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diff --git a/Bindings/mfd/st,stmpe.yaml b/Bindings/mfd/st,stmpe.yaml
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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/st,stmpe.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: STMicroelectonics Port Expander (STMPE)
+
+description: STMicroelectronics Port Expander (STMPE) is a series of slow
+ bus controllers for various expanded peripherals such as GPIO, keypad,
+ touchscreen, ADC, PWM or rotator. It can contain one or several different
+ peripherals connected to SPI or I2C.
+
+maintainers:
+ - Linus Walleij <linus.walleij@linaro.org>
+
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+properties:
+ compatible:
+ enum:
+ - st,stmpe601
+ - st,stmpe801
+ - st,stmpe811
+ - st,stmpe1600
+ - st,stmpe1601
+ - st,stmpe2401
+ - st,stmpe2403
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ vcc-supply: true
+
+ vio-supply: true
+
+ reset-gpios:
+ maxItems: 1
+
+ wakeup-source: true
+
+ st,autosleep-timeout:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [ 4, 16, 32, 64, 128, 256, 512, 1024 ]
+ description: Time idle before going to automatic sleep to save power
+
+ st,sample-time:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [ 0, 1, 2, 3, 4, 5, 6 ]
+ description: |
+ Sample time per iteration
+ 0 = 36 clock ticks
+ 1 = 44 clock ticks
+ 2 = 56 clock ticks
+ 3 = 64 clock ticks
+ 4 = 80 clock ticks - recommended
+ 5 = 96 clock ticks
+ 6 = 124 clock ticks
+
+ st,mod-12b:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [ 0, 1 ]
+ description: ADC bit mode 0 = 10bit ADC, 1 = 12bit ADC
+
+ st,ref-sel:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [ 0, 1 ]
+ description: ADC reference source 0 = internal, 1 = external
+
+ st,adc-freq:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [ 0, 1, 2, 3 ]
+ description: |
+ ADC clock speed
+ 0 = 1.625 MHz
+ 1 = 3.25 MHz
+ 2, 3 = 6.5 MHz
+
+ adc:
+ type: object
+ $ref: /schemas/iio/adc/st,stmpe-adc.yaml#
+
+ gpio:
+ type: object
+ $ref: /schemas/gpio/st,stmpe-gpio.yaml#
+
+ keyboard-controller:
+ type: object
+ $ref: /schemas/input/matrix-keymap.yaml#
+
+ unevaluatedProperties: false
+
+ properties:
+ compatible:
+ const: st,stmpe-keypad
+
+ debounce-interval:
+ description: Debouncing interval in milliseconds
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ st,no-autorepeat:
+ description: If present, the keys will not autorepeat when pressed
+ $ref: /schemas/types.yaml#/definitions/flag
+
+ st,scan-count:
+ description: Scanning cycles elapsed before key data is updated
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ required:
+ - compatible
+ - linux,keymap
+
+ pwm:
+ type: object
+ $ref: /schemas/pwm/pwm.yaml#
+
+ unevaluatedProperties: false
+
+ properties:
+ compatible:
+ const: st,stmpe-pwm
+
+ "#pwm-cells":
+ const: 2
+
+ touchscreen:
+ type: object
+ $ref: /schemas/input/touchscreen/touchscreen.yaml#
+
+ unevaluatedProperties: false
+
+ properties:
+ compatible:
+ const: st,stmpe-ts
+
+ st,ave-ctrl:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [ 0, 1, 2, 3 ]
+ description: |
+ Sample average control
+ 0 = 1 sample
+ 1 = 2 samples
+ 2 = 4 samples
+ 3 = 8 samples
+
+ st,touch-det-delay:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [ 0, 1, 2, 3, 4, 5, 6, 7 ]
+ description: |
+ Touch detection delay
+ 0 = 10 us
+ 1 = 50 us
+ 2 = 100 us
+ 3 = 500 us - recommended
+ 4 = 1 ms
+ 5 = 5 ms
+ 6 = 10 ms
+ 7 = 50 ms
+
+ st,settling:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [ 0, 1, 2, 3, 4, 5, 6, 7 ]
+ description: |
+ Panel driver settling time
+ 0 = 10 us
+ 1 = 100 us
+ 2 = 500 us - recommended
+ 3 = 1 ms
+ 4 = 5 ms
+ 5 = 10 ms
+ 6 = 50 ms
+ 7 = 100 ms
+
+ st,fraction-z:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [ 0, 1, 2, 3, 4, 5, 6, 7 ]
+ description: Length of the fractional part in z, recommended is 7
+ (fraction-z ([0..7]) = Count of the fractional part)
+
+ st,i-drive:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [ 0, 1 ]
+ description: |
+ current limit value of the touchscreen drivers
+ 0 = 20 mA (typical 35 mA max)
+ 1 = 50 mA (typical 80 mA max)
+
+ required:
+ - compatible
+
+additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/input/input.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port-expander@43 {
+ compatible = "st,stmpe2401";
+ reg = <0x43>;
+ reset-gpios = <&gpio 13 GPIO_ACTIVE_LOW>;
+ interrupts = <26 IRQ_TYPE_EDGE_FALLING>;
+ interrupt-parent = <&gpio>;
+ vcc-supply = <&db8500_vsmps2_reg>;
+ vio-supply = <&db8500_vsmps2_reg>;
+ wakeup-source;
+ st,autosleep-timeout = <1024>;
+
+ gpio {
+ compatible = "st,stmpe-gpio";
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ st,norequest-mask = <0xf0f002>;
+ };
+
+ keyboard-controller {
+ compatible = "st,stmpe-keypad";
+ debounce-interval = <64>;
+ st,scan-count = <8>;
+ st,no-autorepeat;
+ keypad,num-rows = <8>;
+ keypad,num-columns = <8>;
+ linux,keymap = <
+ MATRIX_KEY(0x00, 0x00, KEY_1)
+ MATRIX_KEY(0x00, 0x01, KEY_2)
+ MATRIX_KEY(0x00, 0x02, KEY_3)
+ MATRIX_KEY(0x00, 0x03, KEY_4)
+ MATRIX_KEY(0x00, 0x04, KEY_5)
+ MATRIX_KEY(0x00, 0x05, KEY_6)
+ MATRIX_KEY(0x00, 0x06, KEY_7)
+ MATRIX_KEY(0x00, 0x07, KEY_8)
+ MATRIX_KEY(0x00, 0x08, KEY_9)
+ MATRIX_KEY(0x00, 0x09, KEY_0)
+ >;
+ };
+
+ pwm {
+ compatible = "st,stmpe-pwm";
+ #pwm-cells = <2>;
+ };
+ };
+
+ port-expander@41 {
+ compatible = "st,stmpe811";
+ reg = <0x41>;
+ interrupts = <10 IRQ_TYPE_LEVEL_LOW>;
+ interrupt-parent = <&gpio>;
+ st,adc-freq = <1>;
+ st,mod-12b = <1>;
+ st,ref-sel = <0>;
+ st,sample-time = <4>;
+
+ adc {
+ compatible = "st,stmpe-adc";
+ st,norequest-mask = <0x0f>;
+ #io-channel-cells = <1>;
+ };
+
+ gpio {
+ compatible = "st,stmpe-gpio";
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ pwm {
+ compatible = "st,stmpe-pwm";
+ #pwm-cells = <2>;
+ };
+
+ touchscreen {
+ compatible = "st,stmpe-ts";
+ st,ave-ctrl = <3>;
+ st,touch-det-delay = <5>;
+ st,settling = <3>;
+ st,fraction-z = <7>;
+ st,i-drive = <1>;
+ };
+ };
+ };
+...