summaryrefslogtreecommitdiff
path: root/Documentation
diff options
context:
space:
mode:
authorWei Ni <wni@nvidia.com>2016-03-29 18:29:18 +0800
committerEduardo Valentin <edubezval@gmail.com>2016-05-17 07:28:29 -0700
commit4d44cd4ae96ed3744d26d9615ea103df5afc3ed7 (patch)
tree1623361d7cb6ccff4f21a4cd1feaed53ba3b68f3 /Documentation
parentc35095215a80b13af2f521e1ab1c727a5224e53b (diff)
of: add notes of critical trips for soctherm
The "critical" type trip in thermal zone can be set to SOC_THERM hardware, it can trigger shut down or reset event from hardware. Signed-off-by: Wei Ni <wni@nvidia.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/thermal/tegra-soctherm.txt12
1 files changed, 12 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/thermal/tegra-soctherm.txt b/Documentation/devicetree/bindings/thermal/tegra-soctherm.txt
index 6b68cd150405..351a7376baa8 100644
--- a/Documentation/devicetree/bindings/thermal/tegra-soctherm.txt
+++ b/Documentation/devicetree/bindings/thermal/tegra-soctherm.txt
@@ -26,6 +26,10 @@ Required properties :
of this property. See <dt-bindings/thermal/tegra124-soctherm.h> for a
list of valid values when referring to thermal sensors.
+Note:
+- the "critical" type trip points will be set to SOC_THERM hardware as the
+shut down temperature. Once the temperature of this thermal zone is higher
+than it, the system will be shutdown or reset by hardware.
Example :
@@ -51,5 +55,13 @@ Example: referring to thermal sensors :
thermal-sensors =
<&soctherm TEGRA124_SOCTHERM_SENSOR_CPU>;
+
+ trips {
+ cpu_shutdown_trip: shutdown-trip {
+ temperature = <102500>;
+ hysteresis = <1000>;
+ type = "critical";
+ };
+ };
};
};