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

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Date:   Tue, 15 Jun 2021 21:07:37 +0800
From:   Ban Tao <fengzheng923@...il.com>
To:     fengzheng923@...il.com, lgirdwood@...il.com, broonie@...nel.org,
        robh+dt@...nel.org, mripard@...nel.org, wens@...e.org,
        jernej.skrabec@...il.com
Cc:     alsa-devel@...a-project.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-sunxi@...ts.linux.dev,
        linux-kernel@...r.kernel.org
Subject: [PATCH 2/2] ASoC: sun50i-dmic: dt-bindings: add DT bindings for DMIC controller

The Allwinner SoCs feature an I2S controller across multiple SoC
generations.

Signed-off-by: Ban Tao <fengzheng923@...il.com>
---
 .../sound/allwinner,sun50i-h6-dmic.yaml       | 66 +++++++++++++++++++
 1 file changed, 66 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..81d40c374e44
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/allwinner,sun50i-h6-dmic.yaml
@@ -0,0 +1,66 @@
+# SPDX-License-Identifier: (GPL-2.0-only 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 Controller Device Tree Bindings
+
+maintainers:
+  - Ban Tao <fengzheng923@...il.com>
+
+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: apb
+      - const: dmic
+
+  dmas:
+    maxItems: 1
+
+  dma-names:
+    const: rx
+
+  resets:
+    maxItems: 1
+
+required:
+  - "#sound-dai-cells"
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - dmas
+  - dma-names
+  - resets
+
+additionalProperties: false
+
+examples:
+  - |
+    spdif: spdif@...5000 {
+        #sound-dai-cells = <0>;
+        compatible = "allwinner,sun50i-h6-dmic";
+        reg = <0x05095000 0x400>;
+        clocks = <&ccu CLK_BUS_DMIC>, <&ccu CLK_DMIC>;
+        clock-names = "apb", "dmic";
+        dmas = <&dma 7>;
+        dma-names = "rx";
+        resets = <&ccu RST_BUS_DMIC>;
+    };
+
+...
-- 
2.29.0