| From foo@baz Sun Jun 17 12:07:33 CEST 2018 |
| From: Chen Yu <yu.c.chen@intel.com> |
| Date: Tue, 10 Apr 2018 23:07:51 +0800 |
| Subject: ACPI / PM: Blacklist Low Power S0 Idle _DSM for ThinkPad X1 Tablet(2016) |
| |
| From: Chen Yu <yu.c.chen@intel.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@gmail.com> |
| Signed-off-by: Chen Yu <yu.c.chen@intel.com> |
| Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
| Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> |
| Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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"), |
| + }, |
| + }, |
| {}, |
| }; |
| |