linux-kernel - [V5,7/9] dt-bindings: PCI: tegra194: Add monitor clock support

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Message-ID: <20260208180936.2026329-8-mmaddireddy@nvidia.com>
Date: Sun, 8 Feb 2026 23:39:34 +0530
From: Manikanta Maddireddy <mmaddireddy@...dia.com>
To: <bhelgaas@...gle.com>, <lpieralisi@...nel.org>, <kwilczynski@...nel.org>,
	<mani@...nel.org>, <robh@...nel.org>, <krzk+dt@...nel.org>,
	<conor+dt@...nel.org>, <thierry.reding@...il.com>, <jonathanh@...dia.com>,
	<jingoohan1@...il.com>, <vidyas@...dia.com>, <cassel@...nel.org>,
	<18255117159@....com>
CC: <linux-pci@...r.kernel.org>, <devicetree@...r.kernel.org>,
	<linux-tegra@...r.kernel.org>, <linux-kernel@...r.kernel.org>, "Manikanta
 Maddireddy" <mmaddireddy@...dia.com>
Subject: [V5,7/9] dt-bindings: PCI: tegra194: Add monitor clock support

From: Vidya Sagar <vidyas@...dia.com>

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@...dia.com>
Signed-off-by: Manikanta Maddireddy <mmaddireddy@...dia.com>
Reviewed-by: Rob Herring (Arm) <robh@...nel.org>
---
V5:
* Fixed review comments

V4:
* None

V3:
* None

V2:
* None

 .../devicetree/bindings/pci/nvidia,tegra194-pcie-ep.yaml    | 6 +++++-
 .../devicetree/bindings/pci/nvidia,tegra194-pcie.yaml       | 6 +++++-
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie-ep.yaml b/Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie-ep.yaml
index 6d6052a2748f..7805757f2e2d 100644
--- a/Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie-ep.yaml
+++ b/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:
diff --git a/Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie.yaml b/Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie.yaml
index fe81d52c7277..41041ae7e0a4 100644
--- a/Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie.yaml
+++ b/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:
-- 
2.34.1