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authorLinus Torvalds <torvalds@linux-foundation.org>2011-03-16 15:04:26 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-03-16 15:04:26 -0700
commit971f115a50afbe409825c9f3399d5a3b9aca4381 (patch)
treecb42dc07a032e325f22b64d961587c081225c6d6 /drivers/usb/musb
parent2e270d84223262a38d4755c61d55f5c73ea89e56 (diff)
parent500132a0f26ad7d9916102193cbc6c1b1becb373 (diff)
downloadop-kernel-dev-971f115a50afbe409825c9f3399d5a3b9aca4381.zip
op-kernel-dev-971f115a50afbe409825c9f3399d5a3b9aca4381.tar.gz
Merge branch 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
* 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (172 commits) USB: Add support for SuperSpeed isoc endpoints xhci: Clean up cycle bit math used during stalls. xhci: Fix cycle bit calculation during stall handling. xhci: Update internal dequeue pointers after stalls. USB: Disable auto-suspend for USB 3.0 hubs. USB: Remove bogus USB_PORT_STAT_SUPER_SPEED symbol. xhci: Return canceled URBs immediately when host is halted. xhci: Fixes for suspend/resume of shared HCDs. xhci: Fix re-init on power loss after resume. xhci: Make roothub functions deal with device removal. xhci: Limit roothub ports to 15 USB3 & 31 USB2 ports. xhci: Return a USB 3.0 hub descriptor for USB3 roothub. xhci: Register second xHCI roothub. xhci: Change xhci_find_slot_id_by_port() API. xhci: Refactor bus suspend state into a struct. xhci: Index with a port array instead of PORTSC addresses. USB: Set usb_hcd->state and flags for shared roothubs. usb: Make core allocate resources per PCI-device. usb: Store bus type in usb_hcd, not in driver flags. usb: Change usb_hcd->bandwidth_mutex to a pointer. ...
Diffstat (limited to 'drivers/usb/musb')
-rw-r--r--drivers/usb/musb/musb_core.c65
-rw-r--r--drivers/usb/musb/musb_core.h8
-rw-r--r--drivers/usb/musb/musb_gadget.c217
-rw-r--r--drivers/usb/musb/musb_gadget.h7
-rw-r--r--drivers/usb/musb/musb_gadget_ep0.c24
-rw-r--r--drivers/usb/musb/musb_host.c4
-rw-r--r--drivers/usb/musb/musb_virthub.c4
-rw-r--r--drivers/usb/musb/omap2430.c176
-rw-r--r--drivers/usb/musb/tusb6010_omap.c4
9 files changed, 275 insertions, 234 deletions
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index c292d5c..a914010 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -1950,31 +1950,6 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
goto fail0;
}
- switch (plat->mode) {
- case MUSB_HOST:
-#ifdef CONFIG_USB_MUSB_HDRC_HCD
- break;
-#else
- goto bad_config;
-#endif
- case MUSB_PERIPHERAL:
-#ifdef CONFIG_USB_GADGET_MUSB_HDRC
- break;
-#else
- goto bad_config;
-#endif
- case MUSB_OTG:
-#ifdef CONFIG_USB_MUSB_OTG
- break;
-#else
-bad_config:
-#endif
- default:
- dev_err(dev, "incompatible Kconfig role setting\n");
- status = -EINVAL;
- goto fail0;
- }
-
/* allocate */
musb = allocate_instance(dev, plat->config, ctrl);
if (!musb) {
@@ -1982,6 +1957,10 @@ bad_config:
goto fail0;
}
+ pm_runtime_use_autosuspend(musb->controller);
+ pm_runtime_set_autosuspend_delay(musb->controller, 200);
+ pm_runtime_enable(musb->controller);
+
spin_lock_init(&musb->lock);
musb->board_mode = plat->mode;
musb->board_set_power = plat->set_power;
@@ -2117,6 +2096,8 @@ bad_config:
if (status < 0)
goto fail3;
+ pm_runtime_put(musb->controller);
+
status = musb_init_debugfs(musb);
if (status < 0)
goto fail4;
@@ -2216,9 +2197,11 @@ static int __exit musb_remove(struct platform_device *pdev)
* - Peripheral mode: peripheral is deactivated (or never-activated)
* - OTG mode: both roles are deactivated (or never-activated)
*/
+ pm_runtime_get_sync(musb->controller);
musb_exit_debugfs(musb);
musb_shutdown(pdev);
+ pm_runtime_put(musb->controller);
musb_free(musb);
iounmap(ctrl_base);
device_init_wakeup(&pdev->dev, 0);
@@ -2404,9 +2387,41 @@ static int musb_resume_noirq(struct device *dev)
return 0;
}
+static int musb_runtime_suspend(struct device *dev)
+{
+ struct musb *musb = dev_to_musb(dev);
+
+ musb_save_context(musb);
+
+ return 0;
+}
+
+static int musb_runtime_resume(struct device *dev)
+{
+ struct musb *musb = dev_to_musb(dev);
+ static int first = 1;
+
+ /*
+ * When pm_runtime_get_sync called for the first time in driver
+ * init, some of the structure is still not initialized which is
+ * used in restore function. But clock needs to be
+ * enabled before any register access, so
+ * pm_runtime_get_sync has to be called.
