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#include <linux/module.h> #include <linux/of_device.h> #include <linux/platform_device.h> static int my_driver_probe(struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node; if (!np) { dev_err(&pdev->dev, "No device tree node found "); return -ENODEV; } // ÆÊÎö×°±¸Ê÷½ÚµãÐÅÏ¢ u32 reg; if (of_property_read_u32(np, "reg", ®)) { dev_err(&pdev->dev, "Failed to read 'reg' property "); return -EINVAL; } dev_info(&pdev->dev, "Got 'reg' property: %u ", reg); return 0; } static const struct of_device_id my_driver_of_match[] = { { .compatible = "my_driver", }, { }, }; MODULE_DEVICE_TABLE(of, my_driver_of_match); static struct platform_driver my_driver = { .probe = my_driver_probe, .driver = { .name = "my_driver", .of_match_table = my_driver_of_match, .owner = THIS_MODULE, } }; module_platform_driver(my_driver); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Author Name"); MODULE_DESCRIPTION("Sample driver using Device Tree");
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