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This patch introduces support for operating the Cadence USBSSP (cdnsp) controller in a peripheral-only mode, bypassing the Dual-Role Device (DRD) logic. The change in BAR indexing (from BAR 2 to BAR 1) is a direct consequence of switching from 64-bit to 32-bit addressing in the Peripheral-only configuration. Tested on PCI platform with Device-only configuration. Platform-side changes are included to support the PCI glue layer's property injection. Signed-off-by: Pawel Laszczak <pawell@cadence.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> # pci_ids.h Link: https://patch.msgid.link/20260331-device_only-v1-1-00378b80365c@cadence.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>