Adding upstream version 5.10.209.upstream/5.10.209upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

45 files changed, 2108 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/input/touchscreen/ad7879.txt b/Documentation/devicetree/bindings/input/touchscreen/ad7879.txt
new file mode 100644
index 000000000..afa38dc06
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/ad7879.txt
@@ -0,0 +1,71 @@
+* Analog Devices AD7879(-1)/AD7889(-1) touchscreen interface (SPI/I2C)
+
+Required properties:
+- compatible			: for SPI slave, use "adi,ad7879"
+				  for I2C slave, use "adi,ad7879-1"
+- reg				: SPI chipselect/I2C slave address
+				  See spi-bus.txt for more SPI slave properties
+- interrupts			: touch controller interrupt
+- touchscreen-max-pressure	: maximum reported pressure
+- adi,resistance-plate-x	: total resistance of X-plate (for pressure
+				  calculation)
+Optional properties:
+- touchscreen-swapped-x-y	: X and Y axis are swapped (boolean)
+- adi,first-conversion-delay	: 0-12: In 128us steps (starting with 128us)
+				  13  : 2.560ms
+				  14  : 3.584ms
+				  15  : 4.096ms
+				  This property has to be a '/bits/ 8' value
+- adi,acquisition-time		: 0: 2us
+				  1: 4us
+				  2: 8us
+				  3: 16us
+				  This property has to be a '/bits/ 8' value
+- adi,median-filter-size	: 0: disabled
+				  1: 4 measurements
+				  2: 8 measurements
+				  3: 16 measurements
+				  This property has to be a '/bits/ 8' value
+- adi,averaging			: 0: 2 middle values (1 if median disabled)
+				  1: 4 middle values
+				  2: 8 middle values
+				  3: 16 values
+				  This property has to be a '/bits/ 8' value
+- adi,conversion-interval:	: 0    : convert one time only
+				  1-255: 515us + val * 35us (up to 9.440ms)
+				  This property has to be a '/bits/ 8' value
+- gpio-controller		: Switch AUX/VBAT/GPIO pin to GPIO mode
+
+Example:
+
+	touchscreen0@2c {
+		compatible = "adi,ad7879-1";
+		reg = <0x2c>;
+		interrupt-parent = <&gpio1>;
+		interrupts = <13 IRQ_TYPE_EDGE_FALLING>;
+		touchscreen-max-pressure = <4096>;
+		adi,resistance-plate-x = <120>;
+		adi,first-conversion-delay = /bits/ 8 <3>;
+		adi,acquisition-time = /bits/ 8 <1>;
+		adi,median-filter-size = /bits/ 8 <2>;
+		adi,averaging = /bits/ 8 <1>;
+		adi,conversion-interval = /bits/ 8 <255>;
+	};
+
+	touchscreen1@1 {
+		compatible = "adi,ad7879";
+		spi-max-frequency = <5000000>;
+		reg = <1>;
+		spi-cpol;
+		spi-cpha;
+		gpio-controller;
+		interrupt-parent = <&gpio1>;
+		interrupts = <13 IRQ_TYPE_EDGE_FALLING>;
+		touchscreen-max-pressure = <4096>;
+		adi,resistance-plate-x = <120>;
+		adi,first-conversion-delay = /bits/ 8 <3>;
+		adi,acquisition-time = /bits/ 8 <1>;
+		adi,median-filter-size = /bits/ 8 <2>;
+		adi,averaging = /bits/ 8 <1>;
+		adi,conversion-interval = /bits/ 8 <255>;
+	};
diff --git a/Documentation/devicetree/bindings/input/touchscreen/ads7846.txt b/Documentation/devicetree/bindings/input/touchscreen/ads7846.txt
new file mode 100644
index 000000000..81f6bda97
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/ads7846.txt
@@ -0,0 +1,106 @@
+Device tree bindings for TI's ADS7843, ADS7845, ADS7846, ADS7873, TSC2046
+SPI driven touch screen controllers.
+
+The node for this driver must be a child node of a SPI controller, hence
+all mandatory properties described in
+
+	Documentation/devicetree/bindings/spi/spi-bus.txt
+
+must be specified.
+
+Additional required properties:
+
+	compatible		Must be one of the following, depending on the
+				model:
+					"ti,tsc2046"
+					"ti,ads7843"
+					"ti,ads7845"
+					"ti,ads7846"
+					"ti,ads7873"
+
+	interrupts		An interrupt node describing the IRQ line the chip's
+				!PENIRQ pin is connected to.
+	vcc-supply		A regulator node for the supply voltage.
+
+
+Optional properties:
+
+	ti,vref-delay-usecs		vref supply delay in usecs, 0 for
+					external vref (u16).
+	ti,vref-mv			The VREF voltage, in millivolts (u16).
+					Set to 0 to use internal references
+					(ADS7846).
+	ti,keep-vref-on			set to keep vref on for differential
+					measurements as well
+	ti,settle-delay-usec		Settling time of the analog signals;
+					a function of Vcc and the capacitance
+					on the X/Y drivers.  If set to non-zero,
+					two samples are taken with settle_delay
+					us apart, and the second one is used.
+					~150 uSec with 0.01uF caps (u16).
+	ti,penirq-recheck-delay-usecs	If set to non-zero, after samples are
+					taken this delay is applied and penirq
+					is rechecked, to help avoid false
+					events.  This value is affected by the
+					material used to build the touch layer
+					(u16).
+	ti,x-plate-ohms			Resistance of the X-plate,
+					in Ohms (u16).
+	ti,y-plate-ohms			Resistance of the Y-plate,
+					in Ohms (u16).
+	ti,x-min			Minimum value on the X axis (u16).
+	ti,y-min			Minimum value on the Y axis (u16).
+	ti,debounce-tol			Tolerance used for filtering (u16).
+	ti,debounce-rep			Additional consecutive good readings
+					required after the first two (u16).
+	ti,pendown-gpio-debounce	Platform specific debounce time for the
+					pendown-gpio (u32).
+	pendown-gpio			GPIO handle describing the pin the !PENIRQ
+					line is connected to.
+	wakeup-source			use any event on touchscreen as wakeup event.
+					(Legacy property support: "linux,wakeup")
+	touchscreen-size-x		General touchscreen binding, see [1].
+	touchscreen-size-y		General touchscreen binding, see [1].
+	touchscreen-max-pressure	General touchscreen binding, see [1].
+	touchscreen-min-pressure	General touchscreen binding, see [1].
+	touchscreen-average-samples	General touchscreen binding, see [1].
+	touchscreen-inverted-x		General touchscreen binding, see [1].
+	touchscreen-inverted-y		General touchscreen binding, see [1].
+	touchscreen-swapped-x-y		General touchscreen binding, see [1].
+
+[1] All general touchscreen properties are described in
+    Documentation/devicetree/bindings/input/touchscreen/touchscreen.txt.
+
+Deprecated properties:
+
+	ti,swap-xy			swap x and y axis
+	ti,x-max			Maximum value on the X axis (u16).
+	ti,y-max			Maximum value on the Y axis (u16).
+	ti,pressure-min			Minimum reported pressure value
+					(threshold) - u16.
+	ti,pressure-max			Maximum reported pressure value (u16).
+	ti,debounce-max			Max number of additional readings per
+					sample (u16).
+
+Example for a TSC2046 chip connected to an McSPI controller of an OMAP SoC::
+
+	spi_controller {
+		tsc2046@0 {
+			reg = <0>;	/* CS0 */
+			compatible = "ti,tsc2046";
+			interrupt-parent = <&gpio1>;
+			interrupts = <8 0>;	/* BOOT6 / GPIO 8 */
+			spi-max-frequency = <1000000>;
+			pendown-gpio = <&gpio1 8 0>;
+			vcc-supply = <&reg_vcc3>;
+
+			ti,x-min = /bits/ 16 <0>;
+			ti,x-max = /bits/ 16 <8000>;
+			ti,y-min = /bits/ 16 <0>;
+			ti,y-max = /bits/ 16 <4800>;
+			ti,x-plate-ohms = /bits/ 16 <40>;
+			ti,pressure-max = /bits/ 16 <255>;
+
+			wakeup-source;
+		};
+	};
diff --git a/Documentation/devicetree/bindings/input/touchscreen/ar1021.txt b/Documentation/devicetree/bindings/input/touchscreen/ar1021.txt
new file mode 100644
index 000000000..82019bd60
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/ar1021.txt
@@ -0,0 +1,15 @@
+* Microchip AR1020 and AR1021 touchscreen interface (I2C)
+
+Required properties:
+- compatible		: "microchip,ar1021-i2c"
+- reg			: I2C slave address
+- interrupts		: touch controller interrupt
+
+Example:
+
+	touchscreen@4d {
+		compatible = "microchip,ar1021-i2c";
+		reg = <0x4d>;
+		interrupt-parent = <&gpio3>;
+		interrupts = <11 IRQ_TYPE_LEVEL_HIGH>;
+	};
diff --git a/Documentation/devicetree/bindings/input/touchscreen/auo_pixcir_ts.txt b/Documentation/devicetree/bindings/input/touchscreen/auo_pixcir_ts.txt
new file mode 100644
index 000000000..f40f21c64
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/auo_pixcir_ts.txt
@@ -0,0 +1,30 @@
+* AUO in-cell touchscreen controller using Pixcir sensors
+
+Required properties:
+- compatible: must be "auo,auo_pixcir_ts"
+- reg: I2C address of the chip
+- interrupts: interrupt to which the chip is connected
+- gpios: gpios the chip is connected to
+  first one is the interrupt gpio and second one the reset gpio
+- x-size: horizontal resolution of touchscreen
+- y-size: vertical resolution of touchscreen
+
+Example:
+
+	i2c@00000000 {
+		/* ... */
+
+		auo_pixcir_ts@5c {
+			compatible = "auo,auo_pixcir_ts";
+			reg = <0x5c>;
+			interrupts = <2 0>;
+
+			gpios = <&gpf 2 0 2>, /* INT */
+				<&gpf 5 1 0>; /* RST */
+
+			x-size = <800>;
+			y-size = <600>;
+		};
+
+		/* ... */
+	};
diff --git a/Documentation/devicetree/bindings/input/touchscreen/brcm,iproc-touchscreen.txt b/Documentation/devicetree/bindings/input/touchscreen/brcm,iproc-touchscreen.txt
new file mode 100644
index 000000000..f127a2117
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/brcm,iproc-touchscreen.txt
@@ -0,0 +1,87 @@
+* Broadcom's IPROC Touchscreen Controller
+
+Required properties:
+- compatible: must be "brcm,iproc-touchscreen"
+- ts_syscon: handler of syscon node defining physical base
+  address of the controller and length of memory mapped region.
