dt-bindings: arm: apple: Add A9X devices

Adds the following apple,s8001 based platforms:

- iPad Pro (9.7 Inch)
- iPad Pro (12.9 Inch) (1st generation)

Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Nick Chan <towinchenmi@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Neal Gompa <neal@gompa.dev>
Signed-off-by: Hector Martin <marcan@marcan.st>

Author: asdfugil

Documentation/devicetree/bindings/arm/apple.yaml

@@ -38,6 +38,11 @@ description: |
   - iPhone SE (2016)
   - iPad 5
 
+  Devices based on the "A9X" SoC:
+
+  - iPad Pro (9.7-inch)
+  - iPad Pro (12.9-inch)
+
   Devices based on the "M1" SoC:
 
   - Mac mini (M1, 2020)
@@ -150,6 +155,16 @@ properties:
           - const: apple,s8003
           - const: apple,arm-platform
 
+      - description: Apple A9X SoC based platforms
+        items:
+          - enum:
+              - apple,j127 # iPad Pro (9.7-inch) (Wi-Fi)
+              - apple,j128 # iPad Pro (9.7-inch) (Cellular)
+              - apple,j98a # iPad Pro (12.9-inch) (Wi-Fi)
+              - apple,j99a # iPad Pro (12.9-inch) (Cellular)
+          - const: apple,s8001
+          - const: apple,arm-platform
+
       - description: Apple M1 SoC based platforms
         items:
           - enum: