new file mode 100644
@@ -0,0 +1,170 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/google,sc7280-herobrine.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Google SC7280-Herobrine ASoC sound card driver
+
+maintainers:
+ - Srinivasa Rao Mandadapu <srivasam@codeaurora.org>
+ - Judy Hsiao <judyhsiao@chromium.org>
+
+description:
+ This binding describes the SC7280 sound card which uses LPASS for audio.
+
+properties:
+ compatible:
+ enum:
+ - google,sc7280-herobrine
+
+ audio-routing:
+ $ref: /schemas/types.yaml#/definitions/non-unique-string-array
+ description:
+ A 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.
+
+ model:
+ $ref: /schemas/types.yaml#/definitions/string
+ description: User specified audio sound card name
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+patternProperties:
+ "^dai-link@[0-9a-f]$":
+ description:
+ Each subnode represents a dai link. Subnodes of each dai links would be
+ cpu/codec dais.
+
+ type: object
+
+ properties:
+ link-name:
+ description: Indicates dai-link name and PCM stream name.
+ $ref: /schemas/types.yaml#/definitions/string
+ maxItems: 1
+
+ reg:
+ maxItems: 1
+ description: dai link address.
+
+ cpu:
+ description: Holds subnode which indicates cpu dai.
+ type: object
+ properties:
+ sound-dai: true
+
+ codec:
+ description: Holds subnode which indicates codec dai.
+ type: object
+ properties:
+ sound-dai: true
+
+ required:
+ - link-name
+ - cpu
+ - codec
+ - reg
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - model
+ - "#address-cells"
+ - "#size-cells"
+
+additionalProperties: false
+
+examples:
+
+ - |
+ #include <dt-bindings/sound/qcom,lpass.h>
+ sound {
+ compatible = "google,sc7280-herobrine";
+ model = "sc7280-wcd938x-max98360a-4dmic";
+
+ audio-routing =
+ "IN1_HPHL", "HPHL_OUT",
+ "IN2_HPHR", "HPHR_OUT",
+ "AMIC1", "MIC BIAS1",
+ "AMIC2", "MIC BIAS2",
+ "VA DMIC0", "MIC BIAS3",
+ "VA DMIC1", "MIC BIAS3",
+ "VA DMIC2", "MIC BIAS4",
+ "VA DMIC3", "MIC BIAS4",
+ "TX SWR_ADC0", "ADC1_OUTPUT",
+ "TX SWR_ADC1", "ADC2_OUTPUT",
+ "TX SWR_ADC2", "ADC3_OUTPUT",
+ "TX SWR_DMIC0", "DMIC1_OUTPUT",
+ "TX SWR_DMIC1", "DMIC2_OUTPUT",
+ "TX SWR_DMIC2", "DMIC3_OUTPUT",
+ "TX SWR_DMIC3", "DMIC4_OUTPUT";
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ dai-link@0 {
+ link-name = "WCD Playback";
+ reg = <LPASS_CDC_DMA_RX0>;
+ cpu {
+ sound-dai = <&lpass_cpu LPASS_CDC_DMA_RX0>;
+ };
+
+ codec {
+ sound-dai = <&wcd938x 0>, <&swr0 0>, <&rxmacro 0>;
+ };
+ };
+ dai-link@1 {
+ link-name = "WCD Capture";
+ reg = <LPASS_CDC_DMA_TX3>;
+ cpu {
+ sound-dai = <&lpass_cpu LPASS_CDC_DMA_TX3>;
+ };
+
+ codec {
+ sound-dai = <&wcd938x 1>, <&swr1 0>, <&txmacro 0>;
+ };
+ };
+
+ dai-link@2 {
+ link-name = "MI2S Playback";
+ reg = <MI2S_SECONDARY>;
+ cpu {
+ sound-dai = <&lpass_cpu MI2S_SECONDARY>;
+ };
+
+ codec {
+ sound-dai = <&max98360a>;
+ };
+ };
+
+ dai-link@3 {
+ link-name = "DMIC Capture";
+ reg = <LPASS_CDC_DMA_VA_TX0>;
+ cpu {
+ sound-dai = <&lpass_cpu LPASS_CDC_DMA_VA_TX0>;
+ };
+
+ codec {
+ sound-dai = <&vamacro 0>;
+ };
+ };
+
+ dai-link@5 {
+ link-name = "DP Playback";
+ reg = <LPASS_DP_RX>;
+ cpu {
+ sound-dai = <&lpass_cpu LPASS_DP_RX>;
+ };
+
+ codec {
+ sound-dai = <&mdss_dp>;
+ };
+ };
+ };
Add devicetree bindings documentation file for sc7280 sound card registration. Signed-off-by: Srinivasa Rao Mandadapu <srivasam@codeaurora.org> --- This patch depends on the dt-bindings header patch -- https://patchwork.kernel.org/project/alsa-devel/list/?series=543829 .../bindings/sound/google,sc7280-herobrine.yaml | 170 +++++++++++++++++++++ 1 file changed, 170 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/google,sc7280-herobrine.yaml