[PATCH v3 net-next 07/10] net: korina: Add support for device tree
From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Date: 2021-04-14 23:07:20
Also in:
lkml
Subsystem:
networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
If there is no mac address passed via platform data try to get it via device tree and fall back to a random mac address, if all fail. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> --- drivers/net/ethernet/korina.c | 28 ++++++++++++++++++++++++++-- 1 file changed, 26 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/korina.c b/drivers/net/ethernet/korina.c
index 1d7dead17ac3..7646ccc9d7e8 100644
--- a/drivers/net/ethernet/korina.c
+++ b/drivers/net/ethernet/korina.c@@ -43,6 +43,8 @@ #include <linux/ioport.h> #include <linux/iopoll.h> #include <linux/in.h> +#include <linux/of_device.h> +#include <linux/of_net.h> #include <linux/slab.h> #include <linux/string.h> #include <linux/delay.h>
@@ -1066,7 +1068,16 @@ static int korina_probe(struct platform_device *pdev) SET_NETDEV_DEV(dev, &pdev->dev); lp = netdev_priv(dev); - memcpy(dev->dev_addr, mac_addr, ETH_ALEN); + if (mac_addr) { + ether_addr_copy(dev->dev_addr, mac_addr); + } else { + u8 ofmac[ETH_ALEN]; + + if (of_get_mac_address(pdev->dev.of_node, ofmac) == 0) + ether_addr_copy(dev->dev_addr, ofmac); + else + eth_hw_addr_random(dev); + } lp->rx_irq = platform_get_irq_byname(pdev, "korina_rx"); lp->tx_irq = platform_get_irq_byname(pdev, "korina_tx");
@@ -1146,8 +1157,21 @@ static int korina_remove(struct platform_device *pdev) return 0; } +#ifdef CONFIG_OF +static const struct of_device_id korina_match[] = { + { + .compatible = "idt,3243x-emac", + }, + { } +}; +MODULE_DEVICE_TABLE(of, korina_match); +#endif + static struct platform_driver korina_driver = { - .driver.name = "korina", + .driver = { + .name = "korina", + .of_match_table = of_match_ptr(korina_match), + }, .probe = korina_probe, .remove = korina_remove, };
--
2.29.2