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/sound/ti,ts3a227e.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Texas Instruments TS3A227E |
| 8 | Autonomous Audio Accessory Detection and Configuration Switch |
| 9 | |
| 10 | maintainers: |
| 11 | - Dylan Reid <dgreid@chromium.org> |
| 12 | |
| 13 | description: | |
| 14 | The TS3A227E detect headsets of 3-ring and 4-ring standards and |
| 15 | switches automatically to route the microphone correctly. It also |
| 16 | handles key press detection in accordance with the Android audio |
| 17 | headset specification v1.0. |
| 18 | |
| 19 | properties: |
| 20 | compatible: |
| 21 | enum: |
| 22 | - ti,ts3a227e |
| 23 | |
| 24 | reg: |
| 25 | const: 0x3b |
| 26 | |
| 27 | interrupts: |
| 28 | maxItems: 1 |
| 29 | |
| 30 | ti,micbias: |
| 31 | $ref: /schemas/types.yaml#/definitions/uint32 |
| 32 | description: Intended MICBIAS voltage (datasheet section 9.6.7). |
| 33 | enum: |
| 34 | - 0 # 2.1 V |
| 35 | - 1 # 2.2 V |
| 36 | - 2 # 2.3 V |
| 37 | - 3 # 2.4 V |
| 38 | - 4 # 2.5 V |
| 39 | - 5 # 2.6 V |
| 40 | - 6 # 2.7 V |
| 41 | - 7 # 2.8 V |
| 42 | default: 1 |
| 43 | |
| 44 | ti,debounce-release-ms: |
| 45 | description: key release debounce time in ms (datasheet section 9.6.7). |
| 46 | enum: |
| 47 | - 0 |
| 48 | - 20 |
| 49 | default: 20 |
| 50 | |
| 51 | ti,debounce-press-ms: |
| 52 | description: key press debounce time in ms (datasheet section 9.6.7). |
| 53 | enum: |
| 54 | - 2 |
| 55 | - 40 |
| 56 | - 80 |
| 57 | - 120 |
| 58 | default: 80 |
| 59 | |
| 60 | ti,debounce-insertion-ms: |
| 61 | description: headset insertion debounce time in ms (datasheet section 9.6.5). |
| 62 | enum: |
| 63 | - 2 |
| 64 | - 30 |
| 65 | - 60 |
| 66 | - 90 |
| 67 | - 120 |
| 68 | - 150 |
| 69 | - 1000 |
| 70 | - 2000 |
| 71 | default: 90 |
| 72 | |
| 73 | required: |
| 74 | - compatible |
| 75 | - reg |
| 76 | - interrupts |
| 77 | |
| 78 | additionalProperties: false |
| 79 | |
| 80 | examples: |
| 81 | - | |
| 82 | #include <dt-bindings/interrupt-controller/irq.h> |
| 83 | i2c { |
| 84 | #address-cells = <1>; |
| 85 | #size-cells = <0>; |
| 86 | codec: audio-controller@3b { |
| 87 | compatible = "ti,ts3a227e"; |
| 88 | reg = <0x3b>; |
| 89 | interrupt-parent = <&gpio1>; |
| 90 | interrupts = <3 IRQ_TYPE_LEVEL_LOW>; |
| 91 | }; |
| 92 | }; |
| 93 | |
| 94 | ... |