From: Chunfeng Yun <chunfeng.yun@xxxxxxxxxxxx>
commit e9ab75f26eb9354dfc03aea3401b8cfb42cd6718 upstream.
usb_endpoint_maxp() only returns the bit[10:0] of wMaxPacketSize
of endpoint descriptor, not include bit[12:11] anymore, so use
usb_endpoint_maxp_mult() instead.
Fixes: 3d82904559f4 ("usb: cdnsp: cdns3 Add main part of Cadence USBSSP DRD Driver")
Cc: stable@xxxxxxxxxxxxxxx
Acked-by: Felipe Balbi <balbi@xxxxxxxxxx>
Signed-off-by: Chunfeng Yun <chunfeng.yun@xxxxxxxxxxxx>
Link: https://lore.kernel.org/r/1628836253-7432-4-git-send-email-chunfeng.yun@xxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/cdns3/cdnsp-mem.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/usb/cdns3/cdnsp-mem.c
+++ b/drivers/usb/cdns3/cdnsp-mem.c
@@ -882,7 +882,7 @@ static u32 cdnsp_get_endpoint_max_burst(
if (g->speed == USB_SPEED_HIGH &&
(usb_endpoint_xfer_isoc(pep->endpoint.desc) ||
usb_endpoint_xfer_int(pep->endpoint.desc)))
- return (usb_endpoint_maxp(pep->endpoint.desc) & 0x1800) >> 11;
+ return usb_endpoint_maxp_mult(pep->endpoint.desc) - 1;
return 0;
}
