dt-bindings: PCI: tegra194: Add monitor clock support

Tegra supports PCIe core clock monitoring for any rate changes that may be
happening because of the link speed changes. This is useful in tracking
any changes in the core clock that are not initiated by the software.

Signed-off-by: Vidya Sagar <vidyas@nvidia.com>
Signed-off-by: Manikanta Maddireddy <mmaddireddy@nvidia.com>
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Reviewed-by: Vidya Sagar <vidyas@nvidia.com>
Link: https://patch.msgid.link/20260324191000.1095768-7-mmaddireddy@nvidia.com

Author: Vidya Sagar

Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie-ep.yaml

@@ -55,12 +55,16 @@ properties:
       - const: intr
 
   clocks:
+    minItems: 1
     items:
-      - description: module clock
+      - description: core clock
+      - description: monitor clock
 
   clock-names:
+    minItems: 1
     items:
       - const: core
+      - const: core_m
 
   resets:
     items:

Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie.yaml

@@ -58,12 +58,16 @@ properties:
       - const: msi
 
   clocks:
+    minItems: 1
     items:
-      - description: module clock
+      - description: core clock
+      - description: monitor clock
 
   clock-names:
+    minItems: 1
     items:
       - const: core
+      - const: core_m
 
   resets:
     items: