diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
index 8b79d88480db..d57daf6306e1 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
@@ -1116,69 +1116,62 @@ static int xgbe_phy_reset(struct xgbe_prv_data *pdata)
 	return pdata->phy_if.phy_reset(pdata);
 }
 
-int xgbe_powerdown(struct net_device *netdev, unsigned int caller)
+int xgbe_powerdown(struct net_device *netdev)
 {
 	struct xgbe_prv_data *pdata = netdev_priv(netdev);
 	struct xgbe_hw_if *hw_if = &pdata->hw_if;
 
-	DBGPR("-->xgbe_powerdown\n");
-
-	if (!netif_running(netdev) ||
-	    (caller == XGMAC_IOCTL_CONTEXT && pdata->power_down)) {
-		netdev_alert(netdev, "Device is already powered down\n");
-		DBGPR("<--xgbe_powerdown\n");
+	if (!netif_running(netdev)) {
+		netdev_dbg(netdev, "Device is not running, skipping powerdown\n");
 		return -EINVAL;
 	}
 
-	if (caller == XGMAC_DRIVER_CONTEXT)
-		netif_device_detach(netdev);
+	if (pdata->power_down) {
+		netdev_dbg(netdev, "Device is already powered down\n");
+		return -EINVAL;
+	}
 
+	netif_device_detach(netdev);
 	netif_tx_stop_all_queues(netdev);
 
 	xgbe_stop_timers(pdata);
 	flush_workqueue(pdata->dev_workqueue);
 
+	xgbe_napi_disable(pdata, 0);
+
 	hw_if->powerdown_tx(pdata);
 	hw_if->powerdown_rx(pdata);
 
-	xgbe_napi_disable(pdata, 0);
-
 	pdata->power_down = 1;
 
-	DBGPR("<--xgbe_powerdown\n");
-
 	return 0;
 }
 
-int xgbe_powerup(struct net_device *netdev, unsigned int caller)
+int xgbe_powerup(struct net_device *netdev)
 {
 	struct xgbe_prv_data *pdata = netdev_priv(netdev);
 	struct xgbe_hw_if *hw_if = &pdata->hw_if;
 
-	DBGPR("-->xgbe_powerup\n");
-
-	if (!netif_running(netdev) ||
-	    (caller == XGMAC_IOCTL_CONTEXT && !pdata->power_down)) {
-		netdev_alert(netdev, "Device is already powered up\n");
-		DBGPR("<--xgbe_powerup\n");
+	if (!netif_running(netdev)) {
+		netdev_dbg(netdev, "Device is not running, skipping powerup\n");
 		return -EINVAL;
 	}
 
-	pdata->power_down = 0;
-
-	xgbe_napi_enable(pdata, 0);
+	if (!pdata->power_down) {
+		netdev_dbg(netdev, "Device is already powered up\n");
+		return -EINVAL;
+	}
 
 	hw_if->powerup_tx(pdata);
 	hw_if->powerup_rx(pdata);
 
-	if (caller == XGMAC_DRIVER_CONTEXT)
-		netif_device_attach(netdev);
+	xgbe_napi_enable(pdata, 0);
 
 	netif_tx_start_all_queues(netdev);
-
 	xgbe_start_timers(pdata);
+	netif_device_attach(netdev);
 
-	DBGPR("<--xgbe_powerup\n");
+	pdata->power_down = 0;
 
 	return 0;
 }
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-pci.c b/drivers/net/ethernet/amd/xgbe/xgbe-pci.c
index f54a5040a493..dbdd791380a4 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-pci.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-pci.c
@@ -360,35 +360,102 @@ static void xgbe_pci_remove(struct pci_dev *pdev)
 	xgbe_free_pdata(pdata);
 }
 
