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Wed, 23 Apr 2025 17:55:29 +0000 (UTC) From: Sasha Finkelstein via B4 Relay Date: Wed, 23 Apr 2025 19:55:13 +0200 Subject: [PATCH v3 1/3] dt-bindings: spmi: Add Apple SPMI NVMEM Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250423-spmi-nvmem-v3-1-2985aa722ddc@gmail.com> References: <20250423-spmi-nvmem-v3-0-2985aa722ddc@gmail.com> In-Reply-To: <20250423-spmi-nvmem-v3-0-2985aa722ddc@gmail.com> To: Sven Peter , Janne Grunau , Alyssa Rosenzweig , Neal Gompa , Srinivas Kandagatla , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: asahi@lists.linux.dev, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Sasha Finkelstein X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1745430928; l=2603; i=fnkl.kernel@gmail.com; s=20241124; h=from:subject:message-id; bh=EOBP3/6Xq4lPlQdYDYaxZLEyni+8kaQhO4JuDxWVIpA=; b=mj4HNQR5aytv5l7hHefmxiR1avN1zBOqmCF3exgY6qJZC54rZ+d7n2l8vHNqLIAXmfKNZb3Zk FTdkXhhhwR6C9eY2SlMb3QfsIxwsum+0J3MaW2JRjXP9gzimxmp+PRS X-Developer-Key: i=fnkl.kernel@gmail.com; a=ed25519; pk=aSkp1PdZ+eF4jpMO6oLvz/YfT5XkBUneWwyhQrOgmsU= X-Endpoint-Received: by B4 Relay for fnkl.kernel@gmail.com/20241124 with auth_id=283 X-Original-From: Sasha Finkelstein Reply-To: fnkl.kernel@gmail.com From: Sasha Finkelstein Add bindings for exposing SPMI registers of Apple PMICs as NVMEM cells Reviewed-by: Alyssa Rosenzweig Signed-off-by: Sasha Finkelstein Reviewed-by: Rob Herring (Arm) --- .../bindings/nvmem/apple,spmi-nvmem.yaml | 54 ++++++++++++++++++= ++++ MAINTAINERS | 1 + 2 files changed, 55 insertions(+) diff --git a/Documentation/devicetree/bindings/nvmem/apple,spmi-nvmem.yaml = b/Documentation/devicetree/bindings/nvmem/apple,spmi-nvmem.yaml new file mode 100644 index 0000000000000000000000000000000000000000..80b5a6cdcec91c8eed8b66f745e= 91ee07ba9683d --- /dev/null +++ b/Documentation/devicetree/bindings/nvmem/apple,spmi-nvmem.yaml @@ -0,0 +1,54 @@ +# 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 + +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 + + pmic@f { + compatible =3D "apple,maverick-pmic", "apple,spmi-nvmem"; + reg =3D <0xf SPMI_USID>; + + nvmem-layout { + compatible =3D "fixed-layout"; + #address-cells =3D <1>; + #size-cells =3D <1>; + + boot_stage: boot-stage@6001 { + reg =3D <0x6001 0x1>; + }; + }; + }; + +... diff --git a/MAINTAINERS b/MAINTAINERS index 96b82704950184bd71623ff41fc4df31e4c7fe87..f462545c54c55d4bdc22651e07a= 4c8e155e83016 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2277,6 +2277,7 @@ F: Documentation/devicetree/bindings/mailbox/apple,ma= ilbox.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* --=20 2.49.0