Squashed 'dts/upstream/' content from commit aaba2d45dc2a
git-subtree-dir: dts/upstream
git-subtree-split: aaba2d45dc2a1b3bbb710f2a3808ee1c9f340abe
diff --git a/Bindings/input/touchscreen/ad7879.txt b/Bindings/input/touchscreen/ad7879.txt
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--- /dev/null
+++ b/Bindings/input/touchscreen/ad7879.txt
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+* 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/Bindings/input/touchscreen/ads7846.txt b/Bindings/input/touchscreen/ads7846.txt
new file mode 100644
index 0000000..81f6bda
--- /dev/null
+++ b/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 = <®_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/Bindings/input/touchscreen/ar1021.txt b/Bindings/input/touchscreen/ar1021.txt
new file mode 100644
index 0000000..82019bd
--- /dev/null
+++ b/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/Bindings/input/touchscreen/auo_pixcir_ts.txt b/Bindings/input/touchscreen/auo_pixcir_ts.txt
new file mode 100644
index 0000000..b8db975
--- /dev/null
+++ b/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 IRQ_TYPE_LEVEL_HIGH>;
+
+ gpios = <&gpf 2 0 GPIO_LEVEL_HIGH>, /* INT */
+ <&gpf 5 1 GPIO_LEVEL_LOW>; /* RST */
+
+ x-size = <800>;
+ y-size = <600>;
+ };
+
+ /* ... */
+ };
diff --git a/Bindings/input/touchscreen/azoteq,iqs5xx.yaml b/Bindings/input/touchscreen/azoteq,iqs5xx.yaml
new file mode 100644
index 0000000..b5f3772
--- /dev/null
+++ b/Bindings/input/touchscreen/azoteq,iqs5xx.yaml
@@ -0,0 +1,75 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/touchscreen/azoteq,iqs5xx.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Azoteq IQS550/572/525 Trackpad/Touchscreen Controller
+
+maintainers:
+ - Jeff LaBundy <jeff@labundy.com>
+
+description: |
+ The Azoteq IQS550, IQS572 and IQS525 trackpad and touchscreen controllers
+ employ projected-capacitance sensing and can track up to five independent
+ contacts.
+
+ Link to datasheet: https://www.azoteq.com/
+
+allOf:
+ - $ref: touchscreen.yaml#
+
+properties:
+ compatible:
+ enum:
+ - azoteq,iqs550
+ - azoteq,iqs572
+ - azoteq,iqs525
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ reset-gpios:
+ maxItems: 1
+
+ wakeup-source: true
+
+ touchscreen-size-x: true
+ touchscreen-size-y: true
+ touchscreen-inverted-x: true
+ touchscreen-inverted-y: true
+ touchscreen-swapped-x-y: true
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ touchscreen@74 {
+ compatible = "azoteq,iqs550";
+ reg = <0x74>;
+ interrupt-parent = <&gpio>;
+ interrupts = <27 IRQ_TYPE_LEVEL_HIGH>;
+ reset-gpios = <&gpio 22 (GPIO_ACTIVE_LOW |
+ GPIO_PUSH_PULL)>;
+
+ touchscreen-size-x = <800>;
+ touchscreen-size-y = <480>;
+ };
+ };
+
+...
diff --git a/Bindings/input/touchscreen/azoteq,iqs7211.yaml b/Bindings/input/touchscreen/azoteq,iqs7211.yaml
new file mode 100644
index 0000000..8cf371b
--- /dev/null
+++ b/Bindings/input/touchscreen/azoteq,iqs7211.yaml
@@ -0,0 +1,769 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/touchscreen/azoteq,iqs7211.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Azoteq IQS7210A/7211A/E Trackpad/Touchscreen Controller
+
+maintainers:
+ - Jeff LaBundy <jeff@labundy.com>
+
+description: |
+ The Azoteq IQS7210A, IQS7211A and IQS7211E trackpad and touchscreen control-
+ lers employ projected-capacitance sensing and can track two contacts.
+
+ Link to datasheets: https://www.azoteq.com/
+
+properties:
+ compatible:
+ enum:
+ - azoteq,iqs7210a
+ - azoteq,iqs7211a
+ - azoteq,iqs7211e
+
+ reg:
+ maxItems: 1
+
+ irq-gpios:
+ maxItems: 1
+ description:
+ Specifies the GPIO connected to the device's active-low RDY output. The
+ pin doubles as the IQS7211E's active-low MCLR input, in which case this
+ GPIO must be configured as open-drain.
+
+ reset-gpios:
+ maxItems: 1
+ description:
+ Specifies the GPIO connected to the device's active-low MCLR input. The
+ device is temporarily held in hardware reset prior to initialization if
+ this property is present.
+
+ azoteq,forced-comms:
+ type: boolean
+ description:
+ Enables forced communication; to be used with host adapters that cannot
+ tolerate clock stretching.
+
+ azoteq,forced-comms-default:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [0, 1]
+ description:
+ Indicates if the device's OTP memory enables (1) or disables (0) forced
+ communication by default. Specifying this property can expedite startup
+ time if the default value is known.
+
+ If this property is not specified, communication is not initiated until
+ the device asserts its RDY pin shortly after exiting hardware reset. At
+ that point, forced communication is either enabled or disabled based on
+ the presence or absence of the 'azoteq,forced-comms' property.
+
+ azoteq,rate-active-ms:
+ minimum: 0
+ maximum: 65535
+ description: Specifies the report rate (in ms) during active mode.
+
+ azoteq,rate-touch-ms:
+ minimum: 0
+ maximum: 65535
+ description: Specifies the report rate (in ms) during idle-touch mode.
+
+ azoteq,rate-idle-ms:
+ minimum: 0
+ maximum: 65535
+ description: Specifies the report rate (in ms) during idle mode.
+
+ azoteq,rate-lp1-ms:
+ minimum: 0
+ maximum: 65535
+ description: Specifies the report rate (in ms) during low-power mode 1.
+
+ azoteq,rate-lp2-ms:
+ minimum: 0
+ maximum: 65535
+ description: Specifies the report rate (in ms) during low-power mode 2.
+
+ azoteq,timeout-active-ms:
+ multipleOf: 1000
+ minimum: 0
+ maximum: 65535000
+ description:
+ Specifies the length of time (in ms) to wait for an event before moving
+ from active mode to idle or idle-touch modes.
+
+ azoteq,timeout-touch-ms:
+ multipleOf: 1000
+ minimum: 0
+ maximum: 65535000
+ description:
+ Specifies the length of time (in ms) to wait for an event before moving
+ from idle-touch mode to idle mode.
+
+ azoteq,timeout-idle-ms:
+ multipleOf: 1000
+ minimum: 0
+ maximum: 65535000
+ description:
+ Specifies the length of time (in ms) to wait for an event before moving
+ from idle mode to low-power mode 1.
+
+ azoteq,timeout-lp1-ms:
+ multipleOf: 1000
+ minimum: 0
+ maximum: 65535000
+ description:
+ Specifies the length of time (in ms) to wait for an event before moving
+ from low-power mode 1 to low-power mode 2.
+
+ azoteq,timeout-lp2-ms:
+ multipleOf: 1000
+ minimum: 0
+ maximum: 60000
+ description:
+ Specifies the rate (in ms) at which the trackpad reference values
+ are updated during low-power modes 1 and 2.
+
+ azoteq,timeout-ati-ms:
+ multipleOf: 1000
+ minimum: 0
+ maximum: 60000
+ description:
+ Specifies the delay (in ms) before the automatic tuning implementation
+ (ATI) is retried in the event it fails to complete.
+
+ azoteq,timeout-comms-ms:
+ minimum: 0
+ maximum: 65535
+ description:
+ Specifies the delay (in ms) before a communication window is closed.
+
+ azoteq,timeout-press-ms:
+ multipleOf: 1000
+ minimum: 0
+ maximum: 60000
+ description:
+ Specifies the length of time (in ms) to wait before automatically
+ releasing a press event. Specify zero to allow the press state to
+ persist indefinitely.
+
+ azoteq,fosc-freq:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [0, 1]
+ description: |
+ Specifies the device's core clock frequency as follows:
+ 0: 14 MHz
+ 1: 18 MHz
+
+ azoteq,fosc-trim:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 15
+ description: Specifies the device's core clock frequency trim.
+
+ azoteq,num-contacts:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 2
+ default: 0
+ description: Specifies the number of contacts reported by the device.
+
+ azoteq,contact-split:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 255
+ description: Specifies the contact (finger) split factor.
+
+ azoteq,trim-x:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 255
+ description: Specifies the horizontal trim width.
+
+ azoteq,trim-y:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 255
+ description: Specifies the vertical trim height.
+
+ trackpad:
+ type: object
+ description: Represents all channels associated with the trackpad.
+
+ properties:
+ azoteq,rx-enable:
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ minItems: 1
+ maxItems: 8
+ items:
+ minimum: 0
+ maximum: 7
+ description:
+ Specifies the order of the CRx pin(s) associated with the trackpad.
+
+ azoteq,tx-enable:
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ minItems: 1
+ maxItems: 12
+ items:
+ minimum: 0
+ maximum: 11
+ description:
+ Specifies the order of the CTx pin(s) associated with the trackpad.
+
+ azoteq,channel-select:
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ minItems: 1
+ maxItems: 36
+ items:
+ minimum: 0
+ maximum: 255
+ description: |
+ Specifies the channels mapped to each cycle in the following order:
+ Cycle 0, slot 0
+ Cycle 0, slot 1
+ Cycle 1, slot 0
+ Cycle 1, slot 1
+ ...and so on. Specify 255 to disable a given slot.
+
+ azoteq,ati-frac-div-fine:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 31
+ description: Specifies the trackpad's ATI fine fractional divider.
+
+ azoteq,ati-frac-mult-coarse:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 15
+ description: Specifies the trackpad's ATI coarse fractional multiplier.
+
+ azoteq,ati-frac-div-coarse:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 31
+ description: Specifies the trackpad's ATI coarse fractional divider.
+
+ azoteq,ati-comp-div:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 31
+ description: Specifies the trackpad's ATI compensation divider.
+
+ azoteq,ati-target:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 65535
+ description: Specifies the trackpad's ATI target.
+
+ azoteq,touch-enter:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 255
+ description: Specifies the trackpad's touch entrance factor.
+
+ azoteq,touch-exit:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 255
+ description: Specifies the trackpad's touch exit factor.
+
+ azoteq,thresh:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 255
+ description: Specifies the trackpad's stationary touch threshold.
+
+ azoteq,conv-period:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 255
+ description: Specifies the trackpad's conversion period.
+
+ azoteq,conv-frac:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 255
+ description: Specifies the trackpad's conversion frequency fraction.
+
+ patternProperties:
+ "^event-(tap(-double|-triple)?|hold|palm|swipe-(x|y)-(pos|neg)(-hold)?)$":
+ type: object
+ $ref: ../input.yaml#
+ description:
+ Represents a gesture event reported by the trackpad. In the case of
+ axial gestures, the duration or distance specified in one direction
+ applies to both directions along the same axis.
+
+ properties:
+ linux,code: true
+
+ azoteq,gesture-max-ms:
+ minimum: 0
+ maximum: 65535
+ description: Specifies the maximum duration of tap/swipe gestures.
+
+ azoteq,gesture-mid-ms:
+ minimum: 0
+ maximum: 65535
+ description:
+ Specifies the maximum duration between subsequent tap gestures
+ (IQS7211E only).
+
+ azoteq,gesture-min-ms:
+ minimum: 0
+ maximum: 65535
+ description: Specifies the minimum duration of hold gestures.
+
+ azoteq,gesture-dist:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 65535
+ description:
+ Specifies the minimum (swipe) or maximum (tap and hold) distance
+ a finger may travel to be considered a gesture.
+
+ azoteq,gesture-dist-rep:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 65535
+ description:
+ Specifies the minimum distance a finger must travel to elicit a
+ repeated swipe gesture (IQS7211E only).
+
+ azoteq,gesture-angle:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 75
+ description:
+ Specifies the maximum angle (in degrees) a finger may travel to
+ be considered a swipe gesture.
+
+ azoteq,thresh:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 42
+ description: Specifies the palm gesture threshold (IQS7211E only).
+
+ additionalProperties: false
+
+ dependencies:
+ azoteq,rx-enable: ["azoteq,tx-enable"]
+ azoteq,tx-enable: ["azoteq,rx-enable"]
+ azoteq,channel-select: ["azoteq,rx-enable"]
+
+ additionalProperties: false
+
+ alp:
+ type: object
+ $ref: ../input.yaml#
+ description: Represents the alternate low-power channel (ALP).
+
+ properties:
+ azoteq,rx-enable:
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ minItems: 1
+ maxItems: 8
+ items:
+ minimum: 0
+ maximum: 7
+ description:
+ Specifies the CRx pin(s) associated with the ALP in no particular
+ order.
+
+ azoteq,tx-enable:
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ minItems: 1
+ maxItems: 12
+ items:
+ minimum: 0
+ maximum: 11
+ description:
+ Specifies the CTx pin(s) associated with the ALP in no particular
+ order.
+
+ azoteq,ati-frac-div-fine:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 31
+ description: Specifies the ALP's ATI fine fractional divider.
+
+ azoteq,ati-frac-mult-coarse:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 15
+ description: Specifies the ALP's ATI coarse fractional multiplier.
+
+ azoteq,ati-frac-div-coarse:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 31
+ description: Specifies the ALP's ATI coarse fractional divider.
+
+ azoteq,ati-comp-div:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 31
+ description: Specifies the ALP's ATI compensation divider.
+
+ azoteq,ati-target:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 65535
+ description: Specifies the ALP's ATI target.
+
+ azoteq,ati-base:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ multipleOf: 8
+ minimum: 0
+ maximum: 255
+ description: Specifies the ALP's ATI base.
+
+ azoteq,ati-mode:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [0, 1]
+ description: |
+ Specifies the ALP's ATI mode as follows:
+ 0: Partial
+ 1: Full
+
+ azoteq,sense-mode:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [0, 1]
+ description: |
+ Specifies the ALP's sensing mode as follows:
+ 0: Self capacitive
+ 1: Mutual capacitive
+
+ azoteq,debounce-enter:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 255
+ description: Specifies the ALP's debounce entrance factor.
+
+ azoteq,debounce-exit:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 255
+ description: Specifies the ALP's debounce exit factor.
+
+ azoteq,thresh:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 65535
+ description: Specifies the ALP's proximity or touch threshold.
+
+ azoteq,conv-period:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 255
+ description: Specifies the ALP's conversion period.
+
+ azoteq,conv-frac:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 255
+ description: Specifies the ALP's conversion frequency fraction.
+
+ linux,code: true
+
+ additionalProperties: false
+
+ button:
+ type: object
+ description: Represents the inductive or capacitive button.
+
+ properties:
+ azoteq,ati-frac-div-fine:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 31
+ description: Specifies the button's ATI fine fractional divider.
+
+ azoteq,ati-frac-mult-coarse:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 15
+ description: Specifies the button's ATI coarse fractional multiplier.
+
+ azoteq,ati-frac-div-coarse:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 31
+ description: Specifies the button's ATI coarse fractional divider.
+
+ azoteq,ati-comp-div:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 31
+ description: Specifies the button's ATI compensation divider.
+
+ azoteq,ati-target:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 65535
+ description: Specifies the button's ATI target.
+
+ azoteq,ati-base:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ multipleOf: 8
+ minimum: 0
+ maximum: 255
+ description: Specifies the button's ATI base.
+
+ azoteq,ati-mode:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [0, 1]
+ description: |
+ Specifies the button's ATI mode as follows:
+ 0: Partial
+ 1: Full
+
+ azoteq,sense-mode:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [0, 1, 2]
+ description: |
+ Specifies the button's sensing mode as follows:
+ 0: Self capacitive
+ 1: Mutual capacitive
+ 2: Inductive
+
+ azoteq,touch-enter:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 255
+ description: Specifies the button's touch entrance factor.
+
+ azoteq,touch-exit:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 255
+ description: Specifies the button's touch exit factor.
+
+ azoteq,debounce-enter:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 255
+ description: Specifies the button's debounce entrance factor.
+
+ azoteq,debounce-exit:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 255
+ description: Specifies the button's debounce exit factor.
+
+ azoteq,thresh:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 65535
+ description: Specifies the button's proximity threshold.
+
+ azoteq,conv-period:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 255
+ description: Specifies the button's conversion period.
+
+ azoteq,conv-frac:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 255
+ description: Specifies the button's conversion frequency fraction.
+
+ patternProperties:
+ "^event-(prox|touch)$":
+ type: object
+ $ref: ../input.yaml#
+ description:
+ Represents a proximity or touch event reported by the button.
