55 lines
1.2 KiB
C
55 lines
1.2 KiB
C
#include <linux/platform_device.h>
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#include <linux/pm_runtime.h>
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#include <linux/module.h>
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#include <linux/of_platform.h>
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static int am335x_child_probe(struct platform_device *pdev)
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{
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int ret;
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pm_runtime_enable(&pdev->dev);
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ret = of_platform_populate(pdev->dev.of_node, NULL, NULL, &pdev->dev);
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if (ret)
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goto err;
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return 0;
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err:
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pm_runtime_disable(&pdev->dev);
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return ret;
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}
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static int of_remove_populated_child(struct device *dev, void *d)
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{
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struct platform_device *pdev = to_platform_device(dev);
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of_device_unregister(pdev);
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return 0;
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}
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static int am335x_child_remove(struct platform_device *pdev)
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{
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device_for_each_child(&pdev->dev, NULL, of_remove_populated_child);
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pm_runtime_disable(&pdev->dev);
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return 0;
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}
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static const struct of_device_id am335x_child_of_match[] = {
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{ .compatible = "ti,am33xx-usb" },
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{ },
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};
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MODULE_DEVICE_TABLE(of, am335x_child_of_match);
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static struct platform_driver am335x_child_driver = {
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.probe = am335x_child_probe,
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.remove = am335x_child_remove,
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.driver = {
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.name = "am335x-usb-childs",
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.of_match_table = am335x_child_of_match,
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},
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};
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module_platform_driver(am335x_child_driver);
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MODULE_DESCRIPTION("AM33xx child devices");
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MODULE_LICENSE("GPL v2");
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