+  If this property is selected please make sure MFD_SYSCON config
+  is enabled in the defconfig file.
+- clocks:  The clock provided by the SOC to driver the tsc
+- clock-names:  name for the clock
+- interrupts: The touchscreen controller's interrupt
+- address-cells: Specify the number of u32 entries needed in child nodes.
+  Should set to 1.
+- size-cells: Specify number of u32 entries needed to specify child nodes size
+  in reg property. Should set to 1.
+
+Optional properties:
+- scanning_period: Time between scans. Each step is 1024 us.  Valid 1-256.
+- debounce_timeout: Each step is 512 us.  Valid 0-255
+- settling_timeout: The settling duration (in ms) is the amount of time
+                    the tsc waits to allow the voltage to settle after
+                    turning on the drivers in detection mode.
+                    Valid values: 0-11
+                    0 =  0.008 ms
+                    1 =  0.01 ms
+                    2 =  0.02 ms
+                    3 =  0.04 ms
+                    4 =  0.08 ms
+                    5 =  0.16 ms
+                    6 =  0.32 ms
+                    7 =  0.64 ms
+                    8 =  1.28 ms
+                    9 =  2.56 ms
+                   10 =  5.12 ms
+                   11 = 10.24 ms
+- touch_timeout: The continuous number of scan periods in which touch is
+                not detected before the controller returns to idle state.
+                Valid values 0-255.
+- average_data: Number of data samples which are averaged before a final
+                data point is placed into the FIFO
+                Valid values 0-7
+                0 =   1 sample
+                1 =   2 samples
+                2 =   4 samples
+                3 =   8 samples
+                4 =  16 samples
+                5 =  32 samples
+                6 =  64 samples
+                7 = 128 samples
+- fifo_threshold: Interrupt is generated whenever the number of fifo
+                entries exceeds this value
+                Valid values 0-31
+- touchscreen-size-x: horizontal resolution of touchscreen (in pixels)
+- touchscreen-size-y: vertical resolution of touchscreen (in pixels)
+- 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-inverted-x: X axis is inverted (boolean)
+- touchscreen-inverted-y: Y axis is inverted (boolean)
+
+Example: An example of touchscreen node
+
+	ts_adc_syscon: ts_adc_syscon@180a6000 {
+		compatible = "brcm,iproc-ts-adc-syscon","syscon";
+		reg = <0x180a6000 0xc30>;
+	};
+
+	touchscreen: touchscreen@180a6000 {
+		compatible = "brcm,iproc-touchscreen";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ts_syscon = <&ts_adc_syscon>;
+		clocks = <&adc_clk>;
+		clock-names = "tsc_clk";
+		interrupts = <GIC_SPI 164 IRQ_TYPE_LEVEL_HIGH>;
+
+		scanning_period = <5>;
+		debounce_timeout = <40>;
+		settling_timeout = <7>;
+		touch_timeout = <10>;
+		average_data = <5>;
+		fifo_threshold = <1>;
+		/* Touchscreen is rotated 180 degrees. */
+		touchscreen-inverted-x;
+		touchscreen-inverted-y;
+	};
diff --git a/Documentation/devicetree/bindings/input/touchscreen/bu21013.txt b/Documentation/devicetree/bindings/input/touchscreen/bu21013.txt
new file mode 100644
index 000000000..da4c9d8b9
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/bu21013.txt
@@ -0,0 +1,43 @@
+* Rohm BU21013 Touch Screen
+
+Required properties:
+ - compatible              : "rohm,bu21013_tp"
+ - reg                     : I2C device address
+ - reset-gpios             : GPIO pin enabling (selecting) chip (CS)
+ - interrupt-parent        : the phandle for the gpio controller
+ - interrupts              : (gpio) interrupt to which the chip is connected
+
+Optional properties:
+ - touch-gpios             : GPIO pin registering a touch event
+ - <supply_name>-supply    : Phandle to a regulator supply
+ - touchscreen-size-x      : General touchscreen binding, see [1].
+ - touchscreen-size-y      : General touchscreen binding, see [1].
+ - touchscreen-inverted-x  : General touchscreen binding, see [1].
+ - touchscreen-inverted-y  : General touchscreen binding, see [1].
+ - touchscreen-swapped-x-y : General touchscreen binding, see [1].
+
+[1] All general touchscreen properties are described in
+    Documentation/devicetree/bindings/input/touchscreen/touchscreen.txt.
+
+Deprecated properties:
+ - rohm,touch-max-x        : Maximum outward permitted limit in the X axis
+ - rohm,touch-max-y        : Maximum outward permitted limit in the Y axis
+ - rohm,flip-x             : Flip touch coordinates on the X axis
+ - rohm,flip-y             : Flip touch coordinates on the Y axis
+
+Example:
+
+	i2c@80110000 {
+		bu21013_tp@5c {
+			compatible = "rohm,bu21013_tp";
+			reg = <0x5c>;
+			interrupt-parent = <&gpio2>;
+			interrupts <&20 IRQ_TYPE_LEVEL_LOW>;
+			touch-gpio = <&gpio2 20 GPIO_ACTIVE_LOW>;
+			avdd-supply = <&ab8500_ldo_aux1_reg>;
+
+			touchscreen-size-x = <384>;
+			touchscreen-size-y = <704>;
+			touchscreen-inverted-y;
+		};
+	};
diff --git a/Documentation/devicetree/bindings/input/touchscreen/bu21029.txt b/Documentation/devicetree/bindings/input/touchscreen/bu21029.txt
new file mode 100644
index 000000000..8daa0e868
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/bu21029.txt
@@ -0,0 +1,35 @@
+* Rohm BU21029 Touch Screen Controller
+
+Required properties:
+ - compatible              : must be "rohm,bu21029"
+ - reg                     : i2c device address of the chip (0x40 or 0x41)
+ - interrupt-parent        : the phandle for the gpio controller
+ - interrupts              : (gpio) interrupt to which the chip is connected
+ - rohm,x-plate-ohms       : x-plate resistance in Ohm
+
+Optional properties:
+ - reset-gpios             : gpio pin to reset the chip (active low)
+ - touchscreen-size-x      : horizontal resolution of touchscreen (in pixels)
+ - touchscreen-size-y      : vertical resolution of touchscreen (in pixels)
+ - touchscreen-max-pressure: maximum pressure value
+ - vdd-supply              : power supply for the controller
+
+Example:
+
+	&i2c1 {
+		/* ... */
+
+		bu21029: bu21029@40 {
+			compatible = "rohm,bu21029";
+			reg = <0x40>;
+			interrupt-parent = <&gpio1>;
+			interrupts = <4 IRQ_TYPE_EDGE_FALLING>;
+			reset-gpios = <&gpio6 16 GPIO_ACTIVE_LOW>;
+			rohm,x-plate-ohms = <600>;
+			touchscreen-size-x = <800>;
+			touchscreen-size-y = <480>;
+			touchscreen-max-pressure = <4095>;
+		};
+
+		/* ... */
+	};
diff --git a/Documentation/devicetree/bindings/input/touchscreen/chipone_icn8318.txt b/Documentation/devicetree/bindings/input/touchscreen/chipone_icn8318.txt
new file mode 100644
index 000000000..38b0603f6
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/chipone_icn8318.txt
@@ -0,0 +1,44 @@
+* ChipOne icn8318 I2C touchscreen controller
+
+Required properties:
+ - compatible		  : "chipone,icn8318"
+ - reg			  : I2C slave address of the chip (0x40)
+ - interrupts		  : interrupt specification for the icn8318 interrupt
+ - wake-gpios		  : GPIO specification for the WAKE input
+ - touchscreen-size-x	  : horizontal resolution of touchscreen (in pixels)
+ - touchscreen-size-y	  : vertical resolution of touchscreen (in pixels)
+
+Optional properties:
+ - pinctrl-names	  : should be "default"
+ - pinctrl-0:		  : a phandle pointing to the pin settings for the
+			    control gpios
+ - 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-inverted-x : X axis is inverted (boolean)
+ - touchscreen-inverted-y : Y axis is inverted (boolean)
+ - touchscreen-swapped-x-y	  : X and Y axis are swapped (boolean)
+			    Swapping is done after inverting the axis
+
+Example:
+
+i2c@00000000 {
+	/* ... */
+
+	chipone_icn8318@40 {
+		compatible = "chipone,icn8318";
+		reg = <0x40>;
+		interrupt-parent = <&pio>;
+		interrupts = <9 IRQ_TYPE_EDGE_FALLING>; /* EINT9 (PG9) */
+		pinctrl-names = "default";
+		pinctrl-0 = <&ts_wake_pin_p66>;
+		wake-gpios = <&pio 1 3 GPIO_ACTIVE_HIGH>; /* PB3 */
+		touchscreen-size-x = <800>;
+		touchscreen-size-y = <480>;
+		touchscreen-inverted-x;
+		touchscreen-swapped-x-y;
+	};
+
+	/* ... */
+};
diff --git a/Documentation/devicetree/bindings/input/touchscreen/colibri-vf50-ts.txt b/Documentation/devicetree/bindings/input/touchscreen/colibri-vf50-ts.txt
new file mode 100644
index 000000000..2e1490a8f
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/colibri-vf50-ts.txt
@@ -0,0 +1,34 @@
+* Toradex Colibri VF50 Touchscreen driver
+
+Required Properties:
+- compatible must be toradex,vf50-touchscreen
+- io-channels: adc channels being used by the Colibri VF50 module
+- xp-gpios: FET gate driver for input of X+
+- xm-gpios: FET gate driver for input of X-
+- yp-gpios: FET gate driver for input of Y+
+- ym-gpios: FET gate driver for input of Y-
+- interrupts: pen irq interrupt for touch detection
+- pinctrl-names: "idle", "default", "gpios"
+- pinctrl-0: pinctrl node for pen/touch detection state pinmux
+- pinctrl-1: pinctrl node for X/Y and pressure measurement (ADC) state pinmux
+- pinctrl-2: pinctrl node for gpios functioning as FET gate drivers
+- vf50-ts-min-pressure: pressure level at which to stop measuring X/Y values
+
+Example:
+
+	touchctrl: vf50_touchctrl {
+		compatible = "toradex,vf50-touchscreen";
+		io-channels = <&adc1 0>,<&adc0 0>,
+				<&adc0 1>,<&adc1 2>;
+		xp-gpios = <&gpio0 13 GPIO_ACTIVE_LOW>;
+		xm-gpios = <&gpio2 29 GPIO_ACTIVE_HIGH>;
+		yp-gpios = <&gpio0 12 GPIO_ACTIVE_LOW>;
+		ym-gpios = <&gpio0 4 GPIO_ACTIVE_HIGH>;
+		interrupt-parent = <&gpio0>;
+		interrupts = <8 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-names = "idle","default","gpios";
+		pinctrl-0 = <&pinctrl_touchctrl_idle>;
+		pinctrl-1 = <&pinctrl_touchctrl_default>;
+		pinctrl-2 = <&pinctrl_touchctrl_gpios>;
+		vf50-ts-min-pressure = <200>;
+	};
diff --git a/Documentation/devicetree/bindings/input/touchscreen/cypress,cy8ctma140.yaml b/Documentation/devicetree/bindings/input/touchscreen/cypress,cy8ctma140.yaml
new file mode 100644
index 000000000..3225c8d1f
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/cypress,cy8ctma140.yaml
@@ -0,0 +1,72 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/touchscreen/cypress,cy8ctma140.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cypress CY8CTMA140 series touchscreen controller bindings
+
+maintainers:
+  - Linus Walleij <linus.walleij@linaro.org>
+
+allOf:
+  - $ref: touchscreen.yaml#
+
+properties:
+  compatible:
+    const: cypress,cy8ctma140
+
+  reg:
+    const: 0x20
+
+  clock-frequency:
+    description: I2C client clock frequency, defined for host
+    minimum: 100000
+    maximum: 400000
+
+  interrupts:
+    maxItems: 1
+
+  vcpin-supply:
+    description: Analog power supply regulator on VCPIN pin
+
+  vdd-supply:
+    description: Digital power supply regulator on VDD pin
+
+  touchscreen-inverted-x: true
+  touchscreen-inverted-y: true
+  touchscreen-size-x: true
+  touchscreen-size-y: true
+  touchscreen-swapped-x-y: true
+  touchscreen-max-pressure: true
+
+additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - touchscreen-size-x
+  - touchscreen-size-y
+  - touchscreen-max-pressure
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    i2c {
+      #address-cells = <1>;
+      #size-cells = <0>;
+      touchscreen@20 {
+        compatible = "cypress,cy8ctma140";
+        reg = <0x20>;
+        touchscreen-size-x = <480>;
+        touchscreen-size-y = <800>;
+        touchscreen-max-pressure = <255>;
+        interrupt-parent = <&gpio6>;
+        interrupts = <26 IRQ_TYPE_EDGE_FALLING>;
+        vdd-supply = <&ab8500_ldo_aux2_reg>;
+        vcpin-supply = <&ab8500_ldo_aux2_reg>;
+      };
+    };
+
+...
