Commit 12878a9f authored by Andrej Picej's avatar Andrej Picej Committed by Wim Van Sebroeck
Browse files

dt-bindings: watchdog: fsl-imx: document suspend in wait mode 



Property "fsl,suspend-in-wait" suspends watchdog in "WAIT" mode which
corresponds to Linux's Suspend-to-Idle S0 mode. If this property is not
set and the device is put into Suspend-to-Idle mode, the watchdog
triggers a reset after 128 seconds.

Signed-off-by: default avatarAndrej Picej <andrej.picej@norik.com>
Reviewed-by: default avatarFabio Estevam <festevam@gmail.com>
Reviewed-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: default avatarGuenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20221104070358.426657-3-andrej.picej@norik.com


Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
Signed-off-by: default avatarWim Van Sebroeck <wim@linux-watchdog.org>
parent e42c73f1

Documentation/devicetree/bindings/watchdog/fsl-imx-wdt.yaml

+34 −3
Original line number Diff line number Diff line
@@ -9,9 +9,6 @@ title: Freescale i.MX Watchdog Timer (WDT) Controller 
maintainers:

  - Anson Huang <Anson.Huang@nxp.com>



allOf:

  - $ref: "watchdog.yaml#"



properties:

  compatible:

    oneOf:
@@ -55,11 +52,45 @@ properties: 
      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: