5 files changed, 185 insertions, 0 deletions
diff --git a/dts/Bindings/input/gpio-keys.txt b/dts/Bindings/input/gpio-keys.txt
new file mode 100644
index 0000000000..5c2c02140a
--- /dev/null
+++ b/dts/Bindings/input/gpio-keys.txt
@@ -0,0 +1,36 @@
+Device-Tree bindings for input/gpio_keys.c keyboard driver
+
+Required properties:
+	- compatible = "gpio-keys";
+
+Optional properties:
+	- autorepeat: Boolean, Enable auto repeat feature of Linux input
+	  subsystem.
+
+Each button (key) is represented as a sub-node of "gpio-keys":
+Subnode properties:
+
+	- gpios: OF device-tree gpio specification.
+	- label: Descriptive name of the key.
+	- linux,code: Keycode to emit.
+
+Optional subnode-properties:
+	- linux,input-type: Specify event type this button/key generates.
+	  If not specified defaults to <1> == EV_KEY.
+	- debounce-interval: Debouncing interval time in milliseconds.
+	  If not specified defaults to 5.
+	- gpio-key,wakeup: Boolean, button can wake-up the system.
+
+Example nodes:
+
+	gpio_keys {
+			compatible = "gpio-keys";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			autorepeat;
+			button@21 {
+				label = "GPIO Key UP";
+				linux,code = <103>;
+				gpios = <&gpio1 0 1>;
+			};
+			...
diff --git a/dts/Bindings/input/st-keyscan.txt b/dts/Bindings/input/st-keyscan.txt
new file mode 100644
index 0000000000..51eb428e5c
--- /dev/null
+++ b/dts/Bindings/input/st-keyscan.txt
@@ -0,0 +1,60 @@
+* ST Keyscan controller Device Tree bindings
+
+The ST keyscan controller Device Tree binding is based on the
+matrix-keymap.
+
+Required properties:
+- compatible: "st,sti-keyscan"
+
+- reg: Register base address and size of st-keyscan controller.
+
+- interrupts: Interrupt number for the st-keyscan controller.
+
+- clocks: Must contain one entry, for the module clock.
+  See ../clocks/clock-bindings.txt for details.
+
+- pinctrl: Should specify pin control groups used for this controller.
+  See ../pinctrl/pinctrl-bindings.txt for details.
+
+- linux,keymap: The keymap for keys as described in the binding document
+  devicetree/bindings/input/matrix-keymap.txt.
+
+- keypad,num-rows: Number of row lines connected to the keypad controller.
+
+- keypad,num-columns: Number of column lines connected to the keypad
+  controller.
+
+Optional property:
+- st,debounce_us: Debouncing interval time in microseconds
+
+Example:
+
+keyscan: keyscan@fe4b0000 {
+	compatible = "st,sti-keyscan";
+	reg = <0xfe4b0000 0x2000>;
+	interrupts = <GIC_SPI 212 IRQ_TYPE_NONE>;
+	clocks	= <&CLK_SYSIN>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_keyscan>;
+
+	keypad,num-rows = <4>;
+	keypad,num-columns = <4>;
+	st,debounce_us = <5000>;
+
+	linux,keymap = < MATRIX_KEY(0x00, 0x00, KEY_F13)
+			 MATRIX_KEY(0x00, 0x01, KEY_F9)
+			 MATRIX_KEY(0x00, 0x02, KEY_F5)
+			 MATRIX_KEY(0x00, 0x03, KEY_F1)
+			 MATRIX_KEY(0x01, 0x00, KEY_F14)
+			 MATRIX_KEY(0x01, 0x01, KEY_F10)
+			 MATRIX_KEY(0x01, 0x02, KEY_F6)
+			 MATRIX_KEY(0x01, 0x03, KEY_F2)
+			 MATRIX_KEY(0x02, 0x00, KEY_F15)
+			 MATRIX_KEY(0x02, 0x01, KEY_F11)
+			 MATRIX_KEY(0x02, 0x02, KEY_F7)
+			 MATRIX_KEY(0x02, 0x03, KEY_F3)
+			 MATRIX_KEY(0x03, 0x00, KEY_F16)
+			 MATRIX_KEY(0x03, 0x01, KEY_F12)
+			 MATRIX_KEY(0x03, 0x02, KEY_F8)
+			 MATRIX_KEY(0x03, 0x03, KEY_F4) >;
+	};
diff --git a/dts/Bindings/input/touchscreen/sun4i.txt b/dts/Bindings/input/touchscreen/sun4i.txt
