Commit d59913b0 authored by Phil Edworthy's avatar Phil Edworthy Committed by Wim Van Sebroeck
Browse files

dt-bindings: watchdog: renesas,wdt: Add r9a09g011 (RZ/V2M) support 



Add the documentation for the r9a09g011 SoC, but in doing so also
reorganise the doc to make it easier to read.
Additionally, make the binding require an interrupt to be specified.
Whilst the driver does not need an interrupt, all of the SoCs that use
this binding actually provide one.

Signed-off-by: default avatarPhil Edworthy <phil.edworthy@renesas.com>
Reviewed-by: default avatarBiju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Reviewed-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: default avatarGuenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220823093233.8577-2-phil.edworthy@renesas.com


Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
Signed-off-by: default avatarWim Van Sebroeck <wim@linux-watchdog.org>
parent 695bfff5

Documentation/devicetree/bindings/watchdog/renesas,wdt.yaml

+52 −21
Original line number Diff line number Diff line
@@ -31,6 +31,11 @@ properties: 
              - renesas,r9a07g054-wdt    # RZ/V2L

          - const: renesas,rzg2l-wdt



      - items:

          - enum:

              - renesas,r9a09g011-wdt    # RZ/V2M

          - const: renesas,rzv2m-wdt     # RZ/V2M



      - items:

          - enum:

              - renesas,r8a7742-wdt      # RZ/G1H
@@ -71,13 +76,29 @@ properties: 
  reg:

    maxItems: 1



  interrupts: true

  interrupts:

    minItems: 1

    items:

      - description: Timeout

      - description: Parity error



  interrupt-names: true

  interrupt-names:

    minItems: 1

    items:

      - const: wdt

      - const: perrout



  clocks: true

  clocks:

    minItems: 1

    items:

      - description: Register access clock

      - description: Main clock



  clock-names: true

  clock-names:

    minItems: 1

    items:

      - const: pclk

      - const: oscclk



  power-domains:

    maxItems: 1
@@ -90,6 +111,7 @@ properties: 
required:

  - compatible

  - reg

  - interrupts

  - clocks



allOf:
@@ -114,31 +136,38 @@ allOf: 
          contains:

            enum:

              - renesas,rzg2l-wdt

              - renesas,rzv2m-wdt

    then:

      properties:

        interrupts:

          maxItems: 2

        interrupt-names:

          items:

            - const: wdt

            - const: perrout

        clocks:

          items:

            - description: Register access clock

            - description: Main clock

          minItems: 2

        clock-names:

          items:

            - const: pclk

            - const: oscclk

          minItems: 2

      required:

        - clock-names

    else:

      properties:

        clocks:

          maxItems: 1



  - if:

      properties:

        compatible:

          contains:

            enum:

              - renesas,rzg2l-wdt

    then:

      properties:

        interrupts:

          minItems: 2

        interrupt-names:

          minItems: 2

      required:

        - interrupt-names

    else:

      properties:

        interrupts:

          maxItems: 1

        clocks:

          maxItems: 1



additionalProperties: false
@@ -146,9 +175,11 @@ examples: 
  - |

    #include <dt-bindings/clock/r8a7795-cpg-mssr.h>

    #include <dt-bindings/power/r8a7795-sysc.h>

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

    wdt0: watchdog@e6020000 {

            compatible = "renesas,r8a7795-wdt", "renesas,rcar-gen3-wdt";

            reg = <0xe6020000 0x0c>;

            interrupts = <GIC_SPI 140 IRQ_TYPE_LEVEL_HIGH>;

            clocks = <&cpg CPG_MOD 402>;

            power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;

            resets = <&cpg 402>;