+ * Also context restore without save does not make
+ * any sense
+ */
+ if (!first)
+ musb_restore_context(musb);
+ first = 0;
+
+ return 0;
+}
+
static const struct dev_pm_ops musb_dev_pm_ops = {
.suspend = musb_suspend,
.resume_noirq = musb_resume_noirq,
+ .runtime_suspend = musb_runtime_suspend,
+ .runtime_resume = musb_runtime_resume,
};
#define MUSB_DEV_PM_OPS (&musb_dev_pm_ops)
diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h
index e6400be..4f0dd2e 100644
--- a/drivers/usb/musb/musb_core.h
+++ b/drivers/usb/musb/musb_core.h
@@ -328,7 +328,7 @@ struct musb_hw_ep {
#endif
};
-static inline struct usb_request *next_in_request(struct musb_hw_ep *hw_ep)
+static inline struct musb_request *next_in_request(struct musb_hw_ep *hw_ep)
{
#ifdef CONFIG_USB_GADGET_MUSB_HDRC
return next_request(&hw_ep->ep_in);
@@ -337,7 +337,7 @@ static inline struct usb_request *next_in_request(struct musb_hw_ep *hw_ep)
#endif
}
-static inline struct usb_request *next_out_request(struct musb_hw_ep *hw_ep)
+static inline struct musb_request *next_out_request(struct musb_hw_ep *hw_ep)
{
#ifdef CONFIG_USB_GADGET_MUSB_HDRC
return next_request(&hw_ep->ep_out);
@@ -358,10 +358,6 @@ struct musb_csr_regs {
struct musb_context_registers {
-#if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3) || \
- defined(CONFIG_ARCH_OMAP4)
- u32 otg_sysconfig, otg_forcestandby;
-#endif
u8 power;
u16 intrtxe, intrrxe;
u8 intrusbe;
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index 2fe3046..5c7b321 100644
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -189,7 +189,7 @@ __acquires(ep->musb->lock)
req = to_musb_request(request);
- list_del(&request->list);
+ list_del(&req->list);
if (req->request.status == -EINPROGRESS)
req->request.status = status;
musb = req->musb;
@@ -251,9 +251,8 @@ static void nuke(struct musb_ep *ep, const int status)
ep->dma = NULL;
}
- while (!list_empty(&(ep->req_list))) {
- req = container_of(ep->req_list.next, struct musb_request,
- request.list);
+ while (!list_empty(&ep->req_list)) {
+ req = list_first_entry(&ep->req_list, struct musb_request, list);
musb_g_giveback(ep, &req->request, status);
}
}
@@ -485,6 +484,7 @@ static void txstate(struct musb *musb, struct musb_request *req)
void musb_g_tx(struct musb *musb, u8 epnum)
{
u16 csr;
+ struct musb_request *req;
struct usb_request *request;
u8 __iomem *mbase = musb->mregs;
struct musb_ep *musb_ep = &musb->endpoints[epnum].ep_in;
@@ -492,7 +492,8 @@ void musb_g_tx(struct musb *musb, u8 epnum)
struct dma_channel *dma;
musb_ep_select(mbase, epnum);
- request = next_request(musb_ep);
+ req = next_request(musb_ep);
+ request = &req->request;
csr = musb_readw(epio, MUSB_TXCSR);
DBG(4, "<== %s, txcsr %04x\n", musb_ep->end_point.name, csr);
@@ -571,15 +572,15 @@ void musb_g_tx(struct musb *musb, u8 epnum)
if (request->actual == request->length) {
musb_g_giveback(musb_ep, request, 0);
- request = musb_ep->desc ? next_request(musb_ep) : NULL;
- if (!request) {
+ req = musb_ep->desc ? next_request(musb_ep) : NULL;
+ if (!req) {
DBG(4, "%s idle now\n",
musb_ep->end_point.name);
return;
}
}
- txstate(musb, to_musb_request(request));
+ txstate(musb, req);
}
}
@@ -821,6 +822,7 @@ static void rxstate(struct musb *musb, struct musb_request *req)
void musb_g_rx(struct musb *musb, u8 epnum)
{
u16 csr;
+ struct musb_request *req;
struct usb_request *request;
void __iomem *mbase = musb->mregs;
struct musb_ep *musb_ep;
@@ -835,10 +837,12 @@ void musb_g_rx(struct musb *musb, u8 epnum)
musb_ep_select(mbase, epnum);
- request = next_request(musb_ep);
- if (!request)
+ req = next_request(musb_ep);
+ if (!req)
return;
+ request = &req->request;
+
csr = musb_readw(epio, MUSB_RXCSR);
dma = is_dma_capable() ? musb_ep->dma : NULL;
@@ -914,15 +918,15 @@ void musb_g_rx(struct musb *musb, u8 epnum)
#endif
musb_g_giveback(musb_ep, request, 0);
- request = next_request(musb_ep);
- if (!request)
+ req = next_request(musb_ep);
+ if (!req)
return;
}
#if defined(CONFIG_USB_INVENTRA_DMA) || defined(CONFIG_USB_TUSB_OMAP_DMA)
exit:
#endif
/* Analyze request */
- rxstate(musb, to_musb_request(request));
+ rxstate(musb, req);
}
/* ------------------------------------------------------------ */
@@ -974,7 +978,7 @@ static int musb_gadget_enable(struct usb_ep *ep,
ok = musb->hb_iso_rx;
if (!ok) {
- DBG(4, "%s: not support ISO high bandwidth\n", __func__);
+ DBG(4, "no support for high bandwidth ISO\n");
goto fail;
}
musb_ep->hb_mult = (tmp >> 11) & 3;
@@ -998,7 +1002,7 @@ static int musb_gadget_enable(struct usb_ep *ep,
goto fail;
if (tmp > hw_ep->max_packet_sz_tx) {
- DBG(4, "%s: packet size beyond hw fifo size\n", __func__);
+ DBG(4, "packet size beyond hardware FIFO size\n");
goto fail;
}
@@ -1038,7 +1042,7 @@ static int musb_gadget_enable(struct usb_ep *ep,
goto fail;
if (tmp > hw_ep->max_packet_sz_rx) {
- DBG(4, "%s: packet size beyond hw fifo size\n", __func__);
+ DBG(4, "packet size beyond hardware FIFO size\n");
goto fail;
}
@@ -1171,7 +1175,6 @@ struct usb_request *musb_alloc_request(struct usb_ep *ep, gfp_t gfp_flags)
return NULL;
}
- INIT_LIST_HEAD(&request->request.list);
request->request.dma = DMA_ADDR_INVALID;
request->epnum = musb_ep->current_epnum;
request->ep = musb_ep;
@@ -1257,10 +1260,10 @@ static int musb_gadget_queue(struct usb_ep *ep, struct usb_request *req,
}
/* add request to the list */
- list_add_tail(&(request->request.list), &(musb_ep->req_list));
+ list_add_tail(&request->list, &musb_ep->req_list);
/* it this is the head of the queue, start i/o ... */
- if (!musb_ep->busy && &request->request.list == musb_ep->req_list.next)
+ if (!musb_ep->busy && &request->list == musb_ep->req_list.next)
musb_ep_restart(musb, request);
cleanup:
@@ -1271,7 +1274,8 @@ cleanup:
static int musb_gadget_dequeue(struct usb_ep *ep, struct usb_request *request)
{
struct musb_ep *musb_ep = to_musb_ep(ep);
- struct usb_request *r;
+ struct musb_request *req = to_musb_request(request);
+ struct musb_request *r;
unsigned long flags;
int status = 0;
struct musb *musb = musb_ep->musb;
@@ -1282,10 +1286,10 @@ static int musb_gadget_dequeue(struct usb_ep *ep, struct usb_request *request)
spin_lock_irqsave(&musb->lock, flags);
list_for_each_entry(r, &musb_ep->req_list, list) {
- if (r == request)
+ if (r == req)
break;
}
- if (r != request) {
+ if (r != req) {
DBG(3, "request %p not queued to %s\n", request, ep->name);
status = -EINVAL;
goto done;
@@ -1349,7 +1353,7 @@ static int musb_gadget_set_halt(struct usb_ep *ep, int value)
musb_ep_select(mbase, epnum);
- request = to_musb_request(next_request(musb_ep));
+ request = next_request(musb_ep);
if (value) {
if (request) {
DBG(3, "request in progress, cannot halt %s\n",
@@ -1801,90 +1805,105 @@ void musb_gadget_cleanup(struct musb *musb)
int usb_gadget_probe_driver(struct usb_gadget_driver *driver,
int (*bind)(struct usb_gadget *))
{
- int retval;
- unsigned long flags;
- struct musb *musb = the_gadget;
+ struct musb *musb = the_gadget;
+ unsigned long flags;
+ int retval = -EINVAL;
if (!driver
|| driver->speed != USB_SPEED_HIGH
|| !bind || !driver->setup)
- return -EINVAL;
+ goto err0;
/* driver must be initialized to support peripheral mode */
if (!musb) {
- DBG(1, "%s, no dev??\n", __func__);
- return -ENODEV;
+ DBG(1, "no dev??\n");
+ retval = -ENODEV;
+ goto err0;
}
+ pm_runtime_get_sync(musb->controller);
+
DBG(3, "registering driver %s\n", driver->function);
- spin_lock_irqsave(&musb->lock, flags);
if (musb->gadget_driver) {
DBG(1, "%s is already bound to %s\n",
musb_driver_name,
musb->gadget_driver->driver.name);
retval = -EBUSY;
- } else {
- musb->gadget_driver = driver;
- musb->g.dev.driver = &driver->driver;
- driver->driver.bus = NULL;
- musb->softconnect = 1;
- retval = 0;
+ goto err0;
}
+ spin_lock_irqsave(&musb->lock, flags);
+ musb->gadget_driver = driver;
+ musb->g.dev.driver = &driver->driver;
+ driver->driver.bus = NULL;
+ musb->softconnect = 1;
spin_unlock_irqrestore(&musb->lock, flags);
- if (retval == 0) {
- retval = bind(&musb->g);
- if (retval != 0) {
- DBG(3, "bind to driver %s failed --> %d\n",
- driver->driver.name, retval);
- musb->gadget_driver = NULL;
- musb->g.dev.driver = NULL;
- }
+ retval = bind(&musb->g);
+ if (retval) {
+ DBG(3, "bind to driver %s failed --> %d\n",
+ driver->driver.name, retval);
+ goto err1;
+ }
- spin_lock_irqsave(&musb->lock, flags);
+ spin_lock_irqsave(&musb->lock, flags);
- otg_set_peripheral(musb->xceiv, &musb->g);
- musb->xceiv->state = OTG_STATE_B_IDLE;
- musb->is_active = 1;
+ otg_set_peripheral(musb->xceiv, &musb->g);
+ musb->xceiv->state = OTG_STATE_B_IDLE;
+ musb->is_active = 1;
- /* FIXME this ignores the softconnect flag. Drivers are
- * allowed hold the peripheral inactive until for example
- * userspace hooks up printer hardware or DSP codecs, so
- * hosts only see fully functional devices.