diff --git a/Documentation/devicetree/bindings/input/touchscreen/cyttsp.txt b/Documentation/devicetree/bindings/input/touchscreen/cyttsp.txt
new file mode 100644
index 000000000..6ee274aa8
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/cyttsp.txt
@@ -0,0 +1,93 @@
+* Cypress cyttsp touchscreen controller
+
+Required properties:
+ - compatible		: must be "cypress,cyttsp-i2c" or "cypress,cyttsp-spi"
+ - reg			: Device I2C address or SPI chip select number
+ - spi-max-frequency	: Maximum SPI clocking speed of the device (for cyttsp-spi)
+ - interrupts		: (gpio) interrupt to which the chip is connected
+			  (see interrupt binding[0]).
+ - bootloader-key	: the 8-byte bootloader key that is required to switch
+			  the chip from bootloader mode (default mode) to
+			  application mode.
+			  This property has to be specified as an array of 8
+			  '/bits/ 8' values.
+
+Optional properties:
+ - reset-gpios		: the reset gpio the chip is connected to
+			  (see GPIO binding[1] for more details).
+ - touchscreen-size-x	: horizontal resolution of touchscreen (in pixels)
+ - touchscreen-size-y	: vertical resolution of touchscreen (in pixels)
+ - 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)
+ - active-distance	: the distance in pixels beyond which a touch must move
+			  before movement is detected and reported by the device.
+			  Valid values: 0-15.
+ - active-interval-ms	: the minimum period in ms between consecutive
+			  scanning/processing cycles when the chip is in active mode.
+			  Valid values: 0-255.
+ - lowpower-interval-ms	: the minimum period in ms between consecutive
+			  scanning/processing cycles when the chip is in low-power mode.
+			  Valid values: 0-2550
+ - touch-timeout-ms	: minimum time in ms spent in the active power state while no
+			  touches are detected before entering low-power mode.
+			  Valid values: 0-2550
+ - use-handshake	: enable register-based handshake (boolean). This should
+			  only be used if the chip is configured to use 'blocking
+			  communication with timeout' (in this case the device
+			  generates an interrupt at the end of every
+			  scanning/processing cycle).
+
+[0]: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
+[1]: Documentation/devicetree/bindings/gpio/gpio.txt
+
+Example:
+	&i2c1 {
+		/* ... */
+		cyttsp@a {
+			compatible = "cypress,cyttsp-i2c";
+			reg = <0xa>;
+			interrupt-parent = <&gpio0>;
+			interrupts = <28 0>;
+			reset-gpios = <&gpio3 4 GPIO_ACTIVE_LOW>;
+
+			touchscreen-size-x = <800>;
+			touchscreen-size-y = <480>;
+			touchscreen-fuzz-x = <4>;
+			touchscreen-fuzz-y = <7>;
+
+			bootloader-key = /bits/ 8 <0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08>;
+			active-distance = <8>;
+			active-interval-ms = <0>;
+			lowpower-interval-ms = <200>;
+			touch-timeout-ms = <100>;
+		};
+
+		/* ... */
+	};
+
+	&mcspi1 {
+		/* ... */
+		cyttsp@0 {
+			compatible = "cypress,cyttsp-spi";
+			spi-max-frequency = <6000000>;
+			reg = <0>;
+			interrupt-parent = <&gpio0>;
+			interrupts = <28 0>;
+			reset-gpios = <&gpio3 4 GPIO_ACTIVE_LOW>;
+
+			touchscreen-size-x = <800>;
+			touchscreen-size-y = <480>;
+			touchscreen-fuzz-x = <4>;
+			touchscreen-fuzz-y = <7>;
+
+			bootloader-key = /bits/ 8 <0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08>;
+			active-distance = <8>;
+			active-interval-ms = <0>;
+			lowpower-interval-ms = <200>;
+			touch-timeout-ms = <100>;
+		};
+
+		/* ... */
+	};
diff --git a/Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.yaml b/Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.yaml
new file mode 100644
index 000000000..4ce109476
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.yaml
@@ -0,0 +1,121 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/touchscreen/edt-ft5x06.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: FocalTech EDT-FT5x06 Polytouch Bindings
+
+description: |
+             There are 5 variants of the chip for various touch panel sizes
+              FT5206GE1  2.8" .. 3.8"
+              FT5306DE4  4.3" .. 7"
+              FT5406EE8  7"   .. 8.9"
+              FT5506EEG  7"   .. 8.9"
+              FT5726NEI  5.7” .. 11.6"
+
+maintainers:
+  - Dmitry Torokhov <dmitry.torokhov@gmail.com>
+
+allOf:
+  - $ref: touchscreen.yaml#
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - evervision,ev-ft5726
+
+    then:
+      properties:
+        offset-x: true
+        offset-y: true
+
+properties:
+  compatible:
+    enum:
+      - edt,edt-ft5206
+      - edt,edt-ft5306
+      - edt,edt-ft5406
+      - edt,edt-ft5506
+      - evervision,ev-ft5726
+      - focaltech,ft6236
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  reset-gpios:
+    maxItems: 1
+
+  wake-gpios:
+    maxItems: 1
+
+  wakeup-source: true
+
+  vcc-supply:
+    maxItems: 1
+
+  gain:
+    description: Allows setting the sensitivity in the range from 0 to 31.
+                 Note that lower values indicate higher sensitivity.
+    $ref: /schemas/types.yaml#/definitions/uint32
+    minimum: 0
+    maximum: 31
+
+  offset:
+    description: Allows setting the edge compensation in the range from 0 to 31.
+    $ref: /schemas/types.yaml#/definitions/uint32
+    minimum: 0
+    maximum: 31
+
+  offset-x:
+    description: Same as offset, but applies only to the horizontal position.
+                 Range from 0 to 80, only supported by evervision,ev-ft5726 devices.
+    $ref: /schemas/types.yaml#/definitions/uint32
+    minimum: 0
+    maximum: 80
+
+  offset-y:
+    description: Same as offset, but applies only to the vertical position.
+                 Range from 0 to 80, only supported by evervision,ev-ft5726 devices.
+    $ref: /schemas/types.yaml#/definitions/uint32
+    minimum: 0
+    maximum: 80
+
+  touchscreen-size-x: true
+  touchscreen-size-y: true
+  touchscreen-fuzz-x: true
+  touchscreen-fuzz-y: true
+  touchscreen-inverted-x: true
+  touchscreen-inverted-y: true
+  touchscreen-swapped-x-y: true
+  interrupt-controller: true
+
+additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    i2c {
+      #address-cells = <1>;
+      #size-cells = <0>;
+      edt-ft5x06@38 {
+        compatible = "edt,edt-ft5406";
+        reg = <0x38>;
+        interrupt-parent = <&gpio2>;
+        interrupts = <5 IRQ_TYPE_EDGE_FALLING>;
+        reset-gpios = <&gpio2 6 GPIO_ACTIVE_LOW>;
+        wake-gpios = <&gpio4 9 GPIO_ACTIVE_HIGH>;
+      };
+    };
+
+...
diff --git a/Documentation/devicetree/bindings/input/touchscreen/eeti,exc3000.yaml b/Documentation/devicetree/bindings/input/touchscreen/eeti,exc3000.yaml
new file mode 100644
index 000000000..007adbc89
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/eeti,exc3000.yaml
@@ -0,0 +1,58 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/touchscreen/eeti,exc3000.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: EETI EXC3000 series touchscreen controller
+
+maintainers:
+  - Dmitry Torokhov <dmitry.torokhov@gmail.com>
+
+allOf:
+  - $ref: touchscreen.yaml#
+
+properties:
+  compatible:
+    enum:
+      - eeti,exc3000
+      - eeti,exc80h60
+      - eeti,exc80h84
+  reg:
+    const: 0x2a
+  interrupts:
+    maxItems: 1
+  reset-gpios:
+    maxItems: 1
+  touchscreen-size-x: true
+  touchscreen-size-y: true
+  touchscreen-inverted-x: true
+  touchscreen-inverted-y: true
+  touchscreen-swapped-x-y: true
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - touchscreen-size-x
+  - touchscreen-size-y
+
+additionalProperties: false
+
+examples:
+  - |
+    #include "dt-bindings/interrupt-controller/irq.h"
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+        touchscreen@2a {
+                compatible = "eeti,exc3000";
+                reg = <0x2a>;
+                interrupt-parent = <&gpio1>;
+                interrupts = <9 IRQ_TYPE_LEVEL_LOW>;
+                touchscreen-size-x = <4096>;
+                touchscreen-size-y = <4096>;
+                touchscreen-inverted-x;
+                touchscreen-swapped-x-y;
+        };
+    };
diff --git a/Documentation/devicetree/bindings/input/touchscreen/eeti.txt b/Documentation/devicetree/bindings/input/touchscreen/eeti.txt
new file mode 100644
index 000000000..32b3712c9
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/eeti.txt
@@ -0,0 +1,30 @@
+Bindings for EETI touchscreen controller
+
+Required properties:
+- compatible:	should be "eeti,exc3000-i2c"
+- reg:		I2C address of the chip. Should be set to <0xa>
+- interrupts:	interrupt to which the chip is connected
+
+Optional properties:
+- attn-gpios:	A handle to a GPIO to check whether interrupt is still
+		latched. This is necessary for platforms that lack
+		support for level-triggered IRQs.
