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Diffstat (limited to 'config/coreboot/default/patches/0039-ec-lenovo-h8-Rework-invalid-temperature-reporting.patch')
-rw-r--r--config/coreboot/default/patches/0039-ec-lenovo-h8-Rework-invalid-temperature-reporting.patch488
1 files changed, 488 insertions, 0 deletions
diff --git a/config/coreboot/default/patches/0039-ec-lenovo-h8-Rework-invalid-temperature-reporting.patch b/config/coreboot/default/patches/0039-ec-lenovo-h8-Rework-invalid-temperature-reporting.patch
new file mode 100644
index 00000000..3e73a17d
--- /dev/null
+++ b/config/coreboot/default/patches/0039-ec-lenovo-h8-Rework-invalid-temperature-reporting.patch
@@ -0,0 +1,488 @@
+From aedef7382e27d1494768997a18e4d9351cb44cd6 Mon Sep 17 00:00:00 2001
+From: Matt DeVillier <matt.devillier@gmail.com>
+Date: Sat, 12 Jul 2025 17:28:13 -0500
+Subject: [PATCH 39/43] ec/lenovo/h8: Rework invalid temperature reporting
+
+As far back as the x201, Lenovo's EC ACPI has treated 128 as an invalid
+value, and returned a corrected value when it is reported/read from EC
+RAM. Drop the ME workaround, which most H8-equipped boards select, in
+favor of Lenovo's logic, since both accomplish the same result.
+
+Change-Id: Icdc91e439ec30c8263de5810a13e75f7595472a5
+Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
+---
+ src/ec/lenovo/h8/acpi/thermal.asl | 25 ++++++-------------
+ .../lenovo/haswell/acpi/platform.asl | 3 ---
+ src/mainboard/lenovo/haswell/dsdt.asl | 1 -
+ src/mainboard/lenovo/l520/acpi/platform.asl | 4 ---
+ src/mainboard/lenovo/l520/dsdt.asl | 1 -
+ src/mainboard/lenovo/s230u/dsdt.asl | 1 -
+ src/mainboard/lenovo/t400/dsdt.asl | 1 -
+ src/mainboard/lenovo/t410/dsdt.asl | 1 -
+ src/mainboard/lenovo/t420/acpi/platform.asl | 4 ---
+ src/mainboard/lenovo/t420/dsdt.asl | 1 -
+ src/mainboard/lenovo/t420s/acpi/platform.asl | 4 ---
+ src/mainboard/lenovo/t420s/dsdt.asl | 1 -
+ src/mainboard/lenovo/t430/acpi/platform.asl | 4 ---
+ src/mainboard/lenovo/t430/dsdt.asl | 1 -
+ src/mainboard/lenovo/t430s/acpi/platform.asl | 4 ---
+ src/mainboard/lenovo/t430s/dsdt.asl | 1 -
+ src/mainboard/lenovo/t520/acpi/platform.asl | 4 ---
+ src/mainboard/lenovo/t520/dsdt.asl | 1 -
+ src/mainboard/lenovo/t530/acpi/platform.asl | 4 ---
+ src/mainboard/lenovo/t530/dsdt.asl | 1 -
+ src/mainboard/lenovo/x131e/acpi/platform.asl | 4 ---
+ src/mainboard/lenovo/x131e/dsdt.asl | 1 -
