Re: [PATCH v3 1/4] dt-bindings: PCI: renesas,r9a08g045-pcie: Add RZ/V2H(P) support

[Claudiu Beznea]

On 5/20/26 19:48, Prabhakar wrote:
> From: Lad Prabhakar<prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
>
> Add support for the PCIe controller found on the Renesas RZ/V2H(P) SoC.
>
> The RZ/V2H(P) controller is similar to the RZ/G3E variant but includes
> additional registers and configuration bits for PCIe lane control. It
> supports multilink operation configured as either a single x4 link
> or two independent x2 link controllers.
>
> Unlike earlier SoCs supported by this driver which only feature a single
> PCIe controller, the RZ/V2H(P) SoC implements two controllers. Both
> instances rely on the system controller (SYSC) for configuration, but
> the required registers reside at different offsets for each controller.
>
> To correctly identify the controller instance and map the corresponding
> system controller registers, update the "renesas,sysc" property to a
> phandle-array. For the RZ/V2H(P) SoC, require an accompanying cell to
> specify the controller instance index (0 or 1). For all earlier SoCs,
> strictly restrict the property to a single phandle with zero argument
> cells.
>
> Additionally, make the "num-lanes" property mandatory for this SoC and
> restrict its values according to the hardware capabilities.
>
> Signed-off-by: Lad Prabhakar<prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>

Reviewed-by: Claudiu Beznea <claudiu.beznea.uj@xxxxxxxxxxxxxx>