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[05/11] Doc: DT: thermal: new irq-mode for trip point

Message ID 20181016145646eucas1p1bd4607c80258df10777ed111cf889fbc~eHqKU_F8K2225422254eucas1p1r@eucas1p1.samsung.com (mailing list archive)
State Superseded, archived
Delegated to: Zhang Rui
Headers show
Series thermal: add new flag irq-mode for trip point | expand

Commit Message

Lukasz Luba Oct. 16, 2018, 2:56 p.m. UTC
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 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@intel.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: devicetree@vger.kernel.org
Signed-off-by: Lukasz Luba <l.luba@partner.samsung.com>
---
 Documentation/devicetree/bindings/thermal/thermal.txt | 7 +++++++
 1 file changed, 7 insertions(+)
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Patch

diff --git a/Documentation/devicetree/bindings/thermal/thermal.txt b/Documentation/devicetree/bindings/thermal/thermal.txt
index eb7ee91..c98a355 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;
 			};
 		};