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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/Documentation/devicetree/bindings/arm/atmel,at91rm9200-st.yaml
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

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%YAML 1.2

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---

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$id: http://devicetree.org/schemas/arm/atmel,at91rm9200-st.yaml#

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$schema: http://devicetree.org/meta-schemas/core.yaml#

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title: Atmel System Timer

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maintainers:

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  - Nicolas Ferre <nicolas.ferre@microchip.com>

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  - Claudiu Beznea <claudiu.beznea@tuxon.dev>

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description:

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  The System Timer (ST) module in AT91RM9200 provides periodic tick and

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  alarm capabilities. It is exposed as a simple multi-function device

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  (simple-mfd + syscon) because it shares its register space and interrupt

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  with other System Controller blocks.

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properties:

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  compatible:

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    items:

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      - const: atmel,at91rm9200-st

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      - const: syscon

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      - const: simple-mfd

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  reg:

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    maxItems: 1

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  interrupts:

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    maxItems: 1

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  clocks:

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    maxItems: 1

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  "#address-cells":

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    const: 1

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  "#size-cells":

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    const: 1

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patternProperties:

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  "^watchdog@[0-9a-f]+$":

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    $ref: /schemas/watchdog/atmel,at91rm9200-wdt.yaml#

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required:

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  - compatible

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  - reg

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  - interrupts

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  - clocks

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unevaluatedProperties: false

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examples:

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  - |

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    #include <dt-bindings/interrupt-controller/irq.h>

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    timer@fffffd00 {

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        compatible = "atmel,at91rm9200-st", "syscon", "simple-mfd";

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        reg = <0xfffffd00 0x100>;

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        interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>;

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        clocks = <&slow_xtal>;

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        #address-cells = <1>;

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        #size-cells = <1>;

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        watchdog@fffffd40 {

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            compatible = "atmel,at91rm9200-wdt";

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            reg = <0xfffffd40 0x40>;

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        };

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    };

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...

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