-static int __maybe_unused xgbe_pci_suspend(struct device *dev)
+static void xgbe_pci_synchronize_irqs(struct xgbe_prv_data *pdata)
+{
+	unsigned int i;
+
+	/* Synchronize main device interrupt */
+	synchronize_irq(pdata->dev_irq);
+
+	/* Synchronize ECC interrupt if separate from main device interrupt */
+	if (pdata->vdata->ecc_support && pdata->dev_irq != pdata->ecc_irq)
+		synchronize_irq(pdata->ecc_irq);
+
+	/* Synchronize I2C interrupt if separate from main device interrupt */
+	if (pdata->vdata->i2c_support && pdata->dev_irq != pdata->i2c_irq)
+		synchronize_irq(pdata->i2c_irq);
+
+	/* Synchronize AN interrupt if separate from main device interrupt */
+	if (pdata->dev_irq != pdata->an_irq)
+		synchronize_irq(pdata->an_irq);
+
+	/* Synchronize per-channel DMA interrupts */
+	if (pdata->per_channel_irq) {
+		for (i = 0; i < pdata->channel_count; i++)
+			synchronize_irq(pdata->channel[i]->dma_irq);
+	}
+}
+
+static int xgbe_pci_suspend(struct device *dev)
 {
 	struct xgbe_prv_data *pdata = dev_get_drvdata(dev);
 	struct net_device *netdev = pdata->netdev;
+	struct pci_dev *pdev = to_pci_dev(dev);
 	int ret = 0;
 
 	if (netif_running(netdev))
-		ret = xgbe_powerdown(netdev, XGMAC_DRIVER_CONTEXT);
+		ret = xgbe_powerdown(netdev);
 
+	/* Disable all device interrupts to prevent spurious wakeups */
+	XP_IOWRITE(pdata, XP_INT_EN, 0x0);
+
+	/* Ensure no IRQ handlers are still executing before powering down.
+	 * This prevents race conditions where an IRQ handler could access
+	 * invalid register state after the device is disabled.
+	 */
+	xgbe_pci_synchronize_irqs(pdata);
+
+	/* Set PHY to low-power mode */
 	pdata->lpm_ctrl = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_CTRL1);
 	pdata->lpm_ctrl |= MDIO_CTRL1_LPOWER;
 	XMDIO_WRITE(pdata, MDIO_MMD_PCS, MDIO_CTRL1, pdata->lpm_ctrl);
 
+	/* Disable bus mastering to prevent DMA activity */
+	pci_clear_master(pdev);
+
+	/* Save PCI configuration state and disable device */
+	pci_save_state(pdev);
+	pci_disable_device(pdev);
+
+	/* Disable wake from D3 - required for S0i3 deep sleep */
+	pci_wake_from_d3(pdev, false);
+	pci_set_power_state(pdev, PCI_D3hot);
+
 	return ret;
 }
 
-static int __maybe_unused xgbe_pci_resume(struct device *dev)
+static int xgbe_pci_resume(struct device *dev)
 {
 	struct xgbe_prv_data *pdata = dev_get_drvdata(dev);
 	struct net_device *netdev = pdata->netdev;
+	struct pci_dev *pdev = to_pci_dev(dev);
 	int ret = 0;
 
+	/* Restore PCI power state */
+	pci_set_power_state(pdev, PCI_D0);
+
+	/* Restore PCI configuration state */
+	pci_restore_state(pdev);
+
+	/* Enable PCI device */
+	ret = pci_enable_device(pdev);
+	if (ret) {
+		dev_err(dev, "pci_enable_device failed: %d\n", ret);
+		return ret;
+	}
+
+	/* Re-enable bus mastering */
+	pci_set_master(pdev);
+
+	/* Re-enable all device interrupts */
 	XP_IOWRITE(pdata, XP_INT_EN, 0x1fffff);
 
+	/* Clear PHY low-power mode */
 	pdata->lpm_ctrl &= ~MDIO_CTRL1_LPOWER;
 	XMDIO_WRITE(pdata, MDIO_MMD_PCS, MDIO_CTRL1, pdata->lpm_ctrl);
 
 	if (netif_running(netdev)) {
-		ret = xgbe_powerup(netdev, XGMAC_DRIVER_CONTEXT);
+		ret = xgbe_powerup(netdev);
 
