[PATCH v3 4/7] usb: cdnsp: fix the wrong mult value for HS isoc or intr

[Chunfeng Yun]

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 at vger.kernel.org
Acked-by: Felipe Balbi <balbi at kernel.org>
Signed-off-by: Chunfeng Yun <chunfeng.yun at mediatek.com>
---
v3: fix invalid email format for stable
v2: add fixes, cc suggested by Felipe
---
 drivers/usb/cdns3/cdnsp-mem.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/cdns3/cdnsp-mem.c b/drivers/usb/cdns3/cdnsp-mem.c
index a47948a1623f..ad9aee3f1e39 100644
--- 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(struct usb_gadget *g,
 	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;
 }
-- 
2.18.0