new file mode 100644
index 0000000000..aef57791f4
--- /dev/null
+++ b/dts/Bindings/input/touchscreen/sun4i.txt
@@ -0,0 +1,20 @@
+sun4i resistive touchscreen controller
+--------------------------------------
+
+Required properties:
+ - compatible: "allwinner,sun4i-a10-ts"
+ - 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;
+	};
diff --git a/dts/Bindings/input/touchscreen/touchscreen.txt b/dts/Bindings/input/touchscreen/touchscreen.txt
new file mode 100644
index 0000000000..d8e06163c5
--- /dev/null
+++ b/dts/Bindings/input/touchscreen/touchscreen.txt
@@ -0,0 +1,27 @@
+General Touchscreen Properties:
+
+Optional properties for Touchscreens:
+ - touchscreen-size-x		: horizontal resolution of touchscreen
+				  (in pixels)
+ - touchscreen-size-y		: vertical resolution of touchscreen
+				  (in pixels)
+ - touchscreen-max-pressure	: maximum reported pressure (arbitrary range
+				  dependent on the controller)
+ - touchscreen-fuzz-x		: horizontal noise value of the absolute input
+				  device (in pixels)
+ - touchscreen-fuzz-y		: vertical noise value of the absolute input
+				  device (in pixels)
+ - touchscreen-fuzz-pressure	: pressure noise value of the absolute input
+				  device (arbitrary range dependent on the
+				  controller)
+ - touchscreen-inverted-x	: X axis is inverted (boolean)
+ - touchscreen-inverted-y	: Y axis is inverted (boolean)
+
+Deprecated properties for Touchscreens:
+ - x-size			: deprecated name for touchscreen-size-x
+ - y-size			: deprecated name for touchscreen-size-y
+ - moving-threshold		: deprecated name for a combination of
+				  touchscreen-fuzz-x and touchscreen-fuzz-y
+ - contact-threshold		: deprecated name for touchscreen-fuzz-pressure
+ - x-invert			: deprecated name for touchscreen-inverted-x
+ - y-invert			: deprecated name for touchscreen-inverted-y
diff --git a/dts/Bindings/input/touchscreen/tsc2005.txt b/dts/Bindings/input/touchscreen/tsc2005.txt
new file mode 100644
index 0000000000..4b641c7bf1
--- /dev/null
+++ b/dts/Bindings/input/touchscreen/tsc2005.txt
@@ -0,0 +1,42 @@
+* Texas Instruments tsc2005 touchscreen controller
+
+Required properties:
+ - compatible		      : "ti,tsc2005"
+ - reg			      : SPI device address
+ - spi-max-frequency	      : Maximal SPI speed
+ - interrupts		      : IRQ specifier
+ - reset-gpios		      : GPIO specifier
+ - vio-supply                 : Regulator specifier
+
+Optional properties:
+ - ti,x-plate-ohms	      : integer, resistance of the touchscreen's X plates
+				in ohm (defaults to 280)
+ - ti,esd-recovery-timeout-ms : integer, if the touchscreen does not respond after
+				the configured time (in milli seconds), the driver
+				will reset it. This is disabled by default.
+ - properties defined in touchscreen.txt
+
+Example:
+
+&mcspi1 {
+	tsc2005@0 {
+		compatible = "ti,tsc2005";
+		spi-max-frequency = <6000000>;
+		reg = <0>;
+
+		vio-supply = <&vio>;
+
+		reset-gpios = <&gpio4 8 GPIO_ACTIVE_HIGH>; /* 104 */
+		interrupts-extended = <&gpio4 4 IRQ_TYPE_EDGE_RISING>; /* 100 */
+
+		touchscreen-fuzz-x = <4>;
+		touchscreen-fuzz-y = <7>;
+		touchscreen-fuzz-pressure = <2>;
+		touchscreen-max-x = <4096>;
+		touchscreen-max-y = <4096>;
+		touchscreen-max-pressure = <2048>;
+
+		ti,x-plate-ohms = <280>;
+		ti,esd-recovery-timeout-ms = <8000>;
+	};
+}