linux-kernel - [PATCH v4 2/4] dt-bindings: soc: sophgo: Add top misc controller of CV18XX/SG200X series SoC

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Message-ID:
 <IA1PR20MB495375AEBA417DB6908CAC98BB2D2@IA1PR20MB4953.namprd20.prod.outlook.com>
Date: Mon, 18 Mar 2024 14:38:49 +0800
From: Inochi Amaoto <inochiama@...look.com>
To: Vinod Koul <vkoul@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Chen Wang <unicorn_wang@...look.com>,
	Inochi Amaoto <inochiama@...look.com>,
	Paul Walmsley <paul.walmsley@...ive.com>,
	Palmer Dabbelt <palmer@...belt.com>,
	Albert Ou <aou@...s.berkeley.edu>
Cc: Jisheng Zhang <jszhang@...nel.org>,
	Liu Gui <kenneth.liu@...hgo.com>,
	Jingbao Qiu <qiujingbao.dlmu@...il.com>,
	dlan@...too.org,
	dmaengine@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-riscv@...ts.infradead.org
Subject: [PATCH v4 2/4] dt-bindings: soc: sophgo: Add top misc controller of CV18XX/SG200X series SoC

CV18XX/SG200X series SoCs have a special top misc system controller,
which provides register access for several devices. In addition to
register access, this system controller also contains some subdevices
(such as dmamux).

Add bindings for top misc controller of CV18XX/SG200X series SoC.

Signed-off-by: Inochi Amaoto <inochiama@...look.com>
---
 .../soc/sophgo/sophgo,cv1800-top-syscon.yaml  | 57 +++++++++++++++++++
 1 file changed, 57 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800-top-syscon.yaml

diff --git a/Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800-top-syscon.yaml b/Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800-top-syscon.yaml
new file mode 100644
index 000000000000..009e45e520d9
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800-top-syscon.yaml
@@ -0,0 +1,57 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/sophgo/sophgo,cv1800-top-syscon.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sophgo CV1800/SG2000 SoC top system controller
+
+maintainers:
+  - Inochi Amaoto <inochiama@...look.com>
+
+description:
+  The Sophgo CV1800/SG2000 SoC top misc system controller provides
+  register access to configure related modules.
+
+properties:
+  compatible:
+    items:
+      - const: sophgo,cv1800-top-syscon
+      - const: syscon
+      - const: simple-mfd
+
+  reg:
+    maxItems: 1
+
+  "#address-cells":
+    const: 1
+
+  "#size-cells":
+    const: 1
+
+required:
+  - compatible
+  - reg
+
+additionalProperties:
+  type: object
+
+examples:
+  - |
+    syscon@...0000 {
+      compatible = "sophgo,cv1800-top-syscon",
+                   "syscon", "simple-mfd";
+      reg = <0x03000000 0x1000>;
+      #address-cells = <1>;
+      #size-cells = <1>;
+
+      dma-router@154 {
+        compatible = "sophgo,cv1800-dmamux";
+        reg = <0x154 0x8>, <0x298 0x4>;
+        #dma-cells = <3>;
+        dma-masters = <&dmac>;
+        dma-requests = <8>;
+      };
+    };
+
+...
--
2.44.0