#include <linux/platform_device.h> #include <linux/pm_runtime.h> #include <linux/module.h> #include <linux/of_platform.h> static int am335x_child_probe(struct platform_device *pdev) { int ret; pm_runtime_enable(&pdev->dev); ret = of_platform_populate(pdev->dev.of_node, NULL, NULL, &pdev->dev); if (ret) goto err; return 0; err: pm_runtime_disable(&pdev->dev); return ret; } static const struct of_device_id am335x_child_of_match[] = { { .compatible = "ti,am33xx-usb" }, { }, }; MODULE_DEVICE_TABLE(of, am335x_child_of_match); static struct platform_driver am335x_child_driver = { .probe = am335x_child_probe, .driver = { .name = "am335x-usb-childs", .of_match_table = am335x_child_of_match, }, }; static int __init am335x_child_init(void) { return platform_driver_register(&am335x_child_driver); } module_init(am335x_child_init); MODULE_DESCRIPTION("AM33xx child devices"); MODULE_LICENSE("GPL v2");