From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755887AbdDJQze (ORCPT ); Mon, 10 Apr 2017 12:55:34 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:36918 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755766AbdDJQyH (ORCPT ); Mon, 10 Apr 2017 12:54:07 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Przemek , Zhang Rui , "Rafael J. Wysocki" , Sasha Levin Subject: [PATCH 4.10 091/110] ACPI: save NVS memory for Lenovo G50-45 Date: Mon, 10 Apr 2017 18:43:22 +0200 Message-Id: <20170410164206.279376619@linuxfoundation.org> X-Mailer: git-send-email 2.12.2 In-Reply-To: <20170410164201.247583164@linuxfoundation.org> References: <20170410164201.247583164@linuxfoundation.org> User-Agent: quilt/0.65 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 4.10-stable review patch. If anyone has any objections, please let me know. ------------------ From: Zhang Rui [ Upstream commit cbc00c1310d34139a63946482b40a6b261a03fb9 ] In commit 821d6f0359b0 (ACPI / sleep: Do not save NVS for new machines to accelerate S3), to optimize S3 suspend/resume speed, code is introduced to ignore NVS memory saving during S3 for all the platforms later than 2012. But, Lenovo G50-45, a platform released in 2015, still needs NVS memory saving during S3. A quirk is introduced for this platform. Link: https://bugzilla.kernel.org/show_bug.cgi?id=189431 Tested-by: Przemek Signed-off-by: Zhang Rui [ rjw: Drop unnecessary code ] Signed-off-by: Rafael J. Wysocki Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- drivers/acpi/sleep.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -130,6 +130,12 @@ void __init acpi_nvs_nosave_s3(void) nvs_nosave_s3 = true; } +static int __init init_nvs_save_s3(const struct dmi_system_id *d) +{ + nvs_nosave_s3 = false; + return 0; +} + /* * ACPI 1.0 wants us to execute _PTS before suspending devices, so we allow the * user to request that behavior by using the 'acpi_old_suspend_ordering' @@ -324,6 +330,19 @@ static struct dmi_system_id acpisleep_dm DMI_MATCH(DMI_PRODUCT_NAME, "K54HR"), }, }, + /* + * https://bugzilla.kernel.org/show_bug.cgi?id=189431 + * Lenovo G50-45 is a platform later than 2012, but needs nvs memory + * saving during S3. + */ + { + .callback = init_nvs_save_s3, + .ident = "Lenovo G50-45", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_NAME, "80E3"), + }, + }, {}, };