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authorMarek Vasut <marek.vasut+renesas@mailbox.org>2026-07-20 03:54:41 +0200
committerManivannan Sadhasivam <manivannan.sadhasivam@oss.qualcomm.com>2026-07-29 17:23:36 +0200
commit8ba87bf6edbd601d0bf5ee515d0fff77b5585a2e (patch)
tree37a74d0614604faf5bc472b01f0412fe857fe68f
parent7e38b7b0e0e582024e97289a3b63c201f226124d (diff)
downloadlinux-next-8ba87bf6edbd601d0bf5ee515d0fff77b5585a2e.tar.gz
linux-next-8ba87bf6edbd601d0bf5ee515d0fff77b5585a2e.zip
dt-bindings: PCI: rcar-gen4-pci-host: Document optional msi-parent
The R-Car Gen4 PCIe controller can optionally use GIC ITS as an MSI controller. This configuration is described in DT by setting msi-parent DT property in the PCIe controller node. Document this configuration. Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@oss.qualcomm.com> Acked-by: Rob Herring (Arm) <robh@kernel.org> Link: https://patch.msgid.link/20260720015505.314957-1-marek.vasut+renesas@mailbox.org
-rw-r--r--Documentation/devicetree/bindings/pci/rcar-gen4-pci-host.yaml3
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/pci/rcar-gen4-pci-host.yaml b/Documentation/devicetree/bindings/pci/rcar-gen4-pci-host.yaml
index bb3f843c59d9..64f456c6a75a 100644
--- a/Documentation/devicetree/bindings/pci/rcar-gen4-pci-host.yaml
+++ b/Documentation/devicetree/bindings/pci/rcar-gen4-pci-host.yaml
@@ -66,6 +66,9 @@ properties:
max-link-speed:
maximum: 4
+ msi-parent:
+ maxItems: 1
+
num-lanes:
maximum: 4