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Revert "ACPI: processor: idle: fix lockup regression on 32-bit ThinkPad T40"

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commit 20e582e16af24b074e583f9551fad557882a3c9d upstream.

This reverts commit bfe55a1f7fd6bfede16078bf04c6250fbca11588.

This was presumably misdiagnosed as an inability to use C3 at
all when I suspect the real problem is just misconfiguration of
C3 vs. ARB_DIS.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: 5.16+ <stable@vger.kernel.org> # 5.16+
Tested-by: Woody Suwalski <wsuwalski@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ville Syrjälä 2022-04-20 16:44:17 +03:00 committed by Greg Kroah-Hartman
parent 2688d967ec
commit 746140625a
1 changed files with 0 additions and 5 deletions
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5
drivers/acpi/processor_idle.c
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@ -95,11 +95,6 @@ static const struct dmi_system_id processor_power_dmi_table[] = {
DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
DMI_MATCH(DMI_PRODUCT_NAME,"L8400B series Notebook PC")},
(void *)1},
/* T40 can not handle C3 idle state */
{ set_max_cstate, "IBM ThinkPad T40", {
DMI_MATCH(DMI_SYS_VENDOR, "IBM"),
DMI_MATCH(DMI_PRODUCT_NAME, "23737CU")},
(void *)2},
{},
};