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authorKunihiko Hayashi <hayashi.kunihiko@socionext.com>2022-12-13 11:24:41 +0300
committerRob Herring <robh@kernel.org>2022-12-27 01:09:29 +0300
commit75c7aaa66f5fdabcbaf1e6775c5f85b35b7debaa (patch)
tree2592f87c27c1ba4572cc2255f990d27548117e9b
parente8c650f62787437f822bffa3c384ab1029d43ea7 (diff)
downloadlinux-75c7aaa66f5fdabcbaf1e6775c5f85b35b7debaa.tar.xz
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>
-rw-r--r--Documentation/devicetree/bindings/soc/socionext/socionext,uniphier-sysctrl.yaml104
-rw-r--r--MAINTAINERS1
2 files changed, 105 insertions, 0 deletions
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..3acb14201d1a
--- /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 f61eb221415b..5035336998a3 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/