diff mbox series

[v4,net-next,07/10] net: korina: Add support for device tree

Message ID 20210416084712.62561-8-tsbogend@alpha.franken.de
State Superseded
Headers show
Series net: Korina improvements | expand

Commit Message

Thomas Bogendoerfer April 16, 2021, 8:47 a.m. UTC
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 | 24 ++++++++++++++++++++++--
 1 file changed, 22 insertions(+), 2 deletions(-)

Comments

Sergei Shtylyov April 16, 2021, 9:21 a.m. UTC | #1
Hello!

On 16.04.2021 11:47, Thomas Bogendoerfer wrote:

> 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 | 24 ++++++++++++++++++++++--
>   1 file changed, 22 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/net/ethernet/korina.c b/drivers/net/ethernet/korina.c
> index d6dbbdd43d7c..cd078a5c679b 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>
> @@ -1068,7 +1070,12 @@ 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 {
> +		if (of_get_mac_address(pdev->dev.of_node, dev->dev_addr))

    *else* *if* here, and no need for {} then? :-)

> +			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");
[...]
MBR, Sergei
diff mbox series

Patch

diff --git a/drivers/net/ethernet/korina.c b/drivers/net/ethernet/korina.c
index d6dbbdd43d7c..cd078a5c679b 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>
@@ -1068,7 +1070,12 @@  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 {
+		if (of_get_mac_address(pdev->dev.of_node, dev->dev_addr))
+			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");
@@ -1148,8 +1155,21 @@  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,
 };