Fwd: [PATCH] usb-otg: atmel-usba-udc: initialize usb_prev to the actual value
loïc tourlonias
loic.tourlonias at gmail.com
Tue Apr 21 05:52:35 PDT 2015
During start of the usb gadget device, usb_prev must be initialize to
the actual value of vbus_pin to avoid missing the first usb host
detection.
Signed-off-by: ltourlonias <loic.tourlonias at gmail.com>
---
drivers/usb/gadget/atmel_usba_udc.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/usb/gadget/atmel_usba_udc.c
b/drivers/usb/gadget/atmel_usba_udc.c
index 1d97222..258edf9 100644
--- a/drivers/usb/gadget/atmel_usba_udc.c
+++ b/drivers/usb/gadget/atmel_usba_udc.c
@@ -1796,6 +1796,7 @@ static int atmel_usba_start(struct usb_gadget *gadget,
toggle_bias(1);
usba_writel(udc, CTRL, USBA_ENABLE_MASK);
usba_writel(udc, INT_ENB, USBA_END_OF_RESET);
+ udc->vbus_prev=1;
}
spin_unlock_irqrestore(&udc->lock, flags);
--
1.7.10.4
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