This is a note to let you know that I've just added the patch titled
usb: dwc2: Fix HPRT0.PrtSusp bit setting for HiKey 960 board.
to the 4.19-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-dwc2-fix-hprt0.prtsusp-bit-setting-for-hikey-960-board.patch
and it can be found in the queue-4.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 5e3bbae8ee3d677a0aa2919dc62b5c60ea01ba61 Mon Sep 17 00:00:00 2001
From: Artur Petrosyan <Arthur.Petrosyan@xxxxxxxxxxxx>
Date: Fri, 26 Mar 2021 14:24:46 +0400
Subject: usb: dwc2: Fix HPRT0.PrtSusp bit setting for HiKey 960 board.
From: Artur Petrosyan <Arthur.Petrosyan@xxxxxxxxxxxx>
commit 5e3bbae8ee3d677a0aa2919dc62b5c60ea01ba61 upstream.
Increased the waiting timeout for HPRT0.PrtSusp register field
to be set, because on HiKey 960 board HPRT0.PrtSusp wasn't
generated with the existing timeout.
Cc: <stable@xxxxxxxxxxxxxxx> # 4.18
Fixes: 22bb5cfdf13a ("usb: dwc2: Fix host exit from hibernation flow.")
Signed-off-by: Artur Petrosyan <Arthur.Petrosyan@xxxxxxxxxxxx>
Acked-by: Minas Harutyunyan <Minas.Harutyunyan@xxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20210326102447.8F7FEA005D@xxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/dwc2/hcd.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/usb/dwc2/hcd.c
+++ b/drivers/usb/dwc2/hcd.c
@@ -5560,7 +5560,7 @@ int dwc2_host_enter_hibernation(struct d
dwc2_writel(hsotg, hprt0, HPRT0);
/* Wait for the HPRT0.PrtSusp register field to be set */
- if (dwc2_hsotg_wait_bit_set(hsotg, HPRT0, HPRT0_SUSP, 3000))
+ if (dwc2_hsotg_wait_bit_set(hsotg, HPRT0, HPRT0_SUSP, 5000))
dev_warn(hsotg->dev, "Suspend wasn't generated\n");
/*
Patches currently in stable-queue which might be from Arthur.Petrosyan@xxxxxxxxxxxx are
queue-4.19/usb-dwc2-fix-hprt0.prtsusp-bit-setting-for-hikey-960-board.patch
