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[5/5] dt-bindings: timer: atmel,at91rm9200-st: convert to yaml

Message ID 20230525125602.640855-6-claudiu.beznea@microchip.com
State Superseded
Headers show
Series dt-bindings: timer: AT91 convert to YAML | expand

Commit Message

Claudiu Beznea May 25, 2023, 12:56 p.m. UTC 
Convert Atmel system timer to YAML.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
---
 .../devicetree/bindings/arm/atmel-sysregs.txt |  9 ---
 .../bindings/timer/atmel,at91rm9200-st.yaml   | 66 +++++++++++++++++++
 2 files changed, 66 insertions(+), 9 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/timer/atmel,at91rm9200-st.yaml
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Patch

diff --git a/Documentation/devicetree/bindings/arm/atmel-sysregs.txt b/Documentation/devicetree/bindings/arm/atmel-sysregs.txt
index 54d3f586403e..68c0eacb01ac 100644
--- a/Documentation/devicetree/bindings/arm/atmel-sysregs.txt
+++ b/Documentation/devicetree/bindings/arm/atmel-sysregs.txt
@@ -4,15 +4,6 @@  Chipid required properties:
 - compatible: Should be "atmel,sama5d2-chipid" or "microchip,sama7g5-chipid"
 - reg : Should contain registers location and length
 
-System Timer (ST) required properties:
-- compatible: Should be "atmel,at91rm9200-st", "syscon", "simple-mfd"
-- reg: Should contain registers location and length
-- interrupts: Should contain interrupt for the ST which is the IRQ line
-  shared across all System Controller members.
-- clocks: phandle to input clock.
-Its subnodes can be:
-- watchdog: compatible should be "atmel,at91rm9200-wdt"
-
 RAMC SDRAM/DDR Controller required properties:
 - compatible: Should be "atmel,at91rm9200-sdramc", "syscon"
 			"atmel,at91sam9260-sdramc",
diff --git a/Documentation/devicetree/bindings/timer/atmel,at91rm9200-st.yaml b/Documentation/devicetree/bindings/timer/atmel,at91rm9200-st.yaml
new file mode 100644
index 000000000000..08ee459d9fa3
--- /dev/null
+++ b/Documentation/devicetree/bindings/timer/atmel,at91rm9200-st.yaml
@@ -0,0 +1,66 @@ 
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/timer/atmel,at91rm9200-st.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Atmel System Timer (ST)
+
+maintainers:
+  - Nicolas Ferre <nicolas.ferre@microchip.com>
+  - Alexandre Belloni <alexandre.belloni@microchip.com>
+  - Claudiu Beznea <claudiu.beznea@microchip.com>
+
+description:
+  Atmel system timer integrates a period interval timer, a watchdog timer and a
+  real-time timer.
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - const: atmel,at91rm9200-st
+          - const: syscon
+          - const: simple-mfd
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    description:
+      Contain interrupt for the ST which is the IRQ line shared across all
+      system controller members.
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  watchdog:
+    $ref: ../watchdog/atmel,at91rm9200-wdt.yaml
+    description:
+      Child node describing watchdog.
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/at91.h>
+
+    st: timer@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";
+        };
+    };
+
+...