Commit 5c24a28b authored by Evan Benn's avatar Evan Benn Committed by Wim Van Sebroeck
Browse files

dt-bindings: watchdog: Add ARM smc wdt for mt8173 watchdog 



This watchdog can be used on ARM systems with a Secure
Monitor firmware to forward watchdog operations to
firmware via a Secure Monitor Call.

Signed-off-by: default avatarEvan Benn <evanbenn@chromium.org>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Reviewed-by: default avatarGuenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20200505131242.v6.1.Id96574f1f52479d7a2f3b866b8a0552ab8c03d7f@changeid


Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
Signed-off-by: default avatarWim Van Sebroeck <wim@linux-watchdog.org>
parent 62c35b44

Documentation/devicetree/bindings/watchdog/arm-smc-wdt.yaml

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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/watchdog/arm-smc-wdt.yaml#

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



title: ARM Secure Monitor Call based watchdog



allOf:

  - $ref: "watchdog.yaml#"



maintainers:

  - Julius Werner <jwerner@chromium.org>



properties:

  compatible:

    enum:

      - arm,smc-wdt

  arm,smc-id:

    allOf:

      - $ref: /schemas/types.yaml#/definitions/uint32

    description: |

      The ATF smc function id used by the firmware.

      Defaults to 0x82003D06 if unset.



required:

  - compatible



examples:

  - |

    watchdog {

      compatible = "arm,smc-wdt";

      arm,smc-id = <0x82003D06>;

      timeout-sec = <15>;

    };



...

MAINTAINERS

+6 −0
Original line number Diff line number Diff line
@@ -1456,6 +1456,12 @@ S: Maintained 
F:	Documentation/devicetree/bindings/interrupt-controller/arm,vic.txt

F:	drivers/irqchip/irq-vic.c









ARM SMC WATCHDOG DRIVER









M:	Julius Werner <jwerner@chromium.org>









R:	Evan Benn <evanbenn@chromium.org>









S:	Maintained









F:	devicetree/bindings/watchdog/arm-smc-wdt.yaml

















ARM SMMU DRIVERS









M:	Will Deacon <will@kernel.org>









R:	Robin Murphy <robin.murphy@arm.com>


































































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