diff options
Diffstat (limited to 'drivers/usb/musb')
-rw-r--r-- | drivers/usb/musb/musb_core.c | 66 | ||||
-rw-r--r-- | drivers/usb/musb/musb_core.h | 25 | ||||
-rw-r--r-- | drivers/usb/musb/musb_gadget.c | 217 | ||||
-rw-r--r-- | drivers/usb/musb/musb_gadget.h | 7 | ||||
-rw-r--r-- | drivers/usb/musb/musb_gadget_ep0.c | 24 | ||||
-rw-r--r-- | drivers/usb/musb/musb_host.c | 4 | ||||
-rw-r--r-- | drivers/usb/musb/musb_virthub.c | 4 | ||||
-rw-r--r-- | drivers/usb/musb/omap2430.c | 177 | ||||
-rw-r--r-- | drivers/usb/musb/tusb6010_omap.c | 4 |
9 files changed, 286 insertions, 242 deletions
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c index 54a8bd1..a914010 100644 --- a/drivers/usb/musb/musb_core.c +++ b/drivers/usb/musb/musb_core.c @@ -1864,6 +1864,7 @@ allocate_instance(struct device *dev, INIT_LIST_HEAD(&musb->out_bulk); hcd->uses_new_polling = 1; + hcd->has_tt = 1; musb->vbuserr_retry = VBUSERR_RETRY_COUNT; musb->a_wait_bcon = OTG_TIME_A_WAIT_BCON; @@ -1949,31 +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) { @@ -1981,6 +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; @@ -2116,6 +2096,8 @@ bad_config: if (status < 0) goto fail3; + pm_runtime_put(musb->controller); + status = musb_init_debugfs(musb); if (status < 0) goto fail4; @@ -2215,9 +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); @@ -2403,9 +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 d74a811..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; @@ -488,6 +484,15 @@ struct musb { unsigned set_address:1; unsigned test_mode:1; unsigned softconnect:1; + + u8 address; + u8 test_mode_nr; + u16 ackpend; /* ep0 */ + enum musb_g_ep0_state ep0_state; + struct usb_gadget g; /* the gadget */ + struct usb_gadget_driver *gadget_driver; /* its driver */ +#endif + /* * FIXME: Remove this flag. * @@ -501,14 +506,6 @@ struct musb { */ unsigned double_buffer_not_ok:1 __deprecated; - u8 address; - u8 test_mode_nr; - u16 ackpend; /* ep0 */ - enum musb_g_ep0_state ep0_state; - struct usb_gadget g; /* the gadget */ - struct usb_gadget_driver *gadget_driver; /* its driver */ -#endif - struct musb_hdrc_config *config; #ifdef MUSB_CONFIG_PROC_FS 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 a3f1233..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); @@ -350,18 +340,63 @@ 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) { + del_timer_sync(&musb_idle_timer); omap2430_low_level_exit(musb); otg_put_transceiver(musb->xceiv); @@ -377,6 +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); @@ -386,8 +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); @@ -402,26 +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; @@ -431,28 +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); @@ -470,61 +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; } |