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-rw-r--r--drivers/usb/core/hub.c2
-rw-r--r--drivers/usb/gadget/amd5536udc.c49
-rw-r--r--drivers/usb/host/ehci-hcd.c2
-rw-r--r--drivers/usb/host/ehci-pci.c4
-rw-r--r--drivers/usb/host/ehci-q.c16
-rw-r--r--drivers/usb/host/ehci-sched.c12
-rw-r--r--drivers/usb/host/ehci.h2
-rw-r--r--drivers/usb/host/sl811_cs.c49
-rw-r--r--drivers/usb/musb/cppi_dma.c10
-rw-r--r--drivers/usb/musb/musb_core.c4
-rw-r--r--drivers/usb/musb/musb_gadget.c79
-rw-r--r--drivers/usb/musb/musb_gadget_ep0.c3
-rw-r--r--drivers/usb/musb/musb_host.c5
-rw-r--r--drivers/usb/serial/ftdi_sio.c3
-rw-r--r--drivers/usb/serial/option.c5
15 files changed, 132 insertions, 113 deletions
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 5ce839137ad6..0f857e645058 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -444,7 +444,7 @@ resubmit:
static inline int
hub_clear_tt_buffer (struct usb_device *hdev, u16 devinfo, u16 tt)
{
- return usb_control_msg(hdev, usb_rcvctrlpipe(hdev, 0),
+ return usb_control_msg(hdev, usb_sndctrlpipe(hdev, 0),
HUB_CLEAR_TT_BUFFER, USB_RT_PORT, devinfo,
tt, NULL, 0, 1000);
}
diff --git a/drivers/usb/gadget/amd5536udc.c b/drivers/usb/gadget/amd5536udc.c
index d5b65962dd36..731150d4b1d9 100644
--- a/drivers/usb/gadget/amd5536udc.c
+++ b/drivers/usb/gadget/amd5536udc.c
@@ -1213,7 +1213,12 @@ udc_queue(struct usb_ep *usbep, struct usb_request *usbreq, gfp_t gfp)
tmp &= AMD_UNMASK_BIT(ep->num);
writel(tmp, &dev->regs->ep_irqmsk);
}
- }
+ } else if (ep->in) {
+ /* enable ep irq */
+ tmp = readl(&dev->regs->ep_irqmsk);
+ tmp &= AMD_UNMASK_BIT(ep->num);
+ writel(tmp, &dev->regs->ep_irqmsk);
+ }
} else if (ep->dma) {
@@ -2005,18 +2010,17 @@ __acquires(dev->lock)
{
int tmp;
- /* empty queues and init hardware */
- udc_basic_init(dev);
- for (tmp = 0; tmp < UDC_EP_NUM; tmp++) {
- empty_req_queue(&dev->ep[tmp]);
- }
-
if (dev->gadget.speed != USB_SPEED_UNKNOWN) {
spin_unlock(&dev->lock);
driver->disconnect(&dev->gadget);
spin_lock(&dev->lock);
}
- /* init */
+
+ /* empty queues and init hardware */
+ udc_basic_init(dev);
+ for (tmp = 0; tmp < UDC_EP_NUM; tmp++)
+ empty_req_queue(&dev->ep[tmp]);
+
udc_setup_endpoints(dev);
}
@@ -2472,6 +2476,13 @@ static irqreturn_t udc_data_in_isr(struct udc *dev, int ep_ix)
}
}
+ } else if (!use_dma && ep->in) {
+ /* disable interrupt */
+ tmp = readl(
+ &dev->regs->ep_irqmsk);
+ tmp |= AMD_BIT(ep->num);
+ writel(tmp,
+ &dev->regs->ep_irqmsk);
}
}
/* clear status bits */
@@ -3279,6 +3290,17 @@ static int udc_pci_probe(
goto finished;
}
+ spin_lock_init(&dev->lock);
+ /* udc csr registers base */
+ dev->csr = dev->virt_addr + UDC_CSR_ADDR;
+ /* dev registers base */
+ dev->regs = dev->virt_addr + UDC_DEVCFG_ADDR;
+ /* ep registers base */
+ dev->ep_regs = dev->virt_addr + UDC_EPREGS_ADDR;
+ /* fifo's base */
+ dev->rxfifo = (u32 __iomem *)(dev->virt_addr + UDC_RXFIFO_ADDR);
+ dev->txfifo = (u32 __iomem *)(dev->virt_addr + UDC_TXFIFO_ADDR);
+
if (request_irq(pdev->irq, udc_irq, IRQF_SHARED, name, dev) != 0) {
dev_dbg(&dev->pdev->dev, "request_irq(%d) fail\n", pdev->irq);
kfree(dev);
@@ -3331,7 +3353,6 @@ static int udc_probe(struct udc *dev)
udc_pollstall_timer.data = 0;
/* device struct setup */
- spin_lock_init(&dev->lock);
dev->gadget.ops = &udc_ops;
dev_set_name(&dev->gadget.dev, "gadget");
@@ -3340,16 +3361,6 @@ static int udc_probe(struct udc *dev)
dev->gadget.name = name;
