rohm,bd9571mwv.yaml

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    1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/mfd/rohm,bd9571mwv.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: ROHM BD9571MWV/BD9574MWF Power Management Integrated Circuit (PMIC)
    8 
    9 maintainers:
   10   - Marek Vasut <marek.vasut@gmail.com>
   11 
   12 properties:
   13   compatible:
   14     enum:
   15       - rohm,bd9571mwv
   16       - rohm,bd9574mwf
   17 
   18   reg:
   19     maxItems: 1
   20 
   21   interrupts:
   22     maxItems: 1
   23 
   24   interrupt-controller: true
   25 
   26   '#interrupt-cells':
   27     const: 2
   28 
   29   gpio-controller: true
   30 
   31   '#gpio-cells':
   32     const: 2
   33 
   34   rohm,ddr-backup-power:
   35     $ref: /schemas/types.yaml#/definitions/uint32
   36     minimum: 0x0
   37     maximum: 0xf
   38     description: |
   39       Value to use for DDR-Backup Power (default 0).
   40       This is a bitmask that specifies which DDR power rails need to be kept
   41       powered when backup mode is entered, for system suspend:
   42         - bit 0: DDR0
   43         - bit 1: DDR1
   44         - bit 2: DDR0C
   45         - bit 3: DDR1C
   46       These bits match the KEEPON_DDR* bits in the documentation for the "BKUP
   47       Mode Cnt" register.
   48 
   49   rohm,rstbmode-level:
   50     $ref: /schemas/types.yaml#/definitions/flag
   51     description:
   52       The RSTB signal is configured for level mode, to accommodate a toggle
   53       power switch (the RSTBMODE pin is strapped low).
   54 
   55   rohm,rstbmode-pulse:
   56     $ref: /schemas/types.yaml#/definitions/flag
   57     description:
   58       The RSTB signal is configured for pulse mode, to accommodate a momentary
   59       power switch (the RSTBMODE pin is strapped high).
   60 
   61   regulators:
   62     type: object
   63     description:
   64       List of child nodes that specify the regulator initialization data.
   65       Child nodes must be named after their hardware counterparts.
   66 
   67     patternProperties:
   68       "^(vd09|vd18|vd25|vd33|dvfs)$":
   69         type: object
   70         $ref: ../regulator/regulator.yaml#
   71 
   72         properties:
   73           regulator-name:
   74             pattern: "^(vd09|vd18|vd25|vd33|dvfs)$"
   75 
   76         unevaluatedProperties: false
   77 
   78     additionalProperties: false
   79 
   80 additionalProperties: false
   81 
   82 required:
   83   - compatible
   84   - reg
   85   - interrupts
   86   - interrupt-controller
   87   - '#interrupt-cells'
   88   - gpio-controller
   89   - '#gpio-cells'
   90 
   91 oneOf:
   92   - required:
   93       - rohm,rstbmode-level
   94   - required:
   95       - rohm,rstbmode-pulse
   96 
   97 examples:
   98   - |
   99     #include <dt-bindings/interrupt-controller/irq.h>
  100 
  101     i2c {
  102           #address-cells = <1>;
  103           #size-cells = <0>;
  104 
  105           pmic: pmic@30 {
  106                   compatible = "rohm,bd9571mwv";
  107                   reg = <0x30>;
  108                   interrupt-parent = <&gpio2>;
  109                   interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
  110                   interrupt-controller;
  111                   #interrupt-cells = <2>;
  112                   gpio-controller;
  113                   #gpio-cells = <2>;
  114                   rohm,ddr-backup-power = <0xf>;
  115                   rohm,rstbmode-pulse;
  116 
  117                   regulators {
  118                           dvfs: dvfs {
  119                                   regulator-name = "dvfs";
  120                                   regulator-min-microvolt = <750000>;
  121                                   regulator-max-microvolt = <1030000>;
  122                                   regulator-boot-on;
  123                                   regulator-always-on;
  124                           };
  125                   };
  126           };
  127     };

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