linux-kernel - [PATCH v22 4/8] dt-bindings: soc: nuvoton: add binding for clock and reset registers

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Date: Mon, 8 Jan 2024 15:54:17 +0200
From: Tomer Maimon <tmaimon77@...il.com>
To: <mturquette@...libre.com>, <sboyd@...nel.org>, <robh+dt@...nel.org>,
	<krzysztof.kozlowski+dt@...aro.org>, <tali.perry1@...il.com>,
	<joel@....id.au>, <venture@...gle.com>, <yuenn@...gle.com>,
	<benjaminfair@...gle.com>
CC: <openbmc@...ts.ozlabs.org>, <linux-clk@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>, Tomer Maimon
	<tmaimon77@...il.com>
Subject: [PATCH v22 4/8] dt-bindings: soc: nuvoton: add binding for clock and reset registers

A nuvoton,*-clk-rst node is present in nuvoton-common-npcm7xx.dtsi and
will be added to nuvoton-common-npcm8xx.dtsi. It is necessary for the
NPCM7xx and NPCM8xx clock and reset drivers, and may later be used to
retrieve SoC model and version information.

This patch adds a binding to describe this node.

Signed-off-by: Tomer Maimon <tmaimon77@...il.com>
---
 .../soc/nuvoton/nuvoton,npcm-clk-rst.yaml     | 40 +++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/soc/nuvoton/nuvoton,npcm-clk-rst.yaml

diff --git a/Documentation/devicetree/bindings/soc/nuvoton/nuvoton,npcm-clk-rst.yaml b/Documentation/devicetree/bindings/soc/nuvoton/nuvoton,npcm-clk-rst.yaml
new file mode 100644
index 000000000000..dfec64a8eb26
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/nuvoton/nuvoton,npcm-clk-rst.yaml
@@ -0,0 +1,40 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/nuvoton/nuvoton,npcm-clk-rst.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Clock and reset registers block in Nuvoton SoCs
+
+maintainers:
+  - Tomer Maimon <tmaimon77@...il.com>
+
+description:
+  The clock and reset registers are a registers block in Nuvoton SoCs that 
+  handle both reset and clock functionality.
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - nuvoton,npcm750-clk-rst
+          - nuvoton,npcm845-clk-rst
+      - const: syscon
+      - const: simple-mfd
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+additionalProperties:
+  type: object
+
+examples:
+  - |
+    clk_rst: syscon@...000 {
+      compatible = "nuvoton,npcm750-clk-rst", "syscon", "simple-mfd";
+      reg = <0x801000 0x6C>;
+    };
-- 
2.34.1