+ .../lenovo/x1_carbon_gen1/acpi/platform.asl | 4 ---
+ src/mainboard/lenovo/x1_carbon_gen1/dsdt.asl | 1 -
+ src/mainboard/lenovo/x201/acpi/platform.asl | 4 ---
+ src/mainboard/lenovo/x201/dsdt.asl | 1 -
+ src/mainboard/lenovo/x220/acpi/platform.asl | 4 ---
+ src/mainboard/lenovo/x220/dsdt.asl | 1 -
+ src/mainboard/lenovo/x230/acpi/platform.asl | 4 ---
+ src/mainboard/lenovo/x230/dsdt.asl | 1 -
+ 30 files changed, 8 insertions(+), 84 deletions(-)
+
+diff --git a/src/ec/lenovo/h8/acpi/thermal.asl b/src/ec/lenovo/h8/acpi/thermal.asl
+index bf9b653e12..54f4f922bd 100644
+--- a/src/ec/lenovo/h8/acpi/thermal.asl
++++ b/src/ec/lenovo/h8/acpi/thermal.asl
+@@ -4,11 +4,6 @@
+
+ Scope(\_TZ)
+ {
+-#if defined(EC_LENOVO_H8_ME_WORKAROUND)
+- Name (MEB1, 0)
+- Name (MEB2, 0)
+-#endif
+-
+ Method(C2K, 1, NotSerialized)
+ {
+ Local0 = Arg0 * 10
+@@ -71,14 +66,12 @@ External (\PPKG, MethodObj)
+ }
+
+ Method(_TMP) {
+-#if defined(EC_LENOVO_H8_ME_WORKAROUND)
+- /* Avoid tripping alarm if ME isn't booted at all yet */
+- If (!MEB1 && \_SB.PCI0.LPCB.EC.TMP0 == 128) {
++ Local0 = \_SB.PCI0.LPCB.EC.TMP0
++ /* Avoid tripping alarm if invalid value reported */
++ If (Local0 == 128) {
+ Return (C2K(40))
+ }
+- MEB1 = 1
+-#endif
+- Return (C2K(\_SB.PCI0.LPCB.EC.TMP0))
++ Return (C2K(Local0))
+ }
+
+ Method (_AC0) {
+@@ -158,14 +151,12 @@ External (\PPKG, MethodObj)
+ }
+
+ Method(_TMP) {
+-#if defined(EC_LENOVO_H8_ME_WORKAROUND)
+- /* Avoid tripping alarm if ME isn't booted at all yet */
+- If (!MEB2 && \_SB.PCI0.LPCB.EC.TMP1 == 128) {
++ Local0 = \_SB.PCI0.LPCB.EC.TMP1
++ /* Avoid tripping alarm if invalid value reported */
++ If (Local0 == 128) {
+ Return (C2K(40))
+ }
+- MEB2 = 1
+-#endif
+- Return (C2K(\_SB.PCI0.LPCB.EC.TMP1))
++ Return (C2K(Local0))
+ }
+ }
+ #endif
+diff --git a/src/mainboard/lenovo/haswell/acpi/platform.asl b/src/mainboard/lenovo/haswell/acpi/platform.asl
+index f5a4df75f4..42587fd78a 100644
+--- a/src/mainboard/lenovo/haswell/acpi/platform.asl
++++ b/src/mainboard/lenovo/haswell/acpi/platform.asl
+@@ -2,9 +2,6 @@
+
+ Method(_WAK,1)
+ {
+- /* ME may not be up yet. */
+- \_TZ.MEB1 = 0
+- \_TZ.MEB2 = 0
+ Return(Package(){0,0})
+ }
+
+diff --git a/src/mainboard/lenovo/haswell/dsdt.asl b/src/mainboard/lenovo/haswell/dsdt.asl
+index a7afeee766..708f524b08 100644
+--- a/src/mainboard/lenovo/haswell/dsdt.asl
++++ b/src/mainboard/lenovo/haswell/dsdt.asl
+@@ -2,7 +2,6 @@
+
+ #define BRIGHTNESS_UP \_SB.PCI0.GFX0.INCB
