Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / Documentation / devicetree / bindings / input / touchscreen / sun4i.txt

diff --git a/kernel/Documentation/devicetree/bindings/input/touchscreen/sun4i.txt b/kernel/Documentation/devicetree/bindings/input/touchscreen/sun4i.txt
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+++ b/kernel/Documentation/devicetree/bindings/input/touchscreen/sun4i.txt
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+sun4i resistive touchscreen controller
+--------------------------------------
+
+Required properties:
+ - compatible: "allwinner,sun4i-a10-ts", "allwinner,sun5i-a13-ts" or
+   "allwinner,sun6i-a31-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 attached to the controller
+ - allwinner,tp-sensitive-adjust : integer (4 bits)
+                                  adjust sensitivity of pen down detection
+                                  between 0 (least sensitive) and 15
+                                  (defaults to 15)
+ - allwinner,filter-type        : integer (2 bits)
+                                  select median and averaging filter
+                                  samples used for median / averaging filter
+                                  0: 4/2
+                                  1: 5/3
+                                  2: 8/4
+                                  3: 16/8
+                                  (defaults to 1)
+
+Example:
+
+       rtp: rtp@01c25000 {
+               compatible = "allwinner,sun4i-a10-ts";
+               reg = <0x01c25000 0x100>;
+               interrupts = <29>;
+               allwinner,ts-attached;
+               #thermal-sensor-cells = <0>;
+               /* sensitive/noisy touch panel */
+               allwinner,tp-sensitive-adjust = <0>;
+               allwinner,filter-type = <3>;
+       };