]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
usb: xhci: fix interrupt transfer error happened on MTK platforms
authorChunfeng Yun <chunfeng.yun@mediatek.com>
Fri, 7 Sep 2018 07:29:12 +0000 (15:29 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 10 Sep 2018 18:40:29 +0000 (20:40 +0200)
commit0a3b53305c8ff427bbc1d9d5bd78524007f19600
treec41e7b95a0e7a1a7134f27c5d858d567baf9564c
parentbfa150f37f80fc65ac23dc457faf8eb2cd6232d0
usb: xhci: fix interrupt transfer error happened on MTK platforms

The MTK xHCI controller use some reserved bytes in endpoint context for
bandwidth scheduling, so need keep them in xhci_endpoint_copy();

The issue is introduced by:
commit f5249461b504 ("xhci: Clear the host side toggle manually when
endpoint is soft reset")
It resets endpoints and will drop bandwidth scheduling parameters used
by interrupt or isochronous endpoints on MTK xHCI controller.
Fixes: f5249461b504 ("xhci: Clear the host side toggle manually when
endpoint is soft reset")

Cc: stable@vger.kernel.org
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Tested-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/host/xhci-mem.c