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authorChen-Yu Tsai <wens@csie.org>2015-01-15 10:26:32 -0800
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2015-01-18 00:10:27 -0800
commit223697107949f90917cb3ea583c551fc18e6afb6 (patch)
treef4ce46876a12d906392fa7fb945bd288c95110da /Documentation/devicetree
parent0c49cd295d42d0032af11d55e2140dbec11dc8d0 (diff)
downloadop-kernel-dev-223697107949f90917cb3ea583c551fc18e6afb6.zip
op-kernel-dev-223697107949f90917cb3ea583c551fc18e6afb6.tar.gz
Input: sun4i-ts - add thermal zone sensor support
The touchscreen controller has a temperature sensor embedded in the SoC, which already has hwmon support in the driver. Add DT thermal zone support so we can use it with cpufreq for thermal throttling. This also adds a comment stating that we do not know the actual formula for calculating the temperature. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Acked-by: Eduardo Valentin <edubezval@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'Documentation/devicetree')
-rw-r--r--Documentation/devicetree/bindings/input/touchscreen/sun4i.txt2
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/input/touchscreen/sun4i.txt b/Documentation/devicetree/bindings/input/touchscreen/sun4i.txt
index aef5779..a8405ba 100644
--- a/Documentation/devicetree/bindings/input/touchscreen/sun4i.txt
+++ b/Documentation/devicetree/bindings/input/touchscreen/sun4i.txt
@@ -5,6 +5,7 @@ Required properties:
- compatible: "allwinner,sun4i-a10-ts"
- reg: mmio address range of the chip
- interrupts: interrupt to which the chip is connected
+ - #thermal-sensor-cells: shall be 0
Optional properties:
- allwinner,ts-attached: boolean indicating that an actual touchscreen is
@@ -17,4 +18,5 @@ Example:
reg = <0x01c25000 0x100>;
interrupts = <29>;
allwinner,ts-attached;
+ #thermal-sensor-cells = <0>;
};
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