dev->gadget.is_dualspeed = 1;
- /* udc csr registers base */
- dev->csr = dev->virt_addr + UDC_CSR_ADDR;
- /* dev registers base */
- dev->regs = dev->virt_addr + UDC_DEVCFG_ADDR;
- /* ep registers base */
- dev->ep_regs = dev->virt_addr + UDC_EPREGS_ADDR;
- /* fifo's base */
- dev->rxfifo = (u32 __iomem *)(dev->virt_addr + UDC_RXFIFO_ADDR);
- dev->txfifo = (u32 __iomem *)(dev->virt_addr + UDC_TXFIFO_ADDR);
-
/* init registers, interrupts, ... */
startup_registers(dev);
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 9835e0713943..f5f5601701c9 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 378861b9d79a..ead5f4f2aa5a 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 00ad9ce392ed..139a2cc3f641 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 b25cdea93a1f..a5535b5e3fe2 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 064e76821ff5..2d85e21ff282 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/sl811_cs.c b/drivers/usb/host/sl811_cs.c
index 516848dd9b48..39d253e841f6 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;
diff --git a/drivers/usb/musb/cppi_dma.c b/drivers/usb/musb/cppi_dma.c
index c3577bbbae6c..ef2332a9941d 100644
--- a/drivers/usb/musb/cppi_dma.c
+++ b/drivers/usb/musb/cppi_dma.c
@@ -1442,11 +1442,6 @@ static int cppi_channel_abort(struct dma_channel *channel)
musb_writew(regs, MUSB_TXCSR, value);
musb_writew(regs, MUSB_TXCSR, value);
- /* re-enable interrupt */
- if (enabled)
- musb_writel(tibase, DAVINCI_TXCPPI_INTENAB_REG,
- (1 << cppi_ch->index));
-
/* While we scrub the TX state RAM, ensure that we clean
* up any interrupt that's currently asserted:
* 1. Write to completion Ptr value 0x1(bit 0 set)
@@ -1459,6 +1454,11 @@ static int cppi_channel_abort(struct dma_channel *channel)
cppi_reset_tx(tx_ram, 1);
musb_writel(&tx_ram->tx_complete, 0, 0);
+ /* re-enable interrupt */
+ if (enabled)
+ musb_writel(tibase, DAVINCI_TXCPPI_INTENAB_REG,
+ (1 << cppi_ch->index));
+
cppi_dump_tx(5, cppi_ch, " (done teardown)");
/* REVISIT tx side _should_ clean up the same way
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 3a61ddb62bd2..547e0e390726 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -1450,7 +1450,7 @@ static int __init musb_core_init(u16 musb_type, struct musb *musb)
#endif
if (hw_ep->max_packet_sz_tx) {
- printk(KERN_DEBUG
+ DBG(1,
"%s: hw_ep %d%s, %smax %d\n",
musb_driver_name, i,
hw_ep->is_shared_fifo ? "shared" : "tx",
@@ -1459,7 +1459,7 @@ static int __init musb_core_init(u16 musb_type, struct musb *musb)
hw_ep->max_packet_sz_tx);
}
if (hw_ep->max_packet_sz_rx && !hw_ep->is_shared_fifo) {
- printk(KERN_DEBUG
+ DBG(1,
"%s: hw_ep %d%s, %smax %d\n",
musb_driver_name, i,
"rx",
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index 8b3c4e2ed7b8..74073f9a43f0 100644
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -4,6 +4,7 @@
* Copyright 2005 Mentor Graphics Corporation
* Copyright (C) 2005-2006 by Texas Instruments
* Copyright (C) 2006-2007 Nokia Corporation
+ * Copyright (C) 2009 MontaVista Software, Inc. <source@mvista.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
@@ -436,14 +437,6 @@ void musb_g_tx(struct musb *musb, u8 epnum)
csr |= MUSB_TXCSR_P_WZC_BITS;
csr &= ~MUSB_TXCSR_P_SENTSTALL;
musb_writew(epio, MUSB_TXCSR, csr);
- if (dma_channel_status(dma) == MUSB_DMA_STATUS_BUSY) {
- dma->status = MUSB_DMA_STATUS_CORE_ABORT;
- musb->dma_controller->channel_abort(dma);
- }
-
- if (request)
