leave error logging to the caller
  phy,phy-bcm-kona-usb2.c: Add dependency on HAS_IOMEM
  usb: musb: correct use of schedule_delayed_work()
  usb: musb: do not sleep in atomic context
  USB: serial: option: blacklist interface 4 for Cinterion PHS8 and PXS8
  USB: EHCI: add delay during suspend to prevent erroneous wakeups
  usb: gadget: bcm63xx_udc: fix build failure on DMA channel code
  usb: musb: do not sleep in atomic context
  usb: gadget: s3c2410_udc: Fix build error
  usb: musb: core: Fix remote-wakeup resume
  usb: musb: host: Fix SuperSpeed hub enumeration
  usb: musb: fix obex in g_nokia.ko causing kernel panic

19 files changed, 159 insertions, 111 deletions

diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig
index afa2354f6600..c7a551c2d5f1 100644
--- a/drivers/phy/Kconfig
+++ b/drivers/phy/Kconfig
@@ -5,7 +5,7 @@
 menu "PHY Subsystem"
 
 config GENERIC_PHY
-        tristate "PHY Core"
+        bool "PHY Core"
         help
           Generic PHY support.
 
@@ -61,6 +61,7 @@ config PHY_EXYNOS_DP_VIDEO
 config BCM_KONA_USB2_PHY
         tristate "Broadcom Kona USB2 PHY Driver"
         depends on GENERIC_PHY
+        depends on HAS_IOMEM
         help
           Enable this to support the Broadcom Kona USB 2.0 PHY.
 
diff --git a/drivers/phy/phy-core.c b/drivers/phy/phy-core.c
index 5f5b0f4be5be..6c738376daff 100644
--- a/drivers/phy/phy-core.c
+++ b/drivers/phy/phy-core.c
@@ -176,6 +176,8 @@ int phy_init(struct phy *phy)
                         dev_err(&phy->dev, "phy init failed --> %d\n", ret);
                         goto out;
                 }
+        } else {
+                ret = 0; /* Override possible ret == -ENOTSUPP */
         }
         ++phy->init_count;
 
@@ -232,6 +234,8 @@ int phy_power_on(struct phy *phy)
                         dev_err(&phy->dev, "phy poweron failed --> %d\n", ret);
                         goto out;
                 }
+        } else {
+                ret = 0; /* Override possible ret == -ENOTSUPP */
         }
         ++phy->power_count;
         mutex_unlock(&phy->mutex);
@@ -404,17 +408,11 @@ struct phy *phy_get(struct device *dev, const char *string)
                 index = of_property_match_string(dev->of_node, "phy-names",
                         string);
                 phy = of_phy_get(dev, index);
-                if (IS_ERR(phy)) {
-                        dev_err(dev, "unable to find phy\n");
-                        return phy;
-                }
         } else {
                 phy = phy_lookup(dev, string);
-                if (IS_ERR(phy)) {
-                        dev_err(dev, "unable to find phy\n");
-                        return phy;
-                }
         }
+        if (IS_ERR(phy))
+                return phy;
 
         if (!try_module_get(phy->ops->owner))
                 return ERR_PTR(-EPROBE_DEFER);
diff --git a/drivers/phy/phy-exynos-dp-video.c b/drivers/phy/phy-exynos-dp-video.c
index 1dbe6ce7b2ce..0786fef842e7 100644
--- a/drivers/phy/phy-exynos-dp-video.c
+++ b/drivers/phy/phy-exynos-dp-video.c
@@ -76,10 +76,6 @@ static int exynos_dp_video_phy_probe(struct platform_device *pdev)
         if (IS_ERR(state->regs))
                 return PTR_ERR(state->regs);
 
-        phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate);
-        if (IS_ERR(phy_provider))
-                return PTR_ERR(phy_provider);
-
         phy = devm_phy_create(dev, &exynos_dp_video_phy_ops, NULL);
         if (IS_ERR(phy)) {
                 dev_err(dev, "failed to create Display Port PHY\n");
@@ -87,6 +83,10 @@ static int exynos_dp_video_phy_probe(struct platform_device *pdev)
         }
         phy_set_drvdata(phy, state);
 
