HP EliteBook 840 G8 reboots on s2idle resume, and HP EliteBook 845 G8
wakes up immediately on s2idle. Both are caused by the XMM7360 WWAN PCI
card.
There's a WWAN specific method to really turn off the WWAN via EC:
Method (_PTS, 1, NotSerialized) // _PTS: Prepare To Sleep
{
...
If (CondRefOf (\_SB.PCI0.GP12.PTS))
{
\_SB.PCI0.GP12.PTS (Arg0)
}
...
}
Scope (_SB.PCI0.GP12)
{
...
Method (PTS, 1, Serialized)
{
If (^^LPCB.EC0.ECRG)
{
If ((PDID == 0xFFFF))
{
Return (Zero)
}
POFF ()
SGIO (WWBR, One)
Sleep (0x1E)
Acquire (^^LPCB.EC0.ECMX, 0xFFFF)
^^LPCB.EC0.WWP = One
Release (^^LPCB.EC0.ECMX)
Sleep (0x01F4)
}
Return (Zero)
}
...
}
So let's also invok _PTS for s2idle.
Signed-off-by: Kai-Heng Feng <[email protected]>
---
drivers/acpi/sleep.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index 09fd13757b65..7e84b4b09919 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -698,6 +698,7 @@ int acpi_s2idle_prepare(void)
}
acpi_enable_wakeup_devices(ACPI_STATE_S0);
+ acpi_enter_sleep_state_prep(ACPI_STATE_S0);
/* Change the configuration of GPEs to avoid spurious wakeup. */
acpi_enable_all_wakeup_gpes();
--
2.30.2
