diff options
| author | Zhang Rui <rui.zhang@intel.com> | 2017-01-16 10:55:45 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-08-22 07:48:37 +0200 |
| commit | 3f9ca472b2a7fc0e78b714fe1687c82206b20a8e (patch) | |
| tree | f9bd89a9ebb3942eb557193fe5fb96ef9b3ae7d5 | |
| parent | 39cd328e84cbafa28a068e9a82e05dfb8b5c7512 (diff) | |
ACPI: save NVS memory for Lenovo G50-45
commit cbc00c1310d34139a63946482b40a6b261a03fb9 upstream.
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 <soprwa@gmail.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
[ rjw: Drop unnecessary code ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/acpi/sleep.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index e3322adaaae0..84ddae30fc34 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -124,6 +124,12 @@ 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' @@ -318,6 +324,19 @@ static struct dmi_system_id acpisleep_dmi_table[] __initdata = { 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"), + }, + }, {}, }; |