linux-kernel - [PATCH v4 1/7] dt-bindings: pci: xilinx-nwl: Add phys property

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Message-Id: <20240531161337.864994-2-sean.anderson@linux.dev>
Date: Fri, 31 May 2024 12:13:31 -0400
From: Sean Anderson <sean.anderson@...ux.dev>
To: Lorenzo Pieralisi <lpieralisi@...nel.org>,
	Krzysztof Wilczyński <kw@...ux.com>,
	Rob Herring <robh@...nel.org>,
	linux-pci@...r.kernel.org
Cc: Thippeswamy Havalige <thippeswamy.havalige@....com>,
	linux-arm-kernel@...ts.infradead.org,
	Markus Elfring <Markus.Elfring@....de>,
	Dan Carpenter <dan.carpenter@...aro.org>,
	linux-kernel@...r.kernel.org,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Michal Simek <michal.simek@....com>,
	Sean Anderson <sean.anderson@...ux.dev>,
	Conor Dooley <conor+dt@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	devicetree@...r.kernel.org
Subject: [PATCH v4 1/7] dt-bindings: pci: xilinx-nwl: Add phys property

Add phys properties so Linux can power-on/configure the GTR
transceivers (xlnx,zynqmp-psgtr-v1.1).

Signed-off-by: Sean Anderson <sean.anderson@...ux.dev>
Reviewed-by: Rob Herring (Arm) <robh@...nel.org>
---

Changes in v4:
- Clarify commit subject/message

Changes in v3:
- Document phys property

Changes in v2:
- Remove phy-names
- Add an example

 Documentation/devicetree/bindings/pci/xlnx,nwl-pcie.yaml | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/pci/xlnx,nwl-pcie.yaml b/Documentation/devicetree/bindings/pci/xlnx,nwl-pcie.yaml
index 426f90a47f35..cc50795d170b 100644
--- a/Documentation/devicetree/bindings/pci/xlnx,nwl-pcie.yaml
+++ b/Documentation/devicetree/bindings/pci/xlnx,nwl-pcie.yaml
@@ -61,6 +61,11 @@ properties:
   interrupt-map:
     maxItems: 4
 
+  phys:
+    minItems: 1
+    maxItems: 4
+    description: One phy per logical lane, in order
+
   power-domains:
     maxItems: 1
 
@@ -110,6 +115,7 @@ examples:
   - |
     #include <dt-bindings/interrupt-controller/arm-gic.h>
     #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/phy/phy.h>
     #include <dt-bindings/power/xlnx-zynqmp-power.h>
     soc {
         #address-cells = <2>;
@@ -138,6 +144,7 @@ examples:
                             <0x0 0x0 0x0 0x3 &pcie_intc 0x3>,
                             <0x0 0x0 0x0 0x4 &pcie_intc 0x4>;
             msi-parent = <&nwl_pcie>;
+            phys = <&psgtr 0 PHY_TYPE_PCIE 0 0>;
             power-domains = <&zynqmp_firmware PD_PCIE>;
             iommus = <&smmu 0x4d0>;
             pcie_intc: legacy-interrupt-controller {
-- 
2.35.1.1320.gc452695387.dirty