linux-kernel - Re: [PATCH] ACPI: save NVS memory for Lenovo G70-35

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Message-ID: <CAJZ5v0j_+SbSwiyT2eq2R_7GE2YOvDuhShEqfdtr--XVNCdhNA@mail.gmail.com>
Date: Wed, 11 Feb 2026 21:19:10 +0100
From: "Rafael J. Wysocki" <rafael@...nel.org>
To: Piotr Mazek <pmazek@...look.com>
Cc: "Rafael J . Wysocki" <rafael@...nel.org>, Len Brown <lenb@...nel.org>, linux-acpi@...r.kernel.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ACPI: save NVS memory for Lenovo G70-35

On Thu, Feb 5, 2026 at 11:06 PM Piotr Mazek <pmazek@...look.com> wrote:
>
> From: Piotr <pmazek@...look.com>
>
> [821d6f0359b0614792ab8e2fb93b503e25a65079] prevented machines
> produced later than 2012 from saving NVS region to accelerate S3.
>
> Despite being made after 2012, Lenovo G70-35 still needs
> NVS memory saving during S3. A quirk is introduced for this platform.
>
> Signed-off-by: Piotr Mazek <pmazek@...look.com>
> ---
>  drivers/acpi/sleep.c | 8 ++++++++
>  1 file changed, 8 insertions(+)
>
> diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
> index 66ec81e306d4..132a9df98471 100644
> --- a/drivers/acpi/sleep.c
> +++ b/drivers/acpi/sleep.c
> @@ -386,6 +386,14 @@ static const struct dmi_system_id acpisleep_dmi_table[] __initconst = {
>                 DMI_MATCH(DMI_PRODUCT_NAME, "80E1"),
>                 },
>         },
> +       {
> +       .callback = init_nvs_save_s3,
> +       .ident = "Lenovo G70-35",
> +       .matches = {
> +               DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
> +               DMI_MATCH(DMI_PRODUCT_NAME, "80Q5"),
> +               },
> +       },
>         /*
>          * ThinkPad X1 Tablet(2016) cannot do suspend-to-idle using
>          * the Low Power S0 Idle firmware interface (see
> --

Applied as 7.0-rc material, thanks!