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@collabora.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@collabora.com>
+
+properties:
+  protocol@80:
+    $ref: '/schemas/firmware/arm,scmi.yaml#/$defs/protocol-node'
+    unevaluatedProperties: false
+
+    properties:
+      reg:
+        const: 0x80
+
+additionalProperties: true
-- 
2.49.0

On Mon, Jun 23, 2025 at 02:01:35PM +0200, AngeloGioacchino Del Regno wrote:
> 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@collabora.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@collabora.com>
> +

This schema will never be applied.

> +properties:
> +  protocol@80:
> +    $ref: '/schemas/firmware/arm,scmi.yaml#/$defs/protocol-node'
> +    unevaluatedProperties: false
> +
> +    properties:
> +      reg:
> +        const: 0x80
> +
> +additionalProperties: true
> -- 
> 2.49.0
>

On Mon, Jun 23, 2025 at 02:01:35PM +0200, AngeloGioacchino Del Regno wrote:
> 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@collabora.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@collabora.com>
> +
> +properties:

Can we add some general description too.

Thanks,
Cristian