- musb_g_giveback(musb_ep, request, -EPIPE);
-
break;
}
@@ -582,15 +575,25 @@ void musb_g_tx(struct musb *musb, u8 epnum)
*/
static void rxstate(struct musb *musb, struct musb_request *req)
{
- u16 csr = 0;
const u8 epnum = req->epnum;
struct usb_request *request = &req->request;
struct musb_ep *musb_ep = &musb->endpoints[epnum].ep_out;
void __iomem *epio = musb->endpoints[epnum].regs;
unsigned fifo_count = 0;
u16 len = musb_ep->packet_sz;
+ u16 csr = musb_readw(epio, MUSB_RXCSR);
- csr = musb_readw(epio, MUSB_RXCSR);
+ /* We shouldn't get here while DMA is active, but we do... */
+ if (dma_channel_status(musb_ep->dma) == MUSB_DMA_STATUS_BUSY) {
+ DBG(4, "DMA pending...\n");
+ return;
+ }
+
+ if (csr & MUSB_RXCSR_P_SENDSTALL) {
+ DBG(5, "%s stalling, RXCSR %04x\n",
+ musb_ep->end_point.name, csr);
+ return;
+ }
if (is_cppi_enabled() && musb_ep->dma) {
struct dma_controller *c = musb->dma_controller;
@@ -761,19 +764,10 @@ void musb_g_rx(struct musb *musb, u8 epnum)
csr, dma ? " (dma)" : "", request);
if (csr & MUSB_RXCSR_P_SENTSTALL) {
- if (dma_channel_status(dma) == MUSB_DMA_STATUS_BUSY) {
- dma->status = MUSB_DMA_STATUS_CORE_ABORT;
- (void) musb->dma_controller->channel_abort(dma);
- request->actual += musb_ep->dma->actual_len;
- }
-
csr |= MUSB_RXCSR_P_WZC_BITS;
csr &= ~MUSB_RXCSR_P_SENTSTALL;
musb_writew(epio, MUSB_RXCSR, csr);
-
- if (request)
- musb_g_giveback(musb_ep, request, -EPIPE);
- goto done;
+ return;
}
if (csr & MUSB_RXCSR_P_OVERRUN) {
@@ -795,7 +789,7 @@ void musb_g_rx(struct musb *musb, u8 epnum)
DBG((csr & MUSB_RXCSR_DMAENAB) ? 4 : 1,
"%s busy, csr %04x\n",
musb_ep->end_point.name, csr);
- goto done;
+ return;
}
if (dma && (csr & MUSB_RXCSR_DMAENAB)) {
@@ -826,22 +820,15 @@ void musb_g_rx(struct musb *musb, u8 epnum)
if ((request->actual < request->length)
&& (musb_ep->dma->actual_len
== musb_ep->packet_sz))
- goto done;
+ return;
#endif
musb_g_giveback(musb_ep, request, 0);
request = next_request(musb_ep);
if (!request)
- goto done;
-
- /* don't start more i/o till the stall clears */
- musb_ep_select(mbase, epnum);
- csr = musb_readw(epio, MUSB_RXCSR);
- if (csr & MUSB_RXCSR_P_SENDSTALL)
- goto done;
+ return;
}
-
/* analyze request if the ep is hot */
if (request)
rxstate(musb, to_musb_request(request));
@@ -849,8 +836,6 @@ void musb_g_rx(struct musb *musb, u8 epnum)
DBG(3, "packet waiting for %s%s request\n",
musb_ep->desc ? "" : "inactive ",
musb_ep->end_point.name);
-
-done:
return;
}
@@ -1244,7 +1229,7 @@ int musb_gadget_set_halt(struct usb_ep *ep, int value)
void __iomem *mbase;
unsigned long flags;
u16 csr;
- struct musb_request *request = NULL;
+ struct musb_request *request;
int status = 0;
if (!ep)
@@ -1260,24 +1245,29 @@ int musb_gadget_set_halt(struct usb_ep *ep, int value)
musb_ep_select(mbase, epnum);
- /* cannot portably stall with non-empty FIFO */
request = to_musb_request(next_request(musb_ep));
- if (value && musb_ep->is_in) {
- csr = musb_readw(epio, MUSB_TXCSR);
- if (csr & MUSB_TXCSR_FIFONOTEMPTY) {
- DBG(3, "%s fifo busy, cannot halt\n", ep->name);
- spin_unlock_irqrestore(&musb->lock, flags);
- return -EAGAIN;
+ if (value) {
+ if (request) {
+ DBG(3, "request in progress, cannot halt %s\n",
+ ep->name);
+ status = -EAGAIN;
+ goto done;
+ }
+ /* Cannot portably stall with non-empty FIFO */
+ if (musb_ep->is_in) {
+ csr = musb_readw(epio, MUSB_TXCSR);
+ if (csr & MUSB_TXCSR_FIFONOTEMPTY) {
