| # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/watchdog/fsl-imx-wdt.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: Freescale i.MX Watchdog Timer (WDT) Controller |
| |
| maintainers: |
| - Shawn Guo <shawnguo@kernel.org> |
| - Sascha Hauer <s.hauer@pengutronix.de> |
| - Fabio Estevam <festevam@gmail.com> |
| |
| properties: |
| compatible: |
| oneOf: |
| - const: fsl,imx21-wdt |
| - items: |
| - enum: |
| - fsl,imx25-wdt |
| - fsl,imx27-wdt |
| - fsl,imx31-wdt |
| - fsl,imx35-wdt |
| - fsl,imx50-wdt |
| - fsl,imx51-wdt |
| - fsl,imx53-wdt |
| - fsl,imx6q-wdt |
| - fsl,imx6sl-wdt |
| - fsl,imx6sll-wdt |
| - fsl,imx6sx-wdt |
| - fsl,imx6ul-wdt |
| - fsl,imx7d-wdt |
| - fsl,imx8mm-wdt |
| - fsl,imx8mn-wdt |
| - fsl,imx8mp-wdt |
| - fsl,imx8mq-wdt |
| - fsl,ls1012a-wdt |
| - fsl,ls1043a-wdt |
| - fsl,vf610-wdt |
| - const: fsl,imx21-wdt |
| |
| reg: |
| maxItems: 1 |
| |
| interrupts: |
| maxItems: 1 |
| |
| clocks: |
| maxItems: 1 |
| |
| fsl,ext-reset-output: |
| $ref: /schemas/types.yaml#/definitions/flag |
| description: | |
| If present, the watchdog device is configured to assert its |
| external reset (WDOG_B) instead of issuing a software reset. |
| |
| fsl,suspend-in-wait: |
| $ref: /schemas/types.yaml#/definitions/flag |
| description: | |
| If present, the watchdog device is suspended in WAIT mode |
| (Suspend-to-Idle). Only supported on certain devices. |
| |
| required: |
| - compatible |
| - interrupts |
| - reg |
| |
| allOf: |
| - $ref: watchdog.yaml# |
| - if: |
| not: |
| properties: |
| compatible: |
| contains: |
| enum: |
| - fsl,imx25-wdt |
| - fsl,imx35-wdt |
| - fsl,imx50-wdt |
| - fsl,imx51-wdt |
| - fsl,imx53-wdt |
| - fsl,imx6q-wdt |
| - fsl,imx6sl-wdt |
| - fsl,imx6sll-wdt |
| - fsl,imx6sx-wdt |
| - fsl,imx6ul-wdt |
| - fsl,imx7d-wdt |
| - fsl,imx8mm-wdt |
| - fsl,imx8mn-wdt |
| - fsl,imx8mp-wdt |
| - fsl,imx8mq-wdt |
| - fsl,vf610-wdt |
| then: |
| properties: |
| fsl,suspend-in-wait: false |
| |
| unevaluatedProperties: false |
| |
| examples: |
| - | |
| #include <dt-bindings/interrupt-controller/arm-gic.h> |
| #include <dt-bindings/clock/imx6qdl-clock.h> |
| |
| watchdog@20bc000 { |
| compatible = "fsl,imx21-wdt"; |
| reg = <0x020bc000 0x4000>; |
| interrupts = <0 80 IRQ_TYPE_LEVEL_HIGH>; |
| clocks = <&clks IMX6QDL_CLK_IPG>; |
| }; |
| |
| ... |