+
+ properties:
+ linux,code: true
+
+ additionalProperties: false
+
+ additionalProperties: false
+
+ wakeup-source: true
+
+ touchscreen-size-x: true
+ touchscreen-size-y: true
+ touchscreen-inverted-x: true
+ touchscreen-inverted-y: true
+ touchscreen-swapped-x-y: true
+
+dependencies:
+ touchscreen-size-x: ["azoteq,num-contacts"]
+ touchscreen-size-y: ["azoteq,num-contacts"]
+ touchscreen-inverted-x: ["azoteq,num-contacts"]
+ touchscreen-inverted-y: ["azoteq,num-contacts"]
+ touchscreen-swapped-x-y: ["azoteq,num-contacts"]
+
+required:
+ - compatible
+ - reg
+ - irq-gpios
+
+additionalProperties: false
+
+allOf:
+ - $ref: touchscreen.yaml#
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: azoteq,iqs7210a
+
+ then:
+ properties:
+ alp:
+ properties:
+ azoteq,rx-enable:
+ maxItems: 4
+ items:
+ minimum: 4
+
+ else:
+ properties:
+ azoteq,timeout-press-ms: false
+
+ alp:
+ properties:
+ azoteq,ati-mode: false
+
+ button: false
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: azoteq,iqs7211e
+
+ then:
+ properties:
+ reset-gpios: false
+
+ trackpad:
+ properties:
+ azoteq,tx-enable:
+ maxItems: 13
+ items:
+ maximum: 12
+
+ alp:
+ properties:
+ azoteq,tx-enable:
+ maxItems: 13
+ items:
+ maximum: 12
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/input/input.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ touch@56 {
+ compatible = "azoteq,iqs7210a";
+ reg = <0x56>;
+ irq-gpios = <&gpio 4 GPIO_ACTIVE_LOW>;
+ reset-gpios = <&gpio 17 (GPIO_ACTIVE_LOW |
+ GPIO_PUSH_PULL)>;
+ azoteq,num-contacts = <2>;
+
+ trackpad {
+ azoteq,rx-enable = <6>, <5>, <4>, <3>, <2>;
+ azoteq,tx-enable = <1>, <7>, <8>, <9>, <10>;
+ };
+
+ button {
+ azoteq,sense-mode = <2>;
+ azoteq,touch-enter = <40>;
+ azoteq,touch-exit = <36>;
+
+ event-touch {
+ linux,code = <KEY_HOME>;
+ };
+ };
+
+ alp {
+ azoteq,sense-mode = <1>;
+ linux,code = <KEY_POWER>;
+ };
+ };
+ };
+
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/input/input.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ touch@56 {
+ compatible = "azoteq,iqs7211e";
+ reg = <0x56>;
+ irq-gpios = <&gpio 4 (GPIO_ACTIVE_LOW |
+ GPIO_OPEN_DRAIN)>;
+
+ trackpad {
+ event-tap {
+ linux,code = <KEY_PLAYPAUSE>;
+ };
+
+ event-tap-double {
+ linux,code = <KEY_SHUFFLE>;
+ };
+
+ event-tap-triple {
+ linux,code = <KEY_AGAIN>;
+ };
+
+ event-hold {
+ linux,code = <KEY_STOP>;
+ };
+
+ event-palm {
+ linux,code = <KEY_EXIT>;
+ };
+
+ event-swipe-x-pos {
+ linux,code = <KEY_REWIND>;
+ };
+
+ event-swipe-x-pos-hold {
+ linux,code = <KEY_PREVIOUS>;
+ };
+
+ event-swipe-x-neg {
+ linux,code = <KEY_FASTFORWARD>;
+ };
+
+ event-swipe-x-neg-hold {
+ linux,code = <KEY_NEXT>;
+ };
+
+ event-swipe-y-pos {
+ linux,code = <KEY_VOLUMEUP>;
+ };
+
+ event-swipe-y-pos-hold {
+ linux,code = <KEY_MUTE>;
+ };
+
+ event-swipe-y-neg {
+ linux,code = <KEY_VOLUMEDOWN>;
+ };
+
+ event-swipe-y-neg-hold {
+ linux,code = <KEY_MUTE>;
+ };
+ };
+ };
+ };
+
+...
diff --git a/Bindings/input/touchscreen/brcm,iproc-touchscreen.txt b/Bindings/input/touchscreen/brcm,iproc-touchscreen.txt
new file mode 100644
index 0000000..f127a21
--- /dev/null
+++ b/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/Bindings/input/touchscreen/bu21013.txt b/Bindings/input/touchscreen/bu21013.txt
new file mode 100644
index 0000000..da4c9d8
--- /dev/null
+++ b/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/Bindings/input/touchscreen/bu21029.txt b/Bindings/input/touchscreen/bu21029.txt
new file mode 100644
index 0000000..8daa0e8
--- /dev/null
+++ b/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/Bindings/input/touchscreen/chipone,icn8318.yaml b/Bindings/input/touchscreen/chipone,icn8318.yaml
new file mode 100644
index 0000000..74a8a01
--- /dev/null
+++ b/Bindings/input/touchscreen/chipone,icn8318.yaml
@@ -0,0 +1,62 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/touchscreen/chipone,icn8318.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ChipOne ICN8318 Touchscreen Controller
+
+maintainers:
+ - Dmitry Torokhov <dmitry.torokhov@gmail.com>
+
+allOf:
+ - $ref: touchscreen.yaml#
+
+properties:
+ compatible:
+ const: chipone,icn8318
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ wake-gpios:
+ maxItems: 1
+
+unevaluatedProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - wake-gpios
+ - touchscreen-size-x
+ - touchscreen-size-y
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ touchscreen@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/Bindings/input/touchscreen/colibri-vf50-ts.txt b/Bindings/input/touchscreen/colibri-vf50-ts.txt
new file mode 100644
index 0000000..ca30435
--- /dev/null
+++ b/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
+ IIO ADC for Y-, X-, Y+, X+ connections
+- 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, signal from X plate
+- pinctrl-names: "idle", "default"
+- pinctrl-0: pinctrl node for pen/touch detection, pinctrl must provide
+ pull-up resistor on X+, X-.
+- pinctrl-1: pinctrl node for X/Y and pressure measurement (ADC) state pinmux
+- 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";
+ pinctrl-0 = <&pinctrl_touchctrl_idle>, <&pinctrl_touchctrl_gpios>;
+ pinctrl-1 = <&pinctrl_touchctrl_default>, <&pinctrl_touchctrl_gpios>;
+ vf50-ts-min-pressure = <200>;
+ };
diff --git a/Bindings/input/touchscreen/cypress,cy8ctma140.yaml b/Bindings/input/touchscreen/cypress,cy8ctma140.yaml
new file mode 100644
index 0000000..86a6d18
--- /dev/null
+++ b/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
+
+maintainers:
+ - Linus Walleij <linus.walleij@linaro.org>
+
+allOf:
+ - $ref: touchscreen.yaml#
+
+properties:
+ compatible:
+ const: cypress,cy8ctma140
+
+ reg:
+ const: 0x20
+
+ clock-frequency:
+ description: I2C client clock frequency, defined for host
+ minimum: 100000
+ maximum: 400000
+
+ interrupts:
+ maxItems: 1
+
+ vcpin-supply:
+ description: Analog power supply regulator on VCPIN pin
+
+ vdd-supply:
+ description: Digital power supply regulator on VDD pin
+
+ touchscreen-inverted-x: true
+ touchscreen-inverted-y: true
+ touchscreen-size-x: true
+ touchscreen-size-y: true
+ touchscreen-swapped-x-y: true
+ touchscreen-max-pressure: true
+
+additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - touchscreen-size-x
+ - touchscreen-size-y
+ - touchscreen-max-pressure
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ touchscreen@20 {
+ compatible = "cypress,cy8ctma140";
+ reg = <0x20>;
+ touchscreen-size-x = <480>;
+ touchscreen-size-y = <800>;
+ touchscreen-max-pressure = <255>;
+ interrupt-parent = <&gpio6>;
+ interrupts = <26 IRQ_TYPE_EDGE_FALLING>;
+ vdd-supply = <&ab8500_ldo_aux2_reg>;
+ vcpin-supply = <&ab8500_ldo_aux2_reg>;
+ };
+ };
+
+...
diff --git a/Bindings/input/touchscreen/cypress,cy8ctma340.yaml b/Bindings/input/touchscreen/cypress,cy8ctma340.yaml
new file mode 100644
index 0000000..4dfbb93
--- /dev/null
+++ b/Bindings/input/touchscreen/cypress,cy8ctma340.yaml
@@ -0,0 +1,148 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/touchscreen/cypress,cy8ctma340.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cypress CY8CTMA340 series touchscreen controller
+
+description: The Cypress CY8CTMA340 series (also known as "CYTTSP" after
+ the marketing name Cypress TrueTouch Standard Product) touchscreens can
+ be connected to either I2C or SPI buses.
