max77650.yaml

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    1 # SPDX-License-Identifier: GPL-2.0
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/mfd/max77650.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: MAX77650 ultra low-power PMIC from Maxim Integrated.
    8 
    9 maintainers:
   10   - Bartosz Golaszewski <bgolaszewski@baylibre.com>
   11 
   12 description: |
   13   MAX77650 is an ultra-low power PMIC providing battery charging and power
   14   supply for low-power IoT and wearable applications.
   15 
   16   The GPIO-controller module is represented as part of the top-level PMIC
   17   node. The device exposes a single GPIO line.
   18 
   19   For device-tree bindings of other sub-modules (regulator, power supply,
   20   LEDs and onkey) refer to the binding documents under the respective
   21   sub-system directories.
   22 
   23 properties:
   24   compatible:
   25     const: maxim,max77650
   26 
   27   reg:
   28     description:
   29       I2C device address.
   30     maxItems: 1
   31 
   32   interrupts:
   33     maxItems: 1
   34 
   35   interrupt-controller: true
   36 
   37   "#interrupt-cells":
   38     const: 2
   39     description:
   40       The first cell is the IRQ number, the second cell is the trigger type.
   41 
   42   gpio-controller: true
   43 
   44   "#gpio-cells":
   45     const: 2
   46     description:
   47       The first cell is the pin number and the second cell is used to specify
   48       the gpio active state.
   49 
   50   gpio-line-names:
   51     maxItems: 1
   52     description:
   53       Single string containing the name of the GPIO line.
   54 
   55   regulators:
   56     $ref: ../regulator/max77650-regulator.yaml
   57 
   58   charger:
   59     $ref: ../power/supply/max77650-charger.yaml
   60 
   61   leds:
   62     $ref: ../leds/leds-max77650.yaml
   63 
   64   onkey:
   65     $ref: ../input/max77650-onkey.yaml
   66 
   67 required:
   68   - compatible
   69   - reg
   70   - interrupts
   71   - interrupt-controller
   72   - "#interrupt-cells"
   73   - gpio-controller
   74   - "#gpio-cells"
   75 
   76 additionalProperties: false
   77 
   78 examples:
   79   - |
   80     #include <dt-bindings/interrupt-controller/irq.h>
   81     #include <dt-bindings/input/linux-event-codes.h>
   82     i2c {
   83         #address-cells = <1>;
   84         #size-cells = <0>;
   85 
   86         pmic@48 {
   87             compatible = "maxim,max77650";
   88             reg = <0x48>;
   89 
   90             interrupt-controller;
   91             interrupt-parent = <&gpio2>;
   92             #interrupt-cells = <2>;
   93             interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
   94 
   95             gpio-controller;
   96             #gpio-cells = <2>;
   97             gpio-line-names = "max77650-charger";
   98 
   99             regulators {
  100                 compatible = "maxim,max77650-regulator";
  101 
  102                 max77650_ldo: regulator-ldo {
  103                     regulator-compatible = "ldo";
  104                     regulator-name = "max77650-ldo";
  105                     regulator-min-microvolt = <1350000>;
  106                     regulator-max-microvolt = <2937500>;
  107                 };
  108 
  109                 max77650_sbb0: regulator-sbb0 {
  110                     regulator-compatible = "sbb0";
  111                     regulator-name = "max77650-sbb0";
  112                     regulator-min-microvolt = <800000>;
  113                     regulator-max-microvolt = <1587500>;
  114                 };
  115             };
  116 
  117             charger {
  118                 compatible = "maxim,max77650-charger";
  119                 input-voltage-min-microvolt = <4200000>;
  120                 input-current-limit-microamp = <285000>;
  121             };
  122 
  123             leds {
  124                 compatible = "maxim,max77650-led";
  125                 #address-cells = <1>;
  126                 #size-cells = <0>;
  127 
  128                 led@0 {
  129                     reg = <0>;
  130                     label = "blue:usr0";
  131                 };
  132 
  133                 led@1 {
  134                     reg = <1>;
  135                     label = "red:usr1";
  136                     linux,default-trigger = "heartbeat";
  137                 };
  138 
  139                 led@2 {
  140                     reg = <2>;
  141                     label = "green:usr2";
  142                 };
  143             };
  144 
  145             onkey {
  146                 compatible = "maxim,max77650-onkey";
  147                 linux,code = <KEY_END>;
  148                 maxim,onkey-slide;
  149             };
  150         };
  151     };

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