Documentation/devicetree/bindings/mfd/iqs62x.yaml

   1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/mfd/iqs62x.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Azoteq IQS620A/621/622/624/625 Multi-Function Sensors
   8
   9 maintainers:
  10   - Jeff LaBundy <jeff@labundy.com>
  11
  12 description: |
  13   The Azoteq IQS620A, IQS621, IQS622, IQS624 and IQS625 multi-function sensors
  14   integrate multiple sensing technologies in a single package.
  15
  16   Link to datasheets: https://www.azoteq.com/
  17
  18 properties:
  19   compatible:
  20     enum:
  21       - azoteq,iqs620a
  22       - azoteq,iqs621
  23       - azoteq,iqs622
  24       - azoteq,iqs624
  25       - azoteq,iqs625
  26
  27   reg:
  28     maxItems: 1
  29
  30   interrupts:
  31     maxItems: 1
  32
  33   firmware-name:
  34     $ref: /schemas/types.yaml#/definitions/string
  35     description:
  36       Specifies the name of the calibration and configuration file selected by
  37       the driver. If this property is omitted, the name is chosen based on the
  38       device name with ".bin" as the extension (e.g. iqs620a.bin for IQS620A).
  39
  40   keys:
  41     $ref: ../input/iqs62x-keys.yaml
  42
  43   pwm:
  44     $ref: ../pwm/iqs620a-pwm.yaml
  45
  46 required:
  47   - compatible
  48   - reg
  49   - interrupts
  50
  51 additionalProperties: false
  52
  53 examples:
  54   - |
  55     /*
  56      * Dual capacitive buttons with proximity-activated function, unipolar lid
  57      * switch and panel-mounted LED.
  58      */
  59     #include <dt-bindings/input/input.h>
  60     #include <dt-bindings/interrupt-controller/irq.h>
  61
  62     i2c {
  63             #address-cells = <1>;
  64             #size-cells = <0>;
  65
  66             iqs620a@44 {
  67                     compatible = "azoteq,iqs620a";
  68                     reg = <0x44>;
  69                     interrupt-parent = <&gpio>;
  70                     interrupts = <17 IRQ_TYPE_LEVEL_LOW>;
  71
  72                     keys {
  73                             compatible = "azoteq,iqs620a-keys";
  74
  75                             linux,keycodes = <KEY_SELECT>,
  76                                              <KEY_MENU>,
  77                                              <KEY_OK>,
  78                                              <KEY_MENU>;
  79
  80                             hall-switch-south {
  81                                     linux,code = <SW_LID>;
  82                                     azoteq,use-prox;
  83                             };
  84                     };
  85
  86                     iqs620a_pwm: pwm {
  87                             compatible = "azoteq,iqs620a-pwm";
  88                             #pwm-cells = <2>;
  89                     };
  90             };
  91     };
  92
  93     pwmleds {
  94             compatible = "pwm-leds";
  95
  96             led-1 {
  97                     pwms = <&iqs620a_pwm 0 1000000>;
  98                     max-brightness = <255>;
  99             };
 100     };
 101
 102   - |
 103     /* Single inductive button with bipolar dock/tablet-mode switch. */
 104     #include <dt-bindings/input/input.h>
 105     #include <dt-bindings/interrupt-controller/irq.h>
 106
 107     i2c {
 108             #address-cells = <1>;
 109             #size-cells = <0>;
 110
 111             iqs620a@44 {
 112                     compatible = "azoteq,iqs620a";
 113                     reg = <0x44>;
 114                     interrupt-parent = <&gpio>;
 115                     interrupts = <17 IRQ_TYPE_LEVEL_LOW>;
 116
 117                     firmware-name = "iqs620a_coil.bin";
 118
 119                     keys {
 120                             compatible = "azoteq,iqs620a-keys";
 121
 122                             linux,keycodes = <0>,
 123                                              <0>,
 124                                              <0>,
 125                                              <0>,
 126                                              <0>,
 127                                              <0>,
 128                                              <KEY_MUTE>;
 129
 130                             hall-switch-north {
 131                                     linux,code = <SW_DOCK>;
 132                             };
 133
 134                             hall-switch-south {
 135                                     linux,code = <SW_TABLET_MODE>;
 136                             };
 137                     };
 138             };
 139     };
 140
 141   - |
 142     /* Dual capacitive buttons with volume knob. */
 143     #include <dt-bindings/input/input.h>
 144     #include <dt-bindings/interrupt-controller/irq.h>
 145
 146     i2c {
 147             #address-cells = <1>;
 148             #size-cells = <0>;
 149
 150             iqs624@44 {
 151                     compatible = "azoteq,iqs624";
 152                     reg = <0x44>;
 153                     interrupt-parent = <&gpio>;
 154                     interrupts = <17 IRQ_TYPE_LEVEL_LOW>;
 155
 156                     keys {
 157                             compatible = "azoteq,iqs624-keys";
 158
 159                             linux,keycodes = <BTN_0>,
 160                                              <0>,
 161                                              <BTN_1>,
 162                                              <0>,
 163                                              <0>,
 164                                              <0>,
 165                                              <0>,
 166                                              <0>,
 167                                              <0>,
 168                                              <0>,
 169                                              <0>,
 170                                              <0>,
 171                                              <0>,
 172                                              <0>,
 173                                              <KEY_VOLUMEUP>,
 174                                              <KEY_VOLUMEDOWN>;
 175                     };
 176             };
 177     };
 178
 179 ...