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Document the Qualcomm WCD9390/WCD9395 Audio Codec and the Soundwire devices than can be found on Qualcomm SM8650 based platforms. The Qualcomm WCD9390/WCD9395 Audio Codec communicates with the host SoC over 2 Soundwire links to provide: - 4 ADC inputs for up to 5 Analog Microphones - 4 DMIC inputs for up to 8 Digital Microphones - 4 Microphone BIAS - Stereo Headphone output - Mono EAR output - MBHC engine for Headset Detection The WCD9390/WCD9395 IC has separate I2C subsystem for USB-C DP Altmode/Audio Accessory mode Mux which is not documented here but requires port/endpoint graph and properties to handle Altmode/Audio Accessory switch and orientation. Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://msgid.link/r/20231219-topic-sm8650-upstream-wcd939x-codec-v4-2-1c3bbff2d7ab@linaro.org Signed-off-by: Mark Brown <broonie@kernel.org>
70 lines
1.7 KiB
YAML
70 lines
1.7 KiB
YAML
# 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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$id: http://devicetree.org/schemas/sound/qcom,wcd939x-sdw.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Qualcomm SoundWire devices on WCD9390/WCD9395
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maintainers:
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- Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
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description: |
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Qualcomm WCD9390/WCD9395 Codec is a standalone Hi-Fi audio codec IC.
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It has RX and TX Soundwire devices. This bindings is for the devices.
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properties:
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compatible:
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const: sdw20217010e00
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reg:
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maxItems: 1
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qcom,tx-port-mapping:
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description: |
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Specifies static port mapping between device and host tx ports.
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In the order of the device port index.
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$ref: /schemas/types.yaml#/definitions/uint32-array
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minItems: 4
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maxItems: 4
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qcom,rx-port-mapping:
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description: |
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Specifies static port mapping between device and host rx ports.
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In the order of device port index.
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$ref: /schemas/types.yaml#/definitions/uint32-array
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minItems: 6
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maxItems: 6
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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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soundwire@3210000 {
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#address-cells = <2>;
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#size-cells = <0>;
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reg = <0x03210000 0x2000>;
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wcd938x_rx: codec@0,4 {
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compatible = "sdw20217010e00";
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reg = <0 4>;
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qcom,rx-port-mapping = <1 2 3 4 5 6>;
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};
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};
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soundwire@3230000 {
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#address-cells = <2>;
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#size-cells = <0>;
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reg = <0x03230000 0x2000>;
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wcd938x_tx: codec@0,3 {
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compatible = "sdw20217010e00";
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reg = <0 3>;
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qcom,tx-port-mapping = <2 3 4 5>;
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};
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};
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...
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