From: Neil Zhang Date: Wed, 12 Oct 2011 08:49:30 +0000 (+0800) Subject: usb: gadget: mv_udc: fix bug when handle setup package. X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=96c2bbb09d0742148a305d7afbdf7c5803fd78c1;p=linux-beck.git usb: gadget: mv_udc: fix bug when handle setup package. For the code doesn't restrict controller ep must be ep0, so we will go through all the eps and check if there is a setup package received. And also we just need to acknowledge the corresponding bit in ENDPTSETUPSTAT register. Signed-off-by: Neil Zhang Signed-off-by: Felipe Balbi --- diff --git a/drivers/usb/gadget/mv_udc_core.c b/drivers/usb/gadget/mv_udc_core.c index 8dab8c4d10bd..fcb980def624 100644 --- a/drivers/usb/gadget/mv_udc_core.c +++ b/drivers/usb/gadget/mv_udc_core.c @@ -1631,8 +1631,7 @@ static void get_setup_data(struct mv_udc *udc, u8 ep_num, u8 *buffer_ptr) dqh = &udc->ep_dqh[ep_num * 2 + EP_DIR_OUT]; /* Clear bit in ENDPTSETUPSTAT */ - temp = readl(&udc->op_regs->epsetupstat); - writel(temp | (1 << ep_num), &udc->op_regs->epsetupstat); + writel((1 << ep_num), &udc->op_regs->epsetupstat); /* while a hazard exists when setup package arrives */ do {