Add fallback compatibility string for R-Car Gen 2 family.  This is in
keeping with the fallback scheme being adopted wherever appropriate for
drivers for Renesas SoCs.
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>
Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
Acked-by: NRob Herring <robh@kernel.org>

If the DTB specifies dma-ranges, use those values.  Otherwise, default to
the values that were previously hardcoded into the driver.
Signed-off-by: NPhil Edworthy <phil.edworthy@renesas.com>
Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
Acked-by: NRob Herring <robh@kernel.org>
Acked-by: NSimon Horman <horms+renesas@verge.net.au>

Add Renesas R8A7794 SoC support to the Renesas R-Car gen2 PCI driver.
Signed-off-by: NSergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: NBjorn Helgaas <helgaas@kernel.org>
Acked-by: NSimon Horman <horms+renesas@verge.net.au>

Add device tree probing support to the 'pci-rcar-gen2' driver.

[Sergei: numerous fixes/cleanups/additions]
[bhelgaas: whitespace fix]
Signed-off-by: NBen Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: NSergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
Acked-by: NSimon Horman <horms+renesas@verge.net.au>
Acked-by: NArnd Bergmann <arnd@arndb.de>