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