2022-06-22 07:49:16

by Manyi Li

Subject: [PATCH] ACPI: save NVS memory for Lenovo G40-45

[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 <[email protected]>
---
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
--
2.20.1

2022-06-29 18:04:04

by Rafael J. Wysocki

Subject: Re: [PATCH] ACPI: save NVS memory for Lenovo G40-45

On Wed, Jun 22, 2022 at 9:43 AM Manyi Li <[email protected]> wrote:
>
> [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 <[email protected]>
> ---
> 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
> --

Applied as 5.20 material, thanks!