Documentation/devicetree/bindings/iio/adc/ti,tsc2046.yaml

   1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/iio/adc/ti,tsc2046.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Texas Instruments TSC2046 touch screen controller.
   8
   9 maintainers:
  10   - Oleksij Rempel <o.rempel@pengutronix.de>
  11
  12 description: |
  13   TSC2046 is a touch screen controller with 8 channels ADC.
  14
  15 properties:
  16   compatible:
  17     enum:
  18       - ti,tsc2046e-adc
  19
  20   reg:
  21     maxItems: 1
  22
  23   interrupts:
  24     maxItems: 1
  25
  26   vref-supply:
  27     description: Optional supply of the reference voltage
  28
  29   "#io-channel-cells":
  30     const: 1
  31
  32   '#address-cells':
  33     const: 1
  34
  35   '#size-cells':
  36     const: 0
  37
  38 required:
  39   - compatible
  40   - reg
  41
  42 patternProperties:
  43   "^channel@[0-7]$":
  44     $ref: adc.yaml
  45     type: object
  46
  47     properties:
  48       reg:
  49         description: |
  50           The channel number. It can have up to 8 channels
  51         items:
  52           minimum: 0
  53           maximum: 7
  54
  55       settling-time-us: true
  56       oversampling-ratio: true
  57
  58     required:
  59       - reg
  60
  61     additionalProperties: false
  62
  63 allOf:
  64   - $ref: /schemas/spi/spi-peripheral-props.yaml#
  65
  66 unevaluatedProperties: false
  67
  68 examples:
  69   - |
  70     #include <dt-bindings/interrupt-controller/irq.h>
  71     spi {
  72         #address-cells = <1>;
  73         #size-cells = <0>;
  74
  75         adc@0 {
  76             compatible = "ti,tsc2046e-adc";
  77             reg = <0>;
  78             spi-max-frequency = <1000000>;
  79             interrupts-extended = <&gpio3 20 IRQ_TYPE_LEVEL_LOW>;
  80             #io-channel-cells = <1>;
  81
  82             #address-cells = <1>;
  83             #size-cells = <0>;
  84
  85             channel@0 {
  86                 reg = <0>;
  87             };
  88             channel@1 {
  89                 reg = <1>;
  90                 settling-time-us = <700>;
  91                 oversampling-ratio = <5>;
  92             };
  93             channel@2 {
  94                 reg = <2>;
  95             };
  96             channel@3 {
  97                 reg = <3>;
  98                 settling-time-us = <700>;
  99                 oversampling-ratio = <5>;
 100             };
 101             channel@4 {
 102                 reg = <4>;
 103                 settling-time-us = <700>;
 104                 oversampling-ratio = <5>;
 105             };
 106             channel@5 {
 107                 reg = <5>;
 108                 settling-time-us = <700>;
 109                 oversampling-ratio = <5>;
 110             };
 111             channel@6 {
 112                 reg = <6>;
 113             };
 114             channel@7 {
 115                 reg = <7>;
 116             };
 117         };
 118     };
 119 ...