+
+maintainers:
+ - Javier Martinez Canillas <javier@dowhile0.org>
+ - Linus Walleij <linus.walleij@linaro.org>
+
+allOf:
+ - $ref: touchscreen.yaml#
+
+properties:
+ $nodename:
+ pattern: "^touchscreen(@.*)?$"
+
+ compatible:
+ oneOf:
+ - const: cypress,cy8ctma340
+ - const: cypress,cy8ctst341
+ - const: cypress,cyttsp-spi
+ description: Legacy compatible for SPI connected CY8CTMA340
+ deprecated: true
+ - const: cypress,cyttsp-i2c
+ description: Legacy compatible for I2C connected CY8CTMA340
+ deprecated: true
+
+ reg:
+ description: I2C address when used on the I2C bus, or the SPI chip
+ select index when used on the SPI bus
+
+ clock-frequency:
+ description: I2C client clock frequency, defined for host when using
+ the device on the I2C bus
+ minimum: 0
+ maximum: 400000
+
+ spi-max-frequency:
+ description: SPI clock frequency, defined for host, defined when using
+ the device on the SPI bus. The throughput is maximum 2 Mbps so the
+ typical value is 2000000, if higher rates are used the total throughput
+ needs to be restricted to 2 Mbps.
+ minimum: 0
+ maximum: 6000000
+
+ interrupts:
+ description: Interrupt to host
+ maxItems: 1
+
+ vcpin-supply:
+ description: Analog power supply regulator on VCPIN pin
+
+ vdd-supply:
+ description: Digital power supply regulator on VDD pin
+
+ reset-gpios:
+ description: Reset line for the touchscreen, should be tagged
+ as GPIO_ACTIVE_LOW
+
+ bootloader-key:
+ description: the 8-byte bootloader key that is required to switch
+ the chip from bootloader mode (default mode) to application mode
+ $ref: /schemas/types.yaml#/definitions/uint8-array
+ minItems: 8
+ maxItems: 8
+
+ touchscreen-size-x: true
+ touchscreen-size-y: true
+ touchscreen-fuzz-x: true
+ touchscreen-fuzz-y: true
+
+ active-distance:
+ description: the distance in pixels beyond which a touch must move
+ before movement is detected and reported by the device
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 15
+
+ active-interval-ms:
+ description: the minimum period in ms between consecutive
+ scanning/processing cycles when the chip is in active mode
+ minimum: 0
+ maximum: 255
+
+ lowpower-interval-ms:
+ description: the minimum period in ms between consecutive
+ scanning/processing cycles when the chip is in low-power mode
+ minimum: 0
+ maximum: 2550
+
+ touch-timeout-ms:
+ description: minimum time in ms spent in the active power state while no
+ touches are detected before entering low-power mode
+ minimum: 0
+ maximum: 2550
+
+ use-handshake:
+ description: 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)
+ $ref: /schemas/types.yaml#/definitions/flag
+
+additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - bootloader-key
+ - touchscreen-size-x
+ - touchscreen-size-y
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/gpio/gpio.h>
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ num-cs = <1>;
+ cs-gpios = <&gpio 2 GPIO_ACTIVE_HIGH>;
+
+ touchscreen@0 {
+ compatible = "cypress,cy8ctma340";
+ reg = <0>;
+ interrupt-parent = <&gpio>;
+ interrupts = <20 IRQ_TYPE_EDGE_FALLING>;
+ reset-gpios = <&gpio 21 GPIO_ACTIVE_LOW>;
+ vdd-supply = <&ldo_aux1_reg>;
+ vcpin-supply = <&ldo_aux2_reg>;
+ bootloader-key = /bits/ 8 <0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07>;
+ touchscreen-size-x = <480>;
+ touchscreen-size-y = <800>;
+ active-interval-ms = <0>;
+ touch-timeout-ms = <255>;
+ lowpower-interval-ms = <10>;
+ };
+ };
+
+...
diff --git a/Bindings/input/touchscreen/cypress,tt21000.yaml b/Bindings/input/touchscreen/cypress,tt21000.yaml
new file mode 100644
index 0000000..037e5d3
--- /dev/null
+++ b/Bindings/input/touchscreen/cypress,tt21000.yaml
@@ -0,0 +1,111 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/touchscreen/cypress,tt21000.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cypress TT21000 touchscreen controller
+
+description: The Cypress TT21000 series (also known as "CYTTSP5" after
+ the marketing name Cypress TrueTouch Standard Product series 5).
+
+maintainers:
+ - Alistair Francis <alistair@alistair23.me>
+
+allOf:
+ - $ref: touchscreen.yaml#
+
+properties:
+ compatible:
+ const: cypress,tt21000
+
+ reg:
+ maxItems: 1
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+ interrupts:
+ maxItems: 1
+
+ vdd-supply:
+ description: Regulator for voltage.
+
+ vddio-supply:
+ description: Optional Regulator for I/O voltage.
+
+ reset-gpios:
+ maxItems: 1
+
+ linux,keycodes:
+ description: EV_ABS specific event code generated by the axis.
+
+ wakeup-source: true
+
+patternProperties:
+ "^button@[0-9]+$":
+ type: object
+ $ref: ../input.yaml#
+ properties:
+ reg:
+ maxItems: 1
+ linux,keycodes:
+ description: Keycode to emit
+
+ required:
+ - reg
+ - linux,keycodes
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - vdd-supply
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/input/linux-event-codes.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ touchscreen@24 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ compatible = "cypress,tt21000";
+ reg = <0x24>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&tp_reset_ds203>;
+ interrupt-parent = <&pio>;
+ interrupts = <1 5 IRQ_TYPE_LEVEL_LOW>;
+ reset-gpios = <&pio 7 1 GPIO_ACTIVE_LOW>;
+ vdd-supply = <®_touch>;
+
+ button@0 {
+ reg = <0>;
+ linux,keycodes = <KEY_HOMEPAGE>;
+ };
+
+ button@1 {
+ reg = <1>;
+ linux,keycodes = <KEY_MENU>;
+ };
+
+ button@2 {
+ reg = <2>;
+ linux,keycodes = <KEY_BACK>;
+ };
+ };
+ };
+...
diff --git a/Bindings/input/touchscreen/edt-ft5x06.yaml b/Bindings/input/touchscreen/edt-ft5x06.yaml
new file mode 100644
index 0000000..f2808cb
--- /dev/null
+++ b/Bindings/input/touchscreen/edt-ft5x06.yaml
@@ -0,0 +1,135 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/touchscreen/edt-ft5x06.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: FocalTech EDT-FT5x06 Polytouch
+
+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: true
+ iovcc-supply: true
+
+ 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
+
+ report-rate-hz:
+ description: |
+ Allows setting the scan rate in Hertz.
+ M06 supports range from 30 to 140 Hz.
+ M12 supports range from 1 to 255 Hz.
+ minimum: 1
+ maximum: 255
+
+ threshold:
+ description: Allows setting the "click"-threshold in the range from 0 to 255.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 255
+
+ touchscreen-size-x: true
+ touchscreen-size-y: true
+ touchscreen-fuzz-x: true
+ touchscreen-fuzz-y: true
+ touchscreen-inverted-x: true
+ touchscreen-inverted-y: true
+ touchscreen-swapped-x-y: true
+ interrupt-controller: true
+
+additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ edt-ft5x06@38 {
+ compatible = "edt,edt-ft5406";
+ reg = <0x38>;
+ interrupt-parent = <&gpio2>;
+ interrupts = <5 IRQ_TYPE_EDGE_FALLING>;
+ reset-gpios = <&gpio2 6 GPIO_ACTIVE_LOW>;
+ wake-gpios = <&gpio4 9 GPIO_ACTIVE_HIGH>;
+ };
+ };
+
+...
diff --git a/Bindings/input/touchscreen/eeti,exc3000.yaml b/Bindings/input/touchscreen/eeti,exc3000.yaml
new file mode 100644
index 0000000..9dc25d3
--- /dev/null
+++ b/Bindings/input/touchscreen/eeti,exc3000.yaml
@@ -0,0 +1,60 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$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
+ vdd-supply:
+ description: Power supply regulator for the chip
+ 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/Bindings/input/touchscreen/eeti.txt b/Bindings/input/touchscreen/eeti.txt
new file mode 100644
index 0000000..32b3712
--- /dev/null
+++ b/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/Bindings/input/touchscreen/egalax-ts.txt b/Bindings/input/touchscreen/egalax-ts.txt
new file mode 100644
index 0000000..ebbe938
--- /dev/null
+++ b/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 IRQ_TYPE_LEVEL_LOW>;
+ wakeup-gpios = <&gpio1 9 GPIO_ACTIVE_LOW>;
+ };
diff --git a/Bindings/input/touchscreen/ektf2127.txt b/Bindings/input/touchscreen/ektf2127.txt
new file mode 100644
index 0000000..c9f2c9f
--- /dev/null
+++ b/Bindings/input/touchscreen/ektf2127.txt
@@ -0,0 +1,25 @@
+* Elan eKTF2127 I2C touchscreen controller
+
+Required properties:
+ - compatible : "elan,ektf2127" or "elan,ektf2132"
+ - 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 its 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/Bindings/input/touchscreen/elan,elants_i2c.yaml b/Bindings/input/touchscreen/elan,elants_i2c.yaml
new file mode 100644
index 0000000..3255c2c
--- /dev/null
+++ b/Bindings/input/touchscreen/elan,elants_i2c.yaml
@@ -0,0 +1,74 @@
+# 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:
+ oneOf:
+ - enum:
+ - elan,ektf3624
+ - elan,ekth3500
+ - items:
+ - const: elan,ekth3915
+ - const: elan,ekth3500
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ wakeup-source:
+ type: boolean
+ description: touchscreen can be used as a wakeup source.
