linux-kernel - [PATCH v8 2/5] dt-bindings: soc: sophgo: Add Sophgo system control module

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Date: Tue, 16 Jan 2024 15:21:15 +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 v8 2/5] dt-bindings: soc: sophgo: Add Sophgo system control module

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

Add documentation to describe Sophgo System Control for SG2042.

Signed-off-by: Chen Wang <unicorn_wang@...look.com>
---
 .../soc/sophgo/sophgo,sg2042-sysctrl.yaml     | 46 +++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/soc/sophgo/sophgo,sg2042-sysctrl.yaml

diff --git a/Documentation/devicetree/bindings/soc/sophgo/sophgo,sg2042-sysctrl.yaml b/Documentation/devicetree/bindings/soc/sophgo/sophgo,sg2042-sysctrl.yaml
new file mode 100644
index 000000000000..7b50bb56b4cf
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/sophgo/sophgo,sg2042-sysctrl.yaml
@@ -0,0 +1,46 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/sophgo/sophgo,sg2042-sysctrl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sophgo SG2042 SoC system control
+
+maintainers:
+  - Chen Wang <unicorn_wang@...look.com>
+
+description:
+  The Sophgo system control is a registers block (SYS_CTRL), providing multiple
+  low level platform functions like chip configuration, clock control, etc.
+
+properties:
+  compatible:
+    const: sophgo,sg2042-sysctrl
+
+  reg:
+    maxItems: 1
+
+  clock-controller:
+    # Child node
+    $ref: /schemas/clock/sophgo,sg2042-sysclk.yaml#
+    type: object
+
+required:
+  - compatible
+  - reg
+  - clock-controller
+
+additionalProperties: false
+
+examples:
+  - |
+    system-control@...10000 {
+        compatible = "sophgo,sg2042-sysctrl";
+        reg = <0x30010000 0x1000>;
+
+        clock-controller {
+          compatible = "sophgo,sg2042-sysclk";
+          clocks = <&cgi_main>, <&cgi_dpll0>, <&cgi_dpll1>;
+          #clock-cells = <1>;
+        };
+    };
-- 
2.25.1