dt-bindings: interconnect: Add Qualcomm SM7150 DT bindings

The Qualcomm SM7150 platform has several bus fabrics that could be
controlled and tuned dynamically according to the bandwidth demand.

Signed-off-by: Danila Tikhonov <danila@jiaxyga.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240222174250.80493-2-danila@jiaxyga.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>

1 files changed, 84 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/interconnect/qcom,sm7150-rpmh.yaml b/Documentation/devicetree/bindings/interconnect/qcom,sm7150-rpmh.yaml
new file mode 100644
index 000000000000..b565d1a382f6
--- /dev/null
+++ b/Documentation/devicetree/bindings/interconnect/qcom,sm7150-rpmh.yaml
@@ -0,0 +1,84 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interconnect/qcom,sm7150-rpmh.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm RPMh Network-On-Chip Interconnect on SM7150
+
+maintainers:
+  - Danila Tikhonov <danila@jiaxyga.com>
+
+description: |
+  RPMh interconnect providers support system bandwidth requirements through
+  RPMh hardware accelerators known as Bus Clock Manager (BCM).
+
+  See also:: include/dt-bindings/interconnect/qcom,sm7150-rpmh.h
+
+allOf:
+  - $ref: qcom,rpmh-common.yaml#
+
+properties:
+  compatible:
+    enum:
+      - qcom,sm7150-aggre1-noc
+      - qcom,sm7150-aggre2-noc
+      - qcom,sm7150-compute-noc
+      - qcom,sm7150-config-noc
+      - qcom,sm7150-dc-noc
+      - qcom,sm7150-gem-noc
+      - qcom,sm7150-mc-virt
+      - qcom,sm7150-mmss-noc
+      - qcom,sm7150-system-noc
+
+  reg:
+    maxItems: 1
+
+# Child node's properties
+patternProperties:
+  '^interconnect-[0-9]+$':
+    type: object
+    description:
+      The interconnect providers do not have a separate QoS register space,
+      but share parent's space.
+
+    allOf:
+      - $ref: qcom,rpmh-common.yaml#
+
+    properties:
+      compatible:
+        enum:
+          - qcom,sm7150-camnoc-virt
+
+    required:
+      - compatible
+
+    unevaluatedProperties: false
+
+required:
+  - compatible
+  - reg
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    mc_virt: interconnect@1380000 {
+        compatible = "qcom,sm7150-mc-virt";
+        reg = <0x01380000 0x40000>;
+        #interconnect-cells = <2>;
+        qcom,bcm-voters = <&apps_bcm_voter>;
+    };
+
+    system_noc: interconnect@1620000 {
+        compatible = "qcom,sm7150-system-noc";
+        reg = <0x01620000 0x40000>;
+        #interconnect-cells = <2>;
+        qcom,bcm-voters = <&apps_bcm_voter>;
+
+        camnoc_virt: interconnect-0 {
+            compatible = "qcom,sm7150-camnoc-virt";
+            #interconnect-cells = <2>;
+            qcom,bcm-voters = <&apps_bcm_voter>;
+        };
+    };