+
+ reset-gpios:
+ maxItems: 1
+ 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/Bindings/input/touchscreen/fsl-mx25-tcq.txt b/Bindings/input/touchscreen/fsl-mx25-tcq.txt
new file mode 100644
index 0000000..99d6f9d
--- /dev/null
+++ b/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/Bindings/input/touchscreen/goodix.yaml b/Bindings/input/touchscreen/goodix.yaml
new file mode 100644
index 0000000..3d016b8
--- /dev/null
+++ b/Bindings/input/touchscreen/goodix.yaml
@@ -0,0 +1,81 @@
+# 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
+
+maintainers:
+ - Dmitry Torokhov <dmitry.torokhov@gmail.com>
+
+allOf:
+ - $ref: touchscreen.yaml#
+
+properties:
+ compatible:
+ enum:
+ - goodix,gt1151
+ - goodix,gt1158
+ - goodix,gt5663
+ - goodix,gt5688
+ - goodix,gt911
+ - goodix,gt9110
+ - goodix,gt912
+ - goodix,gt9147
+ - goodix,gt917s
+ - goodix,gt927
+ - goodix,gt9271
+ - goodix,gt928
+ - goodix,gt9286
+ - 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/Bindings/input/touchscreen/hideep.txt b/Bindings/input/touchscreen/hideep.txt
new file mode 100644
index 0000000..a47c361
--- /dev/null
+++ b/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/Bindings/input/touchscreen/himax,hx83112b.yaml b/Bindings/input/touchscreen/himax,hx83112b.yaml
new file mode 100644
index 0000000..f42b23d
--- /dev/null
+++ b/Bindings/input/touchscreen/himax,hx83112b.yaml
@@ -0,0 +1,63 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/touchscreen/himax,hx83112b.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Himax hx83112b touchscreen controller
+
+maintainers:
+ - Job Noorman <job@noorman.info>
+
+allOf:
+ - $ref: touchscreen.yaml#
+
+properties:
+ compatible:
+ enum:
+ - himax,hx83112b
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ reset-gpios:
+ maxItems: 1
+
+ touchscreen-inverted-x: true
+ touchscreen-inverted-y: true
+ touchscreen-size-x: true
+ touchscreen-size-y: true
+ touchscreen-swapped-x-y: true
+
+additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - reset-gpios
+ - touchscreen-size-x
+ - touchscreen-size-y
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/gpio/gpio.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ touchscreen@48 {
+ compatible = "himax,hx83112b";
+ reg = <0x48>;
+ interrupt-parent = <&tlmm>;
+ interrupts = <65 IRQ_TYPE_LEVEL_LOW>;
+ touchscreen-size-x = <1080>;
+ touchscreen-size-y = <2160>;
+ reset-gpios = <&tlmm 64 GPIO_ACTIVE_LOW>;
+ };
+ };
+
+...
diff --git a/Bindings/input/touchscreen/hycon,hy46xx.yaml b/Bindings/input/touchscreen/hycon,hy46xx.yaml
new file mode 100644
index 0000000..874c078
--- /dev/null
+++ b/Bindings/input/touchscreen/hycon,hy46xx.yaml
@@ -0,0 +1,119 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/touchscreen/hycon,hy46xx.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Hycon HY46XX series touchscreen controller
+
+description: |
+ There are 6 variants of the chip for various touch panel sizes and cover lens material
+ Glass: 0.3mm--4.0mm
+ PET/PMMA: 0.2mm--2.0mm
+ HY4613(B)-N048 < 6"
+ HY4614(B)-N068 7" .. 10.1"
+ HY4621-NS32 < 5"
+ HY4623-NS48 5.1" .. 7"
+ Glass: 0.3mm--8.0mm
+ PET/PMMA: 0.2mm--4.0mm
+ HY4633(B)-N048 < 6"
+ HY4635(B)-N048 < 7" .. 10.1"
+
+maintainers:
+ - Giulio Benetti <giulio.benetti@benettiengineering.com>
+
+allOf:
+ - $ref: touchscreen.yaml#
+
+properties:
+ compatible:
+ enum:
+ - hycon,hy4613
+ - hycon,hy4614
+ - hycon,hy4621
+ - hycon,hy4623
+ - hycon,hy4633
+ - hycon,hy4635
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ reset-gpios:
+ maxItems: 1
+
+ vcc-supply: true
+
+ hycon,threshold:
+ description: Allows setting the sensitivity in the range from 0 to 255.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 255
+
+ hycon,glove-enable:
+ type: boolean
+ description: Allows enabling glove setting.
+
+ hycon,report-speed-hz:
+ description: Allows setting the report speed in Hertz.
+ minimum: 1
+ maximum: 255
+
+ hycon,noise-filter-enable:
+ type: boolean
+ description: Allows enabling power noise filter.
+
+ hycon,filter-data:
+ description: Allows setting how many samples throw before reporting touch
+ in the range from 0 to 5.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 5
+
+ hycon,gain:
+ description: Allows setting the sensitivity distance in the range from 0 to 5.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 5
+
+ hycon,edge-offset:
+ description: Allows setting the edge compensation in the range from 0 to 16.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 16
+
+ touchscreen-size-x: true
+ touchscreen-size-y: true
+ touchscreen-fuzz-x: true
+ touchscreen-fuzz-y: true
+ touchscreen-inverted-x: true
+ touchscreen-inverted-y: true
+ touchscreen-swapped-x-y: true
+ interrupt-controller: true
+
+additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ touchscreen@1c {
+ compatible = "hycon,hy4633";
+ reg = <0x1c>;
+ interrupt-parent = <&gpio2>;
+ interrupts = <5 IRQ_TYPE_EDGE_FALLING>;
+ reset-gpios = <&gpio2 6 GPIO_ACTIVE_LOW>;
+ };
+ };
+
+...
diff --git a/Bindings/input/touchscreen/hynitron,cstxxx.yaml b/Bindings/input/touchscreen/hynitron,cstxxx.yaml
new file mode 100644
index 0000000..9cb5d4a
--- /dev/null
+++ b/Bindings/input/touchscreen/hynitron,cstxxx.yaml
@@ -0,0 +1,65 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/touchscreen/hynitron,cstxxx.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Hynitron cstxxx series touchscreen controller
+
+description: |
+ Bindings for Hynitron cstxxx series multi-touch touchscreen
+ controllers.
+
+maintainers:
+ - Chris Morgan <macromorgan@hotmail.com>
+
+allOf:
+ - $ref: touchscreen.yaml#
+
+properties:
+ compatible:
+ enum:
+ - hynitron,cst340
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ reset-gpios:
+ maxItems: 1
+
+ touchscreen-size-x: true
+ touchscreen-size-y: true
+ touchscreen-inverted-x: true
+ touchscreen-inverted-y: true
+ touchscreen-swapped-x-y: true
+
+additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - reset-gpios
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ touchscreen@1a {
+ compatible = "hynitron,cst340";
+ reg = <0x1a>;
+ interrupt-parent = <&gpio4>;
+ interrupts = <9 IRQ_TYPE_EDGE_FALLING>;
+ reset-gpios = <&gpio4 6 GPIO_ACTIVE_LOW>;
+ touchscreen-size-x = <640>;
+ touchscreen-size-y = <480>;
+ };
+ };
+
+...
diff --git a/Bindings/input/touchscreen/ilitek_ts_i2c.yaml b/Bindings/input/touchscreen/ilitek_ts_i2c.yaml
new file mode 100644
index 0000000..9f73289
--- /dev/null
+++ b/Bindings/input/touchscreen/ilitek_ts_i2c.yaml
@@ -0,0 +1,76 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/touchscreen/ilitek_ts_i2c.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Ilitek I2C Touchscreen Controller
+
+maintainers:
+ - Dmitry Torokhov <dmitry.torokhov@gmail.com>
+
+allOf:
+ - $ref: touchscreen.yaml#
+
+properties:
+ compatible:
+ enum:
+ - ilitek,ili210x
+ - ilitek,ili2117
+ - ilitek,ili2120
+ - ilitek,ili2130
+ - ilitek,ili2131
+ - ilitek,ili2132
+ - ilitek,ili2316
+ - ilitek,ili2322
+ - ilitek,ili2323
+ - ilitek,ili2326
+ - ilitek,ili251x
+ - ilitek,ili2520
+ - ilitek,ili2521
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ reset-gpios:
+ maxItems: 1
+
+ wakeup-source:
+ type: boolean
+ description: touchscreen can be used as a wakeup source.