- */
+ /*
+ * FIXME this ignores the softconnect flag. Drivers are
+ * allowed hold the peripheral inactive until for example
+ * userspace hooks up printer hardware or DSP codecs, so
+ * hosts only see fully functional devices.
+ */
- if (!is_otg_enabled(musb))
- musb_start(musb);
+ if (!is_otg_enabled(musb))
+ musb_start(musb);
- otg_set_peripheral(musb->xceiv, &musb->g);
+ otg_set_peripheral(musb->xceiv, &musb->g);
- spin_unlock_irqrestore(&musb->lock, flags);
+ spin_unlock_irqrestore(&musb->lock, flags);
- if (is_otg_enabled(musb)) {
- struct usb_hcd *hcd = musb_to_hcd(musb);
+ if (is_otg_enabled(musb)) {
+ struct usb_hcd *hcd = musb_to_hcd(musb);
- DBG(3, "OTG startup...\n");
+ DBG(3, "OTG startup...\n");
- /* REVISIT: funcall to other code, which also
- * handles power budgeting ... this way also
- * ensures HdrcStart is indirectly called.
- */
- retval = usb_add_hcd(musb_to_hcd(musb), -1, 0);
- if (retval < 0) {
- DBG(1, "add_hcd failed, %d\n", retval);
- spin_lock_irqsave(&musb->lock, flags);
- otg_set_peripheral(musb->xceiv, NULL);
- musb->gadget_driver = NULL;
- musb->g.dev.driver = NULL;
- spin_unlock_irqrestore(&musb->lock, flags);
- } else {
- hcd->self.uses_pio_for_control = 1;
- }
+ /* REVISIT: funcall to other code, which also
+ * handles power budgeting ... this way also
+ * ensures HdrcStart is indirectly called.
+ */
+ retval = usb_add_hcd(musb_to_hcd(musb), -1, 0);
+ if (retval < 0) {
+ DBG(1, "add_hcd failed, %d\n", retval);
+ goto err2;
+
+ if ((musb->xceiv->last_event == USB_EVENT_ID)
+ && musb->xceiv->set_vbus)
+ otg_set_vbus(musb->xceiv, 1);
}
+
+ hcd->self.uses_pio_for_control = 1;
+
+ if (musb->xceiv->last_event == USB_EVENT_NONE)
+ pm_runtime_put(musb->controller);
+
}
+ return 0;
+
+err2:
+ if (!is_otg_enabled(musb))
+ musb_stop(musb);
+
+err1:
+ musb->gadget_driver = NULL;
+ musb->g.dev.driver = NULL;
+
+err0:
return retval;
}
EXPORT_SYMBOL(usb_gadget_probe_driver);
@@ -1939,14 +1958,20 @@ static void stop_activity(struct musb *musb, struct usb_gadget_driver *driver)
*/
int usb_gadget_unregister_driver(struct usb_gadget_driver *driver)
{
- unsigned long flags;
- int retval = 0;
struct musb *musb = the_gadget;
+ unsigned long flags;
if (!driver || !driver->unbind || !musb)
return -EINVAL;
- /* REVISIT always use otg_set_peripheral() here too;
+ if (!musb->gadget_driver)
+ return -EINVAL;
+
+ if (musb->xceiv->last_event == USB_EVENT_NONE)
+ pm_runtime_get_sync(musb->controller);
+
+ /*
+ * REVISIT always use otg_set_peripheral() here too;
* this needs to shut down the OTG engine.
