Re: [PATCH v4 3/9] dt-bindings: mfd: Add Apple Mac System Management Controller

[Alyssa Rosenzweig <alyssa@rosenzweig.io>]

Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>

Le Sat , May 03, 2025 at 10:06:50AM +0000, Sven Peter via B4 Relay a écrit :
> From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
> 
> Add a DT binding for the Apple Mac System Management Controller.
> 
> Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
> Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> Signed-off-by: Sven Peter <sven@svenpeter.dev>
> ---
>  .../devicetree/bindings/mfd/apple,smc.yaml         | 71 ++++++++++++++++++++++
>  MAINTAINERS                                        |  1 +
>  2 files changed, 72 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/mfd/apple,smc.yaml b/Documentation/devicetree/bindings/mfd/apple,smc.yaml
> new file mode 100644
> index 0000000000000000000000000000000000000000..9f1058c15bbf62d84f8a72fdaa354909b02e2801
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mfd/apple,smc.yaml
> @@ -0,0 +1,71 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/mfd/apple,smc.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Apple Mac System Management Controller
> +
> +maintainers:
> +  - Sven Peter <sven@svenpeter.dev>
> +
> +description:
> +  Apple Mac System Management Controller implements various functions
> +  such as GPIO, RTC, power, reboot.
> +
> +properties:
> +  compatible:
> +    items:
> +      - enum:
> +          - apple,t6000-smc
> +          - apple,t8103-smc
> +          - apple,t8112-smc
> +      - const: apple,smc
> +
> +  reg:
> +    items:
> +      - description: SMC area
> +      - description: SRAM area
> +
> +  reg-names:
> +    items:
> +      - const: smc
> +      - const: sram
> +
> +  mboxes:
> +    maxItems: 1
> +
> +  gpio:
> +    $ref: /schemas/gpio/apple,smc-gpio.yaml
> +
> +  reboot:
> +    $ref: /schemas/power/reset/apple,smc-reboot.yaml
> +
> +additionalProperties: false
> +
> +required:
> +  - compatible
> +  - reg
> +  - reg-names
> +  - mboxes
> +
> +examples:
> +  - |
> +    soc {
> +      #address-cells = <2>;
> +      #size-cells = <2>;
> +
> +      smc@23e400000 {
> +        compatible = "apple,t8103-smc", "apple,smc";
> +        reg = <0x2 0x3e400000 0x0 0x4000>,
> +               <0x2 0x3fe00000 0x0 0x100000>;
> +        reg-names = "smc", "sram";
> +        mboxes = <&smc_mbox>;
> +
> +        smc_gpio: gpio {
> +          compatible = "apple,smc-gpio";
> +          gpio-controller;
> +          #gpio-cells = <2>;
> +        };
> +      };
> +    };
> diff --git a/MAINTAINERS b/MAINTAINERS
> index d85d9d9065db4dc5869788f8a81d9d9a425d7ce3..2c16b2fc3fec76104967530f487123485af1e777 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -2275,6 +2275,7 @@ F:	Documentation/devicetree/bindings/iommu/apple,dart.yaml
>  F:	Documentation/devicetree/bindings/iommu/apple,sart.yaml
>  F:	Documentation/devicetree/bindings/leds/backlight/apple,dwi-bl.yaml
>  F:	Documentation/devicetree/bindings/mailbox/apple,mailbox.yaml
> +F:	Documentation/devicetree/bindings/mfd/apple,smc.yaml
>  F:	Documentation/devicetree/bindings/net/bluetooth/brcm,bcm4377-bluetooth.yaml
>  F:	Documentation/devicetree/bindings/nvme/apple,nvme-ans.yaml
>  F:	Documentation/devicetree/bindings/nvmem/apple,efuses.yaml
> 
> -- 
> 2.34.1
> 
>