qca-nss-dp: fix of_get_mac_address

package/qca/nss/qca-nss-dp/patches/0006-NSS-DP-fix-of_get_mac_address.patch

@@ -0,0 +1,50 @@
+From cadeb62a42296563141d6954eec58e34ef86778d Mon Sep 17 00:00:00 2001
+From: Robert Marko <robimarko@gmail.com>
+Date: Fri, 13 Aug 2021 20:12:08 +0200
+Subject: [PATCH] NSS-DP: fix of_get_mac_address()
+
+Recently OpenWrt backported the updated of_get_mac_address()
+function which returns and error code instead.
+
+So, patch the SSDK to use it and fix the compilation error.
+
+Signed-off-by: Robert Marko <robimarko@gmail.com>
+---
+ nss_dp_main.c | 13 ++++---------
+ 1 file changed, 4 insertions(+), 9 deletions(-)
+
+diff --git a/nss_dp_main.c b/nss_dp_main.c
+index 5580b13..28df280 100644
+--- a/nss_dp_main.c
++++ b/nss_dp_main.c
+@@ -434,9 +434,10 @@ static int32_t nss_dp_of_get_pdata(struct device_node *np,
+ 				   struct net_device *netdev,
+ 				   struct gmac_hal_platform_data *hal_pdata)
+ {
+-	uint8_t *maddr;
++	u8 maddr[ETH_ALEN];
+ 	struct nss_dp_dev *dp_priv;
+ 	struct resource memres_devtree = {0};
++	int ret;
+
+ 	dp_priv = netdev_priv(netdev);
+
+@@ -475,14 +476,8 @@ static int32_t nss_dp_of_get_pdata(struct device_node *np,
+ 	of_property_read_u32(np, "qcom,forced-speed", &dp_priv->forced_speed);
+ 	of_property_read_u32(np, "qcom,forced-duplex", &dp_priv->forced_duplex);
+
+-	maddr = (uint8_t *)of_get_mac_address(np);
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(5, 4, 0))
+-	if (IS_ERR((void *)maddr)) {
+-		maddr = NULL;
+-	}
+-#endif
+-
+-	if (maddr && is_valid_ether_addr(maddr)) {
++	ret = of_get_mac_address(np, maddr);
++	if (!ret && is_valid_ether_addr(maddr)) {
+ 		ether_addr_copy(netdev->dev_addr, maddr);
+ 	} else {
+ 		random_ether_addr(netdev->dev_addr);
+-- 
+2.31.1