+ #define BRIGHTNESS_DOWN \_SB.PCI0.GFX0.DECB
+-#define EC_LENOVO_H8_ME_WORKAROUND 1
+ #define THINKPAD_EC_GPE 17
+
+ #include <acpi/acpi.h>
+diff --git a/src/mainboard/lenovo/l520/acpi/platform.asl b/src/mainboard/lenovo/l520/acpi/platform.asl
+index c4becafc2a..9dee90edc3 100644
+--- a/src/mainboard/lenovo/l520/acpi/platform.asl
++++ b/src/mainboard/lenovo/l520/acpi/platform.asl
+@@ -15,10 +15,6 @@ Method(_PTS,1)
+
+ Method(_WAK,1)
+ {
+- /* ME may not be up yet. */
+- \_TZ.MEB1 = 0
+- \_TZ.MEB2 = 0
+-
+ /* Wake the HKEY to init BT/WWAN */
+ \_SB.PCI0.LPCB.EC.HKEY.WAKE (Arg0)
+
+diff --git a/src/mainboard/lenovo/l520/dsdt.asl b/src/mainboard/lenovo/l520/dsdt.asl
+index 06cffcf8a2..18e9f25a9a 100644
+--- a/src/mainboard/lenovo/l520/dsdt.asl
++++ b/src/mainboard/lenovo/l520/dsdt.asl
+@@ -3,7 +3,6 @@
+ #define THINKPAD_EC_GPE 22
+ #define BRIGHTNESS_UP \_SB.PCI0.GFX0.INCB
+ #define BRIGHTNESS_DOWN \_SB.PCI0.GFX0.DECB
+-#define EC_LENOVO_H8_ME_WORKAROUND 1
+
+ #include <acpi/acpi.h>
+ DefinitionBlock(
+diff --git a/src/mainboard/lenovo/s230u/dsdt.asl b/src/mainboard/lenovo/s230u/dsdt.asl
+index 861309b8e9..47e91fdb30 100644
+--- a/src/mainboard/lenovo/s230u/dsdt.asl
++++ b/src/mainboard/lenovo/s230u/dsdt.asl
+@@ -3,7 +3,6 @@
+ #define THINKPAD_EC_GPE 23
+ #define BRIGHTNESS_UP \_SB.PCI0.GFX0.INCB
+ #define BRIGHTNESS_DOWN \_SB.PCI0.GFX0.DECB
+-#define EC_LENOVO_H8_ME_WORKAROUND 1
+
+ #include <acpi/acpi.h>
+ DefinitionBlock(
+diff --git a/src/mainboard/lenovo/t400/dsdt.asl b/src/mainboard/lenovo/t400/dsdt.asl
+index f9c682f9dc..cb824e42da 100644
+--- a/src/mainboard/lenovo/t400/dsdt.asl
++++ b/src/mainboard/lenovo/t400/dsdt.asl
+@@ -3,7 +3,6 @@
+ #define THINKPAD_EC_GPE 17
+ #define BRIGHTNESS_UP \_SB.PCI0.GFX0.INCB
+ #define BRIGHTNESS_DOWN \_SB.PCI0.GFX0.DECB
+-#define EC_LENOVO_H8_ME_WORKAROUND 1
+
+ #include <acpi/acpi.h>
+ DefinitionBlock(
+diff --git a/src/mainboard/lenovo/t410/dsdt.asl b/src/mainboard/lenovo/t410/dsdt.asl
+index 42a10e605c..e2571f60c7 100644
+--- a/src/mainboard/lenovo/t410/dsdt.asl
++++ b/src/mainboard/lenovo/t410/dsdt.asl
+@@ -3,7 +3,6 @@
+ #define THINKPAD_EC_GPE 17
+ #define BRIGHTNESS_UP \_SB.PCI0.GFX0.INCB
+ #define BRIGHTNESS_DOWN \_SB.PCI0.GFX0.DECB
+-#define EC_LENOVO_H8_ME_WORKAROUND 1
+
+ #include <acpi/acpi.h>
+ DefinitionBlock(
+diff --git a/src/mainboard/lenovo/t420/acpi/platform.asl b/src/mainboard/lenovo/t420/acpi/platform.asl
+index c4becafc2a..9dee90edc3 100644
