ACPI: introduce ACPI int340x thermal scan handler
Newer laptops and tablets that use ACPI may have thermal sensors and
other devices with thermal control capabilities outside the core CPU/SOC,
for thermal safety reasons.
They are exposed for the OS to use via
1) INT3400 ACPI device object as the master.
2) INT3401 ~ INT340B ACPI device objects as the slaves.
This patch introduces a scan handler to enumerate the INT3400
ACPI device object to platform bus, and prevent its slaves
from being enumerated before the controller driver being probed.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig
index 693208e..2ff7416 100644
--- a/drivers/thermal/Kconfig
+++ b/drivers/thermal/Kconfig
@@ -234,6 +234,23 @@
notification methods.The other trip is a critical trip point, which
was set by the driver based on the TJ MAX temperature.
+config INT340X_THERMAL
+ bool
+ depends on X86 && ACPI
+ help
+ Newer laptops and tablets that use ACPI may have thermal sensors and
+ other devices with thermal control capabilities outside the core
+ CPU/SOC, for thermal safety reasons.
+ They are exposed for the OS to use via the INT3400 ACPI device object
+ as the master, and INT3401~INT340B ACPI device objects as the slaves.
+ Enable this to expose the temperature information and cooling ability
+ from these objects to userspace via the normal thermal framework.
+ This means that a wide range of applications and GUI widgets can show
+ the information to the user or use this information for making
+ decisions. For example, the Intel Thermal Daemon can use this
+ information to allow the user to select his laptop to run without
+ turning on the fans.
+
menu "Texas Instruments thermal drivers"
source "drivers/thermal/ti-soc-thermal/Kconfig"
endmenu