+
+The following optional properties described in touchscreen.txt are
+also supported:
+
+- touchscreen-inverted-x
+- touchscreen-inverted-y
+- touchscreen-swapped-x-y
+
+Example:
+
+i2c-master {
+	touchscreen@a {
+		compatible = "eeti,exc3000-i2c";
+		reg = <0xa>;
+		interrupt-parent = <&gpio>;
+		interrupts = <123 IRQ_TYPE_EDGE_RISING>;
+		attn-gpios = <&gpio 123 GPIO_ACTIVE_HIGH>;
+	};
+};
diff --git a/Documentation/devicetree/bindings/input/touchscreen/egalax-ts.txt b/Documentation/devicetree/bindings/input/touchscreen/egalax-ts.txt
new file mode 100644
index 000000000..92fb2620f
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/egalax-ts.txt
@@ -0,0 +1,18 @@
+* EETI eGalax Multiple Touch Controller
+
+Required properties:
+- compatible: must be "eeti,egalax_ts"
+- reg: i2c slave address
+- interrupts: touch controller interrupt
+- wakeup-gpios: the gpio pin to be used for waking up the controller
+  and also used as irq pin
+
+Example:
+
+	touchscreen@4 {
+		compatible = "eeti,egalax_ts";
+		reg = <0x04>;
+		interrupt-parent = <&gpio1>;
+		interrupts = <9 2>;
+		wakeup-gpios = <&gpio1 9 0>;
+	};
diff --git a/Documentation/devicetree/bindings/input/touchscreen/ektf2127.txt b/Documentation/devicetree/bindings/input/touchscreen/ektf2127.txt
new file mode 100644
index 000000000..94c4fc644
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/ektf2127.txt
@@ -0,0 +1,25 @@
+* Elan eKTF2127 I2C touchscreen controller
+
+Required properties:
+ - compatible		  : "elan,ektf2127"
+ - reg			  : I2C slave address of the chip (0x40)
+ - interrupts		  : interrupt specification for the ektf2127 interrupt
+ - power-gpios		  : GPIO specification for the pin connected to the
+			    ektf2127's wake input. This needs to be driven high
+			    to take ektf2127 out of it's low power state
+
+For additional optional properties see: touchscreen.txt
+
+Example:
+
+i2c@00000000 {
+	ektf2127: touchscreen@15 {
+		compatible = "elan,ektf2127";
+		reg = <0x15>;
+		interrupt-parent = <&pio>;
+		interrupts = <6 11 IRQ_TYPE_EDGE_FALLING>
+		power-gpios = <&pio 1 3 GPIO_ACTIVE_HIGH>;
+		touchscreen-inverted-x;
+		touchscreen-swapped-x-y;
+	};
+};
diff --git a/Documentation/devicetree/bindings/input/touchscreen/elan,elants_i2c.yaml b/Documentation/devicetree/bindings/input/touchscreen/elan,elants_i2c.yaml
new file mode 100644
index 000000000..a792d6377
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/elan,elants_i2c.yaml
@@ -0,0 +1,69 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/input/touchscreen/elan,elants_i2c.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Elantech I2C Touchscreen
+
+maintainers:
+  - David Heidelberg <david@ixit.cz>
+
+allOf:
+  - $ref: touchscreen.yaml#
+
+properties:
+  compatible:
+    enum:
+      - elan,ektf3624
+      - elan,ekth3500
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  wakeup-source:
+    type: boolean
+    description: touchscreen can be used as a wakeup source.
+
+  reset-gpios:
+    description: reset gpio the chip is connected to.
+
+  vcc33-supply:
+    description: a phandle for the regulator supplying 3.3V power.
+
+  vccio-supply:
+    description: a phandle for the regulator supplying IO power.
+
+  touchscreen-inverted-x: true
+  touchscreen-inverted-y: true
+  touchscreen-size-x: true
+  touchscreen-size-y: true
+  touchscreen-swapped-x-y: true
+
+additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        touchscreen@10 {
+            compatible = "elan,ekth3500";
+            reg = <0x10>;
+
+            interrupt-parent = <&gpio4>;
+            interrupts = <0x0 IRQ_TYPE_EDGE_FALLING>;
+            wakeup-source;
+        };
+    };
diff --git a/Documentation/devicetree/bindings/input/touchscreen/fsl-mx25-tcq.txt b/Documentation/devicetree/bindings/input/touchscreen/fsl-mx25-tcq.txt
new file mode 100644
index 000000000..99d6f9d25
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/fsl-mx25-tcq.txt
@@ -0,0 +1,34 @@
+Freescale mx25 TS conversion queue module
+
+mx25 touchscreen conversion queue module which controls the ADC unit of the
+mx25 for attached touchscreens.
+
+Required properties:
+ - compatible: Should be "fsl,imx25-tcq".
+ - reg: Memory range of the device.
+ - interrupts: Should be the interrupt number associated with this module within
+   the tscadc unit (<0>).
+ - fsl,wires: Should be '<4>' or '<5>'
+
+Optional properties:
+ - fsl,pen-debounce-ns: Pen debounce time in nanoseconds.
+ - fsl,pen-threshold: Pen-down threshold for the touchscreen. This is a value
+   between 1 and 4096. It is the ratio between the internal reference voltage
+   and the measured voltage after the plate was precharged. Resistance between
+   plates and therefore the voltage decreases with pressure so that a smaller
+   value is equivalent to a higher pressure.
+ - fsl,settling-time-ns: Settling time in nanoseconds. The settling time is before
+   the actual touch detection to wait for an even charge distribution in the
+   plate.
+
+This device includes two conversion queues which can be added as subnodes.
+The first queue is for the touchscreen, the second for general purpose ADC.
+
+Example:
+	tsc: tcq@50030400 {
+		compatible = "fsl,imx25-tcq";
+		reg = <0x50030400 0x60>;
+		interrupt-parent = <&tscadc>;
+		interrupts = <0>;
+		fsl,wires = <4>;
+	};
diff --git a/Documentation/devicetree/bindings/input/touchscreen/goodix.yaml b/Documentation/devicetree/bindings/input/touchscreen/goodix.yaml
new file mode 100644
index 000000000..da5b0d87e
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/goodix.yaml
@@ -0,0 +1,79 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/touchscreen/goodix.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Goodix GT9xx series touchscreen controller Bindings
+
+maintainers:
+  - Dmitry Torokhov <dmitry.torokhov@gmail.com>
+
+allOf:
+  - $ref: touchscreen.yaml#
+
+properties:
+  compatible:
+    enum:
+      - goodix,gt1151
+      - goodix,gt5663
+      - goodix,gt5688
+      - goodix,gt911
+      - goodix,gt9110
+      - goodix,gt912
+      - goodix,gt9147
+      - goodix,gt917s
+      - goodix,gt927
+      - goodix,gt9271
+      - goodix,gt928
+      - goodix,gt967
+
+  reg:
+    enum: [ 0x5d, 0x14 ]
+
+  interrupts:
+    maxItems: 1
+
+  irq-gpios:
+    description: GPIO pin used for IRQ. The driver uses the interrupt gpio pin
+      as output to reset the device.
+    maxItems: 1
+
+  reset-gpios:
+    maxItems: 1
+
+  AVDD28-supply:
+    description: Analog power supply regulator on AVDD28 pin
+
+  VDDIO-supply:
+    description: GPIO power supply regulator on VDDIO pin
+
+  touchscreen-inverted-x: true
+  touchscreen-inverted-y: true
+  touchscreen-size-x: true
+  touchscreen-size-y: true
+  touchscreen-swapped-x-y: true
+
+additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+examples:
+  - |
+    i2c {
+      #address-cells = <1>;
+      #size-cells = <0>;
+      gt928@5d {
+        compatible = "goodix,gt928";
+        reg = <0x5d>;
+        interrupt-parent = <&gpio>;
+        interrupts = <0 0>;
+        irq-gpios = <&gpio1 0 0>;
+        reset-gpios = <&gpio1 1 0>;
+      };
+    };
+
+...
diff --git a/Documentation/devicetree/bindings/input/touchscreen/hideep.txt b/Documentation/devicetree/bindings/input/touchscreen/hideep.txt
new file mode 100644
index 000000000..a47c36190
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/hideep.txt
@@ -0,0 +1,41 @@
+* HiDeep Finger and Stylus touchscreen controller
+
+Required properties:
+- compatible		: must be "hideep,hideep-ts"
+- reg			: I2C slave address, (e.g. 0x6C).
+- interrupts : Interrupt to which the chip is connected.
+
+Optional properties:
+- vdd-supply	: It is the controller supply for controlling
+					 main voltage(3.3V) through the regulator.
+- vid-supply	: It is the controller supply for controlling
+					IO voltage(1.8V) through the regulator.
+- reset-gpios	: Define for reset gpio pin.
+						It is to use for reset IC.
+- touchscreen-size-x	: X axis size of touchscreen
+- touchscreen-size-y	: Y axis size of touchscreen
+- linux,keycodes	: Specifies an array of numeric keycode values to
+			be used for reporting button presses. The array can
+			contain up to 3 entries.
