]> git.itanic.dy.fi Git - linux-stable/commit
usb: cdns3: fix issue with rearming ISO OUT endpoint
authorPawel Laszczak <pawell@cadence.com>
Thu, 25 Aug 2022 06:21:37 +0000 (08:21 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 30 Aug 2022 13:33:15 +0000 (15:33 +0200)
commitb46a6b09fa056042a302b181a1941f0056944603
tree5e54cfb13c6afecbc998898bd037c2f9e9deefb4
parentd5dcc33677d7415c5f23b3c052f9e80cbab9ea4e
usb: cdns3: fix issue with rearming ISO OUT endpoint

ISO OUT endpoint is enabled during queuing first usb request
in transfer ring and disabled when TRBERR is reported by controller.
After TRBERR and before next transfer added to TR driver must again
reenable endpoint but does not.
To solve this issue during processing TRBERR event driver must
set the flag EP_UPDATE_EP_TRBADDR in priv_ep->flags field.

Fixes: 7733f6c32e36 ("usb: cdns3: Add Cadence USB3 DRD Driver")
cc: <stable@vger.kernel.org>
Acked-by: Peter Chen <peter.chen@kernel.org>
Signed-off-by: Pawel Laszczak <pawell@cadence.com>
Link: https://lore.kernel.org/r/20220825062137.5766-1-pawell@cadence.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/cdns3/cdns3-gadget.c