x86, quirk: Fix SB600 revision check

commit 1d3e09a304e6c4e004ca06356578b171e8735d3c upstream.

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@gmail.com>
Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
LKML-Reference: <20110315143137.GD29499@alberich.amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c
index 1b894b72c0f5df35a1d489def584086ebb2affe5..67a3a3d2c4ba25af054d39ed5e4baed0900efa68 100644 (file)
--- a/arch/x86/kernel/early-quirks.c
+++ b/arch/x86/kernel/early-quirks.c
@@ -163,7 +163,12 @@ static void __init ati_bugs_contd(int num, int slot, int func)
                return;
 
        rev = ati_sbx00_rev(num, slot, func);
-       if (rev > 0x13)
+       /*
+        * SB600: revisions 0x11, 0x12, 0x13, 0x14, ...
+        * SB700: revisions 0x39, 0x3a, ...
+        * SB800: revisions 0x40, 0x41, ...
+        */
+       if (rev >= 0x39)
                return;
 
        /* check for IRQ0 interrupt swap */