[PATCH v3 1/2] dt-bindings: PCI: mediatek-gen3: Add mediatek,pbus-csr phandle array property

[Lorenzo Bianconi <lorenzo@xxxxxxxxxx>]

Introduce the mediatek,pbus-csr property for the pbus-csr syscon node
available on EN7581 SoC. The airoha pbus-csr block provides a configuration
interface for the PBUS controller used to detect if a given address is
accessible on PCIe controller.

Signed-off-by: Lorenzo Bianconi <lorenzo@xxxxxxxxxx>
---
 .../devicetree/bindings/pci/mediatek-pcie-gen3.yaml     | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml b/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml
index f05aab2b1addcac91d4685d7d94f421814822b92..162406e0691a81044406aa8f9e60605d0d917811 100644
--- a/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml
+++ b/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml
@@ -109,6 +109,17 @@ properties:
   power-domains:
     maxItems: 1
 
+  mediatek,pbus-csr:
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+    items:
+      - items:
+          - description: phandle to pbus-csr syscon
+          - description: offset of pbus-csr base address register
+          - description: offset of pbus-csr base address mask register
+    description:
+      Phandle with two arguments to the syscon node used to detect if
+      a given address is accessible on PCIe controller.
+
   '#interrupt-cells':
     const: 1
 
@@ -168,6 +179,8 @@ allOf:
           minItems: 1
           maxItems: 2
 
+        mediatek,pbus-csr: false
+
   - if:
       properties:
         compatible:
@@ -197,6 +210,8 @@ allOf:
           minItems: 1
           maxItems: 2
 
+        mediatek,pbus-csr: false
+
   - if:
       properties:
         compatible:
@@ -224,6 +239,8 @@ allOf:
           minItems: 1
           maxItems: 2
 
+        mediatek,pbus-csr: false
+
   - if:
       properties:
         compatible:

-- 
2.48.1