+        phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate);
+        if (IS_ERR(phy_provider))
+                return PTR_ERR(phy_provider);
+
         return 0;
 }
 
diff --git a/drivers/phy/phy-exynos-mipi-video.c b/drivers/phy/phy-exynos-mipi-video.c
index 0c5efab11af1..7f139326a642 100644
--- a/drivers/phy/phy-exynos-mipi-video.c
+++ b/drivers/phy/phy-exynos-mipi-video.c
@@ -134,11 +134,6 @@ static int exynos_mipi_video_phy_probe(struct platform_device *pdev)
         dev_set_drvdata(dev, state);
         spin_lock_init(&state->slock);
 
-        phy_provider = devm_of_phy_provider_register(dev,
-                                        exynos_mipi_video_phy_xlate);
-        if (IS_ERR(phy_provider))
-                return PTR_ERR(phy_provider);
-
         for (i = 0; i < EXYNOS_MIPI_PHYS_NUM; i++) {
                 struct phy *phy = devm_phy_create(dev,
                                         &exynos_mipi_video_phy_ops, NULL);
@@ -152,6 +147,11 @@ static int exynos_mipi_video_phy_probe(struct platform_device *pdev)
                 phy_set_drvdata(phy, &state->phys[i]);
         }
 
+        phy_provider = devm_of_phy_provider_register(dev,
+                                        exynos_mipi_video_phy_xlate);
+        if (IS_ERR(phy_provider))
+                return PTR_ERR(phy_provider);
+
         return 0;
 }
 
diff --git a/drivers/phy/phy-mvebu-sata.c b/drivers/phy/phy-mvebu-sata.c
index d43786f62437..d70ecd6a1b3f 100644
--- a/drivers/phy/phy-mvebu-sata.c
+++ b/drivers/phy/phy-mvebu-sata.c
@@ -99,17 +99,17 @@ static int phy_mvebu_sata_probe(struct platform_device *pdev)
         if (IS_ERR(priv->clk))
                 return PTR_ERR(priv->clk);
 
-        phy_provider = devm_of_phy_provider_register(&pdev->dev,
-                                                     of_phy_simple_xlate);
-        if (IS_ERR(phy_provider))
-                return PTR_ERR(phy_provider);
-
         phy = devm_phy_create(&pdev->dev, &phy_mvebu_sata_ops, NULL);
         if (IS_ERR(phy))
                 return PTR_ERR(phy);
 
         phy_set_drvdata(phy, priv);
 
+        phy_provider = devm_of_phy_provider_register(&pdev->dev,
+                                                     of_phy_simple_xlate);
+        if (IS_ERR(phy_provider))
+                return PTR_ERR(phy_provider);
+
         /* The boot loader may of left it on. Turn it off. */
         phy_mvebu_sata_power_off(phy);
 
diff --git a/drivers/phy/phy-omap-usb2.c b/drivers/phy/phy-omap-usb2.c
index bfc5c337f99a..7699752fba11 100644
--- a/drivers/phy/phy-omap-usb2.c
+++ b/drivers/phy/phy-omap-usb2.c
@@ -177,11 +177,6 @@ static int omap_usb2_probe(struct platform_device *pdev)
         phy->phy.otg            = otg;
         phy->phy.type           = USB_PHY_TYPE_USB2;
 
-        phy_provider = devm_of_phy_provider_register(phy->dev,
-                        of_phy_simple_xlate);
-        if (IS_ERR(phy_provider))
-                return PTR_ERR(phy_provider);
-
         control_node = of_parse_phandle(node, "ctrl-module", 0);
         if (!control_node) {
                 dev_err(&pdev->dev, "Failed to get control device phandle\n");
@@ -214,6 +209,11 @@ static int omap_usb2_probe(struct platform_device *pdev)
 
         phy_set_drvdata(generic_phy, phy);
 
+        phy_provider = devm_of_phy_provider_register(phy->dev,
+                        of_phy_simple_xlate);
+        if (IS_ERR(phy_provider))
+                return PTR_ERR(phy_provider);
+
         phy->wkupclk = devm_clk_get(phy->dev, "usb_phy_cm_clk32k");
         if (IS_ERR(phy->wkupclk)) {
                 dev_err(&pdev->dev, "unable to get usb_phy_cm_clk32k\n");
diff --git a/drivers/phy/phy-twl4030-usb.c b/drivers/phy/phy-twl4030-usb.c
index daf65e68aaab..c3ace1db8136 100644
--- a/drivers/phy/phy-twl4030-usb.c
+++ b/drivers/phy/phy-twl4030-usb.c
@@ -695,11 +695,6 @@ static int twl4030_usb_probe(struct platform_device *pdev)
         otg->set_host           = twl4030_set_host;
         otg->set_peripheral     = twl4030_set_peripheral;
 
-        phy_provider = devm_of_phy_provider_register(twl->dev,
-                of_phy_simple_xlate);
-        if (IS_ERR(phy_provider))
-                return PTR_ERR(phy_provider);
-
         phy = devm_phy_create(twl->dev, &ops, init_data);
         if (IS_ERR(phy)) {
                 dev_dbg(&pdev->dev, "Failed to create PHY\n");
@@ -708,6 +703,11 @@ static int twl4030_usb_probe(struct platform_device *pdev)
 
         phy_set_drvdata(phy, twl);
 
+        phy_provider = devm_of_phy_provider_register(twl->dev,
+                of_phy_simple_xlate);
+        if (IS_ERR(phy_provider))
+                return PTR_ERR(phy_provider);
+
         /* init spinlock for workqueue */
         spin_lock_init(&twl->lock);
 
diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c
index 80de2f88ed2c..4ab2cb62dfce 100644
--- a/drivers/usb/chipidea/udc.c
+++ b/drivers/usb/chipidea/udc.c
@@ -105,7 +105,7 @@ static int hw_ep_flush(struct ci_hdrc *ci, int num, int dir)
 
         do {
                 /* flush any pending transfer */
-                hw_write(ci, OP_ENDPTFLUSH, BIT(n), BIT(n));
+                hw_write(ci, OP_ENDPTFLUSH, ~0, BIT(n));
                 while (hw_read(ci, OP_ENDPTFLUSH, BIT(n)))
                         cpu_relax();
         } while (hw_read(ci, OP_ENDPTSTAT, BIT(n)));
@@ -205,7 +205,7 @@ static int hw_ep_prime(struct ci_hdrc *ci, int num, int dir, int is_ctrl)
         if (is_ctrl && dir == RX && hw_read(ci, OP_ENDPTSETUPSTAT, BIT(num)))
                 return -EAGAIN;
 
-        hw_write(ci, OP_ENDPTPRIME, BIT(n), BIT(n));
+        hw_write(ci, OP_ENDPTPRIME, ~0, BIT(n));
 
         while (hw_read(ci, OP_ENDPTPRIME, BIT(n)))
                 cpu_relax();
diff --git a/drivers/usb/gadget/bcm63xx_udc.c b/drivers/usb/gadget/bcm63xx_udc.c
index 888fbb43b338..e969eb809a85 100644
--- a/drivers/usb/gadget/bcm63xx_udc.c
+++ b/drivers/usb/gadget/bcm63xx_udc.c
@@ -360,24 +360,30 @@ static inline void usb_dma_writel(struct bcm63xx_udc *udc, u32 val, u32 off)
         bcm_writel(val, udc->iudma_regs + off);
 }
 
-static inline u32 usb_dmac_readl(struct bcm63xx_udc *udc, u32 off)
+static inline u32 usb_dmac_readl(struct bcm63xx_udc *udc, u32 off, int chan)
 {
-        return bcm_readl(udc->iudma_regs + IUDMA_DMAC_OFFSET + off);
+        return bcm_readl(udc->iudma_regs + IUDMA_DMAC_OFFSET + off +
+                        (ENETDMA_CHAN_WIDTH * chan));
 }
 
-static inline void usb_dmac_writel(struct bcm63xx_udc *udc, u32 val, u32 off)
+static inline void usb_dmac_writel(struct bcm63xx_udc *udc, u32 val, u32 off,
+                                        int chan)
 {
-        bcm_writel(val, udc->iudma_regs + IUDMA_DMAC_OFFSET + off);
+        bcm_writel(val, udc->iudma_regs + IUDMA_DMAC_OFFSET + off +
+                        (ENETDMA_CHAN_WIDTH * chan));
 }
 
-static inline u32 usb_dmas_readl(struct bcm63xx_udc *udc, u32 off)
+static inline u32 usb_dmas_readl(struct bcm63xx_udc *udc, u32 off, int chan)
 {
-        return bcm_readl(udc->iudma_regs + IUDMA_DMAS_OFFSET + off);
+        return bcm_readl(udc->iudma_regs + IUDMA_DMAS_OFFSET + off +
+                        (ENETDMA_CHAN_WIDTH * chan));
 }
 
