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| author | Hans de Goede <hdegoede@redhat.com> | 2014-05-14 20:22:09 +0200 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2014-05-15 01:40:06 +0200 |
| commit | f09f98d3240b7ed2dd84ef6d84ff86df9d61e0f5 (patch) | |
| tree | 868ecf353dd23426271b88dc39a16c29f1d4d2a2 /Documentation | |
| parent | Input: add driver for Allwinner sunxi SoC's rtp controller (diff) | |
| download | linux-f09f98d3240b7ed2dd84ef6d84ff86df9d61e0f5.tar.xz linux-f09f98d3240b7ed2dd84ef6d84ff86df9d61e0f5.zip | |
Input: sun4i-ts - add support for temperature sensor
The sun4i resisitive touchscreen controller also comes with a built-in
temperature sensor. This commit adds support for it.
This commit also introduces a new "ts-attached" device-tree property,
when this is not set, the input part of the driver won't register. This way
the internal temperature sensor can be used to measure the SoC temperature
independent of there actually being a touchscreen attached to the controller.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/input/touchscreen/sun4i.txt | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/input/touchscreen/sun4i.txt b/Documentation/devicetree/bindings/input/touchscreen/sun4i.txt index 881aea713fc3..aef57791f40b 100644 --- a/Documentation/devicetree/bindings/input/touchscreen/sun4i.txt +++ b/Documentation/devicetree/bindings/input/touchscreen/sun4i.txt @@ -6,10 +6,15 @@ Required properties: - reg: mmio address range of the chip - interrupts: interrupt to which the chip is connected +Optional properties: + - allwinner,ts-attached: boolean indicating that an actual touchscreen is + attached to the controller + Example: rtp: rtp@01c25000 { compatible = "allwinner,sun4i-a10-ts"; reg = <0x01c25000 0x100>; interrupts = <29>; + allwinner,ts-attached; }; |