linux-kernel - [PATCH v1 1/3] dt-bindings: cache: qcom,llcc: Add IPQ5424 compatible

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Message-ID: <20241104073840.3686674-2-quic_varada@quicinc.com>
Date: Mon, 4 Nov 2024 13:08:38 +0530
From: Varadarajan Narayanan <quic_varada@...cinc.com>
To: <andersson@...nel.org>, <konradybcio@...nel.org>, <conor@...nel.org>,
        <robh@...nel.org>, <krzk+dt@...nel.org>,
        <linux-arm-msm@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
CC: Varadarajan Narayanan <quic_varada@...cinc.com>
Subject: [PATCH v1 1/3] dt-bindings: cache: qcom,llcc: Add IPQ5424 compatible

Document the Last Level Cache Controller on IPQ5424. The
'broadcast' register space is present only in chipsets that have
multiple instances of LLCC IP. Since IPQ5424 has only one
instance, both the LLCC and LLCC_BROADCAST points to the same
register space.

Hence, allow only '1' reg & reg-names entry for IPQ5424.

Signed-off-by: Varadarajan Narayanan <quic_varada@...cinc.com>
---
 .../devicetree/bindings/cache/qcom,llcc.yaml  | 20 +++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/cache/qcom,llcc.yaml b/Documentation/devicetree/bindings/cache/qcom,llcc.yaml
index 68ea5f70b75f..0b03cb35aa47 100644
--- a/Documentation/devicetree/bindings/cache/qcom,llcc.yaml
+++ b/Documentation/devicetree/bindings/cache/qcom,llcc.yaml
@@ -21,6 +21,7 @@ properties:
   compatible:
     enum:
       - qcom,qdu1000-llcc
+      - qcom,ipq5424-llcc
       - qcom,sa8775p-llcc
       - qcom,sc7180-llcc
       - qcom,sc7280-llcc
@@ -38,11 +39,11 @@ properties:
       - qcom,x1e80100-llcc
 
   reg:
-    minItems: 2
+    minItems: 1
     maxItems: 9
 
   reg-names:
-    minItems: 2
+    minItems: 1
     maxItems: 9
 
   interrupts:
@@ -62,6 +63,21 @@ required:
   - reg-names
 
 allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,ipq5424-llcc
+    then:
+      properties:
+        reg:
+          items:
+            - description: LLCC0 base register region
+        reg-names:
+          items:
+            - const: llcc0_base
+
   - if:
       properties:
         compatible:
-- 
2.34.1