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Fri, 5 Apr 2024 12:31:46 +0000 From: "Peng Fan (OSS)" Date: Fri, 05 Apr 2024 20:39:24 +0800 Subject: [PATCH v2 2/6] dt-bindings: firmware: add i.MX SCMI Extension protocol Message-Id: <20240405-imx95-bbm-misc-v2-v2-2-9fc9186856c2@nxp.com> References: <20240405-imx95-bbm-misc-v2-v2-0-9fc9186856c2@nxp.com> In-Reply-To: <20240405-imx95-bbm-misc-v2-v2-0-9fc9186856c2@nxp.com> To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Sudeep Holla , Cristian Marussi Cc: Peng Fan , devicetree@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1712320792; l=2717; i=peng.fan@nxp.com; s=20230812; h=from:subject:message-id; bh=V2qEDgdGzTv/oSyf8SB67tGPyUyth0sA80L0w5qSmfA=; b=5QfGF7Twg0+Q1c/qsnnMpvQrEoNCxtcZcvFmHcbJTNudBBTyOC9jGDN4pLdmyvI7qil6RvinC W1eWz15oOzOB7ZoBQR4zIRQl6ZDc8JgIRIPGAuABUI1Oceo15ESS+IT X-Developer-Key: i=peng.fan@nxp.com; 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Signed-off-by: Peng Fan --- .../devicetree/bindings/firmware/imx,scmi.yaml | 80 ++++++++++++++++++++++ 1 file changed, 80 insertions(+) diff --git a/Documentation/devicetree/bindings/firmware/imx,scmi.yaml b/Documentation/devicetree/bindings/firmware/imx,scmi.yaml new file mode 100644 index 000000000000..7ee19a661d83 --- /dev/null +++ b/Documentation/devicetree/bindings/firmware/imx,scmi.yaml @@ -0,0 +1,80 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +# Copyright 2024 NXP +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/firmware/imx,scmi.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: i.MX System Control and Management Interface(SCMI) Vendor Protocols Extension + +maintainers: + - Peng Fan + +allOf: + - $ref: arm,scmi.yaml# + +properties: + protocol@81: + $ref: 'arm,scmi.yaml#/$defs/protocol-node' + unevaluatedProperties: false + description: + The BBM Protocol is for managing Battery Backed Secure Module (BBSM) RTC + and the ON/OFF Key + + properties: + reg: + const: 0x81 + + required: + - reg + + protocol@84: + $ref: 'arm,scmi.yaml#/$defs/protocol-node' + unevaluatedProperties: false + description: + The MISC Protocol is for managing SoC Misc settings, such as GPR settings + + properties: + reg: + const: 0x84 + + wakeup-sources: + description: + Each entry consists of 2 integers, represents the source and electric signal edge + items: + items: + - description: the wakeup source + - description: the wakeup electric signal edge + $ref: /schemas/types.yaml#/definitions/uint32-matrix + + required: + - reg + +additionalProperties: false + +examples: + - | + firmware { + scmi { + compatible = "arm,scmi"; + mboxes = <&mu2 5 0>, <&mu2 3 0>, <&mu2 3 1>; + shmem = <&scmi_buf0>, <&scmi_buf1>; + + #address-cells = <1>; + #size-cells = <0>; + + protocol@81 { + reg = <0x81>; + }; + + protocol@84 { + reg = <0x84>; + wakeup-sources = <0x8000 1 + 0x8001 1 + 0x8002 1 + 0x8003 1 + 0x8004 1>; + }; + }; + }; +...