net: ethernet: cortina: permit to set mac address in DT

Add ability of setting mac address in DT for cortina ethernet driver.

Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20220125210811.54350-1-clabbe@baylibre.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/net/ethernet/cortina/gemini.c b/drivers/net/ethernet/cortina/gemini.c
index c78b99a497df47db49e4f0ed96c255cf06eb604d..8014eb33937c4dbdd1d9df7054e6002e384ec385 100644 (file)
--- a/drivers/net/ethernet/cortina/gemini.c
+++ b/drivers/net/ethernet/cortina/gemini.c
@@ -2363,11 +2363,13 @@ 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;
+       u8 mac[ETH_ALEN];
        unsigned int id;
        int irq;
        int ret;
@@ -2473,6 +2475,12 @@ 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 {