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| 1 | +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause |
| 2 | +%YAML 1.2 |
| 3 | +--- |
| 4 | +$id: http://devicetree.org/schemas/leds/maxim,max77693.yaml# |
| 5 | +$schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | + |
| 7 | +title: Maxim MAX77693 MicroUSB and Companion Power Management IC LEDs |
| 8 | + |
| 9 | +maintainers: |
| 10 | + - Krzysztof Kozlowski <[email protected]> |
| 11 | + |
| 12 | +description: | |
| 13 | + This is a part of device tree bindings for Maxim MAX77693 MicroUSB Integrated |
| 14 | + Circuit (MUIC). |
| 15 | +
|
| 16 | + There are two LED outputs available - FLED1 and FLED2. Each of them can |
| 17 | + control a separate LED or they can be connected together to double the |
| 18 | + maximum current for a single connected LED. One LED is represented by one |
| 19 | + child node. |
| 20 | +
|
| 21 | + See also Documentation/devicetree/bindings/mfd/maxim,max77693.yaml for |
| 22 | + additional information and example. |
| 23 | +
|
| 24 | +properties: |
| 25 | + compatible: |
| 26 | + const: maxim,max77693-led |
| 27 | + |
| 28 | + maxim,boost-mode: |
| 29 | + description: |
| 30 | + In boost mode the device can produce up to 1.2A of total current on both |
| 31 | + outputs. The maximum current on each output is reduced to 625mA then. If |
| 32 | + not enabled explicitly, boost setting defaults to LEDS_BOOST_FIXED in |
| 33 | + case both current sources are used. |
| 34 | + See LEDS_BOOST_* in include/dt-bindings/leds/common.h. |
| 35 | + $ref: /schemas/types.yaml#/definitions/uint32 |
| 36 | + enum: [0, 1, 2] |
| 37 | + |
| 38 | + maxim,boost-mvout: |
| 39 | + description: | |
| 40 | + Output voltage of the boost module in millivolts. |
| 41 | + Valid values: 3300 - 5500, step by 25 (rounded down) |
| 42 | + $ref: /schemas/types.yaml#/definitions/uint32 |
| 43 | + minimum: 3300 |
| 44 | + maximum: 5500 |
| 45 | + default: 3300 |
| 46 | + |
| 47 | + maxim,mvsys-min: |
| 48 | + description: | |
| 49 | + Low input voltage level in millivolts. Flash is not fired if chip |
| 50 | + estimates that system voltage could drop below this level due to flash |
| 51 | + power consumption. |
| 52 | + Valid values: 2400 - 3400, step by 33 (rounded down) |
| 53 | + $ref: /schemas/types.yaml#/definitions/uint32 |
| 54 | + minimum: 2400 |
| 55 | + maximum: 3400 |
| 56 | + default: 2400 |
| 57 | + |
| 58 | +patternProperties: |
| 59 | + "^([a-z]+-)?led[01]?$": |
| 60 | + type: object |
| 61 | + $ref: common.yaml# |
| 62 | + unevaluatedProperties: false |
| 63 | + |
| 64 | + properties: |
| 65 | + led-sources: |
| 66 | + allOf: |
| 67 | + - minItems: 1 |
| 68 | + maxItems: 2 |
| 69 | + items: |
| 70 | + minimum: 0 |
| 71 | + maximum: 1 |
| 72 | + |
| 73 | + led-max-microamp: |
| 74 | + description: | |
| 75 | + Valid values for a LED connected to one FLED output: |
| 76 | + 15625 - 250000, step by 15625 (rounded down) |
| 77 | + Valid values for a LED connected to both FLED outputs: |
| 78 | + 15625 - 500000, step by 15625 (rounded down) |
| 79 | +
|
| 80 | + flash-max-microamp: |
| 81 | + description: | |
| 82 | + Valid values for a single LED connected to one FLED output |
| 83 | + (boost mode must be turned off): |
| 84 | + 15625 - 1000000, step by 15625 (rounded down) |
| 85 | + Valid values for a single LED connected to both FLED outputs: |
| 86 | + 15625 - 1250000, step by 15625 (rounded down) |
| 87 | + Valid values for two LEDs case: |
| 88 | + 15625 - 625000, step by 15625 (rounded down) |
| 89 | +
|
| 90 | + flash-max-timeout-us: |
| 91 | + description: | |
| 92 | + Valid values: 62500 - 1000000, step by 62500 (rounded down) |
| 93 | + minimum: 62500 |
| 94 | + maximum: 1000000 |
| 95 | + |
| 96 | + required: |
| 97 | + - flash-max-microamp |
| 98 | + - flash-max-timeout-us |
| 99 | + - led-max-microamp |
| 100 | + - led-sources |
| 101 | + |
| 102 | +required: |
| 103 | + - compatible |
| 104 | + |
| 105 | +additionalProperties: false |
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