[PATCH] dt-bindings: arm: apple: Add M3 (t8112 and t603x) devices

[Janne Grunau]

The Apple M3 based devices follow the pattern of their M1 and M2
predecessors. One notable difference is that the M3 Max SoC has two
variants: t6031 and t6034.
t6034 has 14 CPU cores, 30 GPU cores and a combined 384-bit LPPDR5
memory bus while t6031 comes with 16 CPU cores, 40 GPU cores and a
512-bit wide LPPDR5 interface. These are the only apparent
differences between those two SoCs.

Signed-off-by: Janne Grunau <j@xxxxxxxxxx>
---
 Documentation/devicetree/bindings/arm/apple.yaml | 55 ++++++++++++++++++++++++
 1 file changed, 55 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/apple.yaml b/Documentation/devicetree/bindings/arm/apple.yaml
index 5c2629ec3d4cbcee49d3ff6a4db1cc8298e2a2e1..acfe9824921280458d0911ae9cbf609101f37380 100644
--- a/Documentation/devicetree/bindings/arm/apple.yaml
+++ b/Documentation/devicetree/bindings/arm/apple.yaml
@@ -96,6 +96,13 @@ description: |
   - MacBook Pro (13-inch, M2, 2022)
   - Mac mini (M2, 2023)
 
+  Devices based on the "M3" SoC:
+
+  - MacBook Air (13-inch, M3, 2024)
+  - MacBook Air (15-inch, M3, 2024)
+  - MacBook Pro (14-inch, M3, 2023)
+  - iMac (24-inch, M3, 2023)
+
   Devices based on the "M1 Pro", "M1 Max" and "M1 Ultra" SoCs:
 
   - MacBook Pro (14-inch, M1 Pro, 2021)
@@ -116,6 +123,14 @@ description: |
   - Mac Studio (M2 Ultra, 2023)
   - Mac Pro (M2 Ultra, 2023)
 
+  Devices based on the "M3 Pro", "M3 Max" and "M3 Ultra" SoCs:
+
+  - MacBook Pro (14-inch, M3 Pro, 2023)
+  - MacBook Pro (14-inch, M3 Max, 2023)
+  - MacBook Pro (16-inch, M3 Pro, 2023)
+  - MacBook Pro (16-inch, M3 Max, 2023)
+  - Mac Studio (M3 Ultra, 2025)
+
   The compatible property should follow this format:
 
   compatible = "apple,<targettype>", "apple,<socid>", "apple,arm-platform";
@@ -297,6 +312,17 @@ properties:
           - const: apple,t8112
           - const: apple,arm-platform
 
+      - description: Apple M3 SoC based platforms
+        items:
+          - enum:
+              - apple,j433 # iMac (24-inch, 2x USB-C, M3, 2023)
+              - apple,j434 # iMac (24-inch, 4x USB-C, M3, 2023)
+              - apple,j504 # MacBook Pro (14-inch, M3, 2023)
+              - apple,j613 # MacBook Air (13-inch, M3, 2024)
+              - apple,j615 # MacBook Air (15-inch, M3, 2024)
+          - const: apple,t8122
+          - const: apple,arm-platform
+
       - description: Apple M1 Pro SoC based platforms
         items:
           - enum:
@@ -347,6 +373,35 @@ properties:
           - const: apple,t6022
           - const: apple,arm-platform
 
+      - description: Apple M3 Pro SoC based platforms
+        items:
+          - enum:
+              - apple,j514s # MacBook Pro (14-inch, M3 Pro, 2023)
+              - apple,j516s # MacBook Pro (16-inch, M3 Pro, 2023)
+          - const: apple,t6030
+          - const: apple,arm-platform
+
+      - description: Apple M3 Max SoC based platforms
+        oneOf:
+          - items:
+              - enum:
+                  - apple,j514c # MacBook Pro (14-inch, M3 Max, 16 cores, 2023)
+                  - apple,j516c # MacBook Pro (16-inch, M3 Max, 16 cores, 2023)
+              - const: apple,t6031
+              - const: apple,arm-platform
+          - items:
+              - enum:
+                  - apple,j514m # MacBook Pro (14-inch, M3 Max, 14 cores, 2023)
+                  - apple,j516m # MacBook Pro (16-inch, M3 Max, 14 cores, 2023)
+              - const: apple,t6034
+              - const: apple,arm-platform
+
+      - description: Apple M3 Ultra SoC based platforms
+        items:
+          - const: apple,j575d # Mac Studio (M3 Ultra, 2025)
+          - const: apple,t6032
+          - const: apple,arm-platform
+
 additionalProperties: true
 
 ...

---
base-commit: 6de23f81a5e08be8fbf5e8d7e9febc72a5b5f27f
change-id: 20260313-apple-m3-devices-dt-binding-88cf8a6fd429

Best regards,
-- 
Janne Grunau <j@xxxxxxxxxx>