 		/* Schedule a restart in case the link or phy state changed
 		 * while we were powered down.
@@ -461,16 +528,16 @@ static const struct pci_device_id xgbe_pci_table[] = {
 };
 MODULE_DEVICE_TABLE(pci, xgbe_pci_table);
 
-static SIMPLE_DEV_PM_OPS(xgbe_pci_pm_ops, xgbe_pci_suspend, xgbe_pci_resume);
+static DEFINE_SIMPLE_DEV_PM_OPS(xgbe_pci_pm_ops,
+				xgbe_pci_suspend,
+				xgbe_pci_resume);
 
 static struct pci_driver xgbe_driver = {
 	.name = XGBE_DRV_NAME,
 	.id_table = xgbe_pci_table,
 	.probe = xgbe_pci_probe,
 	.remove = xgbe_pci_remove,
-	.driver = {
-		.pm = &xgbe_pci_pm_ops,
-	}
+	.driver.pm = pm_sleep_ptr(&xgbe_pci_pm_ops),
 };
 
 int xgbe_pci_init(void)
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-platform.c b/drivers/net/ethernet/amd/xgbe/xgbe-platform.c
index 47d53e59ccf6..98b03a3f3a95 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-platform.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-platform.c
@@ -384,7 +384,7 @@ static int xgbe_platform_suspend(struct device *dev)
 	DBGPR("-->xgbe_suspend\n");
 
 	if (netif_running(netdev))
-		ret = xgbe_powerdown(netdev, XGMAC_DRIVER_CONTEXT);
+		ret = xgbe_powerdown(netdev);
 
 	pdata->lpm_ctrl = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_CTRL1);
 	pdata->lpm_ctrl |= MDIO_CTRL1_LPOWER;
@@ -407,7 +407,7 @@ static int xgbe_platform_resume(struct device *dev)
 	XMDIO_WRITE(pdata, MDIO_MMD_PCS, MDIO_CTRL1, pdata->lpm_ctrl);
 
 	if (netif_running(netdev)) {
-		ret = xgbe_powerup(netdev, XGMAC_DRIVER_CONTEXT);
+		ret = xgbe_powerup(netdev);
 
 		/* Schedule a restart in case the link or phy state changed
 		 * while we were powered down.
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe.h b/drivers/net/ethernet/amd/xgbe/xgbe.h
index 4333d269ee84..3b9345506c2b 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe.h
+++ b/drivers/net/ethernet/amd/xgbe/xgbe.h
@@ -146,10 +146,6 @@
 #define XGBE_MAX_PPS_OUT	4
 #define XGBE_MAX_AUX_SNAP	4
 
-/* Driver PMT macros */
-#define XGMAC_DRIVER_CONTEXT	1
-#define XGMAC_IOCTL_CONTEXT	2
-
 #define XGMAC_FIFO_MIN_ALLOC	2048
 #define XGMAC_FIFO_UNIT		256
 #define XGMAC_FIFO_ALIGN(_x)				\
@@ -1309,8 +1305,8 @@ void xgbe_dump_rx_desc(struct xgbe_prv_data *, struct xgbe_ring *,
 		       unsigned int);
 void xgbe_print_pkt(struct net_device *, struct sk_buff *, bool);
 void xgbe_get_all_hw_features(struct xgbe_prv_data *);
-int xgbe_powerup(struct net_device *, unsigned int);
-int xgbe_powerdown(struct net_device *, unsigned int);
+int xgbe_powerup(struct net_device *netdev);
+int xgbe_powerdown(struct net_device *netdev);
 void xgbe_init_rx_coalesce(struct xgbe_prv_data *);
 void xgbe_init_tx_coalesce(struct xgbe_prv_data *);
 void xgbe_restart_dev(struct xgbe_prv_data *pdata);