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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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dbad719958
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>
80 lines
1.7 KiB
YAML
80 lines
1.7 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/mfd/apple,smc.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Apple Mac System Management Controller
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maintainers:
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- Sven Peter <sven@kernel.org>
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description:
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Apple Mac System Management Controller implements various functions
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such as GPIO, RTC, power, reboot.
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properties:
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compatible:
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items:
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- enum:
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- apple,t6000-smc
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- apple,t8103-smc
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- apple,t8112-smc
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- const: apple,smc
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reg:
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items:
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- description: SMC area
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- description: SRAM area
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reg-names:
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items:
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- const: smc
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- const: sram
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mboxes:
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maxItems: 1
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gpio:
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$ref: /schemas/gpio/apple,smc-gpio.yaml
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reboot:
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$ref: /schemas/power/reset/apple,smc-reboot.yaml
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additionalProperties: false
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required:
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- compatible
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- reg
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- reg-names
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- mboxes
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examples:
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- |
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soc {
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#address-cells = <2>;
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#size-cells = <2>;
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smc@23e400000 {
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compatible = "apple,t8103-smc", "apple,smc";
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reg = <0x2 0x3e400000 0x0 0x4000>,
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<0x2 0x3fe00000 0x0 0x100000>;
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reg-names = "smc", "sram";
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mboxes = <&smc_mbox>;
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smc_gpio: gpio {
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compatible = "apple,smc-gpio";
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gpio-controller;
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#gpio-cells = <2>;
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};
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reboot {
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compatible = "apple,smc-reboot";
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nvmem-cells = <&shutdown_flag>, <&boot_stage>,
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<&boot_error_count>, <&panic_count>;
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nvmem-cell-names = "shutdown_flag", "boot_stage",
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"boot_error_count", "panic_count";
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};
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};
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};
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