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| author |   Russell King (Oracle) <rmk+kernel@armlinux.org.uk> | 2025-06-10 15:29:44 +0000 |
|---|---|---|
| committer |   Lee Jones <lee@kernel.org> | 2025-07-24 09:47:33 +0100 |
| commit | dbad719958e162ac021716c223ba9df9071bca55 (patch) | |
| tree | 66d57dec1bf040ebbb150338dc15a5cdd47a6e73 | |
| parent | dt-bindings: power: reboot: Add Apple Mac SMC Reboot Controller (diff) | |
| download | wireguard-linux-dbad719958e162ac021716c223ba9df9071bca55.tar.xz wireguard-linux-dbad719958e162ac021716c223ba9df9071bca55.zip | |
dt-bindings: mfd: Add Apple Mac System Management Controller
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>
Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Neal Gompa <neal@gompa.dev>
Signed-off-by: Sven Peter <sven@kernel.org>
Link: https://lore.kernel.org/r/20250610-smc-6-15-v7-3-556cafd771d3@kernel.org
Signed-off-by: Lee Jones <lee@kernel.org>
| -rw-r--r-- | Documentation/devicetree/bindings/mfd/apple,smc.yaml | 79 | ||||
| -rw-r--r-- | MAINTAINERS | 1 |
2 files changed, 80 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mfd/apple,smc.yaml b/Documentation/devicetree/bindings/mfd/apple,smc.yaml new file mode 100644 index 000000000000..8a10e270d421 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/apple,smc.yaml @@ -0,0 +1,79 @@ +# 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@kernel.org> + +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>; + }; + + reboot { + compatible = "apple,smc-reboot"; + nvmem-cells = <&shutdown_flag>, <&boot_stage>, + <&boot_error_count>, <&panic_count>; + nvmem-cell-names = "shutdown_flag", "boot_stage", + "boot_error_count", "panic_count"; + }; + }; + }; diff --git a/MAINTAINERS b/MAINTAINERS index 1dd004f7dff6..329b2df08d4b 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2339,6 +2339,7 @@ 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 |