dt-bindings: PCI: aardvark: Describe new properties

Document the possibility to reference a PHY and reset-gpios and to set
max-link-speed property.

Link: https://lore.kernel.org/r/20200430080625.26070-10-pali@kernel.org
Tested-by: Tomasz Maciej Nowak <tmn505@gmail.com>
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: devicetree@vger.kernel.org

diff --git a/Documentation/devicetree/bindings/pci/aardvark-pci.txt b/Documentation/devicetree/bindings/pci/aardvark-pci.txt
index 310ef71..2b8ca92 100644 (file)
--- a/Documentation/devicetree/bindings/pci/aardvark-pci.txt
+++ b/Documentation/devicetree/bindings/pci/aardvark-pci.txt
@@ -19,6 +19,9 @@ contain the following properties:
  - interrupt-map-mask and interrupt-map: standard PCI properties to
    define the mapping of the PCIe interface to interrupt numbers.
  - bus-range: PCI bus numbers covered
+ - phys: the PCIe PHY handle
+ - max-link-speed: see pci.txt
+ - reset-gpios: see pci.txt
 
 In addition, the Device Tree describing an Aardvark PCIe controller
 must include a sub-node that describes the legacy interrupt controller
@@ -48,6 +51,7 @@ Example:
                                <0 0 0 2 &pcie_intc 1>,
                                <0 0 0 3 &pcie_intc 2>,
                                <0 0 0 4 &pcie_intc 3>;
+               phys = <&comphy1 0>;
                pcie_intc: interrupt-controller {
                        interrupt-controller;
                        #interrupt-cells = <1>;