| # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/sound/samsung,midas-audio.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: Samsung Midas audio complex with WM1811 codec |
| |
| maintainers: |
| - Sylwester Nawrocki <s.nawrocki@samsung.com> |
| |
| allOf: |
| - $ref: sound-card-common.yaml# |
| |
| properties: |
| compatible: |
| const: samsung,midas-audio |
| |
| cpu: |
| type: object |
| additionalProperties: false |
| properties: |
| sound-dai: |
| maxItems: 1 |
| description: phandle to the I2S controller |
| required: |
| - sound-dai |
| |
| codec: |
| type: object |
| additionalProperties: false |
| properties: |
| sound-dai: |
| maxItems: 1 |
| description: phandle to the WM1811 CODEC |
| required: |
| - sound-dai |
| |
| samsung,audio-routing: |
| deprecated: true |
| $ref: /schemas/types.yaml#/definitions/non-unique-string-array |
| description: | |
| List of the connections between audio components; each entry is |
| a pair of strings, the first being the connection's sink, the second |
| being the connection's source; valid names for sources and sinks are |
| the WM1811's pins (as documented in its binding), and the jacks |
| on the board: HP, SPK, Main Mic, Sub Mic, Headset Mic. |
| Deprecated, use audio-routing. |
| |
| mic-bias-supply: |
| description: Supply for the micbias on the Main microphone |
| |
| submic-bias-supply: |
| description: Supply for the micbias on the Sub microphone |
| |
| headset-mic-bias-supply: |
| description: Supply for the micbias on the Headset microphone |
| |
| fm-sel-gpios: |
| maxItems: 1 |
| description: GPIO pin for FM selection |
| |
| lineout-sel-gpios: |
| maxItems: 1 |
| description: GPIO pin for line out selection |
| |
| headset-detect-gpios: |
| maxItems: 1 |
| description: GPIO for detection of headset insertion |
| |
| headset-key-gpios: |
| maxItems: 1 |
| description: GPIO for detection of headset key press |
| |
| io-channels: |
| maxItems: 1 |
| description: IO channel to read micbias voltage for headset detection |
| |
| io-channel-names: |
| const: headset-detect |
| |
| samsung,headset-4pole-threshold-microvolt: |
| minItems: 2 |
| maxItems: 2 |
| description: |
| Array containing minimum and maximum IO channel value for 4-pole |
| (with microphone/button) headsets. If the IO channel value is |
| outside of this range, a 3-pole headset is assumed. |
| |
| samsung,headset-button-threshold-microvolt: |
| minItems: 3 |
| maxItems: 3 |
| description: | |
| Array of minimum (inclusive) IO channel values for headset button |
| detection, in order: "Media", "Volume Up" and "Volume Down". |
| |
| required: |
| - compatible |
| - cpu |
| - codec |
| - audio-routing |
| - mic-bias-supply |
| - submic-bias-supply |
| |
| unevaluatedProperties: false |
| |
| examples: |
| - | |
| #include <dt-bindings/gpio/gpio.h> |
| |
| sound { |
| compatible = "samsung,midas-audio"; |
| model = "Midas"; |
| |
| fm-sel-gpios = <&gpaa0 3 GPIO_ACTIVE_HIGH>; |
| |
| mic-bias-supply = <&mic_bias_reg>; |
| submic-bias-supply = <&submic_bias_reg>; |
| |
| audio-routing = |
| "HP", "HPOUT1L", |
| "HP", "HPOUT1R", |
| |
| "SPK", "SPKOUTLN", |
| "SPK", "SPKOUTLP", |
| "SPK", "SPKOUTRN", |
| "SPK", "SPKOUTRP", |
| |
| "RCV", "HPOUT2N", |
| "RCV", "HPOUT2P", |
| |
| "IN1LP", "Main Mic", |
| "IN1LN", "Main Mic", |
| "IN1RP", "Sub Mic", |
| "IN1LP", "Sub Mic"; |
| |
| cpu { |
| sound-dai = <&i2s0>; |
| }; |
| |
| codec { |
| sound-dai = <&wm1811>; |
| }; |
| |
| }; |
