* [PATCH] dt-bindings: PCI: rcar-gen4-pci-host: Document optional msi-parent
@ 2026-07-20 1:54 Marek Vasut
2026-07-20 2:01 ` sashiko-bot
0 siblings, 1 reply; 2+ messages in thread
From: Marek Vasut @ 2026-07-20 1:54 UTC (permalink / raw)
To: linux-pci
Cc: Marek Vasut, Krzysztof Wilczyński, Bjorn Helgaas,
Conor Dooley, Geert Uytterhoeven, Koichiro Den,
Krzysztof Kozlowski, Lorenzo Pieralisi, Manivannan Sadhasivam,
Rob Herring, Yoshihiro Shimoda, devicetree, linux-kernel,
linux-renesas-soc
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>
---
Cc: "Krzysztof Wilczyński" <kwilczynski@kernel.org>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Conor Dooley <conor+dt@kernel.org>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Koichiro Den <den@valinux.co.jp>
Cc: Krzysztof Kozlowski <krzk+dt@kernel.org>
Cc: Lorenzo Pieralisi <lpieralisi@kernel.org>
Cc: Manivannan Sadhasivam <mani@kernel.org>
Cc: Rob Herring <robh@kernel.org>
Cc: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Cc: linux-renesas-soc@vger.kernel.org
---
Documentation/devicetree/bindings/pci/rcar-gen4-pci-host.yaml | 3 +++
1 file changed, 3 insertions(+)
diff --git a/Documentation/devicetree/bindings/pci/rcar-gen4-pci-host.yaml b/Documentation/devicetree/bindings/pci/rcar-gen4-pci-host.yaml
index bb3f843c59d91..64f456c6a75a1 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
--
2.53.0
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] dt-bindings: PCI: rcar-gen4-pci-host: Document optional msi-parent
2026-07-20 1:54 [PATCH] dt-bindings: PCI: rcar-gen4-pci-host: Document optional msi-parent Marek Vasut
@ 2026-07-20 2:01 ` sashiko-bot
0 siblings, 0 replies; 2+ messages in thread
From: sashiko-bot @ 2026-07-20 2:01 UTC (permalink / raw)
To: Marek Vasut; +Cc: devicetree, linux-pci, wsa+renesas, robh, conor+dt
> 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>
Sashiko has reviewed this patch and found no issues. It looks great!
--
Sashiko AI review · https://sashiko.dev/#/patchset/20260720015505.314957-1-marek.vasut+renesas@mailbox.org?part=1
^ permalink raw reply [flat|nested] 2+ messages in thread
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