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Message-Id: <20221029082135.31096-2-zhuyinbo@loongson.cn>
Date:   Sat, 29 Oct 2022 16:21:35 +0800
From:   Yinbo Zhu <zhuyinbo@...ngson.cn>
To:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Arnd Bergmann <arnd@...db.de>,
        Hector Martin <marcan@...can.st>,
        Lubomir Rintel <lkundrak@...sk>,
        Conor Dooley <conor.dooley@...rochip.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Hitomi Hasegawa <hasegawa-hitomi@...itsu.com>,
        Heiko Stuebner <heiko@...ech.de>,
        Brian Norris <briannorris@...omium.org>,
        Sven Peter <sven@...npeter.dev>, loongarch@...ts.linux.dev,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Yinbo Zhu <zhuyinbo@...ngson.cn>
Subject: [PATCH v3 2/2] dt-bindings: soc: add loongson-2 chipid

Add the Loongson-2 SoC chipid binding with DT schema format using
json-schema.

Signed-off-by: Yinbo Zhu <zhuyinbo@...ngson.cn>
---
Change in v3:
		1. Drop "driver" and describe instead what is GUTS, including
		   its acronym.
		2. Add desciption about the SoC register.
		3. Fixup dts node name.
		4. Replace string loongson2/Loongson2 with loongson-2/Loongson-2
                   in binding file and commit message.

 .../bindings/hwinfo/loongson,ls2k-chipid.yaml | 38 +++++++++++++++++++
 MAINTAINERS                                   |  1 +
 2 files changed, 39 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/hwinfo/loongson,ls2k-chipid.yaml

diff --git a/Documentation/devicetree/bindings/hwinfo/loongson,ls2k-chipid.yaml b/Documentation/devicetree/bindings/hwinfo/loongson,ls2k-chipid.yaml
new file mode 100644
index 000000000000..9d0c36ec1982
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwinfo/loongson,ls2k-chipid.yaml
@@ -0,0 +1,38 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/hwinfo/loongson,ls2k-chipid.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Loongson-2 SoC ChipID
+
+maintainers:
+  - Yinbo Zhu <zhuyinbo@...ngson.cn>
+
+description: |
+  Loongson-2 SoC contains many groups of global utilities register
+  blocks, of which the ChipID group registers record SoC version,
+  feature, vendor and id information.
+
+properties:
+  compatible:
+    const: loongson,ls2k-chipid
+
+  reg:
+    maxItems: 1
+
+  little-endian: true
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    chipid: chipid@...00000 {
+        compatible = "loongson,ls2k-chipid";
+        reg = <0x1fe00000 0x3ffc>;
+        little-endian;
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index a02d45dd21ce..072da0f47f14 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -11934,6 +11934,7 @@ LOONGSON-2 SOC SERIES GUTS DRIVER
 M:	Yinbo Zhu <zhuyinbo@...ngson.cn>
 L:	loongarch@...ts.linux.dev
 S:	Maintained
+F:	Documentation/devicetree/bindings/hwinfo/loongson,ls2k-chipid.yaml
 F:	drivers/soc/loongson/loongson2_guts.c
 
 LSILOGIC MPT FUSION DRIVERS (FC/SAS/SPI)
-- 
2.31.1

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