-static inline void usb_dmas_writel(struct bcm63xx_udc *udc, u32 val, u32 off)
+static inline void usb_dmas_writel(struct bcm63xx_udc *udc, u32 val, u32 off,
+                                        int chan)
 {
-        bcm_writel(val, udc->iudma_regs + IUDMA_DMAS_OFFSET + off);
+        bcm_writel(val, udc->iudma_regs + IUDMA_DMAS_OFFSET + off +
+                        (ENETDMA_CHAN_WIDTH * chan));
 }
 
 static inline void set_clocks(struct bcm63xx_udc *udc, bool is_enabled)
@@ -638,7 +644,7 @@ static void iudma_write(struct bcm63xx_udc *udc, struct iudma_ch *iudma,
         } while (!last_bd);
 
         usb_dmac_writel(udc, ENETDMAC_CHANCFG_EN_MASK,
-                        ENETDMAC_CHANCFG_REG(iudma->ch_idx));
+                        ENETDMAC_CHANCFG_REG, iudma->ch_idx);
 }
 
 /**
@@ -694,9 +700,9 @@ static void iudma_reset_channel(struct bcm63xx_udc *udc, struct iudma_ch *iudma)
                 bcm63xx_fifo_reset_ep(udc, max(0, iudma->ep_num));
 
         /* stop DMA, then wait for the hardware to wrap up */
-        usb_dmac_writel(udc, 0, ENETDMAC_CHANCFG_REG(ch_idx));
+        usb_dmac_writel(udc, 0, ENETDMAC_CHANCFG_REG, ch_idx);
 
-        while (usb_dmac_readl(udc, ENETDMAC_CHANCFG_REG(ch_idx)) &
+        while (usb_dmac_readl(udc, ENETDMAC_CHANCFG_REG, ch_idx) &
                                    ENETDMAC_CHANCFG_EN_MASK) {
                 udelay(1);
 
@@ -713,10 +719,10 @@ static void iudma_reset_channel(struct bcm63xx_udc *udc, struct iudma_ch *iudma)
                         dev_warn(udc->dev, "forcibly halting IUDMA channel %d\n",
                                  ch_idx);
                         usb_dmac_writel(udc, ENETDMAC_CHANCFG_BUFHALT_MASK,
-                                        ENETDMAC_CHANCFG_REG(ch_idx));
+                                        ENETDMAC_CHANCFG_REG, ch_idx);
                 }
         }
-        usb_dmac_writel(udc, ~0, ENETDMAC_IR_REG(ch_idx));
+        usb_dmac_writel(udc, ~0, ENETDMAC_IR_REG, ch_idx);
 
         /* don't leave "live" HW-owned entries for the next guy to step on */
         for (d = iudma->bd_ring; d <= iudma->end_bd; d++)
@@ -728,11 +734,11 @@ static void iudma_reset_channel(struct bcm63xx_udc *udc, struct iudma_ch *iudma)
 
         /* set up IRQs, UBUS burst size, and BD base for this channel */
         usb_dmac_writel(udc, ENETDMAC_IR_BUFDONE_MASK,
-                        ENETDMAC_IRMASK_REG(ch_idx));
-        usb_dmac_writel(udc, 8, ENETDMAC_MAXBURST_REG(ch_idx));
+                        ENETDMAC_IRMASK_REG, ch_idx);
+        usb_dmac_writel(udc, 8, ENETDMAC_MAXBURST_REG, ch_idx);
 
-        usb_dmas_writel(udc, iudma->bd_ring_dma, ENETDMAS_RSTART_REG(ch_idx));
-        usb_dmas_writel(udc, 0, ENETDMAS_SRAM2_REG(ch_idx));
+        usb_dmas_writel(udc, iudma->bd_ring_dma, ENETDMAS_RSTART_REG, ch_idx);
+        usb_dmas_writel(udc, 0, ENETDMAS_SRAM2_REG, ch_idx);
 }
 
 /**
@@ -2035,7 +2041,7 @@ static irqreturn_t bcm63xx_udc_data_isr(int irq, void *dev_id)
         spin_lock(&udc->lock);
 
         usb_dmac_writel(udc, ENETDMAC_IR_BUFDONE_MASK,
-                        ENETDMAC_IR_REG(iudma->ch_idx));
+                        ENETDMAC_IR_REG, iudma->ch_idx);
         bep = iudma->bep;
         rc = iudma_read(udc, iudma);
 