+--- a/src/mainboard/lenovo/t420/acpi/platform.asl
++++ b/src/mainboard/lenovo/t420/acpi/platform.asl
+@@ -15,10 +15,6 @@ Method(_PTS,1)
+
+ Method(_WAK,1)
+ {
+- /* ME may not be up yet. */
+- \_TZ.MEB1 = 0
+- \_TZ.MEB2 = 0
+-
+ /* Wake the HKEY to init BT/WWAN */
+ \_SB.PCI0.LPCB.EC.HKEY.WAKE (Arg0)
+
+diff --git a/src/mainboard/lenovo/t420/dsdt.asl b/src/mainboard/lenovo/t420/dsdt.asl
+index 33b6f80b17..1134782675 100644
+--- a/src/mainboard/lenovo/t420/dsdt.asl
++++ b/src/mainboard/lenovo/t420/dsdt.asl
+@@ -3,7 +3,6 @@
+ #define THINKPAD_EC_GPE 17
+ #define BRIGHTNESS_UP \_SB.PCI0.GFX0.INCB
+ #define BRIGHTNESS_DOWN \_SB.PCI0.GFX0.DECB
+-#define EC_LENOVO_H8_ME_WORKAROUND 1
+
+ #include <acpi/acpi.h>
+ DefinitionBlock(
+diff --git a/src/mainboard/lenovo/t420s/acpi/platform.asl b/src/mainboard/lenovo/t420s/acpi/platform.asl
+index c4becafc2a..9dee90edc3 100644
+--- a/src/mainboard/lenovo/t420s/acpi/platform.asl
++++ b/src/mainboard/lenovo/t420s/acpi/platform.asl
+@@ -15,10 +15,6 @@ Method(_PTS,1)
+
+ Method(_WAK,1)
+ {
+- /* ME may not be up yet. */
+- \_TZ.MEB1 = 0
+- \_TZ.MEB2 = 0
+-
+ /* Wake the HKEY to init BT/WWAN */
+ \_SB.PCI0.LPCB.EC.HKEY.WAKE (Arg0)
+
+diff --git a/src/mainboard/lenovo/t420s/dsdt.asl b/src/mainboard/lenovo/t420s/dsdt.asl
+index 33b6f80b17..1134782675 100644
+--- a/src/mainboard/lenovo/t420s/dsdt.asl
++++ b/src/mainboard/lenovo/t420s/dsdt.asl
+@@ -3,7 +3,6 @@
+ #define THINKPAD_EC_GPE 17
+ #define BRIGHTNESS_UP \_SB.PCI0.GFX0.INCB
+ #define BRIGHTNESS_DOWN \_SB.PCI0.GFX0.DECB
+-#define EC_LENOVO_H8_ME_WORKAROUND 1
+
+ #include <acpi/acpi.h>
+ DefinitionBlock(
+diff --git a/src/mainboard/lenovo/t430/acpi/platform.asl b/src/mainboard/lenovo/t430/acpi/platform.asl
+index c4becafc2a..9dee90edc3 100644
+--- a/src/mainboard/lenovo/t430/acpi/platform.asl
++++ b/src/mainboard/lenovo/t430/acpi/platform.asl
+@@ -15,10 +15,6 @@ Method(_PTS,1)
+
+ Method(_WAK,1)
+ {
+- /* ME may not be up yet. */
+- \_TZ.MEB1 = 0
+- \_TZ.MEB2 = 0
+-
+ /* Wake the HKEY to init BT/WWAN */
+ \_SB.PCI0.LPCB.EC.HKEY.WAKE (Arg0)
+
+diff --git a/src/mainboard/lenovo/t430/dsdt.asl b/src/mainboard/lenovo/t430/dsdt.asl
+index c19e75ee82..795f9a1ee9 100644
+--- a/src/mainboard/lenovo/t430/dsdt.asl
++++ b/src/mainboard/lenovo/t430/dsdt.asl
+@@ -3,7 +3,6 @@
+ #define THINKPAD_EC_GPE 17
+ #define BRIGHTNESS_UP \_SB.PCI0.GFX0.INCB
+ #define BRIGHTNESS_DOWN \_SB.PCI0.GFX0.DECB
