diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index d75b7c9ea32356bbf4dc0609fc6a42ad1113bd7b..ac875c50674008574f0cc46b8e40d569c0718902 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -1684,11 +1684,34 @@ static void ahci_port_init(struct device *dev, struct ata_port *ap,
 static void ahci_init_controller(struct ata_host *host)
 {
 	struct ahci_host_priv *hpriv = host->private_data;
-	struct pci_dev *pdev = to_pci_dev(host->dev);
 	void __iomem *mmio = hpriv->mmio;
 	int i;
 	void __iomem *port_mmio;
 	u32 tmp;
+
+	for (i = 0; i < host->n_ports; i++) {
+		struct ata_port *ap = host->ports[i];
+
+		port_mmio = ahci_port_base(ap);
+		if (ata_port_is_dummy(ap))
+			continue;
+
+		ahci_port_init(host->dev, ap, i, mmio, port_mmio);
+	}
+
+	tmp = readl(mmio + HOST_CTL);
+	VPRINTK("HOST_CTL 0x%x\n", tmp);
+	writel(tmp | HOST_IRQ_EN, mmio + HOST_CTL);
+	tmp = readl(mmio + HOST_CTL);
+	VPRINTK("HOST_CTL 0x%x\n", tmp);
+}
+
+static void ahci_pci_init_controller(struct ata_host *host)
+{
+	struct ahci_host_priv *hpriv = host->private_data;
+	struct pci_dev *pdev = to_pci_dev(host->dev);
+	void __iomem *port_mmio;
+	u32 tmp;
 	int mv;
 
 	if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
@@ -1707,21 +1730,7 @@ static void ahci_init_controller(struct ata_host *host)
 			writel(tmp, port_mmio + PORT_IRQ_STAT);
 	}
 
-	for (i = 0; i < host->n_ports; i++) {
-		struct ata_port *ap = host->ports[i];
-
-		port_mmio = ahci_port_base(ap);
-		if (ata_port_is_dummy(ap))
-			continue;
-
-		ahci_port_init(host->dev, ap, i, mmio, port_mmio);
-	}
-
-	tmp = readl(mmio + HOST_CTL);
-	VPRINTK("HOST_CTL 0x%x\n", tmp);
-	writel(tmp | HOST_IRQ_EN, mmio + HOST_CTL);
-	tmp = readl(mmio + HOST_CTL);
-	VPRINTK("HOST_CTL 0x%x\n", tmp);
+	ahci_init_controller(host);
 }
 
 static void ahci_dev_config(struct ata_device *dev)
@@ -2709,7 +2718,7 @@ static int ahci_pci_device_resume(struct pci_dev *pdev)
 		if (rc)
 			return rc;
 
-		ahci_init_controller(host);
+		ahci_pci_init_controller(host);
 	}
 
 	ata_host_resume(host);
@@ -3449,7 +3458,7 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (rc)
 		return rc;
 
-	ahci_init_controller(host);
+	ahci_pci_init_controller(host);
 	ahci_print_info(host);
 
 	pci_set_master(pdev);