1 #include <linux/platform_device.h>
2 #include <linux/pm_runtime.h>
3 #include <linux/module.h>
4 #include <linux/of_platform.h>
5
am335x_child_probe(struct platform_device * pdev)6 static int am335x_child_probe(struct platform_device *pdev)
7 {
8 int ret;
9
10 pm_runtime_enable(&pdev->dev);
11
12 ret = of_platform_populate(pdev->dev.of_node, NULL, NULL, &pdev->dev);
13 if (ret)
14 goto err;
15
16 return 0;
17 err:
18 pm_runtime_disable(&pdev->dev);
19 return ret;
20 }
21
22 static const struct of_device_id am335x_child_of_match[] = {
23 { .compatible = "ti,am33xx-usb" },
24 { },
25 };
26 MODULE_DEVICE_TABLE(of, am335x_child_of_match);
27
28 static struct platform_driver am335x_child_driver = {
29 .probe = am335x_child_probe,
30 .driver = {
31 .name = "am335x-usb-childs",
32 .of_match_table = am335x_child_of_match,
33 },
34 };
35
am335x_child_init(void)36 static int __init am335x_child_init(void)
37 {
38 return platform_driver_register(&am335x_child_driver);
39 }
40 module_init(am335x_child_init);
41
42 MODULE_DESCRIPTION("AM33xx child devices");
43 MODULE_LICENSE("GPL v2");
44