usb:ci_udc: don't overwrite configuration on pullup
change writel to writebits32 in ci_pullup() in order
to keep phy configuration in tact.
Signed-off-by: Ramon Fried <ramon.fried@gmail.com>
diff --git a/drivers/usb/gadget/ci_udc.c b/drivers/usb/gadget/ci_udc.c
index 8d23fab..0a84f68 100644
--- a/drivers/usb/gadget/ci_udc.c
+++ b/drivers/usb/gadget/ci_udc.c
@@ -906,7 +906,8 @@
writel(0xffffffff, &udc->epflush);
/* Turn on the USB connection by enabling the pullup resistor */
- writel(USBCMD_ITC(MICRO_8FRAME) | USBCMD_RUN, &udc->usbcmd);
+ setbits_le32(&udc->usbcmd, USBCMD_ITC(MICRO_8FRAME) |
+ USBCMD_RUN);
} else {
udc_disconnect();
}