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+# 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>;
+ };
+ };
+
+...
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-Azoteq IQS550/572/525 Trackpad/Touchscreen Controller
-
-Required properties:
-
-- compatible : Must be equal to one of the following:
- "azoteq,iqs550"
- "azoteq,iqs572"
- "azoteq,iqs525"
-
-- reg : I2C slave address for the device.
-
-- interrupts : GPIO to which the device's active-high RDY
- output is connected (see [0]).
-
-- reset-gpios : GPIO to which the device's active-low NRST
- input is connected (see [1]).
-
-Optional properties:
-
-- touchscreen-min-x : See [2].
-
-- touchscreen-min-y : See [2].
-
-- touchscreen-size-x : See [2]. If this property is omitted, the
- maximum x-coordinate is specified by the
- device's "X Resolution" register.
-
-- touchscreen-size-y : See [2]. If this property is omitted, the
- maximum y-coordinate is specified by the
- device's "Y Resolution" register.
-
-- touchscreen-max-pressure : See [2]. Pressure is expressed as the sum of
- the deltas across all channels impacted by a
- touch event. A channel's delta is calculated
- as its count value minus a reference, where
- the count value is inversely proportional to
- the channel's capacitance.
-
-- touchscreen-fuzz-x : See [2].
-
-- touchscreen-fuzz-y : See [2].
-
-- touchscreen-fuzz-pressure : See [2].
-
-- touchscreen-inverted-x : See [2]. Inversion is applied relative to that
- which may already be specified by the device's
- FLIP_X and FLIP_Y register fields.
-
-- touchscreen-inverted-y : See [2]. Inversion is applied relative to that
- which may already be specified by the device's
- FLIP_X and FLIP_Y register fields.
-
-- touchscreen-swapped-x-y : See [2]. Swapping is applied relative to that
- which may already be specified by the device's
- SWITCH_XY_AXIS register field.
-
-[0]: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
-[1]: Documentation/devicetree/bindings/gpio/gpio.txt
-[2]: Documentation/devicetree/bindings/input/touchscreen/touchscreen.txt
-
-Example:
-
- &i2c1 {
- /* ... */
-
- touchscreen@74 {
- compatible = "azoteq,iqs550";
- reg = <0x74>;
- interrupt-parent = <&gpio>;
- interrupts = <17 4>;
- reset-gpios = <&gpio 27 1>;
-
- touchscreen-size-x = <640>;
- touchscreen-size-y = <480>;
-
- touchscreen-max-pressure = <16000>;
- };
-
- /* ... */
- };