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From:   Corentin Labbe <clabbe@baylibre.com>
To:     davem@davemloft.net, kuba@kernel.org, linus.walleij@linaro.org,
        ulli.kroll@googlemail.com
Cc:     linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        netdev@vger.kernel.org, Corentin Labbe <clabbe@baylibre.com>
Subject: [PATCH] net: ethernet: cortina: permit to set mac address in DT
Date:   Tue, 26 Oct 2021 19:17:03 +0000
Message-Id: <20211026191703.1174086-1-clabbe@baylibre.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
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Add ability of setting mac address in DT for cortina ethernet driver.

Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
---
 drivers/net/ethernet/cortina/gemini.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/net/ethernet/cortina/gemini.c b/drivers/net/ethernet/cortina/gemini.c
index 941f175fb911..f6aa2387a1af 100644
--- a/drivers/net/ethernet/cortina/gemini.c
+++ b/drivers/net/ethernet/cortina/gemini.c
@@ -2356,12 +2356,14 @@ static void gemini_port_save_mac_addr(struct gemini_ethernet_port *port)
 static int gemini_ethernet_port_probe(struct platform_device *pdev)
 {
 	char *port_names[2] = { "ethernet0", "ethernet1" };
+	struct device_node *np = pdev->dev.of_node;
 	struct gemini_ethernet_port *port;
 	struct device *dev = &pdev->dev;
 	struct gemini_ethernet *geth;
 	struct net_device *netdev;
 	struct device *parent;
 	unsigned int id;
+	u8 mac[ETH_ALEN];
 	int irq;
 	int ret;
 
@@ -2466,6 +2468,12 @@ static int gemini_ethernet_port_probe(struct platform_device *pdev)
 	netif_napi_add(netdev, &port->napi, gmac_napi_poll,
 		       DEFAULT_NAPI_WEIGHT);
 
+	ret = of_get_mac_address(np, mac);
+	if (!ret) {
+		dev_info(dev, "Setting macaddr from DT %pM\n", mac);
+		memcpy(port->mac_addr, mac, ETH_ALEN);
+	}
+
 	if (is_valid_ether_addr((void *)port->mac_addr)) {
 		eth_hw_addr_set(netdev, (u8 *)port->mac_addr);
 	} else {
-- 
2.32.0