ASoC: qcom: dt-bindings: add bindings for lpass va macro codec

This binding is for LPASS has internal codec VA macro which is
for connecting with DMICs.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20201105113458.12360-5-srinivas.kandagatla@linaro.orgSigned-off-by: Mark Brown <broonie@kernel.org>

Documentation/devicetree/bindings/sound/qcom,lpass-va-macro.yaml

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/qcom,lpass-va-macro.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: LPASS(Low Power Audio Subsystem) VA Macro audio codec DT bindings
+
+maintainers:
+  - Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
+
+properties:
+  compatible:
+    const: qcom,sm8250-lpass-va-macro
+
+  reg:
+    maxItems: 1
+
+  "#sound-dai-cells":
+    const: 1
+
+  '#clock-cells':
+    const: 0
+
+  clocks:
+    maxItems: 3
+
+  clock-names:
+    items:
+      - const: mclk
+      - const: core
+      - const: dcodec
+
+  clock-output-names:
+    items:
+      - const: fsgen
+
+  qcom,dmic-sample-rate:
+    description: dmic sample rate
+    $ref: /schemas/types.yaml#/definitions/uint32
+
+  vdd-micb-supply:
+    description: phandle to voltage regulator of MIC Bias
+
+required:
+  - compatible
+  - reg
+  - "#sound-dai-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/sound/qcom,q6afe.h>
+    codec@3370000 {
+      compatible = "qcom,sm8250-lpass-va-macro";
+      reg = <0x3370000 0x1000>;
+      #sound-dai-cells = <1>;
+      #clock-cells = <0>;
+      clocks = <&aoncc 0>,
+               <&q6afecc LPASS_HW_MACRO_VOTE LPASS_CLK_ATTRIBUTE_COUPLE_NO>,
+               <&q6afecc LPASS_HW_DCODEC_VOTE LPASS_CLK_ATTRIBUTE_COUPLE_NO>;
+      clock-names = "mclk", "core", "dcodec";
+      clock-output-names = "fsgen";
+      qcom,dmic-sample-rate = <600000>;
+      vdd-micb-supply = <&vreg_s4a_1p8>;
+    };