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usb: gadget: net2280: fix pullup handling

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Gadget must be informed about disconnection when pullup is removed.

Tested-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Mian Yousaf Kaukab 2015-05-16 22:33:39 +02:00 committed by Felipe Balbi
parent 971fe65670
commit 11bece5e06
1 changed files with 11 additions and 5 deletions
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16
drivers/usb/gadget/udc/net2280.c
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@ -124,6 +124,9 @@ static char *type_string(u8 bmAttributes)
#define dma_done_ie cpu_to_le32(BIT(DMA_DONE_INTERRUPT_ENABLE))
static void ep_clear_seqnum(struct net2280_ep *ep);
static void stop_activity(struct net2280 *dev,
struct usb_gadget_driver *driver);
static void ep0_start(struct net2280 *dev);
/*-------------------------------------------------------------------------*/
static inline void enable_pciirqenb(struct net2280_ep *ep)
@ -1495,11 +1498,14 @@ static int net2280_pullup(struct usb_gadget *_gadget, int is_on)
spin_lock_irqsave(&dev->lock, flags);
tmp = readl(&dev->usb->usbctl);
dev->softconnect = (is_on != 0);
if (is_on)
tmp |= BIT(USB_DETECT_ENABLE);
else
tmp &= ~BIT(USB_DETECT_ENABLE);
writel(tmp, &dev->usb->usbctl);
if (is_on) {
ep0_start(dev);
writel(tmp | BIT(USB_DETECT_ENABLE), &dev->usb->usbctl);
} else {
writel(tmp & ~BIT(USB_DETECT_ENABLE), &dev->usb->usbctl);
stop_activity(dev, dev->driver);
}
spin_unlock_irqrestore(&dev->lock, flags);
return 0;