[ACPI] Regression 2.6.23-rc3 fails to boot (acpi)

From: Alex Hunsaker
Date: Sun Aug 19 2007 - 04:46:11 EST


Hangs on boot with:
ACPI: EC: GPE = 0x4, I/O: command/status = 0x66, data = 0x62
ACPI: Interpreter enabled
ACPI: (supports S0 S3)
ACPI: Using PIC for interrupt routing
ACIP: EC: GPE = 0x4, I/O: command/status = 0x66, data = 0x62

2.6.23-rc2 is ok
2.6.23-rc3 bad
2.6.23-rc3-latest (7c010de7506954e973abfab5c5999c5a97f7a73e) bad

git-bisect narrowed it down to:

7c010de7506954e973abfab5c5999c5a97f7a73e
ACPI: EC: Switch from boot_ec as soon as we find its desc in DSDT.
Alexey Starikovskiy [Fri, 3 Aug 2007 21:57:53 +0000 (17:57 -0400)]
Some ASUS laptops fail to use boot time EC
and need to eventually switch to one described in DSDT.

http://bugzilla.kernel.org/show_bug.cgi?id=8709

Signed-off-by: Alexey Starikovskiy <astarikovskiy@xxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

Reverting the above commit fixes the problem.
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