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