Input: mms114 - add device tree bindings

Add device tree bindings for mms114 touchscreen.

[Dmitry Torokhov: added #ifdef CONFIG_OF guards]

Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

1 files changed, 34 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/input/touchscreen/mms114.txt b/Documentation/devicetree/bindings/input/touchscreen/mms114.txt
new file mode 100644
index 000000000000..89d4c56c5671
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/mms114.txt
@@ -0,0 +1,34 @@
+* MELFAS MMS114 touchscreen controller
+
+Required properties:
+- compatible: must be "melfas,mms114"
+- reg: I2C address of the chip
+- interrupts: interrupt to which the chip is connected
+- x-size: horizontal resolution of touchscreen
+- y-size: vertical resolution of touchscreen
+
+Optional properties:
+- contact-threshold:
+- moving-threshold:
+- x-invert: invert X axis
+- y-invert: invert Y axis
+
+Example:
+
+        i2c@00000000 {
+                /* ... */
+
+                touchscreen@48 {
+                        compatible = "melfas,mms114";
+                        reg = <0x48>;
+                        interrupts = <39 0>;
+                        x-size = <720>;
+                        y-size = <1280>;
+                        contact-threshold = <10>;
+                        moving-threshold = <10>;
+                        x-invert;
+                        y-invert;
+                };
+
+                /* ... */
+        };