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authorNeil Zhang <zhangwm@marvell.com>2011-10-12 16:49:30 +0800
committerFelipe Balbi <balbi@ti.com>2011-10-13 20:42:02 +0300
commit96c2bbb09d0742148a305d7afbdf7c5803fd78c1 (patch)
tree85f75eeedcaedf0200631d3c5176ce2862ae5bef /drivers/usb
parentfbebe1f070a73c108415bb9ee0483570650e2712 (diff)
downloadlinux-96c2bbb09d0742148a305d7afbdf7c5803fd78c1.tar.bz2
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>
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/gadget/mv_udc_core.c3
1 files changed, 1 insertions, 2 deletions
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 {