[PATCH v4 2/2] ASoC: sun50i-dmic: dt-bindings: add DT bindings for DMIC controller

[fengzheng923]

From: Ban Tao <fengzheng923@xxxxxxxxx>

DT binding documentation for this new ASoC driver.

Signed-off-by: Ban Tao <fengzheng923@xxxxxxxxx>
Reviewed-by: Rob Herring <robh@xxxxxxxxxx>

---
v1->v2:
1.Fix some build errors.
---
v2->v3:
1.Fix some build errors.
---
v3->v4:
1.None.
---
 .../sound/allwinner,sun50i-h6-dmic.yaml       | 68 +++++++++++++++++++
 1 file changed, 68 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sound/allwinner,sun50i-h6-dmic.yaml

diff --git a/Documentation/devicetree/bindings/sound/allwinner,sun50i-h6-dmic.yaml b/Documentation/devicetree/bindings/sound/allwinner,sun50i-h6-dmic.yaml
new file mode 100644
index 000000000000..d9107685b78d
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/allwinner,sun50i-h6-dmic.yaml
@@ -0,0 +1,68 @@
+# SPDX-License-Identifier: (GPL-2.0+ OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/allwinner,sun50i-h6-dmic.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner H6 DMIC Device Tree Bindings
+
+maintainers:
+  - Ban Tao <fengzheng923@xxxxxxxxx>
+
+properties:
+  "#sound-dai-cells":
+    const: 0
+
+  compatible:
+    const: allwinner,sun50i-h6-dmic
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: Bus Clock
+      - description: Module Clock
+
+  clock-names:
+    items:
+      - const: bus
+      - const: mod
+
+  dmas:
+    items:
+      - description: RX DMA Channel
+
+  dma-names:
+    items:
+      - const: rx
+
+  resets:
+    maxItems: 1
+
+required:
+  - "#sound-dai-cells"
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - dmas
+  - dma-names
+  - resets
+
+additionalProperties: false
+
+examples:
+  - |
+    dmic: dmic@5095000 {
+      #sound-dai-cells = <0>;
+      compatible = "allwinner,sun50i-h6-dmic";
+      reg = <0x05095000 0x400>;
+      clocks = <&ccu 101>, <&ccu 100>;
+      clock-names = "bus", "mod";
+      dmas = <&dma 7>;
+      dma-names = "rx";
+      resets = <&ccu 42>;
+    };
+
+...
-- 
2.17.1