+
+ touchscreen-size-x: true
+ touchscreen-size-y: true
+ touchscreen-inverted-x: true
+ touchscreen-inverted-y: true
+ touchscreen-swapped-x-y: true
+
+additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/gpio/gpio.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ touchscreen@41 {
+ compatible = "ilitek,ili2520";
+ reg = <0x41>;
+
+ interrupt-parent = <&gpio1>;
+ interrupts = <7 IRQ_TYPE_LEVEL_LOW>;
+ reset-gpios = <&gpio1 8 GPIO_ACTIVE_LOW>;
+ touchscreen-inverted-y;
+ wakeup-source;
+ };
+ };
diff --git a/Bindings/input/touchscreen/imagis,ist3038c.yaml b/Bindings/input/touchscreen/imagis,ist3038c.yaml
new file mode 100644
index 0000000..0d6b033
--- /dev/null
+++ b/Bindings/input/touchscreen/imagis,ist3038c.yaml
@@ -0,0 +1,74 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/touchscreen/imagis,ist3038c.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Imagis IST30XXC family touchscreen controller
+
+maintainers:
+ - Markuss Broks <markuss.broks@gmail.com>
+
+allOf:
+ - $ref: touchscreen.yaml#
+
+properties:
+ $nodename:
+ pattern: "^touchscreen@[0-9a-f]+$"
+
+ compatible:
+ enum:
+ - imagis,ist3038c
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ vdd-supply:
+ description: Power supply regulator for the chip
+
+ vddio-supply:
+ description: Power supply regulator for the I2C bus
+
+ 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
+
+additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - touchscreen-size-x
+ - touchscreen-size-y
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ touchscreen@50 {
+ compatible = "imagis,ist3038c";
+ reg = <0x50>;
+ interrupt-parent = <&gpio>;
+ interrupts = <13 IRQ_TYPE_EDGE_FALLING>;
+ vdd-supply = <&ldo1_reg>;
+ vddio-supply = <&ldo2_reg>;
+ touchscreen-size-x = <720>;
+ touchscreen-size-y = <1280>;
+ touchscreen-fuzz-x = <10>;
+ touchscreen-fuzz-y = <10>;
+ touchscreen-inverted-x;
+ touchscreen-inverted-y;
+ };
+ };
+
+...
diff --git a/Bindings/input/touchscreen/imx6ul_tsc.txt b/Bindings/input/touchscreen/imx6ul_tsc.txt
new file mode 100644
index 0000000..1649150
--- /dev/null
+++ b/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/Bindings/input/touchscreen/lpc32xx-tsc.txt b/Bindings/input/touchscreen/lpc32xx-tsc.txt
new file mode 100644
index 0000000..41cbf4b
--- /dev/null
+++ b/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/Bindings/input/touchscreen/max11801-ts.txt b/Bindings/input/touchscreen/max11801-ts.txt
new file mode 100644
index 0000000..05e982c
--- /dev/null
+++ b/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/Bindings/input/touchscreen/melfas,mms114.yaml b/Bindings/input/touchscreen/melfas,mms114.yaml
new file mode 100644
index 0000000..07f9dd6
--- /dev/null
+++ b/Bindings/input/touchscreen/melfas,mms114.yaml
@@ -0,0 +1,92 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/touchscreen/melfas,mms114.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Melfas MMS114 family touchscreen controller
+
+maintainers:
+ - Linus Walleij <linus.walleij@linaro.org>
+
+allOf:
+ - $ref: touchscreen.yaml#
+
+properties:
+ $nodename:
+ pattern: "^touchscreen(@.*)?$"
+
+ compatible:
+ items:
+ - enum:
+ - melfas,mms114
+ - melfas,mms134s
+ - melfas,mms136
+ - melfas,mms152
+ - melfas,mms345l
+
+ reg:
+ description: I2C address
+
+ clock-frequency:
+ description: I2C client clock frequency, defined for host
+ minimum: 100000
+ maximum: 400000
+
+ interrupts:
+ maxItems: 1
+
+ avdd-supply:
+ description: Analog power supply regulator on AVDD pin
+
+ vdd-supply:
+ description: Digital power supply regulator on VDD pin
+
+ touchscreen-size-x: true
+ touchscreen-size-y: true
+ touchscreen-fuzz-x: true
+ touchscreen-fuzz-y: true
+ touchscreen-fuzz-pressure: true
+ touchscreen-inverted-x: true
+ touchscreen-inverted-y: true
+ touchscreen-swapped-x-y: true
+ touchscreen-max-pressure: true
+
+ linux,keycodes:
+ description: Keycodes for the touch keys
+ minItems: 1
+ maxItems: 15
+
+additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - touchscreen-size-x
+ - touchscreen-size-y
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ touchscreen@48 {
+ compatible = "melfas,mms114";
+ reg = <0x48>;
+ interrupt-parent = <&gpio>;
+ interrupts = <39 IRQ_TYPE_EDGE_FALLING>;
+ avdd-supply = <&ldo1_reg>;
+ vdd-supply = <&ldo2_reg>;
+ 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/Bindings/input/touchscreen/melfas_mip4.txt b/Bindings/input/touchscreen/melfas_mip4.txt
new file mode 100644
index 0000000..b2ab549
--- /dev/null
+++ b/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/Bindings/input/touchscreen/mstar,msg2638.yaml b/Bindings/input/touchscreen/mstar,msg2638.yaml
new file mode 100644
index 0000000..ddbbc82
--- /dev/null
+++ b/Bindings/input/touchscreen/mstar,msg2638.yaml
@@ -0,0 +1,75 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/touchscreen/mstar,msg2638.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MStar msg2638 touchscreen controller
+
+maintainers:
+ - Vincent Knecht <vincent.knecht@mailoo.org>
+
+allOf:
+ - $ref: touchscreen.yaml#
+
+properties:
+ compatible:
+ enum:
+ - mstar,msg2138
+ - mstar,msg2638
+
+ reg:
+ const: 0x26
+
+ interrupts:
+ maxItems: 1
+
+ reset-gpios:
+ maxItems: 1
+
+ vdd-supply:
+ description: Power supply regulator for the chip
+
+ vddio-supply:
+ description: Power supply regulator for the I2C bus
+
+ touchscreen-size-x: true
+ touchscreen-size-y: true
+
+ linux,keycodes:
+ minItems: 1
+ maxItems: 4
+
+additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - reset-gpios
+ - touchscreen-size-x
+ - touchscreen-size-y
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ touchscreen@26 {
+ compatible = "mstar,msg2638";
+ reg = <0x26>;
+ interrupt-parent = <&msmgpio>;
+ interrupts = <13 IRQ_TYPE_EDGE_FALLING>;
+ reset-gpios = <&msmgpio 100 GPIO_ACTIVE_LOW>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&ts_int_reset_default>;
+ vdd-supply = <&pm8916_l17>;
+ vddio-supply = <&pm8916_l5>;
+ touchscreen-size-x = <2048>;
+ touchscreen-size-y = <2048>;
+ };
+ };
+
+...
