[alsa-devel] [PATCH v4 02/12] ASoC: dt-bindings: add dt bindings for WCD9340/WCD9341 audio codec

[Srinivas Kandagatla]

This patch adds bindings for wcd9340/wcd9341 audio codec which can
support both SLIMbus and I2S/I2C interface.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla at linaro.org>
---
 .../bindings/sound/qcom,wcd934x.yaml          | 163 ++++++++++++++++++
 1 file changed, 163 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sound/qcom,wcd934x.yaml

diff --git a/Documentation/devicetree/bindings/sound/qcom,wcd934x.yaml b/Documentation/devicetree/bindings/sound/qcom,wcd934x.yaml
new file mode 100644
index 000000000000..197a53bfa6cb
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/qcom,wcd934x.yaml
@@ -0,0 +1,163 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/qcom,wcd934x.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Bindings for Qualcomm WCD9340/WCD9341 Audio Codec
+
+maintainers:
+  - Srinivas Kandagatla <srinivas.kandagatla at linaro.org>
+
+description: |
+  Qualcomm WCD9340/WCD9341 Codec is a standalone Hi-Fi audio codec IC.
+  It has in-built Soundwire controller, pin controller, interrupt mux and
+  supports both I2S/I2C and SLIMbus audio interfaces.
+
+properties:
+  compatible:
+    const: slim217,250
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  reset-gpios:
+    description: GPIO spec for reset line to use
+    maxItems: 1
+
+  slim-ifc-dev: true
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    const: extclk
+
+  vdd-buck-supply:
+    description: A reference to the 1.8V buck supply
+
+  vdd-buck-sido-supply:
+    description: A reference to the 1.8V SIDO buck supply
+
+  vdd-rx-supply:
+    description: A reference to the 1.8V rx supply
+
+  vdd-tx-supply:
+    description: A reference to the 1.8V tx supply
+
+  vdd-vbat-supply:
+    description: A reference to the vbat supply
+
+  vdd-io-supply:
+    description: A reference to the 1.8V I/O supply
+
+  vdd-micbias-supply:
+    description: A reference to the micbias supply
+
+  qcom,micbias1-microvolt:
+    $ref: '/schemas/types.yaml#/definitions/uint32'
+    description: micbias1 voltage between 1800000 - 2850000 microvolt
+
+  qcom,micbias2-microvolt:
+    $ref: '/schemas/types.yaml#/definitions/uint32'
+    description: micbias2 voltage between 1800000 - 2850000 microvolt
+
+  qcom,micbias3-microvolt:
+    $ref: '/schemas/types.yaml#/definitions/uint32'
+    description: micbias3 voltage between 1800000 - 2850000 microvolt
+
+  qcom,micbias4-microvolt:
+    $ref: '/schemas/types.yaml#/definitions/uint32'
+    description: micbias4 voltage between 1800000 - 2850000 microvolt
+
+  clock-output-names:
+    const: mclk
+
+  clock-frequency:
+    description: Clock frequency of output clk in Hz
+
+  interrupt-controller: true
+
+  '#interrupt-cells':
+    const: 1
+
+  '#clock-cells':
+    const: 0
+
+  '#sound-dai-cells':
+    const: 1
+
+  "#address-cells":
+    const: 1
+
+  "#size-cells":
+    const: 1
+
+patternProperties:
+  "^.*@[0-9a-f]+$":
+    type: object
+    description: |
+      WCD934x subnode for each slave devices. Bindings of each subnodes
+      depends on the specific driver providing the functionality and
+      documented in their respective bindings.
+
+    properties:
+      reg:
+        maxItems: 1
+
+    required:
+      - reg
+
+required:
+  - compatible
+  - reg
+  - reset-gpios
+  - slim-ifc-dev
+  - interrupts
+  - interrupt-controller
+  - clock-frequency
+  - clock-output-names
+  - qcom,micbias1-microvolt
+  - qcom,micbias2-microvolt
+  - qcom,micbias3-microvolt
+  - qcom,micbias4-microvolt
+  - "#interrupt-cells"
+  - "#clock-cells"
+  - "#sound-dai-cells"
+  - "#address-cells"
+  - "#size-cells"
+
+examples:
+  - |
+    codec at 1,0{
+        compatible = "slim217,250";
+        reg  = <1 0>;
+        reset-gpios = <&tlmm 64 0>;
+        slim-ifc-dev  = <&wcd9340_ifd>;
+        #sound-dai-cells = <1>;
+        interrupt-parent = <&tlmm>;
+        interrupts = <54 4>;
+        interrupt-controller;
+        #interrupt-cells = <1>;
+        #clock-cells = <0>;
+        clock-frequency = <9600000>;
+        clock-output-names = "mclk";
+        qcom,micbias1-microvolt = <1800000>;
+        qcom,micbias2-microvolt = <1800000>;
+        qcom,micbias3-microvolt = <1800000>;
+        qcom,micbias4-microvolt = <1800000>;
+        clock-names = "extclk";
+        clocks = <&rpmhcc 2>;
+
+        #address-cells = <1>;
+        #size-cells = <1>;
+
+        gpioctrl at 42 {
+            reg = <0x42 0x2>;
+        };
+    };
+
+...
-- 
2.21.0