Re: [PATCH 1/5] dt-bindings: PCI: rcar-gen4-pci-host: Add R-Car X5H PCIe4 compatible
From: Krzysztof Kozlowski
Date: Wed Jul 08 2026 - 04:37:52 EST
On Sat, Jul 04, 2026 at 10:25:00PM +0200, Marek Vasut wrote:
> Document bindings for R-Car X5H (R8A78000) PCIe4 host module.
>
> The binding document is deliberately using "renesas,rcar-gen5-pcie4"
> DT compatible string to discern R-Car X5H PCIe4 controller supported
> by this binding, from R-Car X5H PCIe6 controller which will use a
> separate binding.
>
> The R-Car X5H PCIe4 controller does no longer include PHY register
> range, the PHY is now a separate IP and referenced via the 'phy' DT
> property. The 'reg' and 'reg-names' DT properties therefore differ
> between R-Car Gen4 PCIe and R-Car X5H PCIe4, and the difference is
> handled in the allOf section.
>
> Signed-off-by: Marek Vasut <marek.vasut+renesas@xxxxxxxxxxx>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxxxxx>
Best regards,
Krzysztof