linux-kernel - [PATCH v3 4/4] PCI: keystone: Remove iATU register mapping

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Message-Id: <1601444167-11316-5-git-send-email-hayashi.kunihiko@socionext.com>
Date:   Wed, 30 Sep 2020 14:36:07 +0900
From:   Kunihiko Hayashi <hayashi.kunihiko@...ionext.com>
To:     Rob Herring <robh+dt@...nel.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Jingoo Han <jingoohan1@...il.com>,
        Gustavo Pimentel <gustavo.pimentel@...opsys.com>,
        Murali Karicheri <m-karicheri2@...com>
Cc:     linux-pci@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Masami Hiramatsu <masami.hiramatsu@...aro.org>,
        Jassi Brar <jaswinder.singh@...aro.org>,
        Kunihiko Hayashi <hayashi.kunihiko@...ionext.com>
Subject: [PATCH v3 4/4] PCI: keystone: Remove iATU register mapping

After applying "PCI: dwc: Add common iATU register support",
there is no need to set own iATU in the Keystone driver itself.

Cc: Murali Karicheri <m-karicheri2@...com>
Cc: Jingoo Han <jingoohan1@...il.com>
Cc: Gustavo Pimentel <gustavo.pimentel@...opsys.com>
Suggested-by: Rob Herring <robh@...nel.org>
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@...ionext.com>
Reviewed-by: Rob Herring <robh@...nel.org>
---
 drivers/pci/controller/dwc/pci-keystone.c | 20 ++++----------------
 1 file changed, 4 insertions(+), 16 deletions(-)

diff --git a/drivers/pci/controller/dwc/pci-keystone.c b/drivers/pci/controller/dwc/pci-keystone.c
index b554812..a222728 100644
--- a/drivers/pci/controller/dwc/pci-keystone.c
+++ b/drivers/pci/controller/dwc/pci-keystone.c
@@ -1154,7 +1154,6 @@ static int __init ks_pcie_probe(struct platform_device *pdev)
 	struct keystone_pcie *ks_pcie;
 	struct device_link **link;
 	struct gpio_desc *gpiod;
-	void __iomem *atu_base;
 	struct resource *res;
 	unsigned int version;
 	void __iomem *base;
@@ -1275,23 +1274,12 @@ static int __init ks_pcie_probe(struct platform_device *pdev)
 		goto err_get_sync;
 	}
 
-	if (pci->version >= 0x480A) {
-		atu_base = devm_platform_ioremap_resource_byname(pdev, "atu");
-		if (IS_ERR(atu_base)) {
-			ret = PTR_ERR(atu_base);
-			goto err_get_sync;
-		}
-
-		pci->atu_base = atu_base;
-
+	if (pci->version >= 0x480A)
 		ret = ks_pcie_am654_set_mode(dev, mode);
-		if (ret < 0)
-			goto err_get_sync;
-	} else {
+	else
 		ret = ks_pcie_set_mode(dev);
-		if (ret < 0)
-			goto err_get_sync;
-	}
+	if (ret < 0)
+		goto err_get_sync;
 
 	switch (mode) {
 	case DW_PCIE_RC_TYPE:
-- 
2.7.4