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usb: gadget: mv_udc: fix a clerical error

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The max size of data payload is in bit0 - bit10, so we need use 0x7ff
as the bitmask to fetch from usb_endpoint_descriptor.wMaxPacketSize.

Signed-off-by: Neil Zhang <zhangwm@marvell.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Neil Zhang 2011-10-12 16:49:27 +08:00 committed by Felipe Balbi
parent 4540a9ab31
commit bedcff970e
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/gadget/mv_udc_core.c
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@ -546,7 +546,7 @@ static int mv_ep_enable(struct usb_ep *_ep,
case USB_ENDPOINT_XFER_ISOC: case USB_ENDPOINT_XFER_ISOC:
/* Calculate transactions needed for high bandwidth iso */ /* Calculate transactions needed for high bandwidth iso */
mult = (unsigned char)(1 + ((max >> 11) & 0x03)); mult = (unsigned char)(1 + ((max >> 11) & 0x03));
max = max & 0x8ff; /* bit 0~10 */ max = max & 0x7ff; /* bit 0~10 */
/* 3 transactions at most */ /* 3 transactions at most */
if (mult > 3) if (mult > 3)
goto en_done; goto en_done;