From: Michael Grzeschik <m.grzeschik@xxxxxxxxxxxxxx> The datasheet of the synopsys core describes only to overwrite the active and halted bits in the qhead before priming any endpoint. Signed-off-by: Michael Grzeschik <m.grzeschik@xxxxxxxxxxxxxx> Reviewed-by: Felipe Balbi <balbi@xxxxxx> [Alex: fixed a case of line-too-long] Signed-off-by: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx> --- drivers/usb/chipidea/udc.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c index ff393e1..0e11172 100644 --- a/drivers/usb/chipidea/udc.c +++ b/drivers/usb/chipidea/udc.c @@ -461,7 +461,8 @@ static int _hardware_enqueue(struct ci13xxx_ep *mEp, struct ci13xxx_req *mReq) /* QH configuration */ mEp->qh.ptr->td.next = cpu_to_le32(mReq->dma); /* TERMINATE = 0 */ - mEp->qh.ptr->td.token &= cpu_to_le32(~TD_STATUS); /* clear status */ + mEp->qh.ptr->td.token &= + cpu_to_le32(~(TD_STATUS_HALTED|TD_STATUS_ACTIVE)); mEp->qh.ptr->cap |= cpu_to_le32(QH_ZLT); wmb(); /* synchronize before ep prime */ -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