*/
@@ -1956,29 +1981,26 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver)
musb_hnp_stop(musb);
#endif
- if (musb->gadget_driver == driver) {
+ (void) musb_gadget_vbus_draw(&musb->g, 0);
- (void) musb_gadget_vbus_draw(&musb->g, 0);
+ musb->xceiv->state = OTG_STATE_UNDEFINED;
+ stop_activity(musb, driver);
+ otg_set_peripheral(musb->xceiv, NULL);
- musb->xceiv->state = OTG_STATE_UNDEFINED;
- stop_activity(musb, driver);
- otg_set_peripheral(musb->xceiv, NULL);
+ DBG(3, "unregistering driver %s\n", driver->function);
- DBG(3, "unregistering driver %s\n", driver->function);
- spin_unlock_irqrestore(&musb->lock, flags);
- driver->unbind(&musb->g);
- spin_lock_irqsave(&musb->lock, flags);
+ spin_unlock_irqrestore(&musb->lock, flags);
+ driver->unbind(&musb->g);
+ spin_lock_irqsave(&musb->lock, flags);
- musb->gadget_driver = NULL;
- musb->g.dev.driver = NULL;
+ musb->gadget_driver = NULL;
+ musb->g.dev.driver = NULL;
- musb->is_active = 0;
- musb_platform_try_idle(musb, 0);
- } else
- retval = -EINVAL;
+ musb->is_active = 0;
+ musb_platform_try_idle(musb, 0);
spin_unlock_irqrestore(&musb->lock, flags);
- if (is_otg_enabled(musb) && retval == 0) {
+ if (is_otg_enabled(musb)) {
usb_remove_hcd(musb_to_hcd(musb));
/* FIXME we need to be able to register another
* gadget driver here and have everything work;
@@ -1986,7 +2008,12 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver)
*/
}
- return retval;
+ if (!is_otg_enabled(musb))
+ musb_stop(musb);
+
+ pm_runtime_put(musb->controller);
+
+ return 0;
}
EXPORT_SYMBOL(usb_gadget_unregister_driver);
diff --git a/drivers/usb/musb/musb_gadget.h b/drivers/usb/musb/musb_gadget.h
index a55354f..66b7c5e 100644
--- a/drivers/usb/musb/musb_gadget.h
+++ b/drivers/usb/musb/musb_gadget.h
@@ -35,6 +35,8 @@
#ifndef __MUSB_GADGET_H
#define __MUSB_GADGET_H
+#include <linux/list.h>
+
enum buffer_map_state {
UN_MAPPED = 0,
PRE_MAPPED,
@@ -43,6 +45,7 @@ enum buffer_map_state {
struct musb_request {
struct usb_request request;
+ struct list_head list;
struct musb_ep *ep;
struct musb *musb;
u8 tx; /* endpoint direction */
@@ -94,13 +97,13 @@ static inline struct musb_ep *to_musb_ep(struct usb_ep *ep)
return ep ? container_of(ep, struct musb_ep, end_point) : NULL;
}
-static inline struct usb_request *next_request(struct musb_ep *ep)
+static inline struct musb_request *next_request(struct musb_ep *ep)
{
struct list_head *queue = &ep->req_list;
if (list_empty(queue))
return NULL;
- return container_of(queue->next, struct usb_request, list);
+ return container_of(queue->next, struct musb_request, list);
}
extern void musb_g_tx(struct musb *musb, u8 epnum);
diff --git a/drivers/usb/musb/musb_gadget_ep0.c b/drivers/usb/musb/musb_gadget_ep0.c
index 6dd03f4..75a542e 100644
--- a/drivers/usb/musb/musb_gadget_ep0.c
+++ b/drivers/usb/musb/musb_gadget_ep0.c
@@ -304,8 +304,7 @@ __acquires(musb->lock)
}
/* Maybe start the first request in the queue */
- request = to_musb_request(
- next_request(musb_ep));
+ request = next_request(musb_ep);
if (!musb_ep->busy && request) {
DBG(3, "restarting the request\n");
musb_ep_restart(musb, request);
@@ -491,10 +490,12 @@ stall:
static void ep0_rxstate(struct musb *musb)
{
void __iomem *regs = musb->control_ep->regs;
+ struct musb_request *request;
struct usb_request *req;
u16 count, csr;
- req = next_ep0_request(musb);
+ request = next_ep0_request(musb);
+ req = &request->request;
/* read packet and ack; or stall because of gadget driver bug:
* should have provided the rx buffer before setup() returned.
