Thermal trip point gets new flag in DT: irq-mode.
Trip point may have a new explicit flag which indicate
IRQ support when the temperature is met (so the thermal framework
deos not need to set polling for it).
It is useful for 'passive' cooling trip point,
which now will not register for polling the temperature.
Update documentation about irq-mode for trip points.
Cc: Zhang Rui <rui.zhang@xxxxxxxxx>
Cc: Eduardo Valentin <edubezval@xxxxxxxxx>
Cc: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
Cc: Rob Herring <robh+dt@xxxxxxxxxx>
Cc: Mark Rutland <mark.rutland@xxxxxxx>
Cc: devicetree@xxxxxxxxxxxxxxx
Signed-off-by: Lukasz Luba <l.luba@xxxxxxxxxxxxxxxxxxx>
---
Documentation/devicetree/bindings/thermal/thermal.txt | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/Documentation/devicetree/bindings/thermal/thermal.txt b/Documentation/devicetree/bindings/thermal/thermal.txt
index ca14ba9..bee21e3 100644
--- a/Documentation/devicetree/bindings/thermal/thermal.txt
+++ b/Documentation/devicetree/bindings/thermal/thermal.txt
@@ -90,6 +90,10 @@ Required properties:
"critical": Hardware not reliable.
Type: string
+- irq-mode: A flag indicating that trip rises irq, so there is no
+ Type: bool need of polling in thermal framework.
+ Size: one cell
+
* Cooling device maps
The cooling device maps node is a node to describe how cooling devices
@@ -256,16 +260,19 @@ thermal-zones {
temperature = <90000>; /* millicelsius */
hysteresis = <2000>; /* millicelsius */
type = "active";
+ irq-mode;
};
cpu_alert1: cpu-alert1 {
temperature = <100000>; /* millicelsius */
hysteresis = <2000>; /* millicelsius */
type = "passive";
+ irq-mode;
};
cpu_crit: cpu-crit {
temperature = <125000>; /* millicelsius */
hysteresis = <2000>; /* millicelsius */
type = "critical";
+ irq-mode;
};
};
--
2.7.4