@@ -2175,18 +2181,18 @@ static int bcm63xx_iudma_dbg_show(struct seq_file *s, void *p)
                 seq_printf(s, " [ep%d]:\n",
                            max_t(int, iudma_defaults[ch_idx].ep_num, 0));
                 seq_printf(s, "  cfg: %08x; irqstat: %08x; irqmask: %08x; maxburst: %08x\n",
-                           usb_dmac_readl(udc, ENETDMAC_CHANCFG_REG(ch_idx)),
-                           usb_dmac_readl(udc, ENETDMAC_IR_REG(ch_idx)),
-                           usb_dmac_readl(udc, ENETDMAC_IRMASK_REG(ch_idx)),
-                           usb_dmac_readl(udc, ENETDMAC_MAXBURST_REG(ch_idx)));
+                           usb_dmac_readl(udc, ENETDMAC_CHANCFG_REG, ch_idx),
+                           usb_dmac_readl(udc, ENETDMAC_IR_REG, ch_idx),
+                           usb_dmac_readl(udc, ENETDMAC_IRMASK_REG, ch_idx),
+                           usb_dmac_readl(udc, ENETDMAC_MAXBURST_REG, ch_idx));
 
-                sram2 = usb_dmas_readl(udc, ENETDMAS_SRAM2_REG(ch_idx));
-                sram3 = usb_dmas_readl(udc, ENETDMAS_SRAM3_REG(ch_idx));
+                sram2 = usb_dmas_readl(udc, ENETDMAS_SRAM2_REG, ch_idx);
+                sram3 = usb_dmas_readl(udc, ENETDMAS_SRAM3_REG, ch_idx);
                 seq_printf(s, "  base: %08x; index: %04x_%04x; desc: %04x_%04x %08x\n",
-                           usb_dmas_readl(udc, ENETDMAS_RSTART_REG(ch_idx)),
+                           usb_dmas_readl(udc, ENETDMAS_RSTART_REG, ch_idx),
                            sram2 >> 16, sram2 & 0xffff,
                            sram3 >> 16, sram3 & 0xffff,
-                           usb_dmas_readl(udc, ENETDMAS_SRAM4_REG(ch_idx)));
+                           usb_dmas_readl(udc, ENETDMAS_SRAM4_REG, ch_idx));
                 seq_printf(s, "  desc: %d/%d used", iudma->n_bds_used,
                            iudma->n_bds);
 
diff --git a/drivers/usb/gadget/f_fs.c b/drivers/usb/gadget/f_fs.c
index 306a2b52125c..2b4334394076 100644
--- a/drivers/usb/gadget/f_fs.c
+++ b/drivers/usb/gadget/f_fs.c
@@ -585,7 +585,6 @@ static ssize_t ffs_epfile_io(struct file *file,
                              char __user *buf, size_t len, int read)
 {
         struct ffs_epfile *epfile = file->private_data;
-        struct usb_gadget *gadget = epfile->ffs->gadget;
         struct ffs_ep *ep;
         char *data = NULL;
         ssize_t ret, data_len;
@@ -622,6 +621,12 @@ static ssize_t ffs_epfile_io(struct file *file,
         /* Allocate & copy */
         if (!halt) {
                 /*
+                 * if we _do_ wait above, the epfile->ffs->gadget might be NULL
+                 * before the waiting completes, so do not assign to 'gadget' earlier
+                 */
+                struct usb_gadget *gadget = epfile->ffs->gadget;
+
+                /*
                  * Controller may require buffer size to be aligned to
                  * maxpacketsize of an out endpoint.
                  */
diff --git a/drivers/usb/gadget/printer.c b/drivers/usb/gadget/printer.c
index bf7a56b6d48a..69b76efd11e9 100644
--- a/drivers/usb/gadget/printer.c
+++ b/drivers/usb/gadget/printer.c
@@ -1157,7 +1157,7 @@ static int __init printer_bind_config(struct usb_configuration *c)
 
         usb_gadget_set_selfpowered(gadget);
 
