From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754093AbeDJPEt (ORCPT ); Tue, 10 Apr 2018 11:04:49 -0400 Received: from mga09.intel.com ([134.134.136.24]:38327 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753478AbeDJPEr (ORCPT ); Tue, 10 Apr 2018 11:04:47 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.48,432,1517904000"; d="scan'208";a="32278896" From: Yu Chen To: "Rafael J. Wysocki" , Len Brown Cc: linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, Robin Lee , Hans de Goede , Chen Yu Subject: [PATCH] ACPI / PM: Blacklist Low Power S0 Idle _DSM for ThinkPad X1 Tablet(2016) Date: Tue, 10 Apr 2018 23:07:51 +0800 Message-Id: <20180410150751.31580-1-yu.c.chen@intel.com> X-Mailer: git-send-email 2.13.6 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Chen Yu ThinkPad X1 Tablet(2016) is reported to have issues with the Low Power S0 Idle _DSM interface and since this machine model generally can do ACPI S3 just fine, and user would like to use S3 as default sleep model, add a blacklist entry to disable that interface for ThinkPad X1 Tablet(2016). Reported-and-tested-by: Robin Lee Signed-off-by: Chen Yu --- drivers/acpi/sleep.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index 46cde0912762..465f33aa0bd8 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -364,6 +364,19 @@ static const struct dmi_system_id acpisleep_dmi_table[] __initconst = { DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"), }, }, + /* + * https://bugzilla.kernel.org/show_bug.cgi?id=199057 + * ThinkPad X1 Tablet(2016) cannot do suspend-to-idle using the Low Power + * S0 Idle firmware interface. + */ + { + .callback = init_no_lps0, + .ident = "ThinkPad X1 Tablet(2016)", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_NAME, "20GGA00L00"), + }, + }, {}, }; -- 2.13.6