dt-bindings: rtc: nuvoton: add NCT3018Y Real Time Clock

Document devicetree bindings for the Nuvoton NCT3018Y Real Time Clock.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mia Lin <mimi05633@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20220713090647.8028-2-mimi05633@gmail.com

diff --git a/Documentation/devicetree/bindings/rtc/nuvoton,nct3018y.yaml b/Documentation/devicetree/bindings/rtc/nuvoton,nct3018y.yaml
new file mode 100644 (file)
index 0000000..7a1857f
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/nuvoton,nct3018y.yaml
@@ -0,0 +1,45 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/rtc/nuvoton,nct3018y.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NUVOTON NCT3018Y Real Time Clock
+
+allOf:
+  - $ref: "rtc.yaml#"
+
+maintainers:
+  - Medad CChien <ctcchien@nuvoton.com>
+  - Mia Lin <mimi05633@gmail.com>
+
+properties:
+  compatible:
+    const: nuvoton,nct3018y
+
+  reg:
+    maxItems: 1
+
+  start-year: true
+
+  reset-source: true
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        rtc@6f {
+            compatible = "nuvoton,nct3018y";
+            reg = <0x6f>;
+        };
+    };
+
+...

diff --git a/MAINTAINERS b/MAINTAINERS
index 69a960561e379d55c9f87e10cee4ba62d9e00909..9be1d80dc03c4a4b8cc479fdb96fe635081a71df 100644 (file)
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2446,6 +2446,7 @@ S:        Supported
 F:     Documentation/devicetree/bindings/*/*/*npcm*
 F:     Documentation/devicetree/bindings/*/*npcm*
 F:     Documentation/devicetree/bindings/arm/npcm/*
+F:     Documentation/devicetree/bindings/rtc/nuvoton,nct3018y.yaml
 F:     arch/arm/boot/dts/nuvoton-npcm*
 F:     arch/arm/mach-npcm/
 F:     drivers/*/*npcm*