This source file includes following definitions.
- emac_arc_probe
- emac_arc_remove
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10 #include <linux/etherdevice.h>
11 #include <linux/module.h>
12 #include <linux/of_net.h>
13 #include <linux/platform_device.h>
14
15 #include "emac.h"
16
17 #define DRV_NAME "emac_arc"
18 #define DRV_VERSION "1.0"
19
20 static int emac_arc_probe(struct platform_device *pdev)
21 {
22 struct device *dev = &pdev->dev;
23 struct net_device *ndev;
24 struct arc_emac_priv *priv;
25 int interface, err;
26
27 if (!dev->of_node)
28 return -ENODEV;
29
30 ndev = alloc_etherdev(sizeof(struct arc_emac_priv));
31 if (!ndev)
32 return -ENOMEM;
33 platform_set_drvdata(pdev, ndev);
34 SET_NETDEV_DEV(ndev, dev);
35
36 priv = netdev_priv(ndev);
37 priv->drv_name = DRV_NAME;
38 priv->drv_version = DRV_VERSION;
39
40 interface = of_get_phy_mode(dev->of_node);
41 if (interface < 0)
42 interface = PHY_INTERFACE_MODE_MII;
43
44 priv->clk = devm_clk_get(dev, "hclk");
45 if (IS_ERR(priv->clk)) {
46 dev_err(dev, "failed to retrieve host clock from device tree\n");
47 err = -EINVAL;
48 goto out_netdev;
49 }
50
51 err = arc_emac_probe(ndev, interface);
52 out_netdev:
53 if (err)
54 free_netdev(ndev);
55 return err;
56 }
57
58 static int emac_arc_remove(struct platform_device *pdev)
59 {
60 struct net_device *ndev = platform_get_drvdata(pdev);
61 int err;
62
63 err = arc_emac_remove(ndev);
64 free_netdev(ndev);
65 return err;
66 }
67
68 static const struct of_device_id emac_arc_dt_ids[] = {
69 { .compatible = "snps,arc-emac" },
70 { }
71 };
72 MODULE_DEVICE_TABLE(of, emac_arc_dt_ids);
73
74 static struct platform_driver emac_arc_driver = {
75 .probe = emac_arc_probe,
76 .remove = emac_arc_remove,
77 .driver = {
78 .name = DRV_NAME,
79 .of_match_table = emac_arc_dt_ids,
80 },
81 };
82
83 module_platform_driver(emac_arc_driver);
84
85 MODULE_AUTHOR("Romain Perier <romain.perier@gmail.com>");
86 MODULE_DESCRIPTION("ARC EMAC platform driver");
87 MODULE_LICENSE("GPL");