Merge commit 'v3.6-rc5' into next

* commit 'v3.6-rc5': (1098 commits)
  Linux 3.6-rc5
  HID: tpkbd: work even if the new Lenovo Keyboard driver is not configured
  Remove user-triggerable BUG from mpol_to_str
  xen/pciback: Fix proper FLR steps.
  uml: fix compile error in deliver_alarm()
  dj: memory scribble in logi_dj
  Fix order of arguments to compat_put_time[spec|val]
  xen: Use correct masking in xen_swiotlb_alloc_coherent.
  xen: fix logical error in tlb flushing
  xen/p2m: Fix one-off error in checking the P2M tree directory.
  powerpc: Don't use __put_user() in patch_instruction
  powerpc: Make sure IPI handlers see data written by IPI senders
  powerpc: Restore correct DSCR in context switch
  powerpc: Fix DSCR inheritance in copy_thread()
  powerpc: Keep thread.dscr and thread.dscr_inherit in sync
  powerpc: Update DSCR on all CPUs when writing sysfs dscr_default
  powerpc/powernv: Always go into nap mode when CPU is offline
  powerpc: Give hypervisor decrementer interrupts their own handler
  powerpc/vphn: Fix arch_update_cpu_topology() return value
  ARM: gemini: fix the gemini build
  ...

Conflicts:
	drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
	drivers/rapidio/devices/tsi721.c

11 files changed, 59 insertions, 192 deletions

diff --git a/drivers/usb/host/ehci-omap.c b/drivers/usb/host/ehci-omap.c
index bb55eb4a7d48..d7fe287d0678 100644
--- a/drivers/usb/host/ehci-omap.c
+++ b/drivers/usb/host/ehci-omap.c
@@ -56,15 +56,6 @@
 #define	EHCI_INSNREG05_ULPI_EXTREGADD_SHIFT		8
 #define	EHCI_INSNREG05_ULPI_WRDATA_SHIFT		0
 
-/* Errata i693 */
-static struct clk	*utmi_p1_fck;
-static struct clk	*utmi_p2_fck;
-static struct clk	*xclk60mhsp1_ck;
-static struct clk	*xclk60mhsp2_ck;
-static struct clk	*usbhost_p1_fck;
-static struct clk	*usbhost_p2_fck;
-static struct clk	*init_60m_fclk;
-
 /*-------------------------------------------------------------------------*/
 
 static const struct hc_driver ehci_omap_hc_driver;
@@ -80,40 +71,6 @@ static inline u32 ehci_read(void __iomem *base, u32 reg)
 	return __raw_readl(base + reg);
 }
 
-/* Erratum i693 workaround sequence */
-static void omap_ehci_erratum_i693(struct ehci_hcd *ehci)
-{
-	int ret = 0;
-
-	/* Switch to the internal 60 MHz clock */
-	ret = clk_set_parent(utmi_p1_fck, init_60m_fclk);
-	if (ret != 0)
-		ehci_err(ehci, "init_60m_fclk set parent"
-			"failed error:%d\n", ret);
-
-	ret = clk_set_parent(utmi_p2_fck, init_60m_fclk);
-	if (ret != 0)
-		ehci_err(ehci, "init_60m_fclk set parent"
-			"failed error:%d\n", ret);
-
-	clk_enable(usbhost_p1_fck);
-	clk_enable(usbhost_p2_fck);
-
-	/* Wait 1ms and switch back to the external clock */
-	mdelay(1);
-	ret = clk_set_parent(utmi_p1_fck, xclk60mhsp1_ck);
-	if (ret != 0)
-		ehci_err(ehci, "xclk60mhsp1_ck set parent"
-			"failed error:%d\n", ret);
-
-	ret = clk_set_parent(utmi_p2_fck, xclk60mhsp2_ck);
-	if (ret != 0)
-		ehci_err(ehci, "xclk60mhsp2_ck set parent"
-			"failed error:%d\n", ret);
-
-	clk_disable(usbhost_p1_fck);
-	clk_disable(usbhost_p2_fck);
-}
 
 static void omap_ehci_soft_phy_reset(struct usb_hcd *hcd, u8 port)
 {
@@ -195,50 +152,6 @@ static int omap_ehci_init(struct usb_hcd *hcd)
 	return rc;
 }
 