+-#define EC_LENOVO_H8_ME_WORKAROUND 1
+
+ #include <acpi/acpi.h>
+ DefinitionBlock(
+diff --git a/src/mainboard/lenovo/t430s/acpi/platform.asl b/src/mainboard/lenovo/t430s/acpi/platform.asl
+index c4becafc2a..9dee90edc3 100644
+--- a/src/mainboard/lenovo/t430s/acpi/platform.asl
++++ b/src/mainboard/lenovo/t430s/acpi/platform.asl
+@@ -15,10 +15,6 @@ Method(_PTS,1)
+
+ Method(_WAK,1)
+ {
+- /* ME may not be up yet. */
+- \_TZ.MEB1 = 0
+- \_TZ.MEB2 = 0
+-
+ /* Wake the HKEY to init BT/WWAN */
+ \_SB.PCI0.LPCB.EC.HKEY.WAKE (Arg0)
+
+diff --git a/src/mainboard/lenovo/t430s/dsdt.asl b/src/mainboard/lenovo/t430s/dsdt.asl
+index 33b6f80b17..1134782675 100644
+--- a/src/mainboard/lenovo/t430s/dsdt.asl
++++ b/src/mainboard/lenovo/t430s/dsdt.asl
+@@ -3,7 +3,6 @@
+ #define THINKPAD_EC_GPE 17
+ #define BRIGHTNESS_UP \_SB.PCI0.GFX0.INCB
+ #define BRIGHTNESS_DOWN \_SB.PCI0.GFX0.DECB
+-#define EC_LENOVO_H8_ME_WORKAROUND 1
+
+ #include <acpi/acpi.h>
+ DefinitionBlock(
+diff --git a/src/mainboard/lenovo/t520/acpi/platform.asl b/src/mainboard/lenovo/t520/acpi/platform.asl
+index c4becafc2a..9dee90edc3 100644
+--- a/src/mainboard/lenovo/t520/acpi/platform.asl
++++ b/src/mainboard/lenovo/t520/acpi/platform.asl
+@@ -15,10 +15,6 @@ Method(_PTS,1)
+
+ Method(_WAK,1)
+ {
+- /* ME may not be up yet. */
+- \_TZ.MEB1 = 0
+- \_TZ.MEB2 = 0
+-
+ /* Wake the HKEY to init BT/WWAN */
+ \_SB.PCI0.LPCB.EC.HKEY.WAKE (Arg0)
+
+diff --git a/src/mainboard/lenovo/t520/dsdt.asl b/src/mainboard/lenovo/t520/dsdt.asl
+index 33b6f80b17..1134782675 100644
+--- a/src/mainboard/lenovo/t520/dsdt.asl
++++ b/src/mainboard/lenovo/t520/dsdt.asl
+@@ -3,7 +3,6 @@
+ #define THINKPAD_EC_GPE 17
+ #define BRIGHTNESS_UP \_SB.PCI0.GFX0.INCB
+ #define BRIGHTNESS_DOWN \_SB.PCI0.GFX0.DECB
+-#define EC_LENOVO_H8_ME_WORKAROUND 1
+
+ #include <acpi/acpi.h>
+ DefinitionBlock(
+diff --git a/src/mainboard/lenovo/t530/acpi/platform.asl b/src/mainboard/lenovo/t530/acpi/platform.asl
+index c4becafc2a..9dee90edc3 100644
+--- a/src/mainboard/lenovo/t530/acpi/platform.asl
++++ b/src/mainboard/lenovo/t530/acpi/platform.asl
+@@ -15,10 +15,6 @@ Method(_PTS,1)
+
+ Method(_WAK,1)
+ {
+- /* ME may not be up yet. */
+- \_TZ.MEB1 = 0
+- \_TZ.MEB2 = 0
+-
+ /* Wake the HKEY to init BT/WWAN */
+ \_SB.PCI0.LPCB.EC.HKEY.WAKE (Arg0)
+
+diff --git a/src/mainboard/lenovo/t530/dsdt.asl b/src/mainboard/lenovo/t530/dsdt.asl
+index 33b6f80b17..1134782675 100644