+
+Example:
+
+#include "dt-bindings/input/input.h"
+
+i2c@00000000 {
+
+	/* ... */
+
+	touchscreen@6c {
+		compatible = "hideep,hideep-ts";
+		reg = <0x6c>;
+		interrupt-parent = <&gpx1>;
+		interrupts = <2 IRQ_TYPE_LEVEL_LOW>;
+		vdd-supply = <&ldo15_reg>;
+		vid-supply = <&ldo18_reg>;
+		reset-gpios = <&gpx1 5 0>;
+		touchscreen-size-x = <1080>;
+		touchscreen-size-y = <1920>;
+		linux,keycodes = <KEY_HOME>, <KEY_MENU>, <KEY_BACK>;
+	};
+};
diff --git a/Documentation/devicetree/bindings/input/touchscreen/imx6ul_tsc.txt b/Documentation/devicetree/bindings/input/touchscreen/imx6ul_tsc.txt
new file mode 100644
index 000000000..164915004
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/imx6ul_tsc.txt
@@ -0,0 +1,38 @@
+* Freescale i.MX6UL Touch Controller
+
+Required properties:
+- compatible: must be "fsl,imx6ul-tsc".
+- reg: this touch controller address and the ADC2 address.
+- interrupts: the interrupt of this touch controller and ADC2.
+- clocks: the root clock of touch controller and ADC2.
+- clock-names; must be "tsc" and "adc".
+- xnur-gpio: the X- gpio this controller connect to.
+  This xnur-gpio returns to low once the finger leave the touch screen (The
+  last touch event the touch controller capture).
+
+Optional properties:
+- measure-delay-time: the value of measure delay time.
+  Before X-axis or Y-axis measurement, the screen need some time before
+  even potential distribution ready.
+  This value depends on the touch screen.
+- pre-charge-time: the touch screen need some time to precharge.
+  This value depends on the touch screen.
+- touchscreen-average-samples: Number of data samples which are averaged for
+  each read. Valid values are 1, 4, 8, 16 and 32.
+
+Example:
+	tsc: tsc@2040000 {
+		compatible = "fsl,imx6ul-tsc";
+		reg = <0x02040000 0x4000>, <0x0219c000 0x4000>;
+		interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 101 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&clks IMX6UL_CLK_IPG>,
+			 <&clks IMX6UL_CLK_ADC2>;
+		clock-names = "tsc", "adc";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_tsc>;
+		xnur-gpio = <&gpio1 3 GPIO_ACTIVE_LOW>;
+		measure-delay-time = <0xfff>;
+		pre-charge-time = <0xffff>;
+		touchscreen-average-samples = <32>;
+	};
diff --git a/Documentation/devicetree/bindings/input/touchscreen/iqs5xx.txt b/Documentation/devicetree/bindings/input/touchscreen/iqs5xx.txt
new file mode 100644
index 000000000..efa0820e2
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/iqs5xx.txt
@@ -0,0 +1,80 @@
+Azoteq IQS550/572/525 Trackpad/Touchscreen Controller
+
+Required properties:
+
+- compatible			: Must be equal to one of the following:
+				  "azoteq,iqs550"
+				  "azoteq,iqs572"
+				  "azoteq,iqs525"
+
+- reg				: I2C slave address for the device.
+
+- interrupts			: GPIO to which the device's active-high RDY
+				  output is connected (see [0]).
+
+- reset-gpios			: GPIO to which the device's active-low NRST
+				  input is connected (see [1]).
+
+Optional properties:
+
+- touchscreen-min-x		: See [2].
+
+- touchscreen-min-y		: See [2].
+
+- touchscreen-size-x		: See [2]. If this property is omitted, the
+				  maximum x-coordinate is specified by the
+				  device's "X Resolution" register.
+
+- touchscreen-size-y		: See [2]. If this property is omitted, the
+				  maximum y-coordinate is specified by the
+				  device's "Y Resolution" register.
+
+- touchscreen-max-pressure	: See [2]. Pressure is expressed as the sum of
+				  the deltas across all channels impacted by a
+				  touch event. A channel's delta is calculated
+				  as its count value minus a reference, where
+				  the count value is inversely proportional to
+				  the channel's capacitance.
+
+- touchscreen-fuzz-x		: See [2].
+
+- touchscreen-fuzz-y		: See [2].
+
+- touchscreen-fuzz-pressure	: See [2].
+
+- touchscreen-inverted-x	: See [2]. Inversion is applied relative to that
+				  which may already be specified by the device's
+				  FLIP_X and FLIP_Y register fields.
+
+- touchscreen-inverted-y	: See [2]. Inversion is applied relative to that
+				  which may already be specified by the device's
+				  FLIP_X and FLIP_Y register fields.
+
+- touchscreen-swapped-x-y	: See [2]. Swapping is applied relative to that
+				  which may already be specified by the device's
+				  SWITCH_XY_AXIS register field.
+
+[0]: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
+[1]: Documentation/devicetree/bindings/gpio/gpio.txt
+[2]: Documentation/devicetree/bindings/input/touchscreen/touchscreen.txt
+
+Example:
+
+	&i2c1 {
+		/* ... */
+
+		touchscreen@74 {
+			compatible = "azoteq,iqs550";
+			reg = <0x74>;
+			interrupt-parent = <&gpio>;
+			interrupts = <17 4>;
+			reset-gpios = <&gpio 27 1>;
+
+			touchscreen-size-x = <640>;
+			touchscreen-size-y = <480>;
+
+			touchscreen-max-pressure = <16000>;
+		};
+
+		/* ... */
+	};
diff --git a/Documentation/devicetree/bindings/input/touchscreen/lpc32xx-tsc.txt b/Documentation/devicetree/bindings/input/touchscreen/lpc32xx-tsc.txt
new file mode 100644
index 000000000..41cbf4b7a
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/lpc32xx-tsc.txt
@@ -0,0 +1,16 @@
+* NXP LPC32xx SoC Touchscreen Controller (TSC)
+
+Required properties:
+- compatible: must be "nxp,lpc3220-tsc"
+- reg: physical base address of the controller and length of memory mapped
+  region.
+- interrupts: The TSC/ADC interrupt
+
+Example:
+
+	tsc@40048000 {
+		compatible = "nxp,lpc3220-tsc";
+		reg = <0x40048000 0x1000>;
+		interrupt-parent = <&mic>;
+		interrupts = <39 0>;
+	};
diff --git a/Documentation/devicetree/bindings/input/touchscreen/max11801-ts.txt b/Documentation/devicetree/bindings/input/touchscreen/max11801-ts.txt
new file mode 100644
index 000000000..05e982c34
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/max11801-ts.txt
@@ -0,0 +1,17 @@
+* MAXI MAX11801 Resistive touch screen controller with i2c interface
+
+Required properties:
+- compatible: must be "maxim,max11801"
+- reg: i2c slave address
+- interrupts: touch controller interrupt
+
+Example:
+
+&i2c1 {
+	max11801: touchscreen@48 {
+		compatible = "maxim,max11801";
+		reg = <0x48>;
+		interrupt-parent = <&gpio3>;
+		interrupts = <31 IRQ_TYPE_EDGE_FALLING>;
+	};
+};
diff --git a/Documentation/devicetree/bindings/input/touchscreen/melfas_mip4.txt b/Documentation/devicetree/bindings/input/touchscreen/melfas_mip4.txt
new file mode 100644
index 000000000..b2ab5498e
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/melfas_mip4.txt
@@ -0,0 +1,20 @@
+* MELFAS MIP4 Touchscreen
+
+Required properties:
+- compatible: must be "melfas,mip4_ts"
+- reg: I2C slave address of the chip (0x48 or 0x34)
+- interrupts: interrupt to which the chip is connected
+
+Optional properties:
+- ce-gpios: GPIO connected to the CE (chip enable) pin of the chip
+
+Example:
+	i2c@00000000 {
+		touchscreen: melfas_mip4@48 {
+			compatible = "melfas,mip4_ts";
+			reg = <0x48>;
+			interrupt-parent = <&gpio>;
+			interrupts = <0 IRQ_TYPE_EDGE_FALLING>;
+			ce-gpios = <&gpio 0 GPIO_ACTIVE_HIGH>;
+		};
+	};
diff --git a/Documentation/devicetree/bindings/input/touchscreen/mms114.txt b/Documentation/devicetree/bindings/input/touchscreen/mms114.txt
new file mode 100644
index 000000000..707234cfd
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/mms114.txt
@@ -0,0 +1,42 @@
+* MELFAS MMS114/MMS152/MMS345L touchscreen controller
+
+Required properties:
+- compatible: should be one of:
+	- "melfas,mms114"
+	- "melfas,mms152"
+	- "melfas,mms345l"
+- reg: I2C address of the chip
+- interrupts: interrupt to which the chip is connected
+- touchscreen-size-x: See [1]
+- touchscreen-size-y: See [1]
+
+Optional properties:
+- touchscreen-fuzz-x: See [1]
+- touchscreen-fuzz-y: See [1]
+- touchscreen-fuzz-pressure: See [1]
+- touchscreen-inverted-x: See [1]
+- touchscreen-inverted-y: See [1]
+- touchscreen-swapped-x-y: See [1]
+
+[1]: Documentation/devicetree/bindings/input/touchscreen/touchscreen.txt
+
+Example:
+
+	i2c@00000000 {
+		/* ... */
+
+		touchscreen@48 {
+			compatible = "melfas,mms114";
+			reg = <0x48>;
+			interrupts = <39 0>;
+			touchscreen-size-x = <720>;
+			touchscreen-size-y = <1280>;
+			touchscreen-fuzz-x = <10>;
+			touchscreen-fuzz-y = <10>;
+			touchscreen-fuzz-pressure = <10>;
+			touchscreen-inverted-x;
+			touchscreen-inverted-y;
+		};
+
+		/* ... */
+	};
diff --git a/Documentation/devicetree/bindings/input/touchscreen/pixcir_i2c_ts.txt b/Documentation/devicetree/bindings/input/touchscreen/pixcir_i2c_ts.txt
new file mode 100644
index 000000000..697a3e783
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/pixcir_i2c_ts.txt
@@ -0,0 +1,31 @@
+* Pixcir I2C touchscreen controllers
+
+Required properties:
+- compatible: must be "pixcir,pixcir_ts" or "pixcir,pixcir_tangoc"
+- reg: I2C address of the chip
+- interrupts: interrupt to which the chip is connected
+- attb-gpio: GPIO connected to the ATTB line of the chip
+- touchscreen-size-x: horizontal resolution of touchscreen (in pixels)
+- touchscreen-size-y: vertical resolution of touchscreen (in pixels)
+
+Optional properties:
+- reset-gpios: GPIO connected to the RESET line of the chip
+- enable-gpios: GPIO connected to the ENABLE line of the chip
+- wake-gpios: GPIO connected to the WAKE line of the chip
+
+Example:
+
+	i2c@00000000 {
+		/* ... */
+
+		pixcir_ts@5c {
+			compatible = "pixcir,pixcir_ts";
+			reg = <0x5c>;
+			interrupts = <2 0>;
+			attb-gpio = <&gpf 2 0 2>;
+			touchscreen-size-x = <800>;
+			touchscreen-size-y = <600>;
+		};
+
+		/* ... */
+	};
diff --git a/Documentation/devicetree/bindings/input/touchscreen/raspberrypi,firmware-ts.txt b/Documentation/devicetree/bindings/input/touchscreen/raspberrypi,firmware-ts.txt
new file mode 100644
index 000000000..2a1af240c
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/raspberrypi,firmware-ts.txt
@@ -0,0 +1,26 @@
+Raspberry Pi firmware based 7" touchscreen
+=====================================
+
+Required properties:
+ - compatible: "raspberrypi,firmware-ts"
+
+Optional properties:
+ - firmware: Reference to RPi's firmware device node
+ - touchscreen-size-x: See touchscreen.txt
+ - touchscreen-size-y: See touchscreen.txt
+ - touchscreen-inverted-x: See touchscreen.txt
+ - touchscreen-inverted-y: See touchscreen.txt
+ - touchscreen-swapped-x-y: See touchscreen.txt
+
+Example:
+
+firmware: firmware-rpi {
+	compatible = "raspberrypi,bcm2835-firmware";
+	mboxes = <&mailbox>;
+
+	ts: touchscreen {
+		compatible = "raspberrypi,firmware-ts";
+		touchscreen-size-x = <800>;
+		touchscreen-size-y = <480>;
+	};
+};
diff --git a/Documentation/devicetree/bindings/input/touchscreen/resistive-adc-touch.txt b/Documentation/devicetree/bindings/input/touchscreen/resistive-adc-touch.txt
new file mode 100644
index 000000000..51456c0e9
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/resistive-adc-touch.txt
@@ -0,0 +1,30 @@
+Generic resistive touchscreen ADC
+
+Required properties:
+
+ - compatible: must be "resistive-adc-touch"
+The device must be connected to an ADC device that provides channels for
+position measurement and optional pressure.
