[RFC PATCH 1/3] dt-bindings: PCI: rcar-pci-host: add optional regulators

[Wolfram Sang]

Support regulators found on the e.g. KingFisher board.

Signed-off-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>
---
 Documentation/devicetree/bindings/pci/rcar-pci-host.yaml | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Documentation/devicetree/bindings/pci/rcar-pci-host.yaml b/Documentation/devicetree/bindings/pci/rcar-pci-host.yaml
index 8fdfbc763d70..23e44f78e62e 100644
--- a/Documentation/devicetree/bindings/pci/rcar-pci-host.yaml
+++ b/Documentation/devicetree/bindings/pci/rcar-pci-host.yaml
@@ -68,6 +68,12 @@ properties:
   phy-names:
     const: pcie
 
+  vpcie1v5-supply:
+    description: The 1.5v regulator to use for PCIe.
+
+  vpcie3v3-supply:
+    description: The 3.3v regulator to use for PCIe.
+
 required:
   - compatible
   - reg
@@ -121,5 +127,7 @@ examples:
              clock-names = "pcie", "pcie_bus";
              power-domains = <&sysc R8A7791_PD_ALWAYS_ON>;
              resets = <&cpg 319>;
+             vpcie1v5-supply = <&pcie_1v5>;
+             vpcie3v3-supply = <&pcie_3v3>;
          };
     };
-- 
2.30.2