[PATCH 1/4] dt-bindings: cache: qcom,llcc: allow optional second interrupt for LCP/SRP ECC

[Faiyaz Mohammed]

QCM2390 (Shikra) has an LCP/SRP block that signals DDR DRAM ECC errors
on a dedicated interrupt line separate from the existing TRP/DRP cache
ECC interrupt.

Allow an optional second interrupt in the LLCC binding, add
interrupt-names with "llcc-ecc" and "llcc-lcp-ecc", and enforce both
are present when compatible is qcom,shikra-llcc.

Signed-off-by: Faiyaz Mohammed <faiyaz.mohammed@xxxxxxxxxxxxxxxx>
---
 .../devicetree/bindings/cache/qcom,llcc.yaml       | 26 +++++++++++++++++++++-
 1 file changed, 25 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/cache/qcom,llcc.yaml b/Documentation/devicetree/bindings/cache/qcom,llcc.yaml
index 2141e5d4de63..3546cf7c2519 100644
--- a/Documentation/devicetree/bindings/cache/qcom,llcc.yaml
+++ b/Documentation/devicetree/bindings/cache/qcom,llcc.yaml
@@ -64,7 +64,17 @@ properties:
     maxItems: 18
 
   interrupts:
-    maxItems: 1
+    minItems: 1
+    items:
+      - description: TRP/DRP LLCC cache ECC (ddrss_apps_interrupt[2])
+      - description: LCP/SRP DDR DRAM ECC (ddrss_apps_interrupt[1]), present
+          on platforms with an LCP/SRP block such as QCM2390
+
+  interrupt-names:
+    minItems: 1
+    items:
+      - const: llcc-ecc
+      - const: llcc-lcp-ecc
 
   memory-region:
     maxItems: 1
@@ -234,6 +244,20 @@ allOf:
             - const: llcc1_base
             - const: llcc_broadcast_base
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: qcom,shikra-llcc
+    then:
+      properties:
+        interrupts:
+          minItems: 2
+        interrupt-names:
+          minItems: 2
+      required:
+        - interrupt-names
+
   - if:
       properties:
         compatible:

-- 
2.34.1