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Message-Id: <20180618081211.384348511@linuxfoundation.org>
Date: Mon, 18 Jun 2018 10:12:27 +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, Chen Yu <yu.c.chen@...el.com>,
"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
Sasha Levin <alexander.levin@...rosoft.com>
Subject: [PATCH 4.14 051/189] ACPI / PM: Blacklist Low Power S0 Idle _DSM for ThinkPad X1 Tablet(2016)
4.14-stable review patch. If anyone has any objections, please let me know.
------------------
From: Chen Yu <yu.c.chen@...el.com>
[ Upstream commit 855c1c2fce8bdbd796cba1d1456ca8f0e876c2f1 ]
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).
Link: https://bugzilla.kernel.org/show_bug.cgi?id=199057
Reported-and-tested-by: Robin Lee <robinlee.sysu@...il.com>
Signed-off-by: Chen Yu <yu.c.chen@...el.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
drivers/acpi/sleep.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -364,6 +364,19 @@ static const struct dmi_system_id acpisl
DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"),
},
},
+ /*
+ * ThinkPad X1 Tablet(2016) cannot do suspend-to-idle using
+ * the Low Power S0 Idle firmware interface (see
+ * https://bugzilla.kernel.org/show_bug.cgi?id=199057).
+ */
+ {
+ .callback = init_no_lps0,
+ .ident = "ThinkPad X1 Tablet(2016)",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "20GGA00L00"),
+ },
+ },
{},
};
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