From: Shengzhou Liu <Shengzhou.Liu@freescale.com>
Date: Wed, 17 Apr 2013 10:03:46 +0000 (+0800)
Subject: usb: remove redundant tdi_reset
X-Git-Tag: firefly_0821_release~3680^2~672^2~40
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=61ac6ac8d662ac7ac67c864954d39d1b19948354;p=firefly-linux-kernel-4.4.55.git

usb: remove redundant tdi_reset

We remove the redundant tdi_reset in ehci_setup since there
is already it in ehci_reset.
It was observed that the duplicated tdi_reset was causing
the PHY_CLK_VALID bit unstable.

Reported-by: Michael Braun <michael-dev@fami-braun.de>
Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@vger.kernel.org> # 3.6+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 2e0c2bd6495f..312fc10da3c7 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -673,9 +673,6 @@ int ehci_setup(struct usb_hcd *hcd)
 	if (retval)
 		return retval;
 
-	if (ehci_is_TDI(ehci))
-		tdi_reset(ehci);
-
 	ehci_reset(ehci);
 
 	return 0;