linux-kernel - [PATCH v2 2/4] dt-bindings: soc: sophgo: Add Sophgo syscon module

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Date:   Mon, 27 Nov 2023 08:58:56 +0800
From:   Chen Wang <unicornxw@...il.com>
To:     aou@...s.berkeley.edu, chao.wei@...hgo.com, conor@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, mturquette@...libre.com,
        palmer@...belt.com, paul.walmsley@...ive.com,
        richardcochran@...il.com, robh+dt@...nel.org, sboyd@...nel.org,
        devicetree@...r.kernel.org, linux-clk@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org,
        haijiao.liu@...hgo.com, xiaoguang.xing@...hgo.com,
        guoren@...nel.org, jszhang@...nel.org, inochiama@...look.com,
        samuel.holland@...ive.com
Cc:     Chen Wang <unicorn_wang@...look.com>
Subject: [PATCH v2 2/4] dt-bindings: soc: sophgo: Add Sophgo syscon module

From: Chen Wang <unicorn_wang@...look.com>

Add documentation to describe Sophgo System Controller Registers for
SG2042.

Signed-off-by: Chen Wang <unicorn_wang@...look.com>
---
 .../soc/sophgo/sophgo,sg2042-syscon.yaml      | 58 +++++++++++++++++++
 1 file changed, 58 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/soc/sophgo/sophgo,sg2042-syscon.yaml

diff --git a/Documentation/devicetree/bindings/soc/sophgo/sophgo,sg2042-syscon.yaml b/Documentation/devicetree/bindings/soc/sophgo/sophgo,sg2042-syscon.yaml
new file mode 100644
index 000000000000..329d645091b4
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/sophgo/sophgo,sg2042-syscon.yaml
@@ -0,0 +1,58 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/sophgo/sophgo,sg2042-syscon.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sophgo SG2042 SoC system controller
+
+maintainers:
+  - Chen Wang <unicorn_wang@...look.com>
+
+description:
+  The Sophgo SG2042 SoC system controller provides register information such
+  as offset, mask and shift to configure some modules, such as clocks, reset
+  signals and pinctrl.
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - sophgo,sg2042-syscon
+      - const: syscon
+
+  reg:
+    maxItems: 1
+
+  clock-controller:
+    # Child node
+    type: object
+    $ref: ../../clock/sophgo/sophgo,sg2042-clkgen.yaml
+    description:
+      Clock controller for the SoC clocks. This child node definition
+      should follow the bindings specified in
+      Documentation/devicetree/bindings/clock/sophgo/sophgo,sg2042-clkgen.yaml
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    syscon@...10000 {
+        compatible = "sophgo,sg2042-syscon", "syscon";
+        reg = <0x30010000 0x1000>;
+    };
+
+    syscon@...20000 {
+        compatible = "sophgo,sg2042-syscon", "syscon";
+        reg = <0x30020000 0x1000>;
+
+        clock-controller {
+            compatible = "sophgo,sg2042-clkgen";
+            clocks = <&osc>;
+            #clock-cells = <1>;
+        };
+    };
-- 
2.25.1