linux-kernel - [PATCH v1 1/2] dt-bindings: firmware: Add MediaTek TinySYS SCMI Extension protocol

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Message-ID: <20250623120136.109311-2-angelogioacchino.delregno@collabora.com>
Date: Mon, 23 Jun 2025 14:01:35 +0200
From: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
To: robh@...nel.org
Cc: krzk+dt@...nel.org,
	conor+dt@...nel.org,
	matthias.bgg@...il.com,
	angelogioacchino.delregno@...labora.com,
	sudeep.holla@....com,
	cristian.marussi@....com,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org,
	arm-scmi@...r.kernel.org,
	kernel@...labora.com
Subject: [PATCH v1 1/2] dt-bindings: firmware: Add MediaTek TinySYS SCMI Extension protocol

Add the MediaTek TinySYS SCMI Extension protocol as found on a
number of SoCs, including MT6895 and MT8196.

This includes controls and power state notifications for the GPU,
CPU Memory latency Manager (cm_mgr), SLBC, SSPM and others.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
---
 .../firmware/mediatek,mt6895-scmi.yaml        | 22 +++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/firmware/mediatek,mt6895-scmi.yaml

diff --git a/Documentation/devicetree/bindings/firmware/mediatek,mt6895-scmi.yaml b/Documentation/devicetree/bindings/firmware/mediatek,mt6895-scmi.yaml
new file mode 100644
index 000000000000..98a5b81983b1
--- /dev/null
+++ b/Documentation/devicetree/bindings/firmware/mediatek,mt6895-scmi.yaml
@@ -0,0 +1,22 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright 2025 Collabora Ltd
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/firmware/mediatek,mt6895-scmi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek System Control and Management Interface(SCMI) Vendor Protocols Extension
+
+maintainers:
+  - AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
+
+properties:
+  protocol@80:
+    $ref: '/schemas/firmware/arm,scmi.yaml#/$defs/protocol-node'
+    unevaluatedProperties: false
+
+    properties:
+      reg:
+        const: 0x80
+
+additionalProperties: true
-- 
2.49.0