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-rw-r--r--config/coreboot/default/patches/0037-mb-hp-elitebook_820_g2-do-not-set-EC-SLPT-on-S5.patch34
1 files changed, 34 insertions, 0 deletions
diff --git a/config/coreboot/default/patches/0037-mb-hp-elitebook_820_g2-do-not-set-EC-SLPT-on-S5.patch b/config/coreboot/default/patches/0037-mb-hp-elitebook_820_g2-do-not-set-EC-SLPT-on-S5.patch
new file mode 100644
index 00000000..bc584ffe
--- /dev/null
+++ b/config/coreboot/default/patches/0037-mb-hp-elitebook_820_g2-do-not-set-EC-SLPT-on-S5.patch
@@ -0,0 +1,34 @@
+From 6202669b8e8f50837448e2d4c482671abf72f648 Mon Sep 17 00:00:00 2001
+From: Iru Cai <mytbk920423@gmail.com>
+Date: Sun, 5 Nov 2023 17:12:43 +0800
+Subject: [PATCH 1/1] mb/hp/elitebook_820_g2: do not set EC SLPT on S5
+
+Setting EC SLPT bit in S5 will make HP EliteBook 820 G2
+fail to reboot under Linux 6.1 and later kernel versions.
+
+Change-Id: I48f5a35cd78db3b32d9f76cb8e266c738da34e7c
+Signed-off-by: Iru Cai <mytbk920423@gmail.com>
+Reviewed-on: https://review.coreboot.org/c/coreboot/+/78907
+Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
+Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de>
+---
+ src/mainboard/hp/elitebook_820_g2/acpi/platform.asl | 5 ++++-
+ 1 file changed, 4 insertions(+), 1 deletion(-)
+
+diff --git a/src/mainboard/hp/elitebook_820_g2/acpi/platform.asl b/src/mainboard/hp/elitebook_820_g2/acpi/platform.asl
+index 8023ae826c..d17f575c40 100644
+--- a/src/mainboard/hp/elitebook_820_g2/acpi/platform.asl
++++ b/src/mainboard/hp/elitebook_820_g2/acpi/platform.asl
+@@ -10,5 +10,8 @@ Method(_WAK,1)
+
+ Method(_PTS,1)
+ {
+- \_SB.PCI0.LPCB.EC0.SLPT = Arg0
++ If (Arg0 != 5)
++ {
++ \_SB.PCI0.LPCB.EC0.SLPT = Arg0
++ }
+ }
+--
+2.39.2
+