| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 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 | }; |