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dt-bindings: spmi: Add Apple SPMI NVMEM

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Add bindings for exposing SPMI registers of Apple PMICs as NVMEM cells

Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Signed-off-by: Sasha Finkelstein <fnkl.kernel@gmail.com>
Reviewed-by: "Rob Herring (Arm)" <robh@kernel.org>
Reviewed-by: Neal Gompa <neal@gompa.dev>
Signed-off-by: Srinivas Kandagatla <srini@kernel.org>
Link: https://lore.kernel.org/r/20250509122452.11827-3-srini@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Sasha Finkelstein 2025-05-09 13:24:51 +01:00 committed by Greg Kroah-Hartman
parent 01465f296a
commit 4833245492
2 changed files with 55 additions and 0 deletions
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54
Documentation/devicetree/bindings/nvmem/apple,spmi-nvmem.yaml Normal file
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# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/nvmem/apple,spmi-nvmem.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Apple SPMI NVMEM
description: Exports a series of SPMI registers as NVMEM cells
maintainers:
- Sasha Finkelstein <fnkl.kernel@gmail.com>
allOf:
- $ref: nvmem.yaml#
properties:
compatible:
items:
- enum:
- apple,maverick-pmic
- apple,sera-pmic
- apple,stowe-pmic
- const: apple,spmi-nvmem
reg:
maxItems: 1
required:
- compatible
- reg
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/spmi/spmi.h>
pmic@f {
compatible = "apple,maverick-pmic", "apple,spmi-nvmem";
reg = <0xf SPMI_USID>;
nvmem-layout {
compatible = "fixed-layout";
#address-cells = <1>;
#size-cells = <1>;
boot_stage: boot-stage@6001 {
reg = <0x6001 0x1>;
};
};
};
...

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MAINTAINERS
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@ -2277,6 +2277,7 @@ F: Documentation/devicetree/bindings/mailbox/apple,mailbox.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
F: Documentation/devicetree/bindings/nvmem/apple,spmi-nvmem.yaml
F: Documentation/devicetree/bindings/pci/apple,pcie.yaml
F: Documentation/devicetree/bindings/pinctrl/apple,pinctrl.yaml
F: Documentation/devicetree/bindings/power/apple*