linux-kernel - [tip:x86/urgent] x86, quirk: Fix SB600 revision check

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Date:	Wed, 16 Mar 2011 13:56:43 GMT
From:	tip-bot for Andreas Herrmann <andreas.herrmann3@....com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com,
	f3d27b@...il.com, akpm@...ux-foundation.org,
	andreas.herrmann3@....com, tglx@...utronix.de, mingo@...e.hu
Subject: [tip:x86/urgent] x86, quirk: Fix SB600 revision check

Commit-ID:  1d3e09a304e6c4e004ca06356578b171e8735d3c
Gitweb:     http://git.kernel.org/tip/1d3e09a304e6c4e004ca06356578b171e8735d3c
Author:     Andreas Herrmann <andreas.herrmann3@....com>
AuthorDate: Tue, 15 Mar 2011 15:31:37 +0100
Committer:  Ingo Molnar <mingo@...e.hu>
CommitDate: Wed, 16 Mar 2011 14:03:32 +0100

x86, quirk: Fix SB600 revision check

Commit 7f74f8f28a2bd9db9404f7d364e2097a0c42cc12
(x86 quirk: Fix polarity for IRQ0 pin2 override on SB800
systems) introduced a regression. It removed some SB600 specific
code to determine the revision ID without adapting a
corresponding revision ID check for SB600.

See this mail thread:

  http://marc.info/?l=linux-kernel&m=129980296006380&w=2

This patch adapts the corresponding check to cover all SB600
revisions.

Tested-by: Wang Lei <f3d27b@...il.com>
Signed-off-by: Andreas Herrmann <andreas.herrmann3@....com>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: stable@...nel.org # 38.x, 37.x, 32.x
LKML-Reference: <20110315143137.GD29499@...erich.amd.com>
Signed-off-by: Ingo Molnar <mingo@...e.hu>
---
 arch/x86/kernel/early-quirks.c |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)

diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c
index 9efbdcc..3755ef4 100644
--- a/arch/x86/kernel/early-quirks.c
+++ b/arch/x86/kernel/early-quirks.c
@@ -159,7 +159,12 @@ static void __init ati_bugs_contd(int num, int slot, int func)
 	if (rev >= 0x40)
 		acpi_fix_pin2_polarity = 1;
 
-	if (rev > 0x13)
+	/*
+	 * SB600: revisions 0x11, 0x12, 0x13, 0x14, ...
+	 * SB700: revisions 0x39, 0x3a, ...
+	 * SB800: revisions 0x40, 0x41, ...
+	 */
+	if (rev >= 0x39)
 		return;
 
 	if (acpi_use_timer_override)
--
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