This is a note to let you know that I've just added the patch titled
usb: dwc3: Increase DWC3 controller halt timeout
to the 5.4-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-dwc3-increase-dwc3-controller-halt-timeout.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 9fee28e325247cfef1b7cdd40366be4d2ee4c11c
Author: Wesley Cheng <quic_wcheng@xxxxxxxxxxx>
Date: Thu Sep 1 12:36:23 2022 -0700
usb: dwc3: Increase DWC3 controller halt timeout
[ Upstream commit 461ee467507cb98a348fa91ff8460908bb0ea423 ]
Since EP0 transactions need to be completed before the controller halt
sequence is finished, this may take some time depending on the host and the
enabled functions. Increase the controller halt timeout, so that we give
the controller sufficient time to handle EP0 transfers.
Signed-off-by: Wesley Cheng <quic_wcheng@xxxxxxxxxxx>
Link: https://lore.kernel.org/r/20220901193625.8727-4-quic_wcheng@xxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Stable-dep-of: d3a8c28426fc ("usb: dwc3: Fix timeout issue during controller enter/exit from halt state")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 6caedef5575d7..f9232c099f494 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -1966,7 +1966,7 @@ static void dwc3_stop_active_transfers(struct dwc3 *dwc)
static int dwc3_gadget_run_stop(struct dwc3 *dwc, int is_on, int suspend)
{
u32 reg;
- u32 timeout = 500;
+ u32 timeout = 2000;
if (pm_runtime_suspended(dwc->dev))
return 0;
@@ -1998,6 +1998,7 @@ static int dwc3_gadget_run_stop(struct dwc3 *dwc, int is_on, int suspend)
dwc3_writel(dwc->regs, DWC3_DCTL, reg);
do {
+ usleep_range(1000, 2000);
reg = dwc3_readl(dwc->regs, DWC3_DSTS);
reg &= DWC3_DSTS_DEVCTRLHLT;
} while (--timeout && !(!is_on ^ !reg));
