diff options
| author | Alan Stern <stern@rowland.harvard.edu> | 2014-11-06 14:27:56 +0800 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2014-11-10 17:19:35 -0600 |
| commit | b611e424f1ad189409dde50fe950eb8c05f75cab (patch) | |
| tree | cb2a6cc0cdcb9b36f31ee1a25c935b2cd50d8a4c /drivers/usb | |
| parent | 8480484d6f4a5b7d50262702db082b0fd13e7df5 (diff) | |
usb: gadget: net2280: use udc-core's reset notifier
This patch adds support for the new udc-core reset notifier to the
net2280 driver.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/gadget/udc/net2280.c | 45 |
1 files changed, 35 insertions, 10 deletions
diff --git a/drivers/usb/gadget/udc/net2280.c b/drivers/usb/gadget/udc/net2280.c index bd03a1b4192d..c49179493796 100644 --- a/drivers/usb/gadget/udc/net2280.c +++ b/drivers/usb/gadget/udc/net2280.c @@ -3308,17 +3308,42 @@ static void handle_stat1_irqs(struct net2280 *dev, u32 stat) * only indicates a change in the reset state). */ if (stat & tmp) { + bool reset = false; + bool disconnect = false; + + /* + * Ignore disconnects and resets if the speed hasn't been set. + * VBUS can bounce and there's always an initial reset. + */ writel(tmp, &dev->regs->irqstat1); - if ((((stat & BIT(ROOT_PORT_RESET_INTERRUPT)) && - ((readl(&dev->usb->usbstat) & mask) == 0)) || - ((readl(&dev->usb->usbctl) & - BIT(VBUS_PIN)) == 0)) && - (dev->gadget.speed != USB_SPEED_UNKNOWN)) { - ep_dbg(dev, "disconnect %s\n", - dev->driver->driver.name); - stop_activity(dev, dev->driver); - ep0_start(dev); - return; + if (dev->gadget.speed != USB_SPEED_UNKNOWN) { + if ((stat & BIT(VBUS_INTERRUPT)) && + (readl(&dev->usb->usbctl) & + BIT(VBUS_PIN)) == 0) { + disconnect = true; + ep_dbg(dev, "disconnect %s\n", + dev->driver->driver.name); + } else if ((stat & BIT(ROOT_PORT_RESET_INTERRUPT)) && + (readl(&dev->usb->usbstat) & mask) + == 0) { + reset = true; + ep_dbg(dev, "reset %s\n", + dev->driver->driver.name); + } + + if (disconnect || reset) { + stop_activity(dev, dev->driver); + ep0_start(dev); + spin_unlock(&dev->lock); + if (reset) + usb_gadget_udc_reset + (&dev->gadget, dev->driver); + else + (dev->driver->disconnect) + (&dev->gadget); + spin_lock(&dev->lock); + return; + } } stat &= ~tmp; |