+--- a/src/mainboard/lenovo/t530/dsdt.asl
++++ b/src/mainboard/lenovo/t530/dsdt.asl
+@@ -3,7 +3,6 @@
+ #define THINKPAD_EC_GPE 17
+ #define BRIGHTNESS_UP \_SB.PCI0.GFX0.INCB
+ #define BRIGHTNESS_DOWN \_SB.PCI0.GFX0.DECB
+-#define EC_LENOVO_H8_ME_WORKAROUND 1
+
+ #include <acpi/acpi.h>
+ DefinitionBlock(
+diff --git a/src/mainboard/lenovo/x131e/acpi/platform.asl b/src/mainboard/lenovo/x131e/acpi/platform.asl
+index c4becafc2a..9dee90edc3 100644
+--- a/src/mainboard/lenovo/x131e/acpi/platform.asl
++++ b/src/mainboard/lenovo/x131e/acpi/platform.asl
+@@ -15,10 +15,6 @@ Method(_PTS,1)
+
+ Method(_WAK,1)
+ {
+- /* ME may not be up yet. */
+- \_TZ.MEB1 = 0
+- \_TZ.MEB2 = 0
+-
+ /* Wake the HKEY to init BT/WWAN */
+ \_SB.PCI0.LPCB.EC.HKEY.WAKE (Arg0)
+
+diff --git a/src/mainboard/lenovo/x131e/dsdt.asl b/src/mainboard/lenovo/x131e/dsdt.asl
+index 34391416f3..dc9878030e 100644
+--- a/src/mainboard/lenovo/x131e/dsdt.asl
++++ b/src/mainboard/lenovo/x131e/dsdt.asl
+@@ -3,7 +3,6 @@
+ #define THINKPAD_EC_GPE 22
+ #define BRIGHTNESS_UP \_SB.PCI0.GFX0.INCB
+ #define BRIGHTNESS_DOWN \_SB.PCI0.GFX0.DECB
+-#define EC_LENOVO_H8_ME_WORKAROUND 1
+
+ #include <acpi/acpi.h>
+ DefinitionBlock(
+diff --git a/src/mainboard/lenovo/x1_carbon_gen1/acpi/platform.asl b/src/mainboard/lenovo/x1_carbon_gen1/acpi/platform.asl
+index c4becafc2a..9dee90edc3 100644
+--- a/src/mainboard/lenovo/x1_carbon_gen1/acpi/platform.asl
++++ b/src/mainboard/lenovo/x1_carbon_gen1/acpi/platform.asl
+@@ -15,10 +15,6 @@ Method(_PTS,1)
+
+ Method(_WAK,1)
+ {
+- /* ME may not be up yet. */
+- \_TZ.MEB1 = 0
+- \_TZ.MEB2 = 0
+-
+ /* Wake the HKEY to init BT/WWAN */
+ \_SB.PCI0.LPCB.EC.HKEY.WAKE (Arg0)
+
+diff --git a/src/mainboard/lenovo/x1_carbon_gen1/dsdt.asl b/src/mainboard/lenovo/x1_carbon_gen1/dsdt.asl
+index 6838b5e9a6..18a47960f4 100644
+--- a/src/mainboard/lenovo/x1_carbon_gen1/dsdt.asl
++++ b/src/mainboard/lenovo/x1_carbon_gen1/dsdt.asl
+@@ -3,7 +3,6 @@
+ #define THINKPAD_EC_GPE 17
+ #define BRIGHTNESS_UP \_SB.PCI0.GFX0.INCB
+ #define BRIGHTNESS_DOWN \_SB.PCI0.GFX0.DECB
+-#define EC_LENOVO_H8_ME_WORKAROUND 1
+ #define EC_LENOVO_H8_ALT_FN_F2F3_LAYOUT 1
+
+ #include <acpi/acpi.h>
+diff --git a/src/mainboard/lenovo/x201/acpi/platform.asl b/src/mainboard/lenovo/x201/acpi/platform.asl
+index f17adafc88..a238248886 100644
+--- a/src/mainboard/lenovo/x201/acpi/platform.asl
++++ b/src/mainboard/lenovo/x201/acpi/platform.asl
+@@ -15,10 +15,6 @@ Method(_PTS,1)
