linux led驱动移植

// 原驱动代码片段
static struct platform_device led_device = {
    .name = "my_led",
    .id = -1,
    .dev = {
        .platform_data = &led_pdata,
    },
};

static struct platform_driver led_driver = {
    .probe = led_probe,
    .remove = led_remove,
    .driver = {
        .name = "my_led",
    },
};

module_platform_driver(led_driver);

// 新平台设备树描述
leds {
    compatible = "my-led";
    my_led {
        gpios = <&gpio_chip0 10 GPIO_ACTIVE_LOW>;
    };
};

// 修改后的驱动代码
static const struct of_device_id led_of_match[] = {
    { .compatible = "my-led", },
    { /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, led_of_match);

static struct platform_driver led_driver = {
    .probe = led_probe,
    .remove = led_remove,
    .driver = {
        .name = "my_led",
        .of_match_table = led_of_match,
    },
};

module_platform_driver(led_driver);