0001 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
0002 %YAML 1.2
0003 ---
0004 $id: http://devicetree.org/schemas/iio/proximity/semtech,sx9360.yaml#
0005 $schema: http://devicetree.org/meta-schemas/core.yaml#
0006
0007 title: Semtech's SX9360 capacitive proximity sensor
0008
0009 maintainers:
0010 - Gwendal Grignou <gwendal@chromium.org>
0011 - Daniel Campello <campello@chromium.org>
0012
0013 description: |
0014 Semtech's SX9360 proximity sensor.
0015
0016 properties:
0017 compatible:
0018 const: semtech,sx9360
0019
0020 reg:
0021 maxItems: 1
0022
0023 interrupts:
0024 description:
0025 Generated by device to announce preceding read request has finished
0026 and data is available or that a close/far proximity event has happened.
0027 maxItems: 1
0028
0029 vdd-supply:
0030 description: Main power supply
0031
0032 svdd-supply:
0033 description: Host interface power supply
0034
0035 "#io-channel-cells":
0036 const: 1
0037
0038 semtech,resolution:
0039 $ref: /schemas/types.yaml#/definitions/uint32-array
0040 enum: [8, 16, 32, 64, 128, 256, 512, 1024]
0041 description:
0042 Capacitance measurement resolution. For both phases, "reference" and
0043 "measurement". Higher the number, higher the resolution.
0044 default: 128
0045
0046 semtech,proxraw-strength:
0047 $ref: /schemas/types.yaml#/definitions/uint32
0048 minimum: 0
0049 maximum: 7
0050 default: 1
0051 description:
0052 PROXRAW filter strength for both phases. A value of 0 represents off,
0053 and other values represent 1-1/2^N.
0054
0055 semtech,avg-pos-strength:
0056 $ref: /schemas/types.yaml#/definitions/uint32
0057 enum: [0, 16, 64, 128, 256, 512, 1024, 4294967295]
0058 default: 16
0059 description: |
0060 Average positive filter strength. A value of 0 represents off and
0061 UINT_MAX (4294967295) represents infinite. Other values
0062 represent 1-1/N.
0063
0064 semtech,input-precharge-resistor-ohms:
0065 default: 0
0066 multipleOf: 2000
0067 minimum: 0
0068 maximum: 30000
0069 description:
0070 Pre-charge input resistance in Ohm.
0071
0072 required:
0073 - compatible
0074 - reg
0075 - "#io-channel-cells"
0076
0077 additionalProperties: false
0078
0079 examples:
0080 - |
0081 #include <dt-bindings/interrupt-controller/irq.h>
0082 i2c {
0083 #address-cells = <1>;
0084 #size-cells = <0>;
0085 proximity@28 {
0086 compatible = "semtech,sx9360";
0087 reg = <0x28>;
0088 interrupt-parent = <&pio>;
0089 interrupts = <5 IRQ_TYPE_LEVEL_LOW 5>;
0090 vdd-supply = <&pp3300_a>;
0091 svdd-supply = <&pp1800_prox>;
0092 #io-channel-cells = <1>;
0093 semtech,resolution = <256>;
0094 semtech,proxraw-strength = <2>;
0095 semtech,avg-pos-strength = <64>;
0096 semtech,input-precharge-resistor-ohms = <4000>;
0097 };
0098 };
