[PATCH RFC v7 2/9] dt-bindings: firmware: arm,scmi: Add Qualcomm Generic Extension Protocol

From: Pragnesh Papaniya

Date: Wed Jun 10 2026 - 04:54:42 EST


Add the binding schema for the Qualcomm SCMI Generic Extension Protocol
which helps support Bus DVFS on Glymur/Mahua/Hamoa/Purwa SoCs.

Signed-off-by: Pragnesh Papaniya <pragnesh.papaniya@xxxxxxxxxxxxxxxx>
---
.../devicetree/bindings/firmware/arm,scmi.yaml | 1 +
.../bindings/firmware/qcom,generic-scmi.yaml | 27 ++++++++++++++++++++++
2 files changed, 28 insertions(+)

diff --git a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml
index d06cca9273c4..aedc57dd3b38 100644
--- a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml
+++ b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml
@@ -24,6 +24,7 @@ description: |

anyOf:
- $ref: /schemas/firmware/nxp,imx95-scmi.yaml
+ - $ref: /schemas/firmware/qcom,generic-scmi.yaml

properties:
$nodename:
diff --git a/Documentation/devicetree/bindings/firmware/qcom,generic-scmi.yaml b/Documentation/devicetree/bindings/firmware/qcom,generic-scmi.yaml
new file mode 100644
index 000000000000..077653dc1cda
--- /dev/null
+++ b/Documentation/devicetree/bindings/firmware/qcom,generic-scmi.yaml
@@ -0,0 +1,27 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/firmware/qcom,generic-scmi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm System Control and Management Interface(SCMI) Vendor Protocols Extension
+
+maintainers:
+ - Sibi Sankar <sibi.sankar@xxxxxxxxxxxxxxxx>
+ - Pragnesh Papaniya <pragnesh.papaniya@xxxxxxxxxxxxxxxx>
+
+properties:
+ protocol@80:
+ description:
+ SCMI Qualcomm Generic Vendor Protocol which exposes a number of
+ Qualcomm SoC specific features (such as memory bus scaling) through
+ a mixture of pre-determined algorithm strings and param_id pairs
+ hosted on the SCMI controller.
+ $ref: '/schemas/firmware/arm,scmi.yaml#/$defs/protocol-node'
+ unevaluatedProperties: false
+
+ properties:
+ reg:
+ const: 0x80
+
+additionalProperties: true

--
2.34.1