PCI: controller: Convert to devm_platform_ioremap_resource()

Use devm_platform_ioremap_resource() to simplify the code, since t
contains platform_get_resource() and devm_ioremap_resource() calls
respectively.

Link: https://lore.kernel.org/r/20200708155614.308-1-zhengdejin5@gmail.comSigned-off-by: Dejin Zheng <zhengdejin5@gmail.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>

drivers/pci/controller/dwc/pci-exynos.c

@@ -84,14 +84,12 @@ static int exynos5440_pcie_get_mem_resources(struct platform_device *pdev,
 {
 	struct dw_pcie *pci = ep->pci;
 	struct device *dev = pci->dev;
-	struct resource *res;
 
 	ep->mem_res = devm_kzalloc(dev, sizeof(*ep->mem_res), GFP_KERNEL);
 	if (!ep->mem_res)
 		return -ENOMEM;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	ep->mem_res->elbi_base = devm_ioremap_resource(dev, res);
+	ep->mem_res->elbi_base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(ep->mem_res->elbi_base))
 		return PTR_ERR(ep->mem_res->elbi_base);
 

drivers/pci/controller/pci-aardvark.c

@@ -1105,7 +1105,7 @@ static int advk_pcie_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct advk_pcie *pcie;
-	struct resource *res, *bus;
+	struct resource *bus;
 	struct pci_host_bridge *bridge;
 	int ret, irq;
 
@@ -1116,8 +1116,7 @@ static int advk_pcie_probe(struct platform_device *pdev)
 	pcie = pci_host_bridge_priv(bridge);
 	pcie->pdev = pdev;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	pcie->base = devm_ioremap_resource(dev, res);
+	pcie->base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(pcie->base))
 		return PTR_ERR(pcie->base);
 

drivers/pci/controller/pci-ftpci100.c

@@ -422,7 +422,6 @@ static int faraday_pci_probe(struct platform_device *pdev)
 	struct device *dev = &pdev->dev;
 	const struct faraday_pci_variant *variant =
 		of_device_get_match_data(dev);
-	struct resource *regs;
 	struct resource_entry *win;
 	struct faraday_pci *p;
 	struct resource *io;
@@ -465,8 +464,7 @@ static int faraday_pci_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	p->base = devm_ioremap_resource(dev, regs);
+	p->base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(p->base))
 		return PTR_ERR(p->base);
 

drivers/pci/controller/pci-versatile.c

@@ -76,13 +76,11 @@ static int versatile_pci_probe(struct platform_device *pdev)
 	if (!bridge)
 		return -ENOMEM;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	versatile_pci_base = devm_ioremap_resource(dev, res);
+	versatile_pci_base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(versatile_pci_base))
 		return PTR_ERR(versatile_pci_base);
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-	versatile_cfg_base[0] = devm_ioremap_resource(dev, res);
+	versatile_cfg_base[0] = devm_platform_ioremap_resource(pdev, 1);
 	if (IS_ERR(versatile_cfg_base[0]))
 		return PTR_ERR(versatile_cfg_base[0]);
 

drivers/pci/controller/pcie-brcmstb.c

@@ -933,7 +933,6 @@ static int brcm_pcie_probe(struct platform_device *pdev)
 	struct pci_host_bridge *bridge;
 	struct device_node *fw_np;
 	struct brcm_pcie *pcie;
-	struct resource *res;
 	int ret;
 
 	/*
@@ -958,8 +957,7 @@ static int brcm_pcie_probe(struct platform_device *pdev)
 	pcie->dev = &pdev->dev;
 	pcie->np = np;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	pcie->base = devm_ioremap_resource(&pdev->dev, res);
+	pcie->base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(pcie->base))
 		return PTR_ERR(pcie->base);