dt-bindings: interconnect: qcom: document the interconnects for sa8775p

Add a DT binding document for the RPMh interconnects on Qualcomm sa8775p
platforms.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230118140825.242544-2-brgl@bgdev.pl
Signed-off-by: Georgi Djakov <djakov@kernel.org>

1 files changed, 50 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/interconnect/qcom,sa8775p-rpmh.yaml b/Documentation/devicetree/bindings/interconnect/qcom,sa8775p-rpmh.yaml
new file mode 100644
index 000000000000..672c7aaa8ed7
--- /dev/null
+++ b/Documentation/devicetree/bindings/interconnect/qcom,sa8775p-rpmh.yaml
@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interconnect/qcom,sa8775p-rpmh.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm RPMh Network-On-Chip Interconnect on SA8875P
+
+maintainers:
+  - Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
+
+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,sa8775p.h
+
+properties:
+  compatible:
+    enum:
+      - qcom,sa8775p-aggre1-noc
+      - qcom,sa8775p-aggre2-noc
+      - qcom,sa8775p-clk-virt
+      - qcom,sa8775p-config-noc
+      - qcom,sa8775p-dc-noc
+      - qcom,sa8775p-gem-noc
+      - qcom,sa8775p-gpdsp-anoc
+      - qcom,sa8775p-lpass-ag-noc
+      - qcom,sa8775p-mc-virt
+      - qcom,sa8775p-mmss-noc
+      - qcom,sa8775p-nspa-noc
+      - qcom,sa8775p-nspb-noc
+      - qcom,sa8775p-pcie-anoc
+      - qcom,sa8775p-system-noc
+
+required:
+  - compatible
+
+allOf:
+  - $ref: qcom,rpmh-common.yaml#
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    aggre1_noc: interconnect-aggre1-noc {
+        compatible = "qcom,sa8775p-aggre1-noc";
+        #interconnect-cells = <2>;
+        qcom,bcm-voters = <&apps_bcm_voter>;
+    };