Merge commit 'origin/master' into next

Conflicts:
	include/linux/kvm.h

7 files changed, 51 insertions, 40 deletions

diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 9835e071394..f5f5601701c 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -28,6 +28,7 @@
 #include <linux/errno.h>
 #include <linux/init.h>
 #include <linux/timer.h>
+#include <linux/ktime.h>
 #include <linux/list.h>
 #include <linux/interrupt.h>
 #include <linux/usb.h>
@@ -676,6 +677,7 @@ static int ehci_run (struct usb_hcd *hcd)
 	ehci_readl(ehci, &ehci->regs->command);	/* unblock posted writes */
 	msleep(5);
 	up_write(&ehci_cf_port_reset_rwsem);
+	ehci->last_periodic_enable = ktime_get_real();
 
 	temp = HC_VERSION(ehci_readl(ehci, &ehci->caps->hc_capbase));
 	ehci_info (ehci,
diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c
index 378861b9d79..ead5f4f2aa5 100644
--- a/drivers/usb/host/ehci-pci.c
+++ b/drivers/usb/host/ehci-pci.c
@@ -111,6 +111,10 @@ static int ehci_pci_setup(struct usb_hcd *hcd)
 	switch (pdev->vendor) {
 	case PCI_VENDOR_ID_INTEL:
 		ehci->need_io_watchdog = 0;
+		if (pdev->device == 0x27cc) {
+			ehci->broken_periodic = 1;
+			ehci_info(ehci, "using broken periodic workaround\n");
+		}
 		break;
 	case PCI_VENDOR_ID_TDI:
 		if (pdev->device == PCI_DEVICE_ID_TDI_EHCI) {
diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c
index 00ad9ce392e..139a2cc3f64 100644
--- a/drivers/usb/host/ehci-q.c
+++ b/drivers/usb/host/ehci-q.c
@@ -487,8 +487,20 @@ halt:
 			 * we must clear the TT buffer (11.17.5).
 			 */
 			if (unlikely(last_status != -EINPROGRESS &&
-					last_status != -EREMOTEIO))
-				ehci_clear_tt_buffer(ehci, qh, urb, token);
+					last_status != -EREMOTEIO)) {
+				/* The TT's in some hubs malfunction when they
+				 * receive this request following a STALL (they
+				 * stop sending isochronous packets).  Since a
+				 * STALL can't leave the TT buffer in a busy
+				 * state (if you believe Figures 11-48 - 11-51
+				 * in the USB 2.0 spec), we won't clear the TT
+				 * buffer in this case.  Strictly speaking this
+				 * is a violation of the spec.
+				 */
+				if (last_status != -EPIPE)
+					ehci_clear_tt_buffer(ehci, qh, urb,
+							token);
+			}
 		}
 
 		/* if we're removing something not at the queue head,
diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c
index b25cdea93a1..a5535b5e3fe 100644
--- a/drivers/usb/host/ehci-sched.c
+++ b/drivers/usb/host/ehci-sched.c
@@ -475,6 +475,8 @@ static int enable_periodic (struct ehci_hcd *ehci)
 	/* make sure ehci_work scans these */
 	ehci->next_uframe = ehci_readl(ehci, &ehci->regs->frame_index)
 		% (ehci->periodic_size << 3);
+	if (unlikely(ehci->broken_periodic))
+		ehci->last_periodic_enable = ktime_get_real();
 	return 0;
 }
 
@@ -486,6 +488,16 @@ static int disable_periodic (struct ehci_hcd *ehci)
 	if (--ehci->periodic_sched)
 		return 0;
 
+	if (unlikely(ehci->broken_periodic)) {
+		/* delay experimentally determined */
+		ktime_t safe = ktime_add_us(ehci->last_periodic_enable, 1000);
+		ktime_t now = ktime_get_real();
+		s64 delay = ktime_us_delta(safe, now);
+
+		if (unlikely(delay > 0))
+			udelay(delay);
+	}
+
 	/* did setting PSE not take effect yet?
 	 * takes effect only at frame boundaries...
 	 */
diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h
index 064e76821ff..2d85e21ff28 100644
--- a/drivers/usb/host/ehci.h
+++ b/drivers/usb/host/ehci.h
@@ -118,6 +118,7 @@ struct ehci_hcd {			/* one per controller */
 	unsigned		stamp;
 	unsigned		random_frame;
 	unsigned long		next_statechange;
+	ktime_t			last_periodic_enable;
 	u32			command;
 
 	/* SILICON QUIRKS */
@@ -127,6 +128,7 @@ struct ehci_hcd {			/* one per controller */
 	unsigned		big_endian_desc:1;
 	unsigned		has_amcc_usb23:1;
 	unsigned		need_io_watchdog:1;
+	unsigned		broken_periodic:1;
 
 	/* required for usb32 quirk */
 	#define OHCI_CTRL_HCFS          (3 << 6)
diff --git a/drivers/usb/host/ohci-omap.c b/drivers/usb/host/ohci-omap.c
index 83cbecd2a1e..5645f70b921 100644
--- a/drivers/usb/host/ohci-omap.c
+++ b/drivers/usb/host/ohci-omap.c
@@ -24,10 +24,10 @@
 #include <asm/io.h>
 #include <asm/mach-types.h>
 
