[PATCH v6 5/6] PCI: uniphier: Add iATU register support

[Rob Herring]

On Fri, Aug 7, 2020 at 4:25 AM Kunihiko Hayashi
<hayashi.kunihiko at socionext.com> wrote:
>
> This gets iATU register area from reg property. In Synopsys DWC version
> 4.80 or later, since iATU register area is separated from core register
> area, this area is necessary to get from DT independently.
>
> Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko at socionext.com>
> ---
>  drivers/pci/controller/dwc/pcie-uniphier.c | 5 +++++
>  1 file changed, 5 insertions(+)
>
> diff --git a/drivers/pci/controller/dwc/pcie-uniphier.c b/drivers/pci/controller/dwc/pcie-uniphier.c
> index 55a7166..93ef608 100644
> --- a/drivers/pci/controller/dwc/pcie-uniphier.c
> +++ b/drivers/pci/controller/dwc/pcie-uniphier.c
> @@ -471,6 +471,11 @@ static int uniphier_pcie_probe(struct platform_device *pdev)
>         if (IS_ERR(priv->pci.dbi_base))
>                 return PTR_ERR(priv->pci.dbi_base);
>
> +       priv->pci.atu_base =
> +               devm_platform_ioremap_resource_byname(pdev, "atu");
> +       if (IS_ERR(priv->pci.atu_base))
> +               priv->pci.atu_base = NULL;

Keystone has the same 'atu' resource setup. Please move its code to
the DW core and use that.

Rob