+Refer to ../iio/iio-bindings.txt for details
+ - iio-channels: must have at least two channels connected to an ADC device.
+These should correspond to the channels exposed by the ADC device and should
+have the right index as the ADC device registers them. These channels
+represent the relative position on the "x" and "y" axes.
+ - iio-channel-names: must have all the channels' names. Mandatory channels
+are "x" and "y".
+
+Optional properties:
+ - iio-channels: The third channel named "pressure" is optional and can be
+used if the ADC device also measures pressure besides position.
+If this channel is missing, pressure will be ignored and the touchscreen
+will only report position.
+ - iio-channel-names: optional channel named "pressure".
+
+Example:
+
+	resistive_touch: resistive_touch {
+		compatible = "resistive-adc-touch";
+		touchscreen-min-pressure = <50000>;
+		io-channels = <&adc 24>, <&adc 25>, <&adc 26>;
+		io-channel-names = "x", "y", "pressure";
+	};
diff --git a/Documentation/devicetree/bindings/input/touchscreen/samsung,s6sy761.txt b/Documentation/devicetree/bindings/input/touchscreen/samsung,s6sy761.txt
new file mode 100644
index 000000000..6805d10d2
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/samsung,s6sy761.txt
@@ -0,0 +1,32 @@
+* Samsung S6SY761 touchscreen controller
+
+Required properties:
+- compatible		: must be "samsung,s6sy761"
+- reg			: I2C slave address, (e.g. 0x48)
+- interrupts		: interrupt specification
+- avdd-supply		: analogic power supply
+- vdd-supply		: power supply
+
+Optional properties:
+- touchscreen-size-x	: see touchscreen.txt. This property is embedded in the
+			  device. If defined it forces a different x resolution.
+- touchscreen-size-y	: see touchscreen.txt. This property is embedded in the
+			  device. If defined it forces a different y resolution.
+
+Example:
+
+i2c@00000000 {
+
+	/* ... */
+
+	touchscreen@48 {
+		compatible = "samsung,s6sy761";
+		reg = <0x48>;
+		interrupt-parent = <&gpa1>;
+		interrupts = <1 IRQ_TYPE_NONE>;
+		avdd-supply = <&ldo30_reg>;
+		vdd-supply = <&ldo31_reg>;
+		touchscreen-size-x = <4096>;
+		touchscreen-size-y = <4096>;
+	};
+};
diff --git a/Documentation/devicetree/bindings/input/touchscreen/silead_gsl1680.txt b/Documentation/devicetree/bindings/input/touchscreen/silead_gsl1680.txt
new file mode 100644
index 000000000..d67e558e5
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/silead_gsl1680.txt
@@ -0,0 +1,44 @@
+* GSL 1680 touchscreen controller
+
+Required properties:
+- compatible		  : Must be one of the following, depending on the model:
+			    "silead,gsl1680"
+			    "silead,gsl1688"
+			    "silead,gsl3670"
+			    "silead,gsl3675"
+			    "silead,gsl3692"
+- reg			  : I2C slave address of the chip (0x40)
+- interrupts		  : interrupt specification for the gsl1680 interrupt
+- power-gpios		  : Specification for the pin connected to the gsl1680's
+			    shutdown input. This needs to be driven high to take the
+			    gsl1680 out of its low power state
+- touchscreen-size-x	  : See touchscreen.txt
+- touchscreen-size-y	  : See touchscreen.txt
+
+Optional properties:
+- firmware-name		  : File basename (string) for board specific firmware
+- touchscreen-inverted-x  : See touchscreen.txt
+- touchscreen-inverted-y  : See touchscreen.txt
+- touchscreen-swapped-x-y : See touchscreen.txt
+- silead,max-fingers	  : maximum number of fingers the touchscreen can detect
+- silead,home-button	  : Boolean, set to true on devices which have a
+			    capacitive home-button build into the touchscreen
+- vddio-supply		  : regulator phandle for controller VDDIO
+- avdd-supply		  : regulator phandle for controller AVDD
+
+Example:
+
+i2c@00000000 {
+	gsl1680: touchscreen@40 {
+		compatible = "silead,gsl1680";
+		reg = <0x40>;
+		interrupt-parent = <&pio>;
+		interrupts = <6 11 IRQ_TYPE_EDGE_FALLING>;
+		power-gpios = <&pio 1 3 GPIO_ACTIVE_HIGH>;
+		touchscreen-size-x = <480>;
+		touchscreen-size-y = <800>;
+		touchscreen-inverted-x;
+		touchscreen-swapped-x-y;
+		silead,max-fingers = <5>;
+	};
+};
diff --git a/Documentation/devicetree/bindings/input/touchscreen/sis_i2c.txt b/Documentation/devicetree/bindings/input/touchscreen/sis_i2c.txt
new file mode 100644
index 000000000..8f5322e01
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/sis_i2c.txt
@@ -0,0 +1,31 @@
+* SiS I2C Multiple Touch Controller
+
+Required properties:
+- compatible: must be "sis,9200-ts"
+- reg: i2c slave address
+- interrupts: touch controller interrupt (see interrupt
+  binding [0])
+
+Optional properties:
+- pinctrl-names: should be "default" (see pinctrl binding [1]).
+- pinctrl-0: a phandle pointing to the pin settings for the
+  device (see pinctrl binding [1]).
+- attn-gpios: the gpio pin used as attention line
+- reset-gpios: the gpio pin used to reset the controller
+- wakeup-source: touchscreen can be used as a wakeup source
+
+[0]: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
+[1]: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
+
+Example:
+
+	sis9255@5c  {
+		compatible = "sis,9200-ts";
+		reg = <0x5c>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_sis>;
+		interrupt-parent = <&gpio3>;
+		interrupts = <19 IRQ_TYPE_EDGE_FALLING>;
+		irq-gpios = <&gpio3 19 GPIO_ACTIVE_LOW>;
+		reset-gpios = <&gpio2 30 GPIO_ACTIVE_LOW>;
+	};
diff --git a/Documentation/devicetree/bindings/input/touchscreen/sitronix-st1232.txt b/Documentation/devicetree/bindings/input/touchscreen/sitronix-st1232.txt
new file mode 100644
index 000000000..019373253
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/sitronix-st1232.txt
@@ -0,0 +1,28 @@
+* Sitronix st1232 or st1633 touchscreen controller
+
+Required properties:
+- compatible: must contain one of
+  * "sitronix,st1232"
+  * "sitronix,st1633"
+- reg: I2C address of the chip
+- interrupts: interrupt to which the chip is connected
+
+Optional properties:
+- gpios: a phandle to the reset GPIO
+
+For additional optional properties see: touchscreen.txt
+
+Example:
+
+	i2c@00000000 {
+		/* ... */
+
+		touchscreen@55 {
+			compatible = "sitronix,st1232";
+			reg = <0x55>;
+			interrupts = <2 0>;
+			gpios = <&gpio1 166 0>;
+		};
+
+		/* ... */
+	};
diff --git a/Documentation/devicetree/bindings/input/touchscreen/st,stmfts.txt b/Documentation/devicetree/bindings/input/touchscreen/st,stmfts.txt
new file mode 100644
index 000000000..0a5d0cb4a
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/st,stmfts.txt
@@ -0,0 +1,41 @@
+* ST-Microelectronics FingerTip touchscreen controller
+
+The ST-Microelectronics FingerTip device provides a basic touchscreen
+functionality. Along with it the user can enable the touchkey which can work as
+a basic HOME and BACK key for phones.
+
+The driver supports also hovering as an absolute single touch event with x, y, z
+coordinates.
