RE: [PATCH v2 4/5] PCI: uniphier: Add iATU register support

From: Gustavo Pimentel
Date: Fri May 15 2020 - 09:16:15 EST


Hi Kunihiko,

On Fri, May 15, 2020 at 10:59:2, Kunihiko Hayashi
<hayashi.kunihiko@xxxxxxxxxxxxx> wrote:

> This gets iATU register area from reg property. In Synopsis DWC version

s/Synopsis/Synopsys
in all patches

> 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@xxxxxxxxxxxxx>
> ---
> drivers/pci/controller/dwc/pcie-uniphier.c | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/drivers/pci/controller/dwc/pcie-uniphier.c b/drivers/pci/controller/dwc/pcie-uniphier.c
> index a8dda39..493f105 100644
> --- a/drivers/pci/controller/dwc/pcie-uniphier.c
> +++ b/drivers/pci/controller/dwc/pcie-uniphier.c
> @@ -447,6 +447,13 @@ static int uniphier_pcie_probe(struct platform_device *pdev)
> if (IS_ERR(priv->pci.dbi_base))
> return PTR_ERR(priv->pci.dbi_base);
>
> + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "atu");
> + if (res) {
> + priv->pci.atu_base = devm_pci_remap_cfg_resource(dev, res);
> + if (IS_ERR(priv->pci.atu_base))
> + priv->pci.atu_base = NULL;
> + }
> +
> res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "link");
> priv->base = devm_ioremap_resource(dev, res);
> if (IS_ERR(priv->base))
> --
> 2.7.4