@@ -544,17 +545,20 @@ static void ep0_rxstate(struct musb *musb)
static void ep0_txstate(struct musb *musb)
{
void __iomem *regs = musb->control_ep->regs;
- struct usb_request *request = next_ep0_request(musb);
+ struct musb_request *req = next_ep0_request(musb);
+ struct usb_request *request;
u16 csr = MUSB_CSR0_TXPKTRDY;
u8 *fifo_src;
u8 fifo_count;
- if (!request) {
+ if (!req) {
/* WARN_ON(1); */
DBG(2, "odd; csr0 %04x\n", musb_readw(regs, MUSB_CSR0));
return;
}
+ request = &req->request;
+
/* load the data */
fifo_src = (u8 *) request->buf + request->actual;
fifo_count = min((unsigned) MUSB_EP0_FIFOSIZE,
@@ -598,7 +602,7 @@ static void ep0_txstate(struct musb *musb)
static void
musb_read_setup(struct musb *musb, struct usb_ctrlrequest *req)
{
- struct usb_request *r;
+ struct musb_request *r;
void __iomem *regs = musb->control_ep->regs;
musb_read_fifo(&musb->endpoints[0], sizeof *req, (u8 *)req);
@@ -616,7 +620,7 @@ musb_read_setup(struct musb *musb, struct usb_ctrlrequest *req)
/* clean up any leftover transfers */
r = next_ep0_request(musb);
if (r)
- musb_g_ep0_giveback(musb, r);
+ musb_g_ep0_giveback(musb, &r->request);
/* For zero-data requests we want to delay the STATUS stage to
* avoid SETUPEND errors. If we read data (OUT), delay accepting
@@ -758,11 +762,11 @@ irqreturn_t musb_g_ep0_irq(struct musb *musb)
case MUSB_EP0_STAGE_STATUSOUT:
/* end of sequence #1: write to host (TX state) */
{
- struct usb_request *req;
+ struct musb_request *req;
req = next_ep0_request(musb);
if (req)
- musb_g_ep0_giveback(musb, req);
+ musb_g_ep0_giveback(musb, &req->request);
}
/*
@@ -961,7 +965,7 @@ musb_g_ep0_queue(struct usb_ep *e, struct usb_request *r, gfp_t gfp_flags)
}
/* add request to the list */
- list_add_tail(&(req->request.list), &(ep->req_list));
+ list_add_tail(&req->list, &ep->req_list);
DBG(3, "queue to %s (%s), length=%d\n",
ep->name, ep->is_in ? "IN/TX" : "OUT/RX",
diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c
index 0f523d7..5eef4a8 100644
--- a/drivers/usb/musb/musb_host.c
+++ b/drivers/usb/musb/musb_host.c
@@ -1335,7 +1335,7 @@ void musb_host_tx(struct musb *musb, u8 epnum)
if (length > qh->maxpacket)
length = qh->maxpacket;
/* Unmap the buffer so that CPU can use it */
- unmap_urb_for_dma(musb_to_hcd(musb), urb);
+ usb_hcd_unmap_urb_for_dma(musb_to_hcd(musb), urb);
musb_write_fifo(hw_ep, length, urb->transfer_buffer + offset);
qh->segsize = length;
@@ -1757,7 +1757,7 @@ void musb_host_rx(struct musb *musb, u8 epnum)
if (!dma) {
/* Unmap the buffer so that CPU can use it */
- unmap_urb_for_dma(musb_to_hcd(musb), urb);
+ usb_hcd_unmap_urb_for_dma(musb_to_hcd(musb), urb);
done = musb_host_packet_rx(musb, urb,
epnum, iso_err);
DBG(6, "read %spacket\n", done ? "last " : "");
diff --git a/drivers/usb/musb/musb_virthub.c b/drivers/usb/musb/musb_virthub.c
index b46d187..489104a 100644
--- a/drivers/usb/musb/musb_virthub.c
+++ b/drivers/usb/musb/musb_virthub.c
@@ -305,8 +305,8 @@ int musb_hub_control(
desc->bHubContrCurrent = 0;
/* workaround bogus struct definition */
- desc->DeviceRemovable[0] = 0x02; /* port 1 */
- desc->DeviceRemovable[1] = 0xff;
+ desc->u.hs.DeviceRemovable[0] = 0x02; /* port 1 */
+ desc->u.hs.DeviceRemovable[1] = 0xff;
}
break;
case GetHubStatus:
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index bc8badd..25cb8b0 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -33,6 +33,8 @@
#include <linux/io.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
+#include <linux/pm_runtime.h>
+#include <linux/err.h>
#include "musb_core.h"
#include "omap2430.h"
@@ -40,7 +42,6 @@
struct omap2430_glue {
struct device *dev;
struct platform_device *musb;
- struct clk *clk;
};
#define glue_to_musb(g) platform_get_drvdata(g->musb)
@@ -216,20 +217,12 @@ static inline void omap2430_low_level_exit(struct musb *musb)
l = musb_readl(musb->mregs, OTG_FORCESTDBY);
l |= ENABLEFORCE; /* enable MSTANDBY */
musb_writel(musb->mregs, OTG_FORCESTDBY, l);
-
- l = musb_readl(musb->mregs, OTG_SYSCONFIG);