diff --git a/Bindings/input/touchscreen/pixcir,pixcir_ts.yaml b/Bindings/input/touchscreen/pixcir,pixcir_ts.yaml
new file mode 100644
index 0000000..3305eda
--- /dev/null
+++ b/Bindings/input/touchscreen/pixcir,pixcir_ts.yaml
@@ -0,0 +1,68 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/touchscreen/pixcir,pixcir_ts.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Pixcir Touchscreen Controller
+
+maintainers:
+ - Dmitry Torokhov <dmitry.torokhov@gmail.com>
+
+allOf:
+ - $ref: touchscreen.yaml#
+
+properties:
+ compatible:
+ enum:
+ - pixcir,pixcir_ts
+ - pixcir,pixcir_tangoc
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ attb-gpio:
+ maxItems: 1
+
+ reset-gpios:
+ maxItems: 1
+
+ enable-gpios:
+ maxItems: 1
+
+ wake-gpios:
+ maxItems: 1
+
+unevaluatedProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - attb-gpio
+ - touchscreen-size-x
+ - touchscreen-size-y
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ touchscreen@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/Bindings/input/touchscreen/raspberrypi,firmware-ts.txt b/Bindings/input/touchscreen/raspberrypi,firmware-ts.txt
new file mode 100644
index 0000000..2a1af24
--- /dev/null
+++ b/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/Bindings/input/touchscreen/resistive-adc-touch.yaml b/Bindings/input/touchscreen/resistive-adc-touch.yaml
new file mode 100644
index 0000000..7fc22a4
--- /dev/null
+++ b/Bindings/input/touchscreen/resistive-adc-touch.yaml
@@ -0,0 +1,86 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/touchscreen/resistive-adc-touch.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Generic resistive touchscreen ADC
+
+maintainers:
+ - Oleksij Rempel <o.rempel@pengutronix.de>
+
+description: |
+ Generic ADC based resistive touchscreen controller
+ The device must be connected to an ADC device that provides channels for
+ position measurement and optional pressure.
+
+allOf:
+ - $ref: touchscreen.yaml#
+
+properties:
+ compatible:
+ const: resistive-adc-touch
+
+ io-channels:
+ minItems: 2
+ items:
+ - description: x
+ - description: y
+ - description: pressure (optional)
+ - description: z1 (optional)
+ - description: z2 (optional)
+
+ io-channel-names:
+ oneOf:
+ - items:
+ - enum: [x, y]
+ - enum: [x, y]
+ - items:
+ - enum: [x, y, pressure]
+ - enum: [x, y, pressure]
+ - enum: [x, y, pressure]
+ - items:
+ - enum: [x, y, z1, z2]
+ - enum: [x, y, z1, z2]
+ - enum: [x, y, z1, z2]
+ - enum: [x, y, z1, z2]
+
+ 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
+ touchscreen-min-pressure: true
+ touchscreen-x-plate-ohms: true
+
+additionalProperties: false
+
+required:
+ - compatible
+ - io-channels
+ - io-channel-names
+
+examples:
+ - |
+ touchscreen {
+ compatible = "resistive-adc-touch";
+ io-channels = <&adc 24>, <&adc 25>;
+ io-channel-names = "y", "x";
+ };
+ - |
+ touchscreen {
+ compatible = "resistive-adc-touch";
+ touchscreen-min-pressure = <50000>;
+ io-channels = <&adc 24>, <&adc 25>, <&adc 26>;
+ io-channel-names = "y", "pressure", "x";
+ };
+ - |
+ touchscreen {
+ compatible = "resistive-adc-touch";
+ touchscreen-min-pressure = <50000>;
+ io-channels = <&adc 1>, <&adc 2>, <&adc 3>, <&adc 4>;
+ io-channel-names = "x", "z1", "z2", "y";
+ touchscreen-x-plate-ohms = <800>;
+ };
diff --git a/Bindings/input/touchscreen/samsung,s6sy761.txt b/Bindings/input/touchscreen/samsung,s6sy761.txt
new file mode 100644
index 0000000..6805d10
--- /dev/null
+++ b/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/Bindings/input/touchscreen/silead,gsl1680.yaml b/Bindings/input/touchscreen/silead,gsl1680.yaml
new file mode 100644
index 0000000..95b554b
--- /dev/null
+++ b/Bindings/input/touchscreen/silead,gsl1680.yaml
@@ -0,0 +1,91 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/touchscreen/silead,gsl1680.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Silead GSL1680 Touchscreen Controller
+
+maintainers:
+ - Dmitry Torokhov <dmitry.torokhov@gmail.com>
+
+allOf:
+ - $ref: touchscreen.yaml#
+
+properties:
+ compatible:
+ enum:
+ - silead,gsl1680
+ - silead,gsl1688
+ - silead,gsl3670
+ - silead,gsl3675
+ - silead,gsl3692
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ power-gpios:
+ maxItems: 1
+
+ firmware-name:
+ $ref: /schemas/types.yaml#/definitions/string
+ description: >
+ File basename for board specific firmware
+
+ silead,max-fingers:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ maximum: 5
+ description: >
+ Maximum number of fingers the touchscreen can detect
+
+ silead,home-button:
+ type: boolean
+ description: >
+ Does the device have a capacitive home-button build into the
+ touchscreen?
+
+ avdd-supply:
+ description: >
+ Regulator phandle for controller AVDD
+
+ vddio-supply:
+ description: >
+ Regulator phandle for controller VDDIO
+
+unevaluatedProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - power-gpios
+ - touchscreen-size-x
+ - touchscreen-size-y
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ 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/Bindings/input/touchscreen/sis_i2c.txt b/Bindings/input/touchscreen/sis_i2c.txt
new file mode 100644
index 0000000..8f5322e
--- /dev/null
+++ b/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/Bindings/input/touchscreen/sitronix,st1232.yaml b/Bindings/input/touchscreen/sitronix,st1232.yaml
new file mode 100644
index 0000000..1d8ca19
--- /dev/null
+++ b/Bindings/input/touchscreen/sitronix,st1232.yaml
@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/touchscreen/sitronix,st1232.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sitronix st1232 or st1633 touchscreen controller
+
+maintainers:
+ - Bastian Hecht <hechtb@gmail.com>
+
+allOf:
+ - $ref: touchscreen.yaml#
+
+properties:
+ compatible:
+ enum:
+ - sitronix,st1232
+ - sitronix,st1633
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ gpios:
+ description: A phandle to the reset GPIO
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ touchscreen@55 {
+ compatible = "sitronix,st1232";
+ reg = <0x55>;
+ interrupts = <2 0>;
+ gpios = <&gpio1 166 0>;
+ };
+ };
diff --git a/Bindings/input/touchscreen/st,stmfts.yaml b/Bindings/input/touchscreen/st,stmfts.yaml
new file mode 100644
index 0000000..c593ae6
--- /dev/null
+++ b/Bindings/input/touchscreen/st,stmfts.yaml
@@ -0,0 +1,72 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/touchscreen/st,stmfts.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ST-Microelectronics FingerTip touchscreen controller
+
+maintainers:
+ - Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
+
+description:
+ 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.
+
+allOf:
+ - $ref: touchscreen.yaml#
+
+properties:
+ compatible:
+ const: st,stmfts
+
+ reg:
+ maxItems: 1
+
+ avdd-supply:
+ description: Analogic power supply
+
+ interrupts:
+ maxItems: 1
+
+ ledvdd-supply:
+ description: Power supply to the touch key leds
+
+ touch-key-connected:
+ type: boolean
+ description: The touchkey feature is connected
+
+ vdd-supply:
+ description: Power supply
+
+required:
+ - compatible
+ - reg
+ - avdd-supply
+ - interrupts
+ - vdd-supply
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ touchscreen@49 {
+ compatible = "st,stmfts";
+ reg = <0x49>;
+ interrupt-parent = <&gpa1>;
+ interrupts = <1 IRQ_TYPE_LEVEL_LOW>;
+ 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/Bindings/input/touchscreen/sx8654.txt b/Bindings/input/touchscreen/sx8654.txt
new file mode 100644
index 0000000..0ebe6dd
--- /dev/null
+++ b/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/Bindings/input/touchscreen/ti,am3359-tsc.yaml b/Bindings/input/touchscreen/ti,am3359-tsc.yaml
new file mode 100644
index 0000000..e44cc65
--- /dev/null
+++ b/Bindings/input/touchscreen/ti,am3359-tsc.yaml
@@ -0,0 +1,76 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/touchscreen/ti,am3359-tsc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TI AM3359 Touchscreen controller
+
+maintainers:
+ - Miquel Raynal <miquel.raynal@bootlin.com>
+
+properties:
+ compatible:
+ const: ti,am3359-tsc
+
+ ti,wires:
+ description: Wires refer to application modes i.e. 4/5/8 wire touchscreen
+ support on the platform.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [4, 5, 8]
+
+ ti,x-plate-resistance:
+ description: X plate resistance
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ ti,coordinate-readouts:
+ description: 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.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 1
+ maximum: 6
+
+ ti,wire-config:
+ description: Different boards could have a different order for connecting
+ wires on touchscreen. We need to provide an 8-bit number where the
+ first 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 respectively are as follows, AIN0 = 0, AIN1 = 1
+ and so on until AIN7 = 7. XP = 0, XN = 1, YP = 2, YN = 3.