-#include <mach/mux.h>
+#include <plat/mux.h>
 #include <mach/irqs.h>
-#include <mach/fpga.h>
-#include <mach/usb.h>
+#include <plat/fpga.h>
+#include <plat/usb.h>
 
 
 /* OMAP-1510 OHCI has its own MMU for DMA */
diff --git a/drivers/usb/host/sl811_cs.c b/drivers/usb/host/sl811_cs.c
index 516848dd9b4..39d253e841f 100644
--- a/drivers/usb/host/sl811_cs.c
+++ b/drivers/usb/host/sl811_cs.c
@@ -37,28 +37,8 @@ MODULE_LICENSE("GPL");
 /* MACROS                                                             */
 /*====================================================================*/
 
-#if defined(DEBUG) || defined(PCMCIA_DEBUG)
-
-static int pc_debug = 0;
-module_param(pc_debug, int, 0644);
-
-#define DBG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG "sl811_cs: " args)
-
-#else
-#define DBG(n, args...) do{}while(0)
-#endif	/* no debugging */
-
 #define INFO(args...) printk(KERN_INFO "sl811_cs: " args)
 
-#define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0444)
-
-#define CS_CHECK(fn, ret) \
-	do { \
-		last_fn = (fn); \
-		if ((last_ret = (ret)) != 0) \
-			goto cs_failed; \
-	} while (0)
-
 /*====================================================================*/
 /* VARIABLES                                                          */
 /*====================================================================*/
@@ -76,7 +56,7 @@ static void sl811_cs_release(struct pcmcia_device * link);
 
 static void release_platform_dev(struct device * dev)
 {
-	DBG(0, "sl811_cs platform_dev release\n");
+	dev_dbg(dev, "sl811_cs platform_dev release\n");
 	dev->parent = NULL;
 }
 
@@ -140,7 +120,7 @@ static int sl811_hc_init(struct device *parent, resource_size_t base_addr,
 
 static void sl811_cs_detach(struct pcmcia_device *link)
 {
-	DBG(0, "sl811_cs_detach(0x%p)\n", link);
+	dev_dbg(&link->dev, "sl811_cs_detach\n");
 
 	sl811_cs_release(link);
 
@@ -150,7 +130,7 @@ static void sl811_cs_detach(struct pcmcia_device *link)
 
 static void sl811_cs_release(struct pcmcia_device * link)
 {
-	DBG(0, "sl811_cs_release(0x%p)\n", link);
+	dev_dbg(&link->dev, "sl811_cs_release\n");
 
 	pcmcia_disable_device(link);
 	platform_device_unregister(&platform_dev);
@@ -205,11 +185,11 @@ static int sl811_cs_config_check(struct pcmcia_device *p_dev,
 
 static int sl811_cs_config(struct pcmcia_device *link)
 {
-	struct device		*parent = &handle_to_dev(link);
+	struct device		*parent = &link->dev;
 	local_info_t		*dev = link->priv;
-	int			last_fn, last_ret;
+	int			ret;
 
-	DBG(0, "sl811_cs_config(0x%p)\n", link);
+	dev_dbg(&link->dev, "sl811_cs_config\n");
 
 	if (pcmcia_loop_config(link, sl811_cs_config_check, NULL))
 		goto failed;
@@ -217,14 +197,16 @@ static int sl811_cs_config(struct pcmcia_device *link)
 	/* require an IRQ and two registers */
 	if (!link->io.NumPorts1 || link->io.NumPorts1 < 2)
 		goto failed;
-	if (link->conf.Attributes & CONF_ENABLE_IRQ)
-		CS_CHECK(RequestIRQ,
-			pcmcia_request_irq(link, &link->irq));
-	else
+	if (link->conf.Attributes & CONF_ENABLE_IRQ) {
+		ret = pcmcia_request_irq(link, &link->irq);
+		if (ret)
+			goto failed;
+	} else
 		goto failed;
 
-	CS_CHECK(RequestConfiguration,
-		pcmcia_request_configuration(link, &link->conf));
+	ret = pcmcia_request_configuration(link, &link->conf);
+	if (ret)
+		goto failed;
 
 	sprintf(dev->node.dev_name, driver_name);
 	dev->node.major = dev->node.minor = 0;
@@ -241,8 +223,6 @@ static int sl811_cs_config(struct pcmcia_device *link)
 
 	if (sl811_hc_init(parent, link->io.BasePort1, link->irq.AssignedIRQ)
 			< 0) {
-cs_failed:
-		cs_error(link, last_fn, last_ret);
 failed:
 		printk(KERN_WARNING "sl811_cs_config failed\n");
 		sl811_cs_release(link);
@@ -263,7 +243,6 @@ static int sl811_cs_probe(struct pcmcia_device *link)
 
 	/* Initialize */
 	link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
-	link->irq.IRQInfo1 = IRQ_INFO2_VALID|IRQ_LEVEL_ID;
 	link->irq.Handler = NULL;
 
 	link->conf.Attributes = 0;