Re: [PATCH v2 06/15] dt-bindings: interconnect: Add Qualcomm Kuno NoC

From: Hardeep Sharma

Date: Fri Aug 21 2026 - 12:30:30 EST



On 8/17/2026 12:58 PM, Krzysztof Kozlowski wrote:
On Fri, Aug 14, 2026 at 01:01:37PM +0530, Hardeep Sharma wrote:
Document the RPMh-based Network-on-Chip interconnect providers and
associated node-ID definitions for the Qualcomm Kuno SoC.

Signed-off-by: Hardeep Sharma <hardeep.sharma@xxxxxxxxxxxxxxxx>
---
.../bindings/interconnect/qcom,kuno-rpmh.yaml | 82 ++++++++++++++++++++
include/dt-bindings/interconnect/qcom,kuno.h | 89 ++++++++++++++++++++++
2 files changed, 171 insertions(+)

diff --git a/Documentation/devicetree/bindings/interconnect/qcom,kuno-rpmh.yaml b/Documentation/devicetree/bindings/interconnect/qcom,kuno-rpmh.yaml
new file mode 100644
index 000000000000..ffbf14356f12
--- /dev/null
+++ b/Documentation/devicetree/bindings/interconnect/qcom,kuno-rpmh.yaml
@@ -0,0 +1,82 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interconnect/qcom,kuno-rpmh.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm RPMh Network-On-Chip Interconnect on Kuno SoC
+
+maintainers:
+ - Hardeep Sharma <hardeep.sharma@xxxxxxxxxxxxxxxx>
+
+description: |
+ RPMh interconnect providers support system bandwidth requirements through
+ RPMh hardware accelerators known as Bus Clock Manager (BCM). The provider is
+ able to communicate with the BCM through the Resource State Coordinator (RSC)
+ associated with each execution environment. Provider nodes must point to at
+ least one RPMh device child node pertaining to their RSC and each provider
+ can map to multiple RPMh resources.
+
+ See also: include/dt-bindings/interconnect/qcom,kuno.h
+
+properties:
+ compatible:
+ enum:
+ - qcom,kuno-aggre-noc
+ - qcom,kuno-clk-virt
+ - qcom,kuno-cnoc-main
+ - qcom,kuno-dc-noc
+ - qcom,kuno-mc-virt
+ - qcom,kuno-mem-noc
+ - qcom,kuno-pcie-anoc
+ - qcom,kuno-system-noc
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ minItems: 1
+ maxItems: 4
+
+ clock-names:
+ minItems: 1
+ maxItems: 4
Why are these flexible?

Look at other bindings how this is done.

Best regards,
Krzysztof

Thanks for review.

You're right.

In v3 I've made the clocks fixed per compatible rather than a flexible range, following the sdx75/glymur interconnect bindings.

v3 : https://lore.kernel.org/all/20260821-kuno-soc-support-v3-0-196e2b306368@xxxxxxxxxxxxxxxx/

Best Wishes

Hardeep Sharma