From 5e3bbae8ee3d677a0aa2919dc62b5c60ea01ba61 Mon Sep 17 00:00:00 2001
From: Artur Petrosyan <Arthur.Petrosyan@synopsys.com>
Date: Fri, 26 Mar 2021 14:24:46 +0400
Subject: [PATCH] usb: dwc2: Fix HPRT0.PrtSusp bit setting for HiKey 960 board.
Git-commit: 5e3bbae8ee3d677a0aa2919dc62b5c60ea01ba61
Patch-mainline: v5.12-rc6
References: git-fixes
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@vger.kernel.org> # 4.18
Fixes: 22bb5cfdf13a ("usb: dwc2: Fix host exit from hibernation flow.")
Signed-off-by: Artur Petrosyan <Arthur.Petrosyan@synopsys.com>
Acked-by: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com>
Link: https://lore.kernel.org/r/20210326102447.8F7FEA005D@mailhost.synopsys.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/usb/dwc2/hcd.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c
index fc3269f5faf1..40e5655921bf 100644
--- a/drivers/usb/dwc2/hcd.c
+++ b/drivers/usb/dwc2/hcd.c
@@ -5398,7 +5398,7 @@ int dwc2_host_enter_hibernation(struct dwc2_hsotg *hsotg)
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");
/*
--
2.26.2