+
+ Method(_WAK,1)
+ {
+- /* ME may not be up yet. */
+- \_TZ.MEB1 = 0
+- \_TZ.MEB2 = 0
+-
+ /* Wake the HKEY to init BT/WWAN */
+ \_SB.PCI0.LPCB.EC.HKEY.WAKE (Arg0)
+
+diff --git a/src/mainboard/lenovo/x201/dsdt.asl b/src/mainboard/lenovo/x201/dsdt.asl
+index 42a10e605c..e2571f60c7 100644
+--- a/src/mainboard/lenovo/x201/dsdt.asl
++++ b/src/mainboard/lenovo/x201/dsdt.asl
+@@ -3,7 +3,6 @@
+ #define THINKPAD_EC_GPE 17
+ #define BRIGHTNESS_UP \_SB.PCI0.GFX0.INCB
+ #define BRIGHTNESS_DOWN \_SB.PCI0.GFX0.DECB
+-#define EC_LENOVO_H8_ME_WORKAROUND 1
+
+ #include <acpi/acpi.h>
+ DefinitionBlock(
+diff --git a/src/mainboard/lenovo/x220/acpi/platform.asl b/src/mainboard/lenovo/x220/acpi/platform.asl
+index c4becafc2a..9dee90edc3 100644
+--- a/src/mainboard/lenovo/x220/acpi/platform.asl
++++ b/src/mainboard/lenovo/x220/acpi/platform.asl
+@@ -15,10 +15,6 @@ Method(_PTS,1)
+
+ Method(_WAK,1)
+ {
+- /* ME may not be up yet. */
+- \_TZ.MEB1 = 0
+- \_TZ.MEB2 = 0
+-
+ /* Wake the HKEY to init BT/WWAN */
+ \_SB.PCI0.LPCB.EC.HKEY.WAKE (Arg0)
+
+diff --git a/src/mainboard/lenovo/x220/dsdt.asl b/src/mainboard/lenovo/x220/dsdt.asl
+index 33b6f80b17..1134782675 100644
+--- a/src/mainboard/lenovo/x220/dsdt.asl
++++ b/src/mainboard/lenovo/x220/dsdt.asl
+@@ -3,7 +3,6 @@
+ #define THINKPAD_EC_GPE 17
+ #define BRIGHTNESS_UP \_SB.PCI0.GFX0.INCB
+ #define BRIGHTNESS_DOWN \_SB.PCI0.GFX0.DECB
+-#define EC_LENOVO_H8_ME_WORKAROUND 1
+
+ #include <acpi/acpi.h>
+ DefinitionBlock(
+diff --git a/src/mainboard/lenovo/x230/acpi/platform.asl b/src/mainboard/lenovo/x230/acpi/platform.asl
+index c4becafc2a..9dee90edc3 100644
+--- a/src/mainboard/lenovo/x230/acpi/platform.asl
++++ b/src/mainboard/lenovo/x230/acpi/platform.asl
+@@ -15,10 +15,6 @@ Method(_PTS,1)
+
+ Method(_WAK,1)
+ {
+- /* ME may not be up yet. */
+- \_TZ.MEB1 = 0
+- \_TZ.MEB2 = 0
+-
+ /* Wake the HKEY to init BT/WWAN */
+ \_SB.PCI0.LPCB.EC.HKEY.WAKE (Arg0)
+
+diff --git a/src/mainboard/lenovo/x230/dsdt.asl b/src/mainboard/lenovo/x230/dsdt.asl
+index 33b6f80b17..1134782675 100644
+--- a/src/mainboard/lenovo/x230/dsdt.asl
++++ b/src/mainboard/lenovo/x230/dsdt.asl
+@@ -3,7 +3,6 @@
+ #define THINKPAD_EC_GPE 17
+ #define BRIGHTNESS_UP \_SB.PCI0.GFX0.INCB
+ #define BRIGHTNESS_DOWN \_SB.PCI0.GFX0.DECB
+-#define EC_LENOVO_H8_ME_WORKAROUND 1
+
+ #include <acpi/acpi.h>
+ DefinitionBlock(
+--
+2.39.5
+
generated by cgit v1.2.1 (git 2.18.0) at 2025-07-14 12:57:21 +0000