[PATCH 4/5] dt-bindings: arm: atmel,at91rm9200-st: convert to DT schema

[Akhila YS]

Convert System Timer binding to YAML format.

Signed-off-by: Akhila YS <akhilayalmati at gmail.com>
---
 .../bindings/arm/atmel,at91rm9200-st.yaml          | 65 ++++++++++++++++++++++
 1 file changed, 65 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/atmel,at91rm9200-st.yaml b/Documentation/devicetree/bindings/arm/atmel,at91rm9200-st.yaml
new file mode 100644
index 000000000000..ac6e2c71969e
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/atmel,at91rm9200-st.yaml
@@ -0,0 +1,65 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/atmel,at91rm9200-st.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Atmel System Timer
+
+maintainers:
+  - Nicolas Ferre <nicolas.ferre at microchip.com>
+  - Claudiu Beznea <claudiu.beznea at microchip.com>
+
+description:
+  The System Timer (ST) module in AT91RM9200 provides periodic tick and
+  alarm capabilities. It is exposed as a simple multi-function device
+  (simple-mfd + syscon) because it shares its register space and interrupt
+  with other System Controller blocks.
+
+properties:
+  compatible:
+    items:
+      - const: atmel,at91rm9200-st
+      - const: syscon
+      - const: simple-mfd
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  watchdog:
+    type: object
+    description: Watchdog timer subnode.
+    properties:
+      compatible:
+        const: atmel,at91rm9200-wdt
+    required:
+      - compatible
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    timer at fffffd00 {
+        compatible = "atmel,at91rm9200-st", "syscon", "simple-mfd";
+        reg = <0xfffffd00 0x100>;
+        interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>;
+        clocks = <&slow_xtal>;
+
+        watchdog {
+                compatible = "atmel,at91rm9200-wdt";
+        };
+    };
+...

-- 
2.43.0