This is a note to let you know that I've just added the patch titled
usb: cdns3: fix issue with rearming ISO OUT endpoint
to the 5.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
usb-cdns3-fix-issue-with-rearming-iso-out-endpoint.patch
and it can be found in the queue-5.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From b46a6b09fa056042a302b181a1941f0056944603 Mon Sep 17 00:00:00 2001
From: Pawel Laszczak <pawell@xxxxxxxxxxx>
Date: Thu, 25 Aug 2022 08:21:37 +0200
Subject: usb: cdns3: fix issue with rearming ISO OUT endpoint
From: Pawel Laszczak <pawell@xxxxxxxxxxx>
commit b46a6b09fa056042a302b181a1941f0056944603 upstream.
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@xxxxxxxxxxxxxxx>
Acked-by: Peter Chen <peter.chen@xxxxxxxxxx>
Signed-off-by: Pawel Laszczak <pawell@xxxxxxxxxxx>
Link: https://lore.kernel.org/r/20220825062137.5766-1-pawell@xxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/cdns3/cdns3-gadget.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/usb/cdns3/cdns3-gadget.c
+++ b/drivers/usb/cdns3/cdns3-gadget.c
@@ -1690,6 +1690,7 @@ static int cdns3_check_ep_interrupt_proc
ep_cfg &= ~EP_CFG_ENABLE;
writel(ep_cfg, &priv_dev->regs->ep_cfg);
priv_ep->flags &= ~EP_QUIRK_ISO_OUT_EN;
+ priv_ep->flags |= EP_UPDATE_EP_TRBADDR;
}
cdns3_transfer_completed(priv_dev, priv_ep);
} else if (!(priv_ep->flags & EP_STALLED) &&
Patches currently in stable-queue which might be from pawell@xxxxxxxxxxx are
queue-5.19/usb-cdns3-fix-incorrect-handling-trb_smm-flag-for-isoc-transfer.patch
queue-5.19/usb-cdns3-fix-issue-with-rearming-iso-out-endpoint.patch