- l |= ENABLEWAKEUP; /* enable wakeup */
- musb_writel(musb->mregs, OTG_SYSCONFIG, l);
}
static inline void omap2430_low_level_init(struct musb *musb)
{
u32 l;
- l = musb_readl(musb->mregs, OTG_SYSCONFIG);
- l &= ~ENABLEWAKEUP; /* disable wakeup */
- musb_writel(musb->mregs, OTG_SYSCONFIG, l);
-
l = musb_readl(musb->mregs, OTG_FORCESTDBY);
l &= ~ENABLEFORCE; /* disable MSTANDBY */
musb_writel(musb->mregs, OTG_FORCESTDBY, l);
@@ -251,31 +244,39 @@ static int musb_otg_notifications(struct notifier_block *nb,
if (is_otg_enabled(musb)) {
#ifdef CONFIG_USB_GADGET_MUSB_HDRC
if (musb->gadget_driver) {
+ pm_runtime_get_sync(musb->controller);
otg_init(musb->xceiv);
-
- if (data->interface_type ==
- MUSB_INTERFACE_UTMI)
- omap2430_musb_set_vbus(musb, 1);
-
+ omap2430_musb_set_vbus(musb, 1);
}
#endif
} else {
+ pm_runtime_get_sync(musb->controller);
otg_init(musb->xceiv);
- if (data->interface_type ==
- MUSB_INTERFACE_UTMI)
- omap2430_musb_set_vbus(musb, 1);
+ omap2430_musb_set_vbus(musb, 1);
}
break;
case USB_EVENT_VBUS:
DBG(4, "VBUS Connect\n");
+ if (musb->gadget_driver)
+ pm_runtime_get_sync(musb->controller);
+
otg_init(musb->xceiv);
break;
case USB_EVENT_NONE:
DBG(4, "VBUS Disconnect\n");
+#ifdef CONFIG_USB_GADGET_MUSB_HDRC
+ if (is_otg_enabled(musb))
+ if (musb->gadget_driver)
+#endif
+ {
+ pm_runtime_mark_last_busy(musb->controller);
+ pm_runtime_put_autosuspend(musb->controller);
+ }
+
if (data->interface_type == MUSB_INTERFACE_UTMI) {
if (musb->xceiv->set_vbus)
otg_set_vbus(musb->xceiv, 0);
@@ -307,22 +308,11 @@ static int omap2430_musb_init(struct musb *musb)
return -ENODEV;
}
- omap2430_low_level_init(musb);
-
- l = musb_readl(musb->mregs, OTG_SYSCONFIG);
- l &= ~ENABLEWAKEUP; /* disable wakeup */
- l &= ~NOSTDBY; /* remove possible nostdby */
- l |= SMARTSTDBY; /* enable smart standby */
- l &= ~AUTOIDLE; /* disable auto idle */
- l &= ~NOIDLE; /* remove possible noidle */
- l |= SMARTIDLE; /* enable smart idle */
- /*
- * MUSB AUTOIDLE don't work in 3430.
- * Workaround by Richard Woodruff/TI
- */
- if (!cpu_is_omap3430())
- l |= AUTOIDLE; /* enable auto idle */
- musb_writel(musb->mregs, OTG_SYSCONFIG, l);
+ status = pm_runtime_get_sync(dev);
+ if (status < 0) {
+ dev_err(dev, "pm_runtime_get_sync FAILED");
+ goto err1;
+ }
l = musb_readl(musb->mregs, OTG_INTERFSEL);
@@ -350,14 +340,58 @@ static int omap2430_musb_init(struct musb *musb)
if (status)
DBG(1, "notification register failed\n");
- /* check whether cable is already connected */
- if (musb->xceiv->state ==OTG_STATE_B_IDLE)
- musb_otg_notifications(&musb->nb, 1,
- musb->xceiv->gadget);
-
setup_timer(&musb_idle_timer, musb_do_idle, (unsigned long) musb);
return 0;
+
+err1:
+ pm_runtime_disable(dev);
+ return status;
+}
+
+static void omap2430_musb_enable(struct musb *musb)
+{
+ u8 devctl;
+ unsigned long timeout = jiffies + msecs_to_jiffies(1000);
+ struct device *dev = musb->controller;
+ struct musb_hdrc_platform_data *pdata = dev->platform_data;
+ struct omap_musb_board_data *data = pdata->board_data;
+
+ switch (musb->xceiv->last_event) {
+
+ case USB_EVENT_ID:
+ otg_init(musb->xceiv);
+ if (data->interface_type == MUSB_INTERFACE_UTMI) {
+ devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
+ /* start the session */
+ devctl |= MUSB_DEVCTL_SESSION;
+ musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);
+ while (musb_readb(musb->mregs, MUSB_DEVCTL) &
+ MUSB_DEVCTL_BDEVICE) {
+ cpu_relax();
+
+ if (time_after(jiffies, timeout)) {
+ dev_err(musb->controller,
+ "configured as A device timeout");
+ break;
+ }
+ }
+ }
+ break;
+
+ case USB_EVENT_VBUS:
+ otg_init(musb->xceiv);
+ break;
+
+ default:
+ break;
+ }
+}
+
+static void omap2430_musb_disable(struct musb *musb)
+{
+ if (musb->xceiv->last_event)
+ otg_shutdown(musb->xceiv);
}
static int omap2430_musb_exit(struct musb *musb)
@@ -378,6 +412,9 @@ static const struct musb_platform_ops omap2430_ops = {
.try_idle = omap2430_musb_try_idle,
.set_vbus = omap2430_musb_set_vbus,
