ata: ahci_xgene: Convert to devm_platform_ioremap_resource()

Use devm_platform_ioremap_resource() to simplify code.
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>

drivers/ata/ahci_xgene.c

@@ -755,20 +755,17 @@ static int xgene_ahci_probe(struct platform_device *pdev)
 	ctx->dev = dev;
 
 	/* Retrieve the IP core resource */
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-	ctx->csr_core = devm_ioremap_resource(dev, res);
+	ctx->csr_core = devm_platform_ioremap_resource(pdev, 1);
 	if (IS_ERR(ctx->csr_core))
 		return PTR_ERR(ctx->csr_core);
 
 	/* Retrieve the IP diagnostic resource */
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 2);
-	ctx->csr_diag = devm_ioremap_resource(dev, res);
+	ctx->csr_diag = devm_platform_ioremap_resource(pdev, 2);
 	if (IS_ERR(ctx->csr_diag))
 		return PTR_ERR(ctx->csr_diag);
 
 	/* Retrieve the IP AXI resource */
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 3);
-	ctx->csr_axi = devm_ioremap_resource(dev, res);
+	ctx->csr_axi = devm_platform_ioremap_resource(pdev, 3);
 	if (IS_ERR(ctx->csr_axi))
 		return PTR_ERR(ctx->csr_axi);