+
+Required properties:
+- compatible		: must be "st,stmfts"
+- reg			: I2C slave address, (e.g. 0x49)
+- interrupts		: interrupt specification
+- avdd-supply		: analogic power supply
+- vdd-supply		: power supply
+- touchscreen-size-x	: see touchscreen.txt
+- touchscreen-size-y	: see touchscreen.txt
+
+Optional properties:
+- touch-key-connected	: specifies whether the touchkey feature is connected
+- ledvdd-supply		: power supply to the touch key leds
+
+Example:
+
+i2c@00000000 {
+
+	/* ... */
+
+	touchscreen@49 {
+		compatible = "st,stmfts";
+		reg = <0x49>;
+		interrupt-parent = <&gpa1>;
+		interrupts = <1 IRQ_TYPE_NONE>;
+		touchscreen-size-x = <1599>;
+		touchscreen-size-y = <2559>;
+		touch-key-connected;
+		avdd-supply = <&ldo30_reg>;
+		vdd-supply = <&ldo31_reg>;
+		ledvdd-supply = <&ldo33_reg>;
+	};
+};
diff --git a/Documentation/devicetree/bindings/input/touchscreen/stmpe.txt b/Documentation/devicetree/bindings/input/touchscreen/stmpe.txt
new file mode 100644
index 000000000..c54992460
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/stmpe.txt
@@ -0,0 +1,109 @@
+STMPE Touchscreen
+----------------
+
+Required properties:
+ - compatible: "st,stmpe-ts"
+
+Optional properties:
+- st,ave-ctrl		: Sample average control
+				0 -> 1 sample
+				1 -> 2 samples
+				2 -> 4 samples
+				3 -> 8 samples
+- st,touch-det-delay	: Touch detect interrupt delay (recommended is 3)
+				0 -> 10 us
+				1 -> 50 us
+				2 -> 100 us
+				3 -> 500 us
+				4 -> 1 ms
+				5 -> 5 ms
+				6 -> 10 ms
+				7 -> 50 ms
+- st,settling		: Panel driver settling time (recommended is 2)
+				0 -> 10 us
+				1 -> 100 us
+				2 -> 500 us
+				3 -> 1 ms
+				4 -> 5 ms
+				5 -> 10 ms
+				6 -> 50 ms
+				7 -> 100 ms
+- st,fraction-z		: Length of the fractional part in z (recommended is 7)
+			  (fraction-z ([0..7]) = Count of the fractional part)
+- st,i-drive		: current limit value of the touchscreen drivers
+				0 -> 20 mA (typical 35mA max)
+				1 -> 50 mA (typical 80 mA max)
+
+Optional properties common with MFD (deprecated):
+ - st,sample-time	: ADC conversion time in number of clock.
+				0 -> 36 clocks
+				1 -> 44 clocks
+				2 -> 56 clocks
+				3 -> 64 clocks
+				4 -> 80 clocks (recommended)
+				5 -> 96 clocks
+				6 -> 124 clocks
+ - st,mod-12b		: ADC Bit mode
+				0 -> 10bit ADC
+				1 -> 12bit ADC
+ - st,ref-sel		: ADC reference source
+				0 -> internal
+				1 -> external
+ - st,adc-freq		: ADC Clock speed
+				0 -> 1.625 MHz
+				1 -> 3.25 MHz
+				2 || 3 -> 6.5 MHz
+
+Node name must be stmpe_touchscreen and should be child node of stmpe node to
+which it belongs.
+
+Note that common ADC settings of stmpe_touchscreen (child) will take precedence
+over the settings done in MFD.
+
+Example:
+
+stmpe811@41 {
+	compatible = "st,stmpe811";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_touch_int>;
+	#address-cells = <1>;
+	#size-cells = <0>;
+	reg = <0x41>;
+	interrupts = <10 IRQ_TYPE_LEVEL_LOW>;
+	interrupt-parent = <&gpio4>;
+	interrupt-controller;
+	id = <0>;
+	blocks = <0x5>;
+	irq-trigger = <0x1>;
+	/* Common ADC settings */
+	/* 3.25 MHz ADC clock speed */
+	st,adc-freq = <1>;
+	/* 12-bit ADC */
+	st,mod-12b = <1>;
+	/* internal ADC reference */
+	st,ref-sel = <0>;
+	/* ADC converstion time: 80 clocks */
+	st,sample-time = <4>;
+
+	stmpe_touchscreen {
+		compatible = "st,stmpe-ts";
+		reg = <0>;
+		/* 8 sample average control */
+		st,ave-ctrl = <3>;
+		/* 5 ms touch detect interrupt delay */
+		st,touch-det-delay = <5>;
+		/* 1 ms panel driver settling time */
+		st,settling = <3>;
+		/* 7 length fractional part in z */
+		st,fraction-z = <7>;
+		/*
+		 * 50 mA typical 80 mA max touchscreen drivers
+		 * current limit value
+		 */
+		st,i-drive = <1>;
+	};
+	stmpe_adc {
+		compatible = "st,stmpe-adc";
+		st,norequest-mask = <0x0F>;
+	};
+};
diff --git a/Documentation/devicetree/bindings/input/touchscreen/sx8654.txt b/Documentation/devicetree/bindings/input/touchscreen/sx8654.txt
new file mode 100644
index 000000000..0ebe6dd04
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/sx8654.txt
@@ -0,0 +1,23 @@
+* Semtech SX8654 I2C Touchscreen Controller
+
+Required properties:
+- compatible: must be one of the following, depending on the model:
+	"semtech,sx8650"
+	"semtech,sx8654"
+	"semtech,sx8655"
+	"semtech,sx8656"
+- reg: i2c slave address
+- interrupts: touch controller interrupt
+
+Optional properties:
+ - reset-gpios: GPIO specification for the NRST input
+
+Example:
+
+	sx8654@48 {
+		compatible = "semtech,sx8654";
+		reg = <0x48>;
+		interrupt-parent = <&gpio6>;
+		interrupts = <3 IRQ_TYPE_EDGE_FALLING>;
+		reset-gpios = <&gpio4 2 GPIO_ACTIVE_LOW>;
+	};
diff --git a/Documentation/devicetree/bindings/input/touchscreen/ti-tsc-adc.txt b/Documentation/devicetree/bindings/input/touchscreen/ti-tsc-adc.txt
new file mode 100644
index 000000000..aad5e3496
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/ti-tsc-adc.txt
@@ -0,0 +1,91 @@
+* TI - TSC ADC (Touschscreen and analog digital converter)
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Required properties:
+- mfd
+	compatible: Should be
+		"ti,am3359-tscadc" for AM335x/AM437x SoCs
+		"ti,am654-tscadc", "ti,am3359-tscadc" for AM654 SoCs
+- child "tsc"
+	compatible: Should be "ti,am3359-tsc".
+	ti,wires: Wires refer to application modes i.e. 4/5/8 wire touchscreen
+		  support on the platform.
+	ti,x-plate-resistance: X plate resistance
+	ti,coordinate-readouts: The sequencer supports a total of 16
+				programmable steps each step is used to
+				read a single coordinate. A single
+                                readout is enough but multiple reads can
+				increase the quality.
+				A value of 5 means, 5 reads for X, 5 for
+				Y and 2 for Z (always). This utilises 12
+				of the 16 software steps available. The
+				remaining 4 can be used by the ADC.
+	ti,wire-config: Different boards could have a different order for
+			connecting wires on touchscreen. We need to provide an
+			8 bit number where in the 1st four bits represent the
+			analog lines and the next 4 bits represent positive/
+			negative terminal on that input line. Notations to
+			represent the input lines and terminals resoectively
+			is as follows:
+			AIN0 = 0, AIN1 = 1 and so on till AIN7 = 7.
+			XP  = 0, XN = 1, YP = 2, YN = 3.
+- child "adc"
+	compatible: Should be
+		    "ti,am3359-adc" for AM335x/AM437x SoCs
+		    "ti,am654-adc", "ti,am3359-adc" for AM654 SoCs
+	ti,adc-channels: List of analog inputs available for ADC.
+			 AIN0 = 0, AIN1 = 1 and so on till AIN7 = 7.
+
+Optional properties:
+- child "tsc"
+	ti,charge-delay: Length of touch screen charge delay step in terms of
+			 ADC clock cycles. Charge delay value should be large
+			 in order to avoid false pen-up events. This value
+			 effects the overall sampling speed, hence need to be
+			 kept as low as possible, while avoiding false pen-up
+			 event. Start from a lower value, say 0x400, and
+			 increase value until false pen-up events are avoided.
+			 The pen-up detection happens immediately after the
+			 charge step, so this does in fact function as a
+			 hardware knob for adjusting the amount of "settling
+			 time".
+
+- child "adc"
+	ti,chan-step-opendelay: List of open delays for each channel of
+				ADC in the order of ti,adc-channels. The
+				value corresponds to the number of ADC
+				clock cycles to wait after applying the
+				step configuration registers and before
+				sending the start of ADC conversion.
+				Maximum value is 0x3FFFF.
+       ti,chan-step-sampledelay: List of sample delays for each channel
+				  of ADC in the order of ti,adc-channels.
+				  The value corresponds to the number of
+				  ADC clock cycles to sample (to hold
+				  start of conversion high).
+				  Maximum value is 0xFF.
+       ti,chan-step-avg: Number of averages to be performed for each
+			  channel of ADC. If average is 16 then input
+			  is sampled 16 times and averaged to get more
+			  accurate value. This increases the time taken
+			  by ADC to generate a sample. Valid range is 0
+			  average to 16 averages. Maximum value is 16.
+
+Example:
+	tscadc: tscadc@44e0d000 {
+		compatible = "ti,am3359-tscadc";
+		tsc {
+			ti,wires = <4>;
+			ti,x-plate-resistance = <200>;
+			ti,coordiante-readouts = <5>;
+			ti,wire-config = <0x00 0x11 0x22 0x33>;
+			ti,charge-delay = <0x400>;
+		};
+
+		adc {
+			ti,adc-channels = <4 5 6 7>;
+			ti,chan-step-opendelay = <0x098 0x3ffff 0x098 0x0>;
+			ti,chan-step-sampledelay = <0xff 0x0 0xf 0x0>;
+			ti,chan-step-avg = <16 2 4 8>;
+		};
+	}
diff --git a/Documentation/devicetree/bindings/input/touchscreen/touchscreen.txt b/Documentation/devicetree/bindings/input/touchscreen/touchscreen.txt
new file mode 100644
index 000000000..e1adb902d
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/touchscreen.txt
@@ -0,0 +1 @@
+See touchscreen.yaml
diff --git a/Documentation/devicetree/bindings/input/touchscreen/touchscreen.yaml b/Documentation/devicetree/bindings/input/touchscreen/touchscreen.yaml
new file mode 100644
index 000000000..a771a15f0
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/touchscreen.yaml
@@ -0,0 +1,85 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/touchscreen/touchscreen.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Common touchscreen Bindings
+
+maintainers:
+  - Dmitry Torokhov <dmitry.torokhov@gmail.com>
+
+properties:
+  touchscreen-min-x:
+    description: minimum x coordinate reported
+    $ref: /schemas/types.yaml#/definitions/uint32
+    default: 0
+
+  touchscreen-min-y:
+    description: minimum y coordinate reported
+    $ref: /schemas/types.yaml#/definitions/uint32
+    default: 0
+
+  touchscreen-size-x:
+    description: horizontal resolution of touchscreen (maximum x coordinate reported + 1)
+    $ref: /schemas/types.yaml#/definitions/uint32
+
+  touchscreen-size-y:
+    description: vertical resolution of touchscreen (maximum y coordinate reported + 1)
+    $ref: /schemas/types.yaml#/definitions/uint32
+
+  touchscreen-max-pressure:
+    description: maximum reported pressure (arbitrary range dependent on the controller)
+    $ref: /schemas/types.yaml#/definitions/uint32
+
+  touchscreen-min-pressure:
+    description: minimum pressure on the touchscreen to be achieved in order
+      for the touchscreen driver to report a touch event.