-static int omap_ehci_hub_control(
-	struct usb_hcd	*hcd,
-	u16		typeReq,
-	u16		wValue,
-	u16		wIndex,
-	char		*buf,
-	u16		wLength
-)
-{
-	struct ehci_hcd	*ehci = hcd_to_ehci(hcd);
-	u32 __iomem *status_reg = &ehci->regs->port_status[
-				(wIndex & 0xff) - 1];
-	u32		temp;
-	unsigned long	flags;
-	int		retval = 0;
-
-	spin_lock_irqsave(&ehci->lock, flags);
-
-	if (typeReq == SetPortFeature && wValue == USB_PORT_FEAT_SUSPEND) {
-		temp = ehci_readl(ehci, status_reg);
-		if ((temp & PORT_PE) == 0 || (temp & PORT_RESET) != 0) {
-			retval = -EPIPE;
-			goto done;
-		}
-
-		temp &= ~PORT_WKCONN_E;
-		temp |= PORT_WKDISC_E | PORT_WKOC_E;
-		ehci_writel(ehci, temp | PORT_SUSPEND, status_reg);
-
-		omap_ehci_erratum_i693(ehci);
-
-		set_bit((wIndex & 0xff) - 1, &ehci->suspended_ports);
-		goto done;
-	}
-
-	spin_unlock_irqrestore(&ehci->lock, flags);
-
-	/* Handle the hub control events here */
-	return ehci_hub_control(hcd, typeReq, wValue, wIndex, buf, wLength);
-done:
-	spin_unlock_irqrestore(&ehci->lock, flags);
-	return retval;
-}
-
 static void disable_put_regulator(
 		struct ehci_hcd_omap_platform_data *pdata)
 {
@@ -351,79 +264,9 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev)
 		goto err_pm_runtime;
 	}
 
-	/* get clocks */
-	utmi_p1_fck = clk_get(dev, "utmi_p1_gfclk");
-	if (IS_ERR(utmi_p1_fck)) {
-		ret = PTR_ERR(utmi_p1_fck);
-		dev_err(dev, "utmi_p1_gfclk failed error:%d\n",	ret);
-		goto err_add_hcd;
-	}
-
-	xclk60mhsp1_ck = clk_get(dev, "xclk60mhsp1_ck");
-	if (IS_ERR(xclk60mhsp1_ck)) {
-		ret = PTR_ERR(xclk60mhsp1_ck);
-		dev_err(dev, "xclk60mhsp1_ck failed error:%d\n", ret);
-		goto err_utmi_p1_fck;
-	}
-
-	utmi_p2_fck = clk_get(dev, "utmi_p2_gfclk");
-	if (IS_ERR(utmi_p2_fck)) {
-		ret = PTR_ERR(utmi_p2_fck);
-		dev_err(dev, "utmi_p2_gfclk failed error:%d\n", ret);
-		goto err_xclk60mhsp1_ck;
-	}
-
-	xclk60mhsp2_ck = clk_get(dev, "xclk60mhsp2_ck");
-	if (IS_ERR(xclk60mhsp2_ck)) {
-		ret = PTR_ERR(xclk60mhsp2_ck);
-		dev_err(dev, "xclk60mhsp2_ck failed error:%d\n", ret);
-		goto err_utmi_p2_fck;
-	}
-
-	usbhost_p1_fck = clk_get(dev, "usb_host_hs_utmi_p1_clk");
-	if (IS_ERR(usbhost_p1_fck)) {
-		ret = PTR_ERR(usbhost_p1_fck);
-		dev_err(dev, "usbhost_p1_fck failed error:%d\n", ret);
-		goto err_xclk60mhsp2_ck;
-	}
-
-	usbhost_p2_fck = clk_get(dev, "usb_host_hs_utmi_p2_clk");
-	if (IS_ERR(usbhost_p2_fck)) {
-		ret = PTR_ERR(usbhost_p2_fck);
-		dev_err(dev, "usbhost_p2_fck failed error:%d\n", ret);
-		goto err_usbhost_p1_fck;
-	}
-
-	init_60m_fclk = clk_get(dev, "init_60m_fclk");
-	if (IS_ERR(init_60m_fclk)) {
-		ret = PTR_ERR(init_60m_fclk);
-		dev_err(dev, "init_60m_fclk failed error:%d\n", ret);
-		goto err_usbhost_p2_fck;
-	}
 
 	return 0;
 
