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@quicinc.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

On Mon, 04 Nov 2024 13:08:38 +0530, Varadarajan Narayanan wrote:
> 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@quicinc.com>
> ---
>  .../devicetree/bindings/cache/qcom,llcc.yaml  | 20 +++++++++++++++++--
>  1 file changed, 18 insertions(+), 2 deletions(-)
> 

Reviewed-by: Rob Herring (Arm) <robh@kernel.org>