linux-kernel - [PATCH v2 1/3] dt-bindings: cache: qcom,llcc: Add IPQ5424 compatible

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Message-ID: <20241105102210.510025-2-quic_varada@quicinc.com>
Date: Tue, 5 Nov 2024 15:52:08 +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 v2 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.

Reviewed-by: Rob Herring (Arm) <robh@...nel.org>
Signed-off-by: Varadarajan Narayanan <quic_varada@...cinc.com>
---
v2: Add Reviewed-by
---
 .../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 ee7edc6f60e2..1a0021676e59 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: 10
 
   reg-names:
-    minItems: 2
+    minItems: 1
     maxItems: 10
 
   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