4.14-stable review patch. If anyone has any objections, please let me know. ------------------ From: Chen Yu <yu.c.chen@xxxxxxxxx> [ 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@xxxxxxxxx> Signed-off-by: Chen Yu <yu.c.chen@xxxxxxxxx> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx> Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- 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"), + }, + }, {}, };
