From 75c7aaa66f5fdabcbaf1e6775c5f85b35b7debaa Mon Sep 17 00:00:00 2001
From: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Date: Tue, 13 Dec 2022 17:24:41 +0900
Subject: [PATCH] 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@socionext.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20221213082449.2721-10-hayashi.kunihiko@socionext.com
Signed-off-by: Rob Herring <robh@kernel.org>
---
.../socionext/socionext,uniphier-sysctrl.yaml | 104 ++++++++++++++++++
MAINTAINERS | 1 +
2 files changed, 105 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 0000000000000..3acb14201d1ae
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/socionext/socionext,uniphier-sysctrl.yaml
@@ -0,0 +1,104 @@
+# 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@socionext.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-sld8-sysctrl
+ - socionext,uniphier-ld11-sysctrl
+ - socionext,uniphier-ld20-sysctrl
+ - socionext,uniphier-pxs3-sysctrl
+ - socionext,uniphier-nx1-sysctrl
+ - const: simple-mfd
+ - const: syscon
+
+ reg:
+ maxItems: 1
+
+ clock-controller:
+ $ref: /schemas/clock/socionext,uniphier-clock.yaml#
+
+ reset-controller:
+ $ref: /schemas/reset/socionext,uniphier-reset.yaml#
+
+ watchdog:
+ $ref: /schemas/watchdog/socionext,uniphier-wdt.yaml#
+
+ thermal-sensor:
+ $ref: /schemas/thermal/socionext,uniphier-thermal.yaml#
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: socionext,uniphier-ld4-sysctrl
+ then:
+ properties:
+ watchdog: false
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - socionext,uniphier-ld4-sysctrl
+ - socionext,uniphier-pro4-sysctrl
+ - socionext,uniphier-sld8-sysctrl
+ - socionext,uniphier-ld11-sysctrl
+ then:
+ properties:
+ thermal-sensor: false
+
+additionalProperties: false
+
+required:
+ - compatible
+ - reg
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ syscon@61840000 {
+ 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 f61eb221415bd..5035336998a3e 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3103,6 +3103,7 @@ 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/
--
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