+    $ref: /schemas/types.yaml#/definitions/uint32
+
+  touchscreen-fuzz-x:
+    description: horizontal noise value of the absolute input device (in pixels)
+    $ref: /schemas/types.yaml#/definitions/uint32
+
+  touchscreen-fuzz-y:
+    description: vertical noise value of the absolute input device (in pixels)
+    $ref: /schemas/types.yaml#/definitions/uint32
+
+  touchscreen-fuzz-pressure:
+    description: pressure noise value of the absolute input device (arbitrary
+      range dependent on the controller)
+    $ref: /schemas/types.yaml#/definitions/uint32
+
+  touchscreen-average-samples:
+    description: Number of data samples which are averaged for each read (valid
+      values dependent on the controller)
+    $ref: /schemas/types.yaml#/definitions/uint32
+
+  touchscreen-inverted-x:
+    description: X axis is inverted
+    type: boolean
+
+  touchscreen-inverted-y:
+    description: Y axis is inverted
+    type: boolean
+
+  touchscreen-swapped-x-y:
+    description: X and Y axis are swapped
+                 Swapping is done after inverting the axis
+    type: boolean
+
+  touchscreen-x-mm:
+    description: horizontal length in mm of the touchscreen
+    $ref: /schemas/types.yaml#/definitions/uint32
+
+  touchscreen-y-mm:
+    description: vertical length in mm of the touchscreen
+    $ref: /schemas/types.yaml#/definitions/uint32
+
+dependencies:
+  touchscreen-size-x: [ touchscreen-size-y ]
+  touchscreen-size-y: [ touchscreen-size-x ]
+  touchscreen-x-mm: [ touchscreen-y-mm ]
+  touchscreen-y-mm: [ touchscreen-x-mm ]
+
+additionalProperties: true
diff --git a/Documentation/devicetree/bindings/input/touchscreen/ts4800-ts.txt b/Documentation/devicetree/bindings/input/touchscreen/ts4800-ts.txt
new file mode 100644
index 000000000..4c1c092c2
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/ts4800-ts.txt
@@ -0,0 +1,11 @@
+* TS-4800 Touchscreen bindings
+
+Required properties:
+- compatible: must be "technologic,ts4800-ts"
+- reg: physical base address of the controller and length of memory mapped
+  region.
+- syscon: phandle / integers array that points to the syscon node which
+          describes the FPGA's syscon registers.
+          - phandle to FPGA's syscon
+          - offset to the touchscreen register
+          - offset to the touchscreen enable bit
diff --git a/Documentation/devicetree/bindings/input/touchscreen/tsc2005.txt b/Documentation/devicetree/bindings/input/touchscreen/tsc2005.txt
new file mode 100644
index 000000000..b80c04b0e
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/tsc2005.txt
@@ -0,0 +1,64 @@
+* Texas Instruments tsc2004 and tsc2005 touchscreen controllers
+
+Required properties:
+ - compatible		      : "ti,tsc2004" or "ti,tsc2005"
+ - reg			      : Device address
+ - interrupts		      : IRQ specifier
+ - spi-max-frequency	      : Maximum SPI clocking speed of the device
+			        (for tsc2005)
+
+Optional properties:
+ - vio-supply		      : Regulator specifier
+ - reset-gpios		      : GPIO specifier for the controller reset line
+ - 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:
+
+&i2c3 {
+	tsc2004@48 {
+		compatible = "ti,tsc2004";
+		reg = <0x48>;
+		vio-supply = <&vio>;
+
+		reset-gpios = <&gpio4 8 GPIO_ACTIVE_HIGH>;
+		interrupts-extended = <&gpio1 27 IRQ_TYPE_EDGE_RISING>;
+
+		touchscreen-fuzz-x = <4>;
+		touchscreen-fuzz-y = <7>;
+		touchscreen-fuzz-pressure = <2>;
+		touchscreen-size-x = <4096>;
+		touchscreen-size-y = <4096>;
+		touchscreen-max-pressure = <2048>;
+
+		ti,x-plate-ohms = <280>;
+		ti,esd-recovery-timeout-ms = <8000>;
+	};
+}
+
+&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-size-x = <4096>;
+		touchscreen-size-y = <4096>;
+		touchscreen-max-pressure = <2048>;
+
+		ti,x-plate-ohms = <280>;
+		ti,esd-recovery-timeout-ms = <8000>;
+	};
+}
diff --git a/Documentation/devicetree/bindings/input/touchscreen/tsc2007.txt b/Documentation/devicetree/bindings/input/touchscreen/tsc2007.txt
new file mode 100644
index 000000000..ed00f61b8
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/tsc2007.txt
@@ -0,0 +1,39 @@
+* Texas Instruments tsc2007 touchscreen controller
+
+Required properties:
+- compatible: must be "ti,tsc2007".
+- reg: I2C address of the chip.
+- ti,x-plate-ohms: X-plate resistance in ohms.
+
+Optional properties:
+- gpios: the interrupt gpio the chip is connected to (trough the penirq pin).
+  The penirq pin goes to low when the panel is touched.
+  (see GPIO binding[1] for more details).
+- interrupts: (gpio) interrupt to which the chip is connected
+  (see interrupt binding[0]).
+- ti,max-rt: maximum pressure.
+- ti,fuzzx: specifies the absolute input fuzz x value.
+  If set, it will permit noise in the data up to +- the value given to the fuzz
+  parameter, that is used to filter noise from the event stream.
+- ti,fuzzy: specifies the absolute input fuzz y value.
+- ti,fuzzz: specifies the absolute input fuzz z value.
+- ti,poll-period: how much time to wait (in milliseconds) before reading again the
+  values from the tsc2007.
+
+[0]: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
+[1]: Documentation/devicetree/bindings/gpio/gpio.txt
+
+Example:
+	&i2c1 {
+		/* ... */
+		tsc2007@49 {
+			compatible = "ti,tsc2007";
+			reg = <0x49>;
+			interrupt-parent = <&gpio4>;
+			interrupts = <0x0 0x8>;
+			gpios = <&gpio4 0 0>;
+			ti,x-plate-ohms = <180>;
+		};
+
+		/* ... */
+	};
diff --git a/Documentation/devicetree/bindings/input/touchscreen/zet6223.txt b/Documentation/devicetree/bindings/input/touchscreen/zet6223.txt
new file mode 100644
index 000000000..27d55a506
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/zet6223.txt
@@ -0,0 +1,30 @@
+Zeitec ZET6223 I2C touchscreen controller
+
+Required properties:
+- compatible		  : "zeitec,zet6223"
+- reg			  : I2C slave address of the chip (0x76)
+- interrupts		  : interrupt specification for the zet6223 interrupt
+
+Optional properties:
+
+- vio-supply		  : Specification for VIO supply (1.8V or 3.3V,
+			    depending on system interface needs).
+- vcc-supply		  : Specification for 3.3V VCC supply.
+- touchscreen-size-x	  : See touchscreen.txt
+- touchscreen-size-y	  : See touchscreen.txt
+- touchscreen-inverted-x  : See touchscreen.txt
+- touchscreen-inverted-y  : See touchscreen.txt
+- touchscreen-swapped-x-y : See touchscreen.txt
+
+Example:
+
+i2c@00000000 {
+
+	zet6223: touchscreen@76 {
+		compatible = "zeitec,zet6223";
+		reg = <0x76>;
+		interrupt-parent = <&pio>;
+		interrupts = <6 11 IRQ_TYPE_EDGE_FALLING>
+	};
+
+};
diff --git a/Documentation/devicetree/bindings/input/touchscreen/zforce_ts.txt b/Documentation/devicetree/bindings/input/touchscreen/zforce_ts.txt
new file mode 100644
index 000000000..e3c27c4fd
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/zforce_ts.txt
@@ -0,0 +1,34 @@
+* Neonode infrared touchscreen controller
+
+Required properties:
+- compatible: must be "neonode,zforce"
+- reg: I2C address of the chip
+- interrupts: interrupt to which the chip is connected
+- reset-gpios: reset gpio the chip is connected to
+- x-size: horizontal resolution of touchscreen
+- y-size: vertical resolution of touchscreen
+
+Optional properties:
+- irq-gpios : interrupt gpio the chip is connected to
+- vdd-supply: Regulator controlling the controller supply
+
+Example:
+
+	i2c@00000000 {
+		/* ... */
+
+		zforce_ts@50 {
+			compatible = "neonode,zforce";
+			reg = <0x50>;
+			interrupts = <2 0>;
+			vdd-supply = <&reg_zforce_vdd>;
+
+			reset-gpios = <&gpio5 9 0>; /* RST */
+			irq-gpios = <&gpio5 6 0>; /* IRQ, optional */
+
+			x-size = <800>;
+			y-size = <600>;
+		};
+
+		/* ... */
+	};
diff --git a/Documentation/devicetree/bindings/input/touchscreen/zinitix.txt b/Documentation/devicetree/bindings/input/touchscreen/zinitix.txt
new file mode 100644
index 000000000..446efb9f5
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/zinitix.txt
@@ -0,0 +1,40 @@
+Device tree bindings for Zinitx BT541 touchscreen controller
+
+Required properties:
+
+ - compatible		: Should be "zinitix,bt541"
+ - reg			: I2C address of the chip. Should be 0x20
+ - interrupts		: Interrupt to which the chip is connected
+
+Optional properties:
+
+ - vdd-supply		: Analog power supply regulator on VCCA pin
+ - vddo-supply		: Digital power supply regulator on VDD pin
+ - zinitix,mode		: Mode of reporting touch points. Some modes may not work
+			  with a particular ts firmware for unknown reasons. Available
+			  modes are 1 and 2. Mode 2 is the default and preferred.
+
+The touchscreen-* properties are documented in touchscreen.txt in this
+directory.
+
+Example:
+
+	i2c@00000000 {
+		/* ... */
+
+		bt541@20 {
+			compatible = "zinitix,bt541";
+			reg = <0x20>;
+			interrupt-parent = <&msmgpio>;
+			interrupts = <13 IRQ_TYPE_EDGE_FALLING>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&tsp_default>;
+			vdd-supply = <&reg_vdd_tsp>;
+			vddo-supply = <&pm8916_l6>;
+			touchscreen-size-x = <540>;
+			touchscreen-size-y = <960>;
+			zinitix,mode = <2>;
+		};
+
+		/* ... */
+	};