mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-10-05 00:20:32 +00:00
Code Issues Releases Wiki Activity

usb: cdnsp: fix the wrong mult value for HS isoc or intr

Browse source 
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: 3d82904559 ("usb: cdnsp: cdns3 Add main part of Cadence USBSSP DRD Driver")
Cc: stable@vger.kernel.org
Acked-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/1628836253-7432-4-git-send-email-chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Chunfeng Yun 2021-08-13 14:30:50 +08:00 committed by Greg Kroah-Hartman
parent 44e4439d8f
commit e9ab75f26e
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
drivers/usb/cdns3/cdnsp-mem.c
View file

@ -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;
}