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Message-Id: <20240731-imx95-bbm-misc-v2-v7-1-a41394365602@nxp.com>
Date: Wed, 31 Jul 2024 20:56:05 +0800
From: "Peng Fan (OSS)" <peng.fan@....nxp.com>
To: Sudeep Holla <sudeep.holla@....com>,
Cristian Marussi <cristian.marussi@....com>, Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
Sascha Hauer <s.hauer@...gutronix.de>,
Pengutronix Kernel Team <kernel@...gutronix.de>,
Fabio Estevam <festevam@...il.com>, Peng Fan <peng.fan@....com>,
Alexandre Belloni <alexandre.belloni@...tlin.com>,
Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc: arm-scmi@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
imx@...ts.linux.dev, linux-rtc@...r.kernel.org, linux-input@...r.kernel.org
Subject: [PATCH v7 1/7] dt-bindings: firmware: add i.MX95 SCMI Extension
protocol
From: Peng Fan <peng.fan@....com>
Add i.MX SCMI Extension protocols bindings for:
- Battery Backed Module(BBM) Protocol
This contains persistent storage (GPR), an RTC, and the ON/OFF button.
The protocol can also provide access to similar functions implemented via
external board components.
- MISC Protocol.
This includes controls that are misc settings/actions that must be
exposed from the SM to agents. They are device specific and are usually
define to access bit fields in various mix block control modules,
IOMUX_GPR, and other GPR/CSR owned by the SM.
Reviewed-by: Rob Herring (Arm) <robh@...nel.org>
Reviewed-by: Cristian Marussi <cristian.marussi@....com>
Signed-off-by: Peng Fan <peng.fan@....com>
---
.../devicetree/bindings/firmware/arm,scmi.yaml | 5 ++-
.../bindings/firmware/nxp,imx95-scmi.yaml | 43 ++++++++++++++++++++++
2 files changed, 47 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml
index 4d823f3b1f0e..47f0487e35de 100644
--- a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml
+++ b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml
@@ -22,6 +22,9 @@ description: |
[0] https://developer.arm.com/documentation/den0056/latest
+anyOf:
+ - $ref: /schemas/firmware/nxp,imx95-scmi.yaml
+
properties:
$nodename:
const: scmi
@@ -284,7 +287,7 @@ properties:
required:
- reg
-additionalProperties: false
+unevaluatedProperties: false
$defs:
protocol-node:
diff --git a/Documentation/devicetree/bindings/firmware/nxp,imx95-scmi.yaml b/Documentation/devicetree/bindings/firmware/nxp,imx95-scmi.yaml
new file mode 100644
index 000000000000..1a95010a546b
--- /dev/null
+++ b/Documentation/devicetree/bindings/firmware/nxp,imx95-scmi.yaml
@@ -0,0 +1,43 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright 2024 NXP
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/firmware/nxp,imx95-scmi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: i.MX95 System Control and Management Interface(SCMI) Vendor Protocols Extension
+
+maintainers:
+ - Peng Fan <peng.fan@....com>
+
+properties:
+ protocol@81:
+ $ref: '/schemas/firmware/arm,scmi.yaml#/$defs/protocol-node'
+ unevaluatedProperties: false
+
+ properties:
+ reg:
+ const: 0x81
+
+ protocol@84:
+ $ref: '/schemas/firmware/arm,scmi.yaml#/$defs/protocol-node'
+ unevaluatedProperties: false
+
+ properties:
+ reg:
+ const: 0x84
+
+ nxp,ctrl-ids:
+ description:
+ Each entry consists of 2 integers, represents the ctrl id and the value
+ items:
+ items:
+ - description: the ctrl id index
+ enum: [0, 1, 2, 3, 4, 5, 6, 7, 0x8000, 0x8001, 0x8002, 0x8003,
+ 0x8004, 0x8005, 0x8006, 0x8007]
+ - description: the value assigned to the ctrl id
+ minItems: 1
+ maxItems: 16
+ $ref: /schemas/types.yaml#/definitions/uint32-matrix
+
+additionalProperties: true
--
2.37.1
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