linux-kernel - [PATCH 1/6] dt-bindings: pci: cadence: Add property "hpa" for PCIe controllers

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Message-ID:
 <CH2PPF4D26F8E1CE4E18E9CC5B8DAF724DCA2A42@CH2PPF4D26F8E1C.namprd07.prod.outlook.com>
Date: Mon, 24 Mar 2025 09:08:38 +0000
From: Manikandan Karunakaran Pillai <mpillai@...ence.com>
To: "lpieralisi@...nel.org" <lpieralisi@...nel.org>,
        "manivannan.sadhasivam@...aro.org" <manivannan.sadhasivam@...aro.org>,
        "bhelgaas@...gle.com" <bhelgaas@...gle.com>,
        "kw@...ux.com" <kw@...ux.com>, "robh@...nel.org" <robh@...nel.org>,
        "devicetree@...r.kernel.org"
	<devicetree@...r.kernel.org>
CC: "manivannan.sadhasivam@...aro.org" <manivannan.sadhasivam@...aro.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>
Subject: [PATCH 1/6] dt-bindings: pci: cadence: Add property "hpa" for PCIe
 controllers

Document the newly added property "hpa" for Cadence PCIe controllers in Documentation/devicetree/bindings/pci/ for Root Port and Endpoint configurations

Signed-off-by: Manikandan K Pillai <mpillai@...ence.com>
---
 .../devicetree/bindings/pci/cdns,cdns-pcie-ep.yaml         | 4 ++++
 .../devicetree/bindings/pci/cdns,cdns-pcie-host.yaml       | 7 +++++++
 2 files changed, 11 insertions(+)

diff --git a/Documentation/devicetree/bindings/pci/cdns,cdns-pcie-ep.yaml b/Documentation/devicetree/bindings/pci/cdns,cdns-pcie-ep.yaml
index 98651ab22103..4e839fa90b23 100644
--- a/Documentation/devicetree/bindings/pci/cdns,cdns-pcie-ep.yaml
+++ b/Documentation/devicetree/bindings/pci/cdns,cdns-pcie-ep.yaml
@@ -24,6 +24,10 @@ properties:
       - const: reg
       - const: mem
 
+  hpa:
+    description: If present PCI controller is high performance architecture
+    type: boolean
+
 required:
   - reg
   - reg-names
diff --git a/Documentation/devicetree/bindings/pci/cdns,cdns-pcie-host.yaml b/Documentation/devicetree/bindings/pci/cdns,cdns-pcie-host.yaml
index a8190d9b100f..c219fe15c879 100644
--- a/Documentation/devicetree/bindings/pci/cdns,cdns-pcie-host.yaml
+++ b/Documentation/devicetree/bindings/pci/cdns,cdns-pcie-host.yaml
@@ -9,8 +9,11 @@ title: Cadence PCIe host controller
 maintainers:
   - Tom Joseph <tjoseph@...ence.com>
 
+select: false
+
 allOf:
   - $ref: cdns-pcie-host.yaml#
+  - $ref: cdns-pcie.yaml#
 
 properties:
   compatible:
@@ -24,6 +27,10 @@ properties:
       - const: reg
       - const: cfg
 
+  hpa:
+    description: If present PCI controller is high performance architecture
+    type: boolean
+
 required:
   - reg
   - reg-names
--
2.27.0