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Date: Mon, 15 Aug 2022 19:56:22 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Manyi Li <limanyi@...ontech.com>, "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>, Sasha Levin <sashal@...nel.org> Subject: [PATCH 5.15 138/779] ACPI: PM: save NVS memory for Lenovo G40-45 From: Manyi Li <limanyi@...ontech.com> [ Upstream commit 4b7ef7b05afcde44142225c184bf43a0cd9e2178 ] [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@...ontech.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com> Signed-off-by: Sasha Levin <sashal@...nel.org> --- drivers/acpi/sleep.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index 07515139141e..d7194047d256 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -361,6 +361,14 @@ 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 -- 2.35.1
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