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 <zhangwm@marvell.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
diff --git a/drivers/usb/gadget/mv_udc_core.c b/drivers/usb/gadget/mv_udc_core.c
index 8dab8c4..fcb980d 100644
--- a/drivers/usb/gadget/mv_udc_core.c
+++ b/drivers/usb/gadget/mv_udc_core.c
@@ -1631,8 +1631,7 @@
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 {