-        if (gadget->is_otg) {
+        if (gadget_is_otg(gadget)) {
                 otg_descriptor.bmAttributes |= USB_OTG_HNP;
                 printer_cfg_driver.descriptors = otg_desc;
                 printer_cfg_driver.bmAttributes |= USB_CONFIG_ATT_WAKEUP;
diff --git a/drivers/usb/gadget/s3c2410_udc.c b/drivers/usb/gadget/s3c2410_udc.c
index f04b2c3154de..dd9678f85c58 100644
--- a/drivers/usb/gadget/s3c2410_udc.c
+++ b/drivers/usb/gadget/s3c2410_udc.c
@@ -1629,7 +1629,7 @@ static void s3c2410_udc_reinit(struct s3c2410_udc *dev)
                 ep->ep.desc = NULL;
                 ep->halted = 0;
                 INIT_LIST_HEAD(&ep->queue);
-                usb_ep_set_maxpacket_limit(&ep->ep, &ep->ep.maxpacket);
+                usb_ep_set_maxpacket_limit(&ep->ep, ep->ep.maxpacket);
         }
 }
 
diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c
index 47b858fc50b2..7ae0c4d51741 100644
--- a/drivers/usb/host/ehci-hub.c
+++ b/drivers/usb/host/ehci-hub.c
@@ -238,6 +238,7 @@ static int ehci_bus_suspend (struct usb_hcd *hcd)
         int                     port;
         int                     mask;
         int                     changed;
+        bool                    fs_idle_delay;
 
         ehci_dbg(ehci, "suspend root hub\n");
 
@@ -272,6 +273,7 @@ static int ehci_bus_suspend (struct usb_hcd *hcd)
         ehci->bus_suspended = 0;
         ehci->owned_ports = 0;
         changed = 0;
+        fs_idle_delay = false;
         port = HCS_N_PORTS(ehci->hcs_params);
         while (port--) {
                 u32 __iomem     *reg = &ehci->regs->port_status [port];
@@ -300,16 +302,32 @@ static int ehci_bus_suspend (struct usb_hcd *hcd)
                 }
 
                 if (t1 != t2) {
+                        /*
+                         * On some controllers, Wake-On-Disconnect will
+                         * generate false wakeup signals until the bus
+                         * switches over to full-speed idle.  For their
+                         * sake, add a delay if we need one.
+                         */
+                        if ((t2 & PORT_WKDISC_E) &&
+                                        ehci_port_speed(ehci, t2) ==
+                                                USB_PORT_STAT_HIGH_SPEED)
+                                fs_idle_delay = true;
                         ehci_writel(ehci, t2, reg);
                         changed = 1;
                 }
         }
+        spin_unlock_irq(&ehci->lock);
+
+        if ((changed && ehci->has_tdi_phy_lpm) || fs_idle_delay) {
+                /*
+                 * Wait for HCD to enter low-power mode or for the bus
+                 * to switch to full-speed idle.
+                 */
+                usleep_range(5000, 5500);
+        }
 
         if (changed && ehci->has_tdi_phy_lpm) {
-                spin_unlock_irq(&ehci->lock);
-                msleep(5);      /* 5 ms for HCD to enter low-power mode */
                 spin_lock_irq(&ehci->lock);
-
                 port = HCS_N_PORTS(ehci->hcs_params);
                 while (port--) {
                         u32 __iomem     *hostpc_reg = &ehci->regs->hostpc[port];
@@ -322,8 +340,8 @@ static int ehci_bus_suspend (struct usb_hcd *hcd)
                                         port, (t3 & HOSTPC_PHCD) ?
                                         "succeeded" : "failed");
                 }
+                spin_unlock_irq(&ehci->lock);
         }
-        spin_unlock_irq(&ehci->lock);
 
         /* Apparently some devices need a >= 1-uframe delay here */
         if (ehci->bus_suspended)
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index fc192ad9cc6a..239ad0b1ceb6 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -477,8 +477,11 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
                                 musb->port1_status |=
                                                 (USB_PORT_STAT_C_SUSPEND << 16)
                                                 | MUSB_PORT_STAT_RESUME;
+                                musb->rh_timer = jiffies
+                                                 + msecs_to_jiffies(20);
                                 schedule_delayed_work(
-                                        &musb->finish_resume_work, 20);
+                                        &musb->finish_resume_work,
+                                        msecs_to_jiffies(20));
 
