linux-kernel - [PATCH 1/8] dt-bindings: sound: sophgo: add CV1800B I2S/TDM controller binding

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Message-Id: <20260115-cv1800b-i2s-driver-v1-1-e8b22b8578ab@gmail.com>
Date: Thu, 15 Jan 2026 23:17:38 +0400
From: "Anton D. Stavinskii" <stavinsky@...il.com>
To: Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Chen Wang <unicorn_wang@...look.com>, 
 Inochi Amaoto <inochiama@...il.com>, Jaroslav Kysela <perex@...ex.cz>, 
 Takashi Iwai <tiwai@...e.com>, Paul Walmsley <pjw@...nel.org>, 
 Palmer Dabbelt <palmer@...belt.com>, Albert Ou <aou@...s.berkeley.edu>, 
 Alexandre Ghiti <alex@...ti.fr>
Cc: linux-sound@...r.kernel.org, devicetree@...r.kernel.org, 
 sophgo@...ts.linux.dev, linux-kernel@...r.kernel.org, 
 linux-riscv@...ts.infradead.org, 
 "Anton D. Stavinskii" <stavinsky@...il.com>
Subject: [PATCH 1/8] dt-bindings: sound: sophgo: add CV1800B I2S/TDM
 controller binding

Purpose: introduce DT schema for the CPU driver

Signed-off-by: Anton D. Stavinskii <stavinsky@...il.com>
---
 .../bindings/sound/sophgo,cv1800b-i2s.yaml         | 75 ++++++++++++++++++++++
 1 file changed, 75 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/sophgo,cv1800b-i2s.yaml b/Documentation/devicetree/bindings/sound/sophgo,cv1800b-i2s.yaml
new file mode 100644
index 000000000000..cf30880a62da
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/sophgo,cv1800b-i2s.yaml
@@ -0,0 +1,75 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/sophgo,cv1800b-i2s.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sophgo CV1800B I2S/TDM controller
+
+maintainers:
+  - Anton D. Stavinskii <stavinsky@...il.com>
+
+description: |
+  I2S/TDM controller found in CV1800B / Sophgo SG2002/SG2000 SoCs.
+
+properties:
+  compatible:
+    const: sophgo,cv1800b-i2s
+
+  reg:
+    maxItems: 1
+
+  "#sound-dai-cells":
+    const: 0
+
+  clocks:
+    minItems: 1
+    maxItems: 2
+
+  clock-names:
+    items:
+      - const: i2s
+      - const: mclk
+
+  dmas:
+    maxItems: 2
+
+  dma-names:
+    description: |
+      Names of DMA channels. May be omitted. If present, one entry
+      selects a single direction, while two entries select RX and TX.
+    minItems: 1
+    maxItems: 2
+    items:
+      enum: [rx, tx]
+
+  "#address-cells":
+    const: 1
+
+  "#size-cells":
+    const: 0
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - "#sound-dai-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/sophgo,cv1800.h>
+
+    i2s1: i2s@...0000 {
+        compatible = "sophgo,cv1800b-i2s";
+        reg = <0x04110000 0x10000>;
+        #address-cells = <1>;
+        #size-cells = <0>;
+        clocks = <&clk CLK_APB_I2S1>,  <&clk CLK_SDMA_AUD1>;
+        clock-names = "i2s", "mclk";
+        dmas = <&dmamux 2 1>, <&dmamux 3 1>;
+        dma-names = "rx", "tx";
+    };
+...

-- 
2.43.0