diff mbox series

[v3,3/3] dt-bindings: timer: atmel,at91rm9200-st: convert to yaml

Message ID 20230530090758.1652329-4-claudiu.beznea@microchip.com
State New
Headers show
Series dt-bindings: timer: Microchip AT91 convert to YAML | expand

Commit Message

Claudiu Beznea May 30, 2023, 9:07 a.m. UTC 
Convert Microchip AT91 system timer to YAML.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Reviewed-by: Conor Dooley <conor.dooley@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

Comments

Krzysztof Kozlowski May 31, 2023, 8:58 a.m. UTC | #1 
On 30/05/2023 11:07, Claudiu Beznea wrote:
> Convert Microchip AT91 system timer to YAML.
> 
> Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
> Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
> ---

Thank you for your patch. There is something to discuss/improve.

> +properties:
> +  compatible:
> +    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 (memory controller, debug unit, system timer,
> +      real-time clock, power management controller).
> +    maxItems: 1
> +
> +  clocks:
> +    maxItems: 1
> +
> +  watchdog:
> +    $ref: ../watchdog/atmel,at91rm9200-wdt.yaml

Full path, so /schemas/watchdog/atmel....

> +    description:
> +      Child node describing watchdog.
> +


Best regards,
Krzysztof
diff mbox series

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..12d0bb7bd0c8
--- /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: Microchip AT91 System Timer (ST)
+
+maintainers:
+  - Nicolas Ferre <nicolas.ferre@microchip.com>
+  - Alexandre Belloni <alexandre.belloni@bootlin.com>
+  - Claudiu Beznea <claudiu.beznea@microchip.com>
+
+description:
+  Microchip AT91 system timer integrates a period interval timer, a watchdog
+  timer and a real-time timer.
+
+properties:
+  compatible:
+    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 (memory controller, debug unit, system timer,
+      real-time clock, power management controller).
+    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/interrupt-controller/irq.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";
+        };
+    };
+
+...