leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

ACPI / PM: Blacklist Low Power S0 Idle _DSM for Dell XPS13 9360

Browse Source 
At least one Dell XPS13 9360 is reported to have serious issues with
the Low Power S0 Idle _DSM interface and since this machine model
generally can do ACPI S3 just fine, add a blacklist entry to disable
that interface for Dell XPS13 9360.

Fixes: 8110dd281e (ACPI / sleep: EC-based wakeup from suspend-to-idle on recent systems)
Link: https://bugzilla.kernel.org/show_bug.cgi?id=196907
Reported-by: Paul Menzel <pmenzel@molgen.mpg.de>
Tested-by: Paul Menzel <pmenzel@molgen.mpg.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: 4.13+ <stable@vger.kernel.org> # 4.13+
This commit is contained in:
Rafael J. Wysocki 2017-11-06 23:56:57 +01:00
parent 39dae59d66
commit 71630b7a83
1 changed files with 28 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

28
drivers/acpi/sleep.c
View File

@ -160,6 +160,14 @@ static int __init init_nvs_nosave(const struct dmi_system_id *d)
return 0;
}
static bool acpi_sleep_no_lps0;
static int __init init_no_lps0(const struct dmi_system_id *d)
{
acpi_sleep_no_lps0 = true;
return 0;
}
static const struct dmi_system_id acpisleep_dmi_table[] __initconst = {
{
.callback = init_old_suspend_ordering,
@ -343,6 +351,19 @@ static const struct dmi_system_id acpisleep_dmi_table[] __initconst = {
DMI_MATCH(DMI_PRODUCT_NAME, "80E3"),
},
},
/*
* https://bugzilla.kernel.org/show_bug.cgi?id=196907
* Some Dell XPS13 9360 cannot do suspend-to-idle using the Low Power
* S0 Idle firmware interface.
*/
{
.callback = init_no_lps0,
.ident = "Dell XPS13 9360",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"),
},
},
{},
};
@ -485,6 +506,7 @@ static void acpi_pm_end(void)
}
#else /* !CONFIG_ACPI_SLEEP */
#define acpi_target_sleep_state ACPI_STATE_S0
#define acpi_sleep_no_lps0 (false)
static inline void acpi_sleep_dmi_check(void) {}
#endif /* CONFIG_ACPI_SLEEP */
@ -863,6 +885,12 @@ static int lps0_device_attach(struct acpi_device *adev,
if (lps0_device_handle)
return 0;
if (acpi_sleep_no_lps0) {
acpi_handle_info(adev->handle,
"Low Power S0 Idle interface disabled\n");
return 0;
}
if (!(acpi_gbl_FADT.flags & ACPI_FADT_LOW_POWER_S0))
return 0;