                                 musb->xceiv->state = OTG_STATE_A_HOST;
                                 musb->is_active = 1;
@@ -2157,11 +2160,19 @@ static void musb_restore_context(struct musb *musb)
         void __iomem *musb_base = musb->mregs;
         void __iomem *ep_target_regs;
         void __iomem *epio;
+        u8 power;
 
         musb_writew(musb_base, MUSB_FRAME, musb->context.frame);
         musb_writeb(musb_base, MUSB_TESTMODE, musb->context.testmode);
         musb_write_ulpi_buscontrol(musb->mregs, musb->context.busctl);
-        musb_writeb(musb_base, MUSB_POWER, musb->context.power);
+
+        /* Don't affect SUSPENDM/RESUME bits in POWER reg */
+        power = musb_readb(musb_base, MUSB_POWER);
+        power &= MUSB_POWER_SUSPENDM | MUSB_POWER_RESUME;
+        musb->context.power &= ~(MUSB_POWER_SUSPENDM | MUSB_POWER_RESUME);
+        power |= musb->context.power;
+        musb_writeb(musb_base, MUSB_POWER, power);
+
         musb_writew(musb_base, MUSB_INTRTXE, musb->intrtxe);
         musb_writew(musb_base, MUSB_INTRRXE, musb->intrrxe);
         musb_writeb(musb_base, MUSB_INTRUSBE, musb->context.intrusbe);
diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c
index ed455724017b..abb38c3833ef 100644
--- a/drivers/usb/musb/musb_host.c
+++ b/drivers/usb/musb/musb_host.c
@@ -1183,6 +1183,9 @@ irqreturn_t musb_h_ep0_irq(struct musb *musb)
                                 csr = MUSB_CSR0_H_STATUSPKT
                                         | MUSB_CSR0_TXPKTRDY;
 
+                        /* disable ping token in status phase */
+                        csr |= MUSB_CSR0_H_DIS_PING;
+
                         /* flag status stage */
                         musb->ep0_stage = MUSB_EP0_STATUS;
 
diff --git a/drivers/usb/musb/musb_virthub.c b/drivers/usb/musb/musb_virthub.c
index eb634433ef09..e2d2d8c9891b 100644
--- a/drivers/usb/musb/musb_virthub.c
+++ b/drivers/usb/musb/musb_virthub.c
@@ -135,7 +135,8 @@ void musb_port_suspend(struct musb *musb, bool do_suspend)
 
                 /* later, GetPortStatus will stop RESUME signaling */
                 musb->port1_status |= MUSB_PORT_STAT_RESUME;
-                schedule_delayed_work(&musb->finish_resume_work, 20);
+                schedule_delayed_work(&musb->finish_resume_work,
+                                      msecs_to_jiffies(20));
         }
 }
 
@@ -158,7 +159,6 @@ void musb_port_reset(struct musb *musb, bool do_reset)
          */
         power = musb_readb(mbase, MUSB_POWER);
         if (do_reset) {
-
                 /*
                  * If RESUME is set, we must make sure it stays minimum 20 ms.
                  * Then we must clear RESUME and wait a bit to let musb start
@@ -167,11 +167,22 @@ void musb_port_reset(struct musb *musb, bool do_reset)
                  * detected".
                  */
                 if (power &  MUSB_POWER_RESUME) {
-                        while (time_before(jiffies, musb->rh_timer))
-                                msleep(1);
+                        long remain = (unsigned long) musb->rh_timer - jiffies;
+
+                        if (musb->rh_timer > 0 && remain > 0) {
+                                /* take into account the minimum delay after resume */
+                                schedule_delayed_work(
+                                        &musb->deassert_reset_work, remain);
+                                return;
+                        }
+
                         musb_writeb(mbase, MUSB_POWER,
-                                power & ~MUSB_POWER_RESUME);
-                        msleep(1);
+                                    power & ~MUSB_POWER_RESUME);
+
+                        /* Give the core 1 ms to clear MUSB_POWER_RESUME */
+                        schedule_delayed_work(&musb->deassert_reset_work,
+                                              msecs_to_jiffies(1));
+                        return;
                 }
 
                 power &= 0xf0;
@@ -180,7 +191,8 @@ void musb_port_reset(struct musb *musb, bool do_reset)
 
                 musb->port1_status |= USB_PORT_STAT_RESET;
                 musb->port1_status &= ~USB_PORT_STAT_ENABLE;
-                schedule_delayed_work(&musb->deassert_reset_work, 50);
+                schedule_delayed_work(&musb->deassert_reset_work,
+                                      msecs_to_jiffies(50));
         } else {
                 dev_dbg(musb->controller, "root port reset stopped\n");
                 musb_writeb(mbase, MUSB_POWER,
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index 2a408cdaf7b2..8aa59a2c5eb2 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -659,7 +659,6 @@ static int omap2430_runtime_suspend(struct device *dev)
                                 OTG_INTERFSEL);
 
