From: lyz <lyz@rock-chips.com>
Date: Mon, 4 Nov 2013 07:55:29 +0000 (+0800)
Subject: usb: fix bug Soft Reset HANG
X-Git-Tag: firefly_0821_release~6513
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=69aca6d1406c5a36d9b0bcd6664b52f6448c5937;p=firefly-linux-kernel-4.4.55.git

usb: fix bug Soft Reset HANG
---

diff --git a/drivers/usb/dwc_otg/dwc_otg_cil.c b/drivers/usb/dwc_otg/dwc_otg_cil.c
index 35e88832a256..649b76b16a34 100755
--- a/drivers/usb/dwc_otg/dwc_otg_cil.c
+++ b/drivers/usb/dwc_otg/dwc_otg_cil.c
@@ -2960,6 +2960,7 @@ void dwc_otg_core_reset(dwc_otg_core_if_t *_core_if)
 				greset.d32);
 			break;
 		}
+		UDELAY(1);
 	} 
 	while (greset.b.csftrst == 1);