linux-kernel - [PATCH] EHCI pci-quirks.c: wait for BIOS handoff too long

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Message-Id: <1225774635-15032-1-git-send-email-steven@uplinklabs.net>
Date:	Mon,  3 Nov 2008 20:57:15 -0800
From:	Steven Noonan <steven@...inklabs.net>
To:	linux-kernel@...r.kernel.org
Cc:	Steven Noonan <steven@...inklabs.net>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Alan Stern <stern@...land.harvard.edu>,
	Greg KH <greg@...ah.com>, David Brownell <david-b@...bell.net>
Subject: [PATCH] EHCI pci-quirks.c: wait for BIOS handoff too long

Instead of waiting a painful 5000ms, quirk_usb_disable_ehci() now does a
1000ms loop to wait for the BIOS to acknowledge the handoff.

Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: Alan Stern <stern@...land.harvard.edu>
Cc: Greg KH <greg@...ah.com>
Cc: David Brownell <david-b@...bell.net>
Signed-off-by: Steven Noonan <steven@...inklabs.net>
---
 drivers/usb/host/pci-quirks.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c
index ae6e70e..1968ba1 100644
--- a/drivers/usb/host/pci-quirks.c
+++ b/drivers/usb/host/pci-quirks.c
@@ -271,7 +271,7 @@ static void __devinit quirk_usb_disable_ehci(struct pci_dev *pdev)
 			/* if boot firmware now owns EHCI, spin till
 			 * it hands it over.
 			 */
-			msec = 5000;
+			msec = 1000;
 			while ((cap & EHCI_USBLEGSUP_BIOS) && (msec > 0)) {
 				tried_handoff = 1;
 				msleep(10);
-- 
1.5.6.3

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