-err_usbhost_p2_fck:
-	clk_put(usbhost_p2_fck);
-
-err_usbhost_p1_fck:
-	clk_put(usbhost_p1_fck);
-
-err_xclk60mhsp2_ck:
-	clk_put(xclk60mhsp2_ck);
-
-err_utmi_p2_fck:
-	clk_put(utmi_p2_fck);
-
-err_xclk60mhsp1_ck:
-	clk_put(xclk60mhsp1_ck);
-
-err_utmi_p1_fck:
-	clk_put(utmi_p1_fck);
-
-err_add_hcd:
-	usb_remove_hcd(hcd);
-
 err_pm_runtime:
 	disable_put_regulator(pdata);
 	pm_runtime_put_sync(dev);
@@ -454,14 +297,6 @@ static int ehci_hcd_omap_remove(struct platform_device *pdev)
 	iounmap(hcd->regs);
 	usb_put_hcd(hcd);
 
-	clk_put(utmi_p1_fck);
-	clk_put(utmi_p2_fck);
-	clk_put(xclk60mhsp1_ck);
-	clk_put(xclk60mhsp2_ck);
-	clk_put(usbhost_p1_fck);
-	clk_put(usbhost_p2_fck);
-	clk_put(init_60m_fclk);
-
 	pm_runtime_put_sync(dev);
 	pm_runtime_disable(dev);
 
@@ -532,7 +367,7 @@ static const struct hc_driver ehci_omap_hc_driver = {
 	 * root hub support
 	 */
 	.hub_status_data	= ehci_hub_status_data,
-	.hub_control		= omap_ehci_hub_control,
+	.hub_control		= ehci_hub_control,
 	.bus_suspend		= ehci_bus_suspend,
 	.bus_resume		= ehci_bus_resume,
 
diff --git a/drivers/usb/host/ehci-sead3.c b/drivers/usb/host/ehci-sead3.c
index 58c96bd50d22..0c9e43cfaff5 100644
--- a/drivers/usb/host/ehci-sead3.c
+++ b/drivers/usb/host/ehci-sead3.c
@@ -40,7 +40,7 @@ static int ehci_sead3_setup(struct usb_hcd *hcd)
 	ehci->need_io_watchdog = 0;
 
 	/* Set burst length to 16 words. */
-	ehci_writel(ehci, 0x1010, &ehci->regs->reserved[1]);
+	ehci_writel(ehci, 0x1010, &ehci->regs->reserved1[1]);
 
 	return ret;
 }
diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c
index 950e95efa381..26dedb30ad0b 100644
--- a/drivers/usb/host/ehci-tegra.c
+++ b/drivers/usb/host/ehci-tegra.c
@@ -799,11 +799,12 @@ static int tegra_ehci_remove(struct platform_device *pdev)
 #endif
 
 	usb_remove_hcd(hcd);
-	usb_put_hcd(hcd);
 
 	tegra_usb_phy_close(tegra->phy);
 	iounmap(hcd->regs);
 
+	usb_put_hcd(hcd);
+
 	clk_disable_unprepare(tegra->clk);
 	clk_put(tegra->clk);
 
diff --git a/drivers/usb/host/isp1362-hcd.c b/drivers/usb/host/isp1362-hcd.c
index 2ed112d3e159..256326322cfd 100644
--- a/drivers/usb/host/isp1362-hcd.c
+++ b/drivers/usb/host/isp1362-hcd.c
@@ -543,12 +543,12 @@ static void postproc_ep(struct isp1362_hcd *isp1362_hcd, struct isp1362_ep *ep)
 			    usb_pipein(urb->pipe) ? "IN" : "OUT", ep->nextpid,
 			    short_ok ? "" : "not_",
 			    PTD_GET_COUNT(ptd), ep->maxpacket, len);
+			/* save the data underrun error code for later and
+			 * proceed with the status stage
+			 */
+			urb->actual_length += PTD_GET_COUNT(ptd);
 			if (usb_pipecontrol(urb->pipe)) {
 				ep->nextpid = USB_PID_ACK;
-				/* save the data underrun error code for later and
-				 * proceed with the status stage
-				 */
-				urb->actual_length += PTD_GET_COUNT(ptd);
 				BUG_ON(urb->actual_length > urb->transfer_buffer_length);
 