+ DBG(3, "FIFO busy, cannot halt %s\n", ep->name);
+ status = -EAGAIN;
+ goto done;
+ }
}
-
}
/* set/clear the stall and toggle bits */
DBG(2, "%s: %s stall\n", ep->name, value ? "set" : "clear");
if (musb_ep->is_in) {
csr = musb_readw(epio, MUSB_TXCSR);
- if (csr & MUSB_TXCSR_FIFONOTEMPTY)
- csr |= MUSB_TXCSR_FLUSHFIFO;
csr |= MUSB_TXCSR_P_WZC_BITS
| MUSB_TXCSR_CLRDATATOG;
if (value)
@@ -1300,14 +1290,13 @@ int musb_gadget_set_halt(struct usb_ep *ep, int value)
musb_writew(epio, MUSB_RXCSR, csr);
}
-done:
-
/* maybe start the first request in the queue */
if (!musb_ep->busy && !value && request) {
DBG(3, "restarting the request\n");
musb_ep_restart(musb, request);
}
+done:
spin_unlock_irqrestore(&musb->lock, flags);
return status;
}
diff --git a/drivers/usb/musb/musb_gadget_ep0.c b/drivers/usb/musb/musb_gadget_ep0.c
index 7a6778675ad3..522efb31b56b 100644
--- a/drivers/usb/musb/musb_gadget_ep0.c
+++ b/drivers/usb/musb/musb_gadget_ep0.c
@@ -511,7 +511,8 @@ static void ep0_txstate(struct musb *musb)
/* update the flags */
if (fifo_count < MUSB_MAX_END0_PACKET
- || request->actual == request->length) {
+ || (request->actual == request->length
+ && !request->zero)) {
musb->ep0_state = MUSB_EP0_STAGE_STATUSOUT;
csr |= MUSB_CSR0_P_DATAEND;
} else
diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c
index cf94511485f2..e3ab40a966eb 100644
--- a/drivers/usb/musb/musb_host.c
+++ b/drivers/usb/musb/musb_host.c
@@ -1301,8 +1301,11 @@ void musb_host_tx(struct musb *musb, u8 epnum)
return;
} else if (usb_pipeisoc(pipe) && dma) {
if (musb_tx_dma_program(musb->dma_controller, hw_ep, qh, urb,
- offset, length))
+ offset, length)) {
+ if (is_cppi_enabled() || tusb_dma_omap())
+ musb_h_tx_dma_start(hw_ep);
return;
+ }
} else if (tx_csr & MUSB_TXCSR_DMAENAB) {
DBG(1, "not complete, but DMA enabled?\n");
return;
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 9c60d6d4908a..ebcc6d0e2e91 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -1937,7 +1937,7 @@ static void ftdi_write_bulk_callback(struct urb *urb)
return;
}
/* account for transferred data */
- countback = urb->actual_length;
+ countback = urb->transfer_buffer_length;
data_offset = priv->write_offset;
if (data_offset > 0) {
/* Subtract the control bytes */
@@ -1950,7 +1950,6 @@ static void ftdi_write_bulk_callback(struct urb *urb)
if (status) {
dbg("nonzero write bulk status received: %d", status);
- return;
}
usb_serial_port_softint(port);
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 319aaf9725b3..0577e4b61114 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -336,6 +336,10 @@ static int option_resume(struct usb_serial *serial);
#define AIRPLUS_VENDOR_ID 0x1011
#define AIRPLUS_PRODUCT_MCD650 0x3198
+/* 4G Systems products */
+#define FOUR_G_SYSTEMS_VENDOR_ID 0x1c9e
+#define FOUR_G_SYSTEMS_PRODUCT_W14 0x9603
+
static struct usb_device_id option_ids[] = {
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) },
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA) },
@@ -599,6 +603,7 @@ static struct usb_device_id option_ids[] = {
{ USB_DEVICE(ALCATEL_VENDOR_ID, ALCATEL_PRODUCT_X060S) },
{ USB_DEVICE(AIRPLUS_VENDOR_ID, AIRPLUS_PRODUCT_MCD650) },
{ USB_DEVICE(TLAYTECH_VENDOR_ID, TLAYTECH_PRODUCT_TEU800) },
+ { USB_DEVICE(FOUR_G_SYSTEMS_VENDOR_ID, FOUR_G_SYSTEMS_PRODUCT_W14) },
{ } /* Terminating entry */
};
MODULE_DEVICE_TABLE(usb, option_ids);
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