[PATCH v3 2/2] WIP: dt-bindings: mediatek: mt6359: add codec document

[Jiaxin Yu <jiaxin.yu@mediatek.com>]

This patch adds MediaTek MT6359 codec document.

Signed-off-by: Jiaxin Yu <jiaxin.yu@mediatek.com>
---
 .../devicetree/bindings/sound/mt6359.yaml     | 68 +++++++++++++++++++
 1 file changed, 68 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sound/mt6359.yaml

diff --git a/Documentation/devicetree/bindings/sound/mt6359.yaml b/Documentation/devicetree/bindings/sound/mt6359.yaml
new file mode 100644
index 0000000000000..a669b49965874
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/mt6359.yaml
@@ -0,0 +1,68 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/mt6359.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Mediatek MT6359 Codec Device Tree Bindings
+
+maintainers:
+  - Eason Yen <eason.yen@mediatek.com>
+  - Jiaxin Yu <jiaxin.yu@mediatek.com>
+  - Shane Chien <shane.chien@mediatek.com>
+
+description: |
+  The communication between MT6359 and SoC is through Mediatek PMIC wrapper.
+  For more detail, please visit Mediatek PMIC wrapper documentation.
+  Must be a child node of PMIC wrapper.
+
+properties:
+  compatible:
+    const: mediatek,mt6359-sound
+
+  mediatek,dmic-mode:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      Indicates how many data pins are used to transmit two channels of PDM
+      signal. 0 means two wires, 1 means one wire. Default value is 0.
+    enum:
+      - 0 # one wire
+      - 1 # two wires
+
+  mediatek,mic-type-0:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      Specifies the type of mic type connected to adc0
+
+    enum:
+      - 0 # IDLE - mic in turn-off status
+      - 1 # ACC - analog mic with alternating coupling
+      - 2 # DMIC - digital mic
+      - 3 # DCC - analog mic with direct couping
+      - 4 # DCC_ECM_DIFF - analog electret condenser mic with differential mode
+      - 5 # DCC_ECM_SINGLE - analog electret condenser mic with single mode
+
+  mediatek,mic-type-1:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      Specifies the type of mic type connected to adc1
+
+  mediatek,mic-type-2:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      Specifies the type of mic type connected to adc2
+
+required:
+  - compatible
+
+additionalProperties: false
+
+examples:
+  - |
+    mt6359codec: mt6359codec {
+      compatible = "mediatek,mt6359-sound";
+      mediatek,dmic-mode = <0>;
+      mediatek,mic-type-0 = <2>;
+    };
+
+...
-- 
2.18.0