Add controller attach/detach support by using
usb_gadget_ops.pullup() method.
Signed-off-by: Zixun LI <z...@ogga.fr>
---
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 = {
--
2.45.2
