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Message-Id: <20221129103509.9958-2-hayashi.kunihiko@socionext.com>
Date:   Tue, 29 Nov 2022 19:35:02 +0900
From:   Kunihiko Hayashi <hayashi.kunihiko@...ionext.com>
To:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc:     Masami Hiramatsu <mhiramat@...nel.org>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Kunihiko Hayashi <hayashi.kunihiko@...ionext.com>
Subject: [PATCH 1/8] dt-bindings: soc: socionext: Add UniPhier system controller

Add devicetree binding schema for the system controller implemented on
Socionext Uniphier SoCs.

This system controller has multiple functions such as clock control,
reset control, internal watchdog timer, thermal management, and so on.

Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@...ionext.com>
---
 .../socionext/socionext,uniphier-sysctrl.yaml | 84 +++++++++++++++++++
 MAINTAINERS                                   |  1 +
 2 files changed, 85 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/soc/socionext/socionext,uniphier-sysctrl.yaml

diff --git a/Documentation/devicetree/bindings/soc/socionext/socionext,uniphier-sysctrl.yaml b/Documentation/devicetree/bindings/soc/socionext/socionext,uniphier-sysctrl.yaml
new file mode 100644
index 000000000000..e966ce1e4b6c
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/socionext/socionext,uniphier-sysctrl.yaml
@@ -0,0 +1,84 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/socionext/socionext,uniphier-sysctrl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Socionext UniPhier system controller
+
+maintainers:
+  - Kunihiko Hayashi <hayashi.kunihiko@...ionext.com>
+
+description: |+
+  System controller implemented on Socionext UniPhier SoCs has multiple
+  functions such as clock control, reset control, internal watchdog timer,
+  thermal management, and so on.
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - socionext,uniphier-ld4-sysctrl
+          - socionext,uniphier-pro4-sysctrl
+          - socionext,uniphier-pro5-sysctrl
+          - socionext,uniphier-pxs2-sysctrl
+          - socionext,uniphier-ld6b-sysctrl
+          - socionext,uniphier-sld8-sysctrl
+          - socionext,uniphier-ld11-sysctrl
+          - socionext,uniphier-ld20-sysctrl
+          - socionext,uniphier-pxs3-sysctrl
+          - socionext,uniphier-nx1-sysctrl
+          - socionext,uniphier-sysctrl
+      - const: simple-mfd
+      - const: syscon
+
+  reg:
+    maxItems: 1
+
+patternProperties:
+  "^clock-controller(@[0-9a-f]+)?$":
+    $ref: /schemas/clock/socionext,uniphier-clock.yaml#
+
+  "^reset-controller(@[0-9a-f]+)?$":
+    $ref: /schemas/reset/socionext,uniphier-reset.yaml#
+
+  "^watchdog(@[0-9a-f]+)?$":
+    $ref: /schemas/watchdog/socionext,uniphier-wdt.yaml#
+
+  "^thermal-sensor(@[0-9a-f]+)?$":
+    $ref: /schemas/thermal/socionext,uniphier-thermal.yaml#
+
+additionalProperties: false
+
+required:
+  - compatible
+  - reg
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    syscon@...40000 {
+        compatible = "socionext,uniphier-ld20-sysctrl",
+                     "simple-mfd", "syscon";
+        reg = <0x61840000 0x4000>;
+
+        clock-controller {
+            compatible = "socionext,uniphier-ld20-clock";
+            #clock-cells = <1>;
+        };
+
+        reset-controller {
+            compatible = "socionext,uniphier-ld20-reset";
+            #reset-cells = <1>;
+        };
+
+        watchdog {
+            compatible = "socionext,uniphier-wdt";
+        };
+
+        thermal-sensor {
+            compatible = "socionext,uniphier-ld20-thermal";
+            interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
+            #thermal-sensor-cells = <0>;
+        };
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index 1df62c469bd9..366ce3c94d6b 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3059,6 +3059,7 @@ S:	Maintained
 F:	Documentation/devicetree/bindings/arm/socionext/uniphier.yaml
 F:	Documentation/devicetree/bindings/gpio/socionext,uniphier-gpio.yaml
 F:	Documentation/devicetree/bindings/pinctrl/socionext,uniphier-pinctrl.yaml
+F:	Documentation/devicetree/bindings/soc/socionext/socionext,uniphier*.yaml
 F:	arch/arm/boot/dts/uniphier*
 F:	arch/arm/include/asm/hardware/cache-uniphier.h
 F:	arch/arm/mach-uniphier/
-- 
2.25.1

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