linux-kernel - [PATCH 1/3] dt-bindings: interconnect: add clocks property to enable QoS on qcs8300

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20251128150106.13849-2-odelu.kukatla@oss.qualcomm.com>
Date: Fri, 28 Nov 2025 20:31:04 +0530
From: Odelu Kukatla <odelu.kukatla@....qualcomm.com>
To: Georgi Djakov <djakov@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>
Cc: Raviteja Laggyshetty <raviteja.laggyshetty@....qualcomm.com>,
        Odelu Kukatla <odelu.kukatla@....qualcomm.com>,
        Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>,
        Bartosz Golaszewski <bartosz.golaszewski@...aro.org>,
        linux-arm-msm@...r.kernel.org, linux-pm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Mike Tipton <mike.tipton@....qualcomm.com>
Subject: [PATCH 1/3] dt-bindings: interconnect: add clocks property to enable QoS on qcs8300

Add 'clocks' property to enable QoS configuration. This property
enables the necessary clocks for QoS configuration.

QoS configuration is essential for ensuring that latency sensitive
components such as CPUs and multimedia engines receive prioritized
access to memory and interconnect resources. This helps to manage
bandwidth and latency across subsystems, improving system responsiveness
and performance in concurrent workloads.

Both 'reg' and 'clocks' properties are optional. If either is missing,
QoS configuration will be skipped. This behavior is controlled by the
'qos_requires_clocks' flag in the driver, which ensures that QoS
configuration is bypassed when required clocks are not defined.

Signed-off-by: Odelu Kukatla <odelu.kukatla@....qualcomm.com>
---
 .../interconnect/qcom,qcs8300-rpmh.yaml       | 53 ++++++++++++++++---
 1 file changed, 47 insertions(+), 6 deletions(-)

diff --git a/Documentation/devicetree/bindings/interconnect/qcom,qcs8300-rpmh.yaml b/Documentation/devicetree/bindings/interconnect/qcom,qcs8300-rpmh.yaml
index e9f528d6d9a8..594e835d1845 100644
--- a/Documentation/devicetree/bindings/interconnect/qcom,qcs8300-rpmh.yaml
+++ b/Documentation/devicetree/bindings/interconnect/qcom,qcs8300-rpmh.yaml
@@ -35,6 +35,10 @@ properties:
   reg:
     maxItems: 1
 
+  clocks:
+    minItems: 1
+    maxItems: 4
+
 required:
   - compatible
 
@@ -45,14 +49,39 @@ allOf:
         compatible:
           contains:
             enum:
-              - qcom,qcs8300-clk-virt
-              - qcom,qcs8300-mc-virt
+              - qcom,qcs8300-aggre1-noc
     then:
       properties:
-        reg: false
-    else:
-      required:
-        - reg
+        clocks:
+          items:
+            - description: aggre UFS PHY AXI clock
+            - description: aggre QUP PRIM AXI clock
+            - description: aggre USB2 PRIM AXI clock
+            - description: aggre USB3 PRIM AXI clock
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,qcs8300-aggre2-noc
+    then:
+      properties:
+        clocks:
+          items:
+            - description: RPMH CC IPA clock
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,qcs8300-gem-noc
+    then:
+      properties:
+        clocks:
+          items:
+            - description: GCC DDRSS GPU AXI clock
 
 unevaluatedProperties: false
 
@@ -63,6 +92,7 @@ examples:
         reg = <0x9100000 0xf7080>;
         #interconnect-cells = <2>;
         qcom,bcm-voters = <&apps_bcm_voter>;
+        clocks = <&gcc_ddrss_gpu_axi_clk>;
     };
 
     clk_virt: interconnect-0 {
@@ -70,3 +100,14 @@ examples:
         #interconnect-cells = <2>;
         qcom,bcm-voters = <&apps_bcm_voter>;
     };
+
+    aggre1_noc: interconnect@...0000 {
+        compatible = "qcom,qcs8300-aggre1-noc";
+        reg = <0x016c0000 0x17080>;
+        #interconnect-cells = <2>;
+        qcom,bcm-voters = <&apps_bcm_voter>;
+        clocks = <&gcc_aggre_ufs_phy_axi_clk>,
+                 <&gcc_aggre_noc_qupv3_axi_clk>,
+                 <&gcc_aggre_usb2_prim_axi_clk>,
+                 <&gcc_aggre_usb3_prim_axi_clk>;
+    };
-- 
2.17.1