Thread (15 messages) 15 messages, 3 authors, 2020-06-02

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

From: Gustavo Pimentel <hidden>
Date: 2020-05-15 13:16:14
Also in: linux-devicetree, linux-pci, lkml

Hi Kunihiko,

On Fri, May 15, 2020 at 10:59:2, Kunihiko Hayashi 
[off-list ref] wrote:
This gets iATU register area from reg property. In Synopsis DWC version
s/Synopsis/Synopsys
in all patches
quoted hunk ↗ jump to hunk
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@socionext.com>
---
 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


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