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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/sound/ti,ts3a227e.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Texas Instruments TS3A227E
Autonomous Audio Accessory Detection and Configuration Switch
maintainers:
- Dylan Reid <dgreid@chromium.org>
description: |
The TS3A227E detect headsets of 3-ring and 4-ring standards and
switches automatically to route the microphone correctly. It also
handles key press detection in accordance with the Android audio
headset specification v1.0.
properties:
compatible:
enum:
- ti,ts3a227e
reg:
const: 0x3b
interrupts:
maxItems: 1
ti,micbias:
$ref: /schemas/types.yaml#/definitions/uint32
description: Intended MICBIAS voltage (datasheet section 9.6.7).
enum:
- 0 # 2.1 V
- 1 # 2.2 V
- 2 # 2.3 V
- 3 # 2.4 V
- 4 # 2.5 V
- 5 # 2.6 V
- 6 # 2.7 V
- 7 # 2.8 V
default: 1
ti,debounce-release-ms:
description: key release debounce time in ms (datasheet section 9.6.7).
enum:
- 0
- 20
default: 20
ti,debounce-press-ms:
description: key press debounce time in ms (datasheet section 9.6.7).
enum:
- 2
- 40
- 80
- 120
default: 80
ti,debounce-insertion-ms:
description: headset insertion debounce time in ms (datasheet section 9.6.5).
enum:
- 2
- 30
- 60
- 90
- 120
- 150
- 1000
- 2000
default: 90
required:
- compatible
- reg
- interrupts
additionalProperties: false
examples:
- |
#include <dt-bindings/interrupt-controller/irq.h>
i2c {
#address-cells = <1>;
#size-cells = <0>;
codec: audio-controller@3b {
compatible = "ti,ts3a227e";
reg = <0x3b>;
interrupt-parent = <&gpio1>;
interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
};
};
...
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