87 lines
2.1 KiB
YAML
87 lines
2.1 KiB
YAML
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# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/sound/maxim,max98504.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Maxim Integrated MAX98504 class D mono speaker amplifier
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maintainers:
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- Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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description:
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Maxim Integrated MAX98504 speaker amplifier supports I2C control interface
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with an IRQ output signal, PCM and PDM digital audio interface (DAI) and a
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differential analog input.
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properties:
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compatible:
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const: maxim,max98504
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reg:
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maxItems: 1
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interrupts:
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maxItems: 1
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DIOVDD-supply: true
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DVDD-supply: true
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PVDD-supply: true
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maxim,brownout-threshold:
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$ref: /schemas/types.yaml#/definitions/uint32
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maximum: 21
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default: 0
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description:
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PVDD brownout threshold, where values correspond to 2.6V, 2.65V...3.65V
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voltage range. Property also enables the PVDD brownout protection.
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maxim,brownout-attenuation:
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$ref: /schemas/types.yaml#/definitions/uint32
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maximum: 6
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default: 0
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description:
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Brownout attenuation to the speaker gain applied during the "attack hold"
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and "timed hold" phase, the value must be from 0...6 (dB) range.
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maxim,brownout-attack-hold-ms:
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maximum: 255
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default: 0
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description:
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Brownout attack hold phase time in ms, VBATBROWN_ATTK_HOLD, register 0x0018.
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maxim,brownout-timed-hold-ms:
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maximum: 255
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default: 0
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description:
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Brownout timed hold phase time in ms, VBATBROWN_TIME_HOLD, register 0x0019.
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maxim,brownout-release-rate-ms:
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maximum: 255
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default: 0
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description:
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Brownout release phase step time in ms, VBATBROWN_RELEASE, register 0x001A.
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required:
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- compatible
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- reg
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/gpio/gpio.h>
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i2c {
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#address-cells = <1>;
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#size-cells = <0>;
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amplifier@31 {
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compatible = "maxim,max98504";
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reg = <0x31>;
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DIOVDD-supply = <&ldo3_reg>;
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DVDD-supply = <&ldo3_reg>;
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};
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};
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