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ minItems: 4
+ maxItems: 8
+
+ ti,charge-delay:
+ description: 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".
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+required:
+ - compatible
+ - ti,wires
+ - ti,x-plate-resistance
+ - ti,coordinate-readouts
+ - ti,wire-config
+
+additionalProperties: false
+
+examples:
+ - |
+ tsc {
+ compatible = "ti,am3359-tsc";
+ ti,wires = <4>;
+ ti,x-plate-resistance = <200>;
+ ti,coordinate-readouts = <5>;
+ ti,wire-config = <0x00 0x11 0x22 0x33>;
+ ti,charge-delay = <0x400>;
+ };
diff --git a/Bindings/input/touchscreen/ti,tsc2005.yaml b/Bindings/input/touchscreen/ti,tsc2005.yaml
new file mode 100644
index 0000000..7187c39
--- /dev/null
+++ b/Bindings/input/touchscreen/ti,tsc2005.yaml
@@ -0,0 +1,128 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/touchscreen/ti,tsc2005.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments TSC2004 and TSC2005 touchscreen controller
+
+maintainers:
+ - Marek Vasut <marex@denx.de>
+ - Michael Welling <mwelling@ieee.org>
+
+properties:
+ $nodename:
+ pattern: "^touchscreen(@.*)?$"
+
+ compatible:
+ enum:
+ - ti,tsc2004
+ - ti,tsc2005
+
+ reg:
+ maxItems: 1
+ description: |
+ I2C address when used on the I2C bus, or the SPI chip select index
+ when used on the SPI bus
+
+ interrupts:
+ maxItems: 1
+
+ reset-gpios:
+ maxItems: 1
+ description: GPIO specifier for the controller reset line
+
+ spi-max-frequency:
+ description: TSC2005 SPI bus clock frequency.
+ maximum: 25000000
+
+ ti,x-plate-ohms:
+ description: resistance of the touchscreen's X plates in ohm (defaults to 280)
+
+ ti,esd-recovery-timeout-ms:
+ description: |
+ if the touchscreen does not respond after the configured time
+ (in milli seconds), the driver will reset it. This is disabled
+ by default.
+
+ vio-supply:
+ description: Regulator specifier
+
+ touchscreen-fuzz-pressure: true
+ touchscreen-fuzz-x: true
+ touchscreen-fuzz-y: true
+ touchscreen-max-pressure: true
+ touchscreen-size-x: true
+ touchscreen-size-y: true
+
+allOf:
+ - $ref: touchscreen.yaml#
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: ti,tsc2004
+ then:
+ properties:
+ spi-max-frequency: false
+
+additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/gpio/gpio.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ touchscreen@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>;
+ };
+ };
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/gpio/gpio.h>
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ touchscreen@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/Bindings/input/touchscreen/touchscreen.txt b/Bindings/input/touchscreen/touchscreen.txt
new file mode 100644
index 0000000..e1adb90
--- /dev/null
+++ b/Bindings/input/touchscreen/touchscreen.txt
@@ -0,0 +1 @@
+See touchscreen.yaml
diff --git a/Bindings/input/touchscreen/touchscreen.yaml b/Bindings/input/touchscreen/touchscreen.yaml
new file mode 100644
index 0000000..431c133
--- /dev/null
+++ b/Bindings/input/touchscreen/touchscreen.yaml
@@ -0,0 +1,96 @@
+# 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
+
+maintainers:
+ - Dmitry Torokhov <dmitry.torokhov@gmail.com>
+
+properties:
+ panel:
+ description: If this touchscreen is integrally connected to a panel, this
+ is a reference to that panel. The presence of this reference indicates
+ that the touchscreen should be power sequenced together with the panel
+ and that they may share power and/or reset signals.
+ $ref: /schemas/types.yaml#/definitions/phandle
+
+ 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
+
+ touchscreen-y-mm:
+ description: vertical length in mm of the touchscreen
+
+ touchscreen-x-plate-ohms:
+ description: Resistance of the X-plate in Ohms
+
+ touchscreen-y-plate-ohms:
+ description: Resistance of the Y-plate in Ohms
+
+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/Bindings/input/touchscreen/ts4800-ts.txt b/Bindings/input/touchscreen/ts4800-ts.txt
new file mode 100644
index 0000000..4c1c092
--- /dev/null
+++ b/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/Bindings/input/touchscreen/tsc2007.txt b/Bindings/input/touchscreen/tsc2007.txt
new file mode 100644
index 0000000..210486a
--- /dev/null
+++ b/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 (through 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/Bindings/input/touchscreen/zet6223.txt b/Bindings/input/touchscreen/zet6223.txt
new file mode 100644
index 0000000..27d55a5
--- /dev/null
+++ b/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/Bindings/input/touchscreen/zforce_ts.txt b/Bindings/input/touchscreen/zforce_ts.txt
new file mode 100644
index 0000000..e3c27c4
--- /dev/null
+++ b/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 = <®_zforce_vdd>;
+
+ reset-gpios = <&gpio5 9 0>; /* RST */
+ irq-gpios = <&gpio5 6 0>; /* IRQ, optional */
+
+ x-size = <800>;
+ y-size = <600>;
+ };
+
+ /* ... */
+ };
diff --git a/Bindings/input/touchscreen/zinitix,bt400.yaml b/Bindings/input/touchscreen/zinitix,bt400.yaml
new file mode 100644
index 0000000..b150746
--- /dev/null
+++ b/Bindings/input/touchscreen/zinitix,bt400.yaml
@@ -0,0 +1,115 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/touchscreen/zinitix,bt400.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Zinitix BT4xx and BT5xx series touchscreen controller
+
+description: The Zinitix BT4xx and BT5xx series of touchscreen controllers
+ are Korea-produced touchscreens with embedded microcontrollers. The
+ BT4xx series was produced 2010-2013 and the BT5xx series 2013-2014.
+
+maintainers:
+ - Michael Srba <Michael.Srba@seznam.cz>
+ - Linus Walleij <linus.walleij@linaro.org>
+
+allOf:
+ - $ref: touchscreen.yaml#
+
+properties:
+ $nodename:
+ pattern: "^touchscreen(@.*)?$"
+
+ compatible:
+ enum:
+ - zinitix,bt402
+ - zinitix,bt403
+ - zinitix,bt404
+ - zinitix,bt412
+ - zinitix,bt413
+ - zinitix,bt431
+ - zinitix,bt432
+ - zinitix,bt531
+ - zinitix,bt532
+ - zinitix,bt538
+ - zinitix,bt541
+ - zinitix,bt548
+ - zinitix,bt554
+ - zinitix,at100
+
+ reg:
+ description: I2C address on the I2C bus
+
+ clock-frequency:
+ description: I2C client clock frequency, defined for host when using
+ the device on the I2C bus
+ minimum: 0
+ maximum: 400000
+
+ interrupts:
+ description: Interrupt to host
+ maxItems: 1
+
+ vcca-supply:
+ description: Analog power supply regulator on the VCCA pin
+
+ vdd-supply:
+ description: Digital power supply regulator on the VDD pin.
+ In older device trees this can be the accidental name for the analog
+ supply on the VCCA pin, and in that case the deprecated vddo-supply is
+ used for the digital power supply.
+
+ vddo-supply:
+ description: Deprecated name for the digital power supply, use vdd-supply
+ as this reflects the real name of the pin. If this supply is present,
+ the vdd-supply represents VCCA instead of VDD. Implementers should first
+ check for this property, and if it is present assume that the vdd-supply
+ represents the analog supply.
+ deprecated: true
+
+ reset-gpios:
+ description: Reset line for the touchscreen, should be tagged
+ as GPIO_ACTIVE_LOW
+
+ zinitix,mode:
+ description: 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.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [1, 2]
+
+ touchscreen-size-x: true
+ touchscreen-size-y: true
+ touchscreen-fuzz-x: true
+ touchscreen-fuzz-y: true
+
+additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - touchscreen-size-x
+ - touchscreen-size-y
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/gpio/gpio.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ touchscreen@20 {
+ compatible = "zinitix,bt541";
+ reg = <0x20>;
+ interrupt-parent = <&gpio>;
+ interrupts = <13 IRQ_TYPE_EDGE_FALLING>;
+ vcca-supply = <®_vcca_tsp>;
+ vdd-supply = <®_vdd_tsp>;
+ touchscreen-size-x = <540>;
+ touchscreen-size-y = <960>;
+ zinitix,mode = <2>;
+ };
+ };