Re: [PATCH v3 3/4] PCI: rzg3s-host: Prepare System Controller handling for multiple controllers

From: Claudiu Beznea

Date: Tue Jun 02 2026 - 04:05:44 EST




On 5/20/26 19:48, Prabhakar wrote:
From: Lad Prabhakar<prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>

Prepare the driver to handle multiple PCIe controllers with distinct
System Controller (SYSC) register sets, as required by RZ/V2H(P). The
current design stores a single sysc_info structure per SoC, which is
insufficient for multi-controller configurations.

Introduce controller identifiers and extend struct rzg3s_pcie_soc_data
to hold a sysc_info array indexed per PCIe controller. Add a
controller_id field to struct rzg3s_pcie_host and select the appropriate
System Controller information during probe based on the hardware
instance.

Keep existing single-controller SoCs functionally unchanged while
preparing the driver for RZ/V2H(P) multi-controller support.

Signed-off-by: Lad Prabhakar<prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>

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

Tested on RZ/G3S:

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