[PATCH 2/2 V2] ASoC: tas5756m: Add DT binding document

[Charles-Antoine Couret]

Document the bindings for the tas5756m driver.

Signed-off-by: Charles-Antoine Couret <charles-antoine.couret at mind.be>
---
 .../devicetree/bindings/sound/tas5756m.yaml   | 64 +++++++++++++++++++
 1 file changed, 64 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sound/tas5756m.yaml

diff --git a/Documentation/devicetree/bindings/sound/tas5756m.yaml b/Documentation/devicetree/bindings/sound/tas5756m.yaml
new file mode 100644
index 000000000000..47be70f1633a
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/tas5756m.yaml
@@ -0,0 +1,64 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+
+$id: "http://devicetree.org/schemas/tas5756m.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: TAS5756M audio codec Device Tree Bindings
+
+maintainers:
+  - Charles-Antoine Couret <charles-antoine.couret at mind.be>
+
+description: |
+  You can read datasheets there:
+  http://www.ti.com/lit/ds/symlink/tas5754m.pdf
+  http://www.ti.com/lit/ds/symlink/tas5756m.pdf
+
+  TAS5754M datasheet has a more complete datasheet about register mapping
+  which is common with TAS5756M.
+
+  Those devices have a programmable DSP whith several modes named hybridflow.
+  More details about it there: http://www.ti.com/lit/ug/slau577a/slau577a.pdf
+
+properties:
+  compatible:
+    enum:
+      - "ti,tas5756m"
+      - "ti,tas5754m"
+
+  reg:
+    maxItems: 1
+    description: I2C slave address
+
+  "#sound-dai-cells":
+    const: 0
+
+  mute-gpios
+    maxItems: 1
+    description: GPIO wired to the mute pin.
+
+  ti,hybridflow
+    description: |
+      Select the HybridFlow DSP program.
+      If not supplied default DSP program is used instead.
+    allOf:
+      - $ref: /schemas/types.yaml#/definitions/uint32
+      - enum: [1, 2, 3, 4, 5, 6, 7, 8, 9]
+
+additionalProperties: false
+
+required:
+  - "#sound-dai-cells"
+  - compatible
+  - reg
+
+examples:
+  - |
+    tas5756m: tas5756m at 4c {
+        compatible = "ti,tas5756m";
+        reg = <0x4c>;
+        #sound-dai-cells = <0>;
+
+        ti,hybridflow = <6>;
+        mute-gpios = <&gpio1 11 GPIO_ACTIVE_LOW>;
+    };
-- 
2.24.1