Add controller attach/detach support by using usb_gadget_ops.pullup() function.
Signed-off-by: Zixun LI admin@hifiphile.com --- drivers/usb/gadget/atmel_usba_udc.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+)
diff --git a/drivers/usb/gadget/atmel_usba_udc.c b/drivers/usb/gadget/atmel_usba_udc.c index ea9ad7585e..a7b96449f8 100644 --- a/drivers/usb/gadget/atmel_usba_udc.c +++ b/drivers/usb/gadget/atmel_usba_udc.c @@ -506,10 +506,28 @@ usba_udc_set_selfpowered(struct usb_gadget *gadget, int is_selfpowered) return 0; }
+static int usba_udc_pullup(struct usb_gadget *gadget, int is_on) +{ + struct usba_udc *udc = to_usba_udc(gadget); + u32 ctrl; + + ctrl = usba_readl(udc, CTRL); + + if (is_on) + ctrl &= ~USBA_DETACH; + else + ctrl |= USBA_DETACH; + + usba_writel(udc, CTRL, ctrl); + + return 0; +} + static const struct usb_gadget_ops usba_udc_ops = { .get_frame = usba_udc_get_frame, .wakeup = usba_udc_wakeup, .set_selfpowered = usba_udc_set_selfpowered, + .pullup = usba_udc_pullup, };
static struct usb_endpoint_descriptor usba_ep0_desc = {