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-rw-r--r--drivers/usb/musb/musb_hcd.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/usb/musb/musb_hcd.c b/drivers/usb/musb/musb_hcd.c
index 5481600..adb8c38 100644
--- a/drivers/usb/musb/musb_hcd.c
+++ b/drivers/usb/musb/musb_hcd.c
@@ -604,7 +604,8 @@ int submit_bulk_msg(struct usb_device *dev, unsigned long pipe,
(len-txlen) : dev->epmaxpacketin[ep];
/* Set the ReqPkt bit */
- writew(MUSB_RXCSR_H_REQPKT, &musbr->rxcsr);
+ csr = readw(&musbr->rxcsr);
+ writew(csr | MUSB_RXCSR_H_REQPKT, &musbr->rxcsr);
/* Wait until the RxPktRdy bit is set */
if (!wait_until_rxep_ready(dev, MUSB_BULK_EP)) {
@@ -775,7 +776,8 @@ int submit_int_msg(struct usb_device *dev, unsigned long pipe,
(len-txlen) : dev->epmaxpacketin[ep];
/* Set the ReqPkt bit */
- writew(MUSB_RXCSR_H_REQPKT, &musbr->rxcsr);
+ csr = readw(&musbr->rxcsr);
+ writew(csr | MUSB_RXCSR_H_REQPKT, &musbr->rxcsr);
/* Wait until the RxPktRdy bit is set */
if (!wait_until_rxep_ready(dev, MUSB_INTR_EP)) {