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author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-12-14 22:57:16 (GMT) |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-12-14 22:57:16 (GMT) |
commit | e7cf773d431a63a2417902696fcc9e0ebdc83bbe (patch) | |
tree | 86dbdceb7d91226507a3af0d57e03b0ca664b22e /drivers/usb/gadget/udc/mv_udc_core.c | |
parent | 7a02d089695a1217992434f03a78aa32bad85b5c (diff) | |
parent | 81e1dadfb5b2d47aa513ad60b1c9cf0ea17b6514 (diff) | |
download | linux-e7cf773d431a63a2417902696fcc9e0ebdc83bbe.tar.xz |
Merge tag 'usb-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB updates from Greg KH:
"Here's the big set of USB and PHY patches for 3.19-rc1.
The normal churn in the USB gadget area is in here, as well as xhci
and other individual USB driver updates. The PHY tree is also in
here, as there were dependancies on the USB tree.
All of these have been in linux-next"
* tag 'usb-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (351 commits)
arm: omap3: twl: remove usb phy init data
usbip: fix error handling in stub_probe()
usb: gadget: udc: missing curly braces
USB: mos7720: delete some unneeded code
wusb: replace memset by memzero_explicit
usbip: remove unneeded structure
usb: xhci: fix comment for PORT_DEV_REMOVE
xhci: don't use the same variable for stopped and halted rings current TD
xhci: clear extra bits from slot context when setting max exit latency
xhci: cleanup finish_td function
USB: adutux: NULL dereferences on disconnect
usb: chipidea: fix platform_no_drv_owner.cocci warnings
usb: chipidea: Fixed a few typos in comments
Documentation: bindings: add doc for the USB2 ChipIdea USB driver
usb: chipidea: add a usb2 driver for ci13xxx
usb: chipidea: fix phy handling
usb: chipidea: remove duplicate dev_set_drvdata for host_start
usb: chipidea: parameter 'mode' isn't needed for hw_device_reset
usb: chipidea: add controller reset API
usb: chipidea: remove flag CI_HDRC_REQUIRE_TRANSCEIVER
...
Diffstat (limited to 'drivers/usb/gadget/udc/mv_udc_core.c')
-rw-r--r-- | drivers/usb/gadget/udc/mv_udc_core.c | 32 |
1 files changed, 22 insertions, 10 deletions
diff --git a/drivers/usb/gadget/udc/mv_udc_core.c b/drivers/usb/gadget/udc/mv_udc_core.c index 3c5db80..d4edd76 100644 --- a/drivers/usb/gadget/udc/mv_udc_core.c +++ b/drivers/usb/gadget/udc/mv_udc_core.c @@ -1223,7 +1223,7 @@ static int mv_udc_pullup(struct usb_gadget *gadget, int is_on) } static int mv_udc_start(struct usb_gadget *, struct usb_gadget_driver *); -static int mv_udc_stop(struct usb_gadget *, struct usb_gadget_driver *); +static int mv_udc_stop(struct usb_gadget *); /* device controller usb_gadget_ops structure */ static const struct usb_gadget_ops mv_ops = { @@ -1307,6 +1307,23 @@ static void nuke(struct mv_ep *ep, int status) } } +static void gadget_reset(struct mv_udc *udc, struct usb_gadget_driver *driver) +{ + struct mv_ep *ep; + + nuke(&udc->eps[0], -ESHUTDOWN); + + list_for_each_entry(ep, &udc->gadget.ep_list, ep.ep_list) { + nuke(ep, -ESHUTDOWN); + } + + /* report reset; the driver is already quiesced */ + if (driver) { + spin_unlock(&udc->lock); + usb_gadget_udc_reset(&udc->gadget, driver); + spin_lock(&udc->lock); + } +} /* stop all USB activities */ static void stop_activity(struct mv_udc *udc, struct usb_gadget_driver *driver) { @@ -1371,8 +1388,7 @@ static int mv_udc_start(struct usb_gadget *gadget, return 0; } -static int mv_udc_stop(struct usb_gadget *gadget, - struct usb_gadget_driver *driver) +static int mv_udc_stop(struct usb_gadget *gadget) { struct mv_udc *udc; unsigned long flags; @@ -1386,7 +1402,7 @@ static int mv_udc_stop(struct usb_gadget *gadget, /* stop all usb activities */ udc->gadget.speed = USB_SPEED_UNKNOWN; - stop_activity(udc, driver); + stop_activity(udc, NULL); mv_udc_disable(udc); spin_unlock_irqrestore(&udc->lock, flags); @@ -1882,7 +1898,7 @@ static void irq_process_reset(struct mv_udc *udc) dev_info(&udc->dev->dev, "usb bus reset\n"); udc->usb_state = USB_STATE_DEFAULT; /* reset all the queues, stop all USB activities */ - stop_activity(udc, udc->driver); + gadget_reset(udc, udc->driver); } else { dev_info(&udc->dev->dev, "USB reset portsc 0x%x\n", readl(&udc->op_regs->portsc)); @@ -2107,10 +2123,8 @@ static int mv_udc_probe(struct platform_device *pdev) } udc = devm_kzalloc(&pdev->dev, sizeof(*udc), GFP_KERNEL); - if (udc == NULL) { - dev_err(&pdev->dev, "failed to allocate memory for udc\n"); + if (udc == NULL) return -ENOMEM; - } udc->done = &release_done; udc->pdata = dev_get_platdata(&pdev->dev); @@ -2207,7 +2221,6 @@ static int mv_udc_probe(struct platform_device *pdev) size = udc->max_eps * sizeof(struct mv_ep) *2; udc->eps = devm_kzalloc(&pdev->dev, size, GFP_KERNEL); if (udc->eps == NULL) { - dev_err(&pdev->dev, "allocate ep memory failed\n"); retval = -ENOMEM; goto err_destroy_dma; } @@ -2216,7 +2229,6 @@ static int mv_udc_probe(struct platform_device *pdev) udc->status_req = devm_kzalloc(&pdev->dev, sizeof(struct mv_req), GFP_KERNEL); if (!udc->status_req) { - dev_err(&pdev->dev, "allocate status_req memory failed\n"); retval = -ENOMEM; goto err_destroy_dma; } |