linux-kernel - [PATCH v3 05/15] dt-bindings: interrupt-controller: apple,aic2: Add apple,t8112-aic compatible

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Message-Id: <20230202-asahi-t8112-dt-v3-5-d1a5f6383d95@jannau.net>
Date:   Tue, 07 Mar 2023 13:10:11 +0100
From:   Janne Grunau <j@...nau.net>
To:     Hector Martin <marcan@...can.st>, Sven Peter <sven@...npeter.dev>,
        Alyssa Rosenzweig <alyssa@...enzweig.io>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Mark Kettenis <kettenis@...nbsd.org>
Cc:     asahi@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Janne Grunau <j@...nau.net>, Marc Zyngier <maz@...nel.org>
Subject: [PATCH v3 05/15] dt-bindings: interrupt-controller: apple,aic2:
 Add apple,t8112-aic compatible

The Apple M2 SoC uses AICv2 and is compatible with the existing driver.
Add its per-SoC compatible.
Since multi-die versions of the M2 are not expected decrease
'#interrupt-cells' to 3 for apple,t8112-aic. This is seamlessly handled
inside the driver.

Acked-by: Marc Zyngier <maz@...nel.org>
Signed-off-by: Janne Grunau <j@...nau.net>
---
 .../bindings/interrupt-controller/apple,aic2.yaml  | 22 +++++++++++++++++++---
 1 file changed, 19 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/interrupt-controller/apple,aic2.yaml b/Documentation/devicetree/bindings/interrupt-controller/apple,aic2.yaml
index 06948c0e36a5..2bde6cc6fe0a 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/apple,aic2.yaml
+++ b/Documentation/devicetree/bindings/interrupt-controller/apple,aic2.yaml
@@ -31,19 +31,22 @@ description: |
 properties:
   compatible:
     items:
-      - const: apple,t6000-aic
+      - enum:
+          - apple,t8112-aic
+          - apple,t6000-aic
       - const: apple,aic2
 
   interrupt-controller: true
 
   '#interrupt-cells':
-    const: 4
+    minimum: 3
+    maximum: 4
     description: |
       The 1st cell contains the interrupt type:
         - 0: Hardware IRQ
         - 1: FIQ
 
-      The 2nd cell contains the die ID.
+      The 2nd cell contains the die ID (only present on apple,t6000-aic).
 
       The next cell contains the interrupt number.
         - HW IRQs: interrupt number
@@ -109,6 +112,19 @@ additionalProperties: false
 
 allOf:
   - $ref: /schemas/interrupt-controller.yaml#
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: apple,t8112-aic
+    then:
+      properties:
+        '#interrupt-cells':
+          const: 3
+    else:
+      properties:
+        '#interrupt-cells':
+          const: 4
 
 examples:
   - |

-- 
2.39.2