linux-kernel - [PATCH 1/3] net: ocelot: add support to get mac from device-tree

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Date:   Thu, 28 Oct 2021 15:49:30 +0200
From:   Clément Léger <clement.leger@...tlin.com>
To:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Vladimir Oltean <vladimir.oltean@....com>,
        Claudiu Manoil <claudiu.manoil@....com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        UNGLinuxDriver@...rochip.com, Andrew Lunn <andrew@...n.ch>
Cc:     Clément Léger <clement.leger@...tlin.com>,
        netdev@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 1/3] net: ocelot: add support to get mac from device-tree

Add support to get mac from device-tree using of_get_mac_address.

Signed-off-by: Clément Léger <clement.leger@...tlin.com>
---
 drivers/net/ethernet/mscc/ocelot_vsc7514.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mscc/ocelot_vsc7514.c b/drivers/net/ethernet/mscc/ocelot_vsc7514.c
index d51f799e4e86..c39118e5b3ee 100644
--- a/drivers/net/ethernet/mscc/ocelot_vsc7514.c
+++ b/drivers/net/ethernet/mscc/ocelot_vsc7514.c
@@ -526,7 +526,10 @@ static int ocelot_chip_init(struct ocelot *ocelot, const struct ocelot_ops *ops)
 
 	ocelot_pll5_init(ocelot);
 
-	eth_random_addr(ocelot->base_mac);
+	ret = of_get_mac_address(ocelot->dev->of_node, ocelot->base_mac);
+	if (ret)
+		eth_random_addr(ocelot->base_mac);
+
 	ocelot->base_mac[5] &= 0xf0;
 
 	return 0;
-- 
2.33.0