                 omap2430_low_level_exit(musb);
-                phy_power_off(musb->phy);
         }
 
         return 0;
@@ -674,7 +673,6 @@ static int omap2430_runtime_resume(struct device *dev)
                 omap2430_low_level_init(musb);
                 musb_writel(musb->mregs, OTG_INTERFSEL,
                                 musb->context.otg_interfsel);
-                phy_power_on(musb->phy);
         }
 
         return 0;
diff --git a/drivers/usb/phy/phy-msm-usb.c b/drivers/usb/phy/phy-msm-usb.c
index 8546c8dccd51..d204f745ed05 100644
--- a/drivers/usb/phy/phy-msm-usb.c
+++ b/drivers/usb/phy/phy-msm-usb.c
@@ -159,32 +159,6 @@ put_3p3:
         return rc;
 }
 
-#ifdef CONFIG_PM_SLEEP
-#define USB_PHY_SUSP_DIG_VOL  500000
-static int msm_hsusb_config_vddcx(int high)
-{
-        int max_vol = USB_PHY_VDD_DIG_VOL_MAX;
-        int min_vol;
-        int ret;
-
-        if (high)
-                min_vol = USB_PHY_VDD_DIG_VOL_MIN;
-        else
-                min_vol = USB_PHY_SUSP_DIG_VOL;
-
-        ret = regulator_set_voltage(hsusb_vddcx, min_vol, max_vol);
-        if (ret) {
-                pr_err("%s: unable to set the voltage for regulator "
-                        "HSUSB_VDDCX\n", __func__);
-                return ret;
-        }
-
-        pr_debug("%s: min_vol:%d max_vol:%d\n", __func__, min_vol, max_vol);
-
-        return ret;
-}
-#endif
-
 static int msm_hsusb_ldo_set_mode(int on)
 {
         int ret = 0;
@@ -440,7 +414,32 @@ static int msm_otg_reset(struct usb_phy *phy)
 #define PHY_SUSPEND_TIMEOUT_USEC        (500 * 1000)
 #define PHY_RESUME_TIMEOUT_USEC (100 * 1000)
 
-#ifdef CONFIG_PM_SLEEP
+#ifdef CONFIG_PM
+
+#define USB_PHY_SUSP_DIG_VOL  500000
+static int msm_hsusb_config_vddcx(int high)
+{
+        int max_vol = USB_PHY_VDD_DIG_VOL_MAX;
+        int min_vol;
+        int ret;
+
+        if (high)
+                min_vol = USB_PHY_VDD_DIG_VOL_MIN;
+        else
+                min_vol = USB_PHY_SUSP_DIG_VOL;
+
+        ret = regulator_set_voltage(hsusb_vddcx, min_vol, max_vol);
+        if (ret) {
+                pr_err("%s: unable to set the voltage for regulator "
+                        "HSUSB_VDDCX\n", __func__);
+                return ret;
+        }
+
+        pr_debug("%s: min_vol:%d max_vol:%d\n", __func__, min_vol, max_vol);
+
+        return ret;
+}
+
 static int msm_otg_suspend(struct msm_otg *motg)
 {
         struct usb_phy *phy = &motg->phy;
@@ -1733,22 +1732,18 @@ static int msm_otg_pm_resume(struct device *dev)
 }
 #endif
 
-#ifdef CONFIG_PM
 static const struct dev_pm_ops msm_otg_dev_pm_ops = {
         SET_SYSTEM_SLEEP_PM_OPS(msm_otg_pm_suspend, msm_otg_pm_resume)
         SET_RUNTIME_PM_OPS(msm_otg_runtime_suspend, msm_otg_runtime_resume,
                                 msm_otg_runtime_idle)
 };
-#endif
 
 static struct platform_driver msm_otg_driver = {
         .remove = msm_otg_remove,
         .driver = {
                 .name = DRIVER_NAME,
                 .owner = THIS_MODULE,
-#ifdef CONFIG_PM
                 .pm = &msm_otg_dev_pm_ops,
-#endif
         },
 };
 
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 216d20affba8..68fc9fe65936 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -1526,7 +1526,8 @@ static const struct usb_device_id option_ids[] = {
         /* Cinterion */
         { USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_EU3_E) },
         { USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_EU3_P) },
-        { USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_PH8) },
+        { USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_PH8),
+                .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
         { USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_AHXX) },
         { USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_PLXX),
                 .driver_info = (kernel_ulong_t)&net_intf4_blacklist },