diff mbox series

[2/2] Revert "ACPI: processor: idle: fix lockup regression on 32-bit ThinkPad T40"

Message ID 20220420134417.24546-2-ville.syrjala@linux.intel.com (mailing list archive)
State Mainlined, archived
Headers show
Series [1/2] ACPI: processor: Do not use C3 w/o ARB_DIS=1 | expand

Commit Message

Ville Syrjälä April 20, 2022, 1:44 p.m. UTC 
From: Ville Syrjälä <ville.syrjala@linux.intel.com>

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.

Cc: stable@vger.kernel.org
Cc: Woody Suwalski <wsuwalski@gmail.com>
Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Richard Gong <richard.gong@amd.com>
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
 drivers/acpi/processor_idle.c | 5 -----
 1 file changed, 5 deletions(-)
diff mbox series

Patch

diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 54f0a1915025..d4632b8adbc5 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -96,11 +96,6 @@  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},
 	{},
 };