 				if (urb->status == -EINPROGRESS)
diff --git a/drivers/usb/host/ohci-omap.c b/drivers/usb/host/ohci-omap.c
index e7d75d295988..f8b2d91851f7 100644
--- a/drivers/usb/host/ohci-omap.c
+++ b/drivers/usb/host/ohci-omap.c
@@ -403,8 +403,6 @@ err0:
 static inline void
 usb_hcd_omap_remove (struct usb_hcd *hcd, struct platform_device *pdev)
 {
-	struct ohci_hcd		*ohci = hcd_to_ohci (hcd);
-
 	usb_remove_hcd(hcd);
 	if (!IS_ERR_OR_NULL(hcd->phy)) {
 		(void) otg_set_host(hcd->phy->otg, 0);
diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c
index df0828cb2aa3..c5e9e4a76f14 100644
--- a/drivers/usb/host/pci-quirks.c
+++ b/drivers/usb/host/pci-quirks.c
@@ -800,6 +800,13 @@ void usb_enable_xhci_ports(struct pci_dev *xhci_pdev)
 }
 EXPORT_SYMBOL_GPL(usb_enable_xhci_ports);
 
+void usb_disable_xhci_ports(struct pci_dev *xhci_pdev)
+{
+	pci_write_config_dword(xhci_pdev, USB_INTEL_USB3_PSSEN, 0x0);
+	pci_write_config_dword(xhci_pdev, USB_INTEL_XUSB2PR, 0x0);
+}
+EXPORT_SYMBOL_GPL(usb_disable_xhci_ports);
+
 /**
  * PCI Quirks for xHCI.
  *
diff --git a/drivers/usb/host/pci-quirks.h b/drivers/usb/host/pci-quirks.h
index b1002a8ef96f..ef004a5de20f 100644
--- a/drivers/usb/host/pci-quirks.h
+++ b/drivers/usb/host/pci-quirks.h
@@ -10,6 +10,7 @@ void usb_amd_quirk_pll_disable(void);
 void usb_amd_quirk_pll_enable(void);
 bool usb_is_intel_switchable_xhci(struct pci_dev *pdev);
 void usb_enable_xhci_ports(struct pci_dev *xhci_pdev);
+void usb_disable_xhci_ports(struct pci_dev *xhci_pdev);
 #else
 static inline void usb_amd_quirk_pll_disable(void) {}
 static inline void usb_amd_quirk_pll_enable(void) {}
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 18b231b0c5d3..9bfd4ca1153c 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -94,11 +94,21 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
 		xhci->quirks |= XHCI_EP_LIMIT_QUIRK;
 		xhci->limit_active_eps = 64;
 		xhci->quirks |= XHCI_SW_BW_CHECKING;
+		/*
+		 * PPT desktop boards DH77EB and DH77DF will power back on after
+		 * a few seconds of being shutdown.  The fix for this is to
+		 * switch the ports from xHCI to EHCI on shutdown.  We can't use
+		 * DMI information to find those particular boards (since each
+		 * vendor will change the board name), so we have to key off all
+		 * PPT chipsets.
+		 */
+		xhci->quirks |= XHCI_SPURIOUS_REBOOT;
 	}
 	if (pdev->vendor == PCI_VENDOR_ID_ETRON &&
 			pdev->device == PCI_DEVICE_ID_ASROCK_P67) {
 		xhci->quirks |= XHCI_RESET_ON_RESUME;
 		xhci_dbg(xhci, "QUIRK: Resetting on resume\n");
+		xhci->quirks |= XHCI_TRUST_TX_LENGTH;
 	}
 	if (pdev->vendor == PCI_VENDOR_ID_VIA)
 		xhci->quirks |= XHCI_RESET_ON_RESUME;
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 8275645889da..643c2f3f3e73 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -145,29 +145,37 @@ static void next_trb(struct xhci_hcd *xhci,
  */
 static void inc_deq(struct xhci_hcd *xhci, struct xhci_ring *ring)
 {
-	union xhci_trb *next;
 	unsigned long long addr;
 
 	ring->deq_updates++;
 
-	/* If this is not event ring, there is one more usable TRB */
+	/*
+	 * If this is not event ring, and the dequeue pointer
+	 * is not on a link TRB, there is one more usable TRB
+	 */
 	if (ring->type != TYPE_EVENT &&
 			!last_trb(xhci, ring, ring->deq_seg, ring->dequeue))
 		ring->num_trbs_free++;
-	next = ++(ring->dequeue);
 