+
+ .enable = omap2430_musb_enable,
+ .disable = omap2430_musb_disable,
};
static u64 omap2430_dmamask = DMA_BIT_MASK(32);
@@ -387,8 +424,6 @@ static int __init omap2430_probe(struct platform_device *pdev)
struct musb_hdrc_platform_data *pdata = pdev->dev.platform_data;
struct platform_device *musb;
struct omap2430_glue *glue;
- struct clk *clk;
-
int ret = -ENOMEM;
glue = kzalloc(sizeof(*glue), GFP_KERNEL);
@@ -403,26 +438,12 @@ static int __init omap2430_probe(struct platform_device *pdev)
goto err1;
}
- clk = clk_get(&pdev->dev, "ick");
- if (IS_ERR(clk)) {
- dev_err(&pdev->dev, "failed to get clock\n");
- ret = PTR_ERR(clk);
- goto err2;
- }
-
- ret = clk_enable(clk);
- if (ret) {
- dev_err(&pdev->dev, "failed to enable clock\n");
- goto err3;
- }
-
musb->dev.parent = &pdev->dev;
musb->dev.dma_mask = &omap2430_dmamask;
musb->dev.coherent_dma_mask = omap2430_dmamask;
glue->dev = &pdev->dev;
glue->musb = musb;
- glue->clk = clk;
pdata->platform_ops = &omap2430_ops;
@@ -432,28 +453,24 @@ static int __init omap2430_probe(struct platform_device *pdev)
pdev->num_resources);
if (ret) {
dev_err(&pdev->dev, "failed to add resources\n");
- goto err4;
+ goto err2;
}
ret = platform_device_add_data(musb, pdata, sizeof(*pdata));
if (ret) {
dev_err(&pdev->dev, "failed to add platform_data\n");
- goto err4;
+ goto err2;
}
ret = platform_device_add(musb);
if (ret) {
dev_err(&pdev->dev, "failed to register musb device\n");
- goto err4;
+ goto err2;
}
- return 0;
-
-err4:
- clk_disable(clk);
+ pm_runtime_enable(&pdev->dev);
-err3:
- clk_put(clk);
+ return 0;
err2:
platform_device_put(musb);
@@ -471,61 +488,40 @@ static int __exit omap2430_remove(struct platform_device *pdev)
platform_device_del(glue->musb);
platform_device_put(glue->musb);
- clk_disable(glue->clk);
- clk_put(glue->clk);
+ pm_runtime_put(&pdev->dev);
+ pm_runtime_disable(&pdev->dev);
kfree(glue);
return 0;
}
#ifdef CONFIG_PM
-static void omap2430_save_context(struct musb *musb)
-{
- musb->context.otg_sysconfig = musb_readl(musb->mregs, OTG_SYSCONFIG);
- musb->context.otg_forcestandby = musb_readl(musb->mregs, OTG_FORCESTDBY);
-}
-static void omap2430_restore_context(struct musb *musb)
-{
- musb_writel(musb->mregs, OTG_SYSCONFIG, musb->context.otg_sysconfig);
- musb_writel(musb->mregs, OTG_FORCESTDBY, musb->context.otg_forcestandby);
-}
-
-static int omap2430_suspend(struct device *dev)
+static int omap2430_runtime_suspend(struct device *dev)
{
struct omap2430_glue *glue = dev_get_drvdata(dev);
struct musb *musb = glue_to_musb(glue);
omap2430_low_level_exit(musb);
otg_set_suspend(musb->xceiv, 1);
- omap2430_save_context(musb);
- clk_disable(glue->clk);
return 0;
}
-static int omap2430_resume(struct device *dev)
+static int omap2430_runtime_resume(struct device *dev)
{
struct omap2430_glue *glue = dev_get_drvdata(dev);
struct musb *musb = glue_to_musb(glue);
- int ret;
-
- ret = clk_enable(glue->clk);
- if (ret) {
- dev_err(dev, "faled to enable clock\n");
- return ret;
- }
omap2430_low_level_init(musb);
- omap2430_restore_context(musb);
otg_set_suspend(musb->xceiv, 0);
return 0;
}
static struct dev_pm_ops omap2430_pm_ops = {
- .suspend = omap2430_suspend,
- .resume = omap2430_resume,
+ .runtime_suspend = omap2430_runtime_suspend,
+ .runtime_resume = omap2430_runtime_resume,
};
#define DEV_PM_OPS (&omap2430_pm_ops)
diff --git a/drivers/usb/musb/tusb6010_omap.c b/drivers/usb/musb/tusb6010_omap.c
index c061a88..99cb541 100644
--- a/drivers/usb/musb/tusb6010_omap.c
+++ b/drivers/usb/musb/tusb6010_omap.c
@@ -680,7 +680,7 @@ dma_controller_create(struct musb *musb, void __iomem *base)
tusb_dma = kzalloc(sizeof(struct tusb_omap_dma), GFP_KERNEL);
if (!tusb_dma)
- goto cleanup;
+ goto out;
tusb_dma->musb = musb;
tusb_dma->tbase = musb->ctrl_base;
@@ -721,6 +721,6 @@ dma_controller_create(struct musb *musb, void __iomem *base)
cleanup:
dma_controller_destroy(&tusb_dma->controller);
-
+out:
return NULL;
}
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