[PATCH v4 1/4] dt-bindings: PCI: ti, j721e: Add binding to represent refclk to the connector

[Kishon Vijay Abraham I]

Add binding to represent refclk to the PCIe connector.

Signed-off-by: Kishon Vijay Abraham I <kishon at ti.com>
---
 .../devicetree/bindings/pci/ti,j721e-pci-host.yaml       | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/pci/ti,j721e-pci-host.yaml b/Documentation/devicetree/bindings/pci/ti,j721e-pci-host.yaml
index 0880a613ece6..963f90816645 100644
--- a/Documentation/devicetree/bindings/pci/ti,j721e-pci-host.yaml
+++ b/Documentation/devicetree/bindings/pci/ti,j721e-pci-host.yaml
@@ -46,12 +46,17 @@ properties:
     maxItems: 1
 
   clocks:
-    maxItems: 1
-    description: clock-specifier to represent input to the PCIe
+    minItems: 1
+    maxItems: 2
+    description: |+
+      clock-specifier to represent input to the PCIe for 1 item.
+      2nd item if present represents reference clock to the connector.
 
   clock-names:
+    minItems: 1
     items:
       - const: fck
+      - const: pcie_refclk
 
   vendor-id:
     const: 0x104c
-- 
2.17.1