ASoC: dt-bindings: qcom: add Tambora WCD9378 SDCA codec

Describe the WCD9378 SoundWire peripheral which is SDCA compatible soundwire device. It provides SDCA SimpleJack for headphone playback headset mic capture and MBHC jack detection. The same silicon is integrated in two ways and enumerates with the same SoundWire class ID: mobile mode: two slaves (tx, rx) on separate SoundWire masters. SDCA / compute mode: one aggregated slave on a multi-lane master. Note: both of them have different bus toplogies 1 device vs 2 devices. Currently only compute mode is supported by this bindings, mobile mode will extend this binding as required. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com> Link: https://patch.msgid.link/20260925161049.758913-7-srinivas.kandagatla@oss.qualcomm.com Signed-off-by: Mark Brown <broonie@kernel.org>
2026-11-07 06:17:02 +01:00 · 2026-09-25 17:10:47 +01:00 · 2026-09-25 17:10:47 +01:00 · a36d24da5c
commit a36d24da5c
parent e0e876c99f
1 changed files with 105 additions and 0 deletions
--- a/Documentation/devicetree/bindings/sound/qcom,wcd9378-sdw.yaml
+++ b/Documentation/devicetree/bindings/sound/qcom,wcd9378-sdw.yaml
@ -0,0 +1,105 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/qcom,wcd9378-sdw.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm WCD9378 (Tambora) SoundWire codec
+
+maintainers:
+  - Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
+
+description:
+  Qualcomm WCD9378 (Tambora) SoundWire codec. The same silicon can be
+  fused for a mobile (non-SDCA) mode or an SDCA-compliant mode; the
+  qcom,sdca-compliant property selects the latter and is required by
+  this driver.
+
+allOf:
+  - $ref: dai-common.yaml#
+
+properties:
+  compatible:
+    const: sdw20217011000
+
+  reg:
+    maxItems: 1
+
+  qcom,sdca-compliant:
+    description:
+      Present when the codec is fused as SDCA-compliant. The mobile
+      (non-SDCA) variant carries the same class-ID compatible and is
+      handled by a different driver.
+    type: boolean
+
+  qcom,port-mapping:
+    description:
+      Each entry maps a slave data port to a master data port.
+      Entries are in order starting from slave port 1; slave port 0
+      is reserved and not represented. SDCA-compliant mode uses 8
+      entries covering DP1..DP8.
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    minItems: 8
+    maxItems: 8
+
+  reset-gpios:
+    description: GPIO used to release the codec from reset.
+    maxItems: 1
+
+  vdd-buck-supply:
+    description: 1.8 V analog buck supply.
+
+  vdd-rxtx-supply:
+    description: 1.8 V RX/TX supply.
+
+  vdd-io-supply:
+    description: Digital I/O supply.
+
+  vdd-mic-bias-supply:
+    description: Mic bias supply.
+
+  '#sound-dai-cells':
+    const: 1
+
+required:
+  - compatible
+  - reg
+  - qcom,sdca-compliant
+  - qcom,port-mapping
+  - reset-gpios
+  - vdd-buck-supply
+  - vdd-rxtx-supply
+  - vdd-io-supply
+  - vdd-mic-bias-supply
+  - '#sound-dai-cells'
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+
+    soundwire@7630000 {
+        reg = <0x07630000 0x10000>;
+        #address-cells = <2>;
+        #size-cells = <0>;
+
+        wcd9378c_sdw: audio-codec@0,3 {
+            compatible = "sdw20217011000";
+            reg = <0 3>;
+
+            qcom,sdca-compliant;
+
+            qcom,port-mapping = <2 2 3 4 5 6 7 8>;
+
+            reset-gpios = <&tlmm 191 GPIO_ACTIVE_LOW>;
+
+            vdd-buck-supply = <&vreg_l15b_1p8>;
+            vdd-rxtx-supply = <&vreg_l15b_1p8>;
+            vdd-io-supply = <&vreg_l18b_1p2>;
+            vdd-mic-bias-supply = <&vreg_bob1>;
+
+            #sound-dai-cells = <1>;
+        };
+    };
+...