[PATCH v3 1/2] dt-bindings: PCI: mediatek-gen3: Add support for Airoha AN7583

[Christian Marangi <ansuelsmth@gmail.com>]

Introduce Airoha AN7583 SoC compatible in mediatek-gen3 PCIe controller
binding.

This differ from the Airoha EN7581 SoC by the fact that only one Gen3
PCIe controller is present on the SoC.

The compatible have -gen3 tag as the Airoha AN7583 SoC have both GEN2
and GEN3 PCIe controller and it's required to differentiate them as
different schema are required for the 2 PCIe Controller variant.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
Changes v3:
- Add review tag
- Add comments for compatible inconsistency
Changes v2:
- Fix alphabetical order

 .../bindings/pci/mediatek-pcie-gen3.yaml      | 21 +++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml b/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml
index 0278845701ce..1ca9594a9739 100644
--- a/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml
+++ b/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml
@@ -58,6 +58,7 @@ properties:
           - const: mediatek,mt8196-pcie
       - const: mediatek,mt8192-pcie
       - const: mediatek,mt8196-pcie
+      - const: airoha,an7583-pcie-gen3
       - const: airoha,en7581-pcie
 
   reg:
@@ -276,6 +277,26 @@ allOf:
 
         mediatek,pbus-csr: false
 
+  - if:
+      properties:
+        compatible:
+          const: airoha,an7583-pcie-gen3
+    then:
+      properties:
+        clocks:
+          maxItems: 1
+
+        clock-names:
+          items:
+            - const: sys-ck
+
+        resets:
+          minItems: 1
+
+        reset-names:
+          items:
+            - const: phy-lane0
+
   - if:
       properties:
         compatible:
-- 
2.51.0