-	/* Update the dequeue pointer further if that was a link TRB or we're at
-	 * the end of an event ring segment (which doesn't have link TRBS)
-	 */
-	while (last_trb(xhci, ring, ring->deq_seg, next)) {
-		if (ring->type == TYPE_EVENT &&	last_trb_on_last_seg(xhci,
-				ring, ring->deq_seg, next)) {
-			ring->cycle_state = (ring->cycle_state ? 0 : 1);
+	do {
+		/*
+		 * Update the dequeue pointer further if that was a link TRB or
+		 * we're at the end of an event ring segment (which doesn't have
+		 * link TRBS)
+		 */
+		if (last_trb(xhci, ring, ring->deq_seg, ring->dequeue)) {
+			if (ring->type == TYPE_EVENT &&
+					last_trb_on_last_seg(xhci, ring,
+						ring->deq_seg, ring->dequeue)) {
+				ring->cycle_state = (ring->cycle_state ? 0 : 1);
+			}
+			ring->deq_seg = ring->deq_seg->next;
+			ring->dequeue = ring->deq_seg->trbs;
+		} else {
+			ring->dequeue++;
 		}
-		ring->deq_seg = ring->deq_seg->next;
-		ring->dequeue = ring->deq_seg->trbs;
-		next = ring->dequeue;
-	}
+	} while (last_trb(xhci, ring, ring->deq_seg, ring->dequeue));
+
 	addr = (unsigned long long) xhci_trb_virt_to_dma(ring->deq_seg, ring->dequeue);
 }
 
@@ -2073,8 +2081,8 @@ static int handle_tx_event(struct xhci_hcd *xhci,
 		if (xhci->quirks & XHCI_TRUST_TX_LENGTH)
 			trb_comp_code = COMP_SHORT_TX;
 		else
-			xhci_warn(xhci, "WARN Successful completion on short TX: "
-					"needs XHCI_TRUST_TX_LENGTH quirk?\n");
+			xhci_warn_ratelimited(xhci,
+					"WARN Successful completion on short TX: needs XHCI_TRUST_TX_LENGTH quirk?\n");
 	case COMP_SHORT_TX:
 		break;
 	case COMP_STOP:
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 7648b2d4b268..c59d5b5b6c7d 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -166,7 +166,7 @@ int xhci_reset(struct xhci_hcd *xhci)
 	xhci_writel(xhci, command, &xhci->op_regs->command);
 
 	ret = handshake(xhci, &xhci->op_regs->command,
-			CMD_RESET, 0, 250 * 1000);
+			CMD_RESET, 0, 10 * 1000 * 1000);
 	if (ret)
 		return ret;
 
@@ -175,7 +175,8 @@ int xhci_reset(struct xhci_hcd *xhci)
 	 * xHCI cannot write to any doorbells or operational registers other
 	 * than status until the "Controller Not Ready" flag is cleared.
 	 */
-	ret = handshake(xhci, &xhci->op_regs->status, STS_CNR, 0, 250 * 1000);
+	ret = handshake(xhci, &xhci->op_regs->status,
+			STS_CNR, 0, 10 * 1000 * 1000);
 
 	for (i = 0; i < 2; ++i) {
 		xhci->bus_state[i].port_c_suspend = 0;
@@ -658,6 +659,9 @@ void xhci_shutdown(struct usb_hcd *hcd)
 {
 	struct xhci_hcd *xhci = hcd_to_xhci(hcd);
 
+	if (xhci->quirks && XHCI_SPURIOUS_REBOOT)
+		usb_disable_xhci_ports(to_pci_dev(hcd->self.controller));
+
 	spin_lock_irq(&xhci->lock);
 	xhci_halt(xhci);
 	spin_unlock_irq(&xhci->lock);
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 55c0785810c9..c713256297ac 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1494,6 +1494,7 @@ struct xhci_hcd {
 #define XHCI_TRUST_TX_LENGTH	(1 << 10)
 #define XHCI_LPM_SUPPORT	(1 << 11)
 #define XHCI_INTEL_HOST		(1 << 12)
+#define XHCI_SPURIOUS_REBOOT	(1 << 13)
 	unsigned int		num_active_eps;
 	unsigned int		limit_active_eps;
 	/* There are two roothubs to keep track of bus suspend info for */
@@ -1537,6 +1538,8 @@ static inline struct usb_hcd *xhci_to_hcd(struct xhci_hcd *xhci)
 	dev_err(xhci_to_hcd(xhci)->self.controller , fmt , ## args)
 #define xhci_warn(xhci, fmt, args...) \
 	dev_warn(xhci_to_hcd(xhci)->self.controller , fmt , ## args)
+#define xhci_warn_ratelimited(xhci, fmt, args...) \
+	dev_warn_ratelimited(xhci_to_hcd(xhci)->self.controller , fmt , ## args)
 
 /* TODO: copied from ehci.h - can be refactored? */
 /* xHCI spec says all registers are little endian */