net: axienet: Use of_property_* calls

Use of_property_* calls
Signed-off-by: Srikanth Thokala <sthokal@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/xilinx/xilinx_axienet_main.c

@@ -1493,13 +1493,13 @@ static void axienet_dma_err_handler(unsigned long data)
  */
 static int axienet_of_probe(struct platform_device *pdev)
 {
-	__be32 *p;
-	int size, ret = 0;
+	int ret;
 	struct device_node *np;
 	struct axienet_local *lp;
 	struct net_device *ndev;
-	const void *addr;
+	u8 mac_addr[6];
 	struct resource *ethres, dmares;
+	u32 value;
 
 	ndev = alloc_etherdev(sizeof(*lp));
 	if (!ndev)
@@ -1529,9 +1529,9 @@ static int axienet_of_probe(struct platform_device *pdev)
 	/* Setup checksum offload, but default to off if not specified */
 	lp->features = 0;
 
-	p = (__be32 *)of_get_property(pdev->dev.of_node, "xlnx,txcsum", NULL);
-	if (p) {
-		switch (be32_to_cpup(p)) {
+	ret = of_property_read_u32(pdev->dev.of_node, "xlnx,txcsum", &value);
+	if (!ret) {
+		switch (value) {
 		case 1:
 			lp->csum_offload_on_tx_path =
 				XAE_FEATURE_PARTIAL_TX_CSUM;
@@ -1550,9 +1550,9 @@ static int axienet_of_probe(struct platform_device *pdev)
 			lp->csum_offload_on_tx_path = XAE_NO_CSUM_OFFLOAD;
 		}
 	}
-	p = (__be32 *)of_get_property(pdev->dev.of_node, "xlnx,rxcsum", NULL);
-	if (p) {
-		switch (be32_to_cpup(p)) {
+	ret = of_property_read_u32(pdev->dev.of_node, "xlnx,rxcsum", &value);
+	if (!ret) {
+		switch (value) {
 		case 1:
 			lp->csum_offload_on_rx_path =
 				XAE_FEATURE_PARTIAL_RX_CSUM;
@@ -1573,13 +1573,8 @@ static int axienet_of_probe(struct platform_device *pdev)
 	 * Here we check for memory allocated for Rx/Tx in the hardware from
 	 * the device-tree and accordingly set flags.
 	 */
-	p = (__be32 *)of_get_property(pdev->dev.of_node, "xlnx,rxmem", NULL);
-	if (p)
-		lp->rxmem = be32_to_cpup(p);
-	p = (__be32 *)of_get_property(pdev->dev.of_node,
-				      "xlnx,phy-type", NULL);
-	if (p)
-		lp->phy_type = be32_to_cpup(p);
+	of_property_read_u32(pdev->dev.of_node, "xlnx,rxmem", &lp->rxmem);
+	of_property_read_u32(pdev->dev.of_node, "xlnx,phy-type", &lp->phy_type);
 
 	/* Find the DMA node, map the DMA registers, and decode the DMA IRQs */
 	np = of_parse_phandle(pdev->dev.of_node, "axistream-connected", 0);
@@ -1609,13 +1604,13 @@ static int axienet_of_probe(struct platform_device *pdev)
 	}
 
 	/* Retrieve the MAC address */
-	addr = of_get_property(pdev->dev.of_node, "local-mac-address", &size);
-	if ((!addr) || (size != 6)) {
+	ret = of_property_read_u8_array(pdev->dev.of_node,
+					"local-mac-address", mac_addr, 6);
+	if (ret) {
 		dev_err(&pdev->dev, "could not find MAC address\n");
-		ret = -ENODEV;
 		goto free_netdev;
 	}
-	axienet_set_mac_address(ndev, (void *) addr);
+	axienet_set_mac_address(ndev, (void *)mac_addr);
 
 	lp->coalesce_count_rx = XAXIDMA_DFT_RX_THRESHOLD;
 	lp->coalesce_count_tx = XAXIDMA_DFT_TX_THRESHOLD;