From 4b7ef7b05afcde44142225c184bf43a0cd9e2178 Mon Sep 17 00:00:00 2001
From: Manyi Li <limanyi@uniontech.com>
Date: Wed, 22 Jun 2022 15:42:48 +0800
Subject: [PATCH] ACPI: PM: save NVS memory for Lenovo G40-45
Git-commit: 4b7ef7b05afcde44142225c184bf43a0cd9e2178
Patch-mainline: v6.0-rc1
References: git-fixes
[821d6f0359b0614792ab8e2fb93b503e25a65079] is to make machines
produced from 2012 to now not saving NVS region to accelerate S3.
But, Lenovo G40-45, a platform released in 2015, still needs NVS memory
saving during S3. A quirk is introduced for this platform.
Signed-off-by: Manyi Li <limanyi@uniontech.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/acpi/sleep.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index 04ea1569df78..974746e6e59d 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -360,6 +360,14 @@ static const struct dmi_system_id acpisleep_dmi_table[] __initconst = {
DMI_MATCH(DMI_PRODUCT_NAME, "80E3"),
},
},
+ {
+ .callback = init_nvs_save_s3,
+ .ident = "Lenovo G40-45",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "80E1"),
+ },
+ },
/*
* ThinkPad X1 Tablet(2016) cannot do suspend-to-idle using
* the Low Power S0 Idle firmware interface (see
--
2.35.3