不同版本内核中timer函数中的data参数如何平替？

问题遇到的现象和发生背景

在驱动学习按键消抖时使用定时器函数，发现教程里的timer函数，我用着有错误，后来发现是内核版本不对，借助了本贴，修改了函数，但原版本的参数data，不知道可以用什么替换？或者怎么从timer_list *中取出data参数

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遇到的现象和发生背景，请写出第一个错误信息

可参考本图：

以下是我的全部代码：

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/fs.h>
#include <linux/slab.h>
#include <linux/uaccess.h>
#include <linux/io.h>
#include <linux/cdev.h>
#include <linux/device.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_irq.h>
#include <linux/gpio.h>
#include <linux/of_gpio.h>
#include <linux/string.h>
#include <linux/irq.h>
#include <asm/mach/map.h>
#include <asm/uaccess.h>
#include <asm/io.h>
#include <linux/interrupt.h>


#define IMX6UIRQ_CNT     1
#define IMX6UIRQ_NAME    "imx6uirq"
#define KEY_NUM            1
#define KEY0VALUE          0X01
#define INVAKEY            0XFF


/* key结构体 */
struct irq_keydesc{
    int gpio;               /* io编号 */
    int irqnum;             /* 中断号 */
    unsigned char value;    /* 键值 */
    char name[10];          /* 名字 */
    irqreturn_t (*handler) (int, void *);  /* 中断处理函数 */
};


/* imx6uirq设备结构体 */
struct imx6uirq_dev{
    dev_t devid;
    int major;
    int minor;
    struct cdev cdev;
    struct class *class;
    struct device *device;
    struct device_node *nd;
    struct irq_keydesc irqkey[KEY_NUM];
    struct timer_list timer; 

    atomic_t keyvalue;
    atomic_t releasekey;

};

struct imx6uirq_dev imx6uirq; /* irq设备 */

static int imx6uirq_open(struct inode *inode, struct file *filp)
{
    filp->private_data = &imx6uirq;
    return 0;
}


static ssize_t imx6uirq_read(struct file *filp, char __user *buf, size_t cnt, loff_t *offt)
{
    int ret = 0;
    unsigned char keyvalue;
    unsigned char releasekey;
    struct imx6uirq_dev *dev = filp->private_data;

    keyvalue = atomic_read(&dev->keyvalue);
    releasekey = atomic_read(&dev->releasekey);

    if(releasekey) {        /* 有效按键 */
        if(keyvalue & 0x80) {
            keyvalue &= ~0x80;
            ret = copy_to_user(buf, &keyvalue, sizeof(keyvalue));
        } else {
            goto data_error;
        }
        atomic_set(&dev->releasekey, 0); /* 按下标志清零 */
    } else {
        goto data_error;
    }


    return ret;

data_error:
    return -EINVAL;
}

/* 操作集 */
static const struct file_operations imx6uirq_fops = {
    .owner        =    THIS_MODULE,
    .open        =    imx6uirq_open,
    .read       =   imx6uirq_read,
};

/* 按键中断处理函数 */
static irqreturn_t key0_handler(int irq, void *dev_id)
{
    struct imx6uirq_dev *dev = dev_id;

    dev->timer.data = (volatile long)dev_id;
    mod_timer(&dev->timer, jiffies + msecs_to_jiffies(20)); /* 20ms定时 */

    return IRQ_HANDLED;
}

/* 定时器处理函数 */
 void timer_function(struct timer_list    *t)
 {
    int value = 0;
 //   struct imx6uirq_dev *dev = (struct imx6uirq_dev*)arg;
    struct  imx6uirq_dev   *dev    =   from_timer(&imx6uirq,  t,  timer);
    

    value = gpio_get_value(dev->irqkey[0].gpio);
    if(value == 0)   {          /* 按下 */
        atomic_set(&dev->keyvalue, dev->irqkey[0].value);
    } else if(value == 1) {     /* 释放 */
        atomic_set(&dev->keyvalue, 0X80 | (dev->irqkey[0].value));
        atomic_set(&dev->releasekey, 1);  /* 完成的按键过程 */
    }
}

   
/* 按键初始化 */
static int keyio_init(struct imx6uirq_dev *dev)
{
    int ret  = 0;
    int i = 0;

    /* 1,按键初始化 */
    dev->nd = of_find_node_by_path("/key");
    if(dev->nd == NULL) {
        ret = -EINVAL;
        goto fail_nd;
    }

    for(i = 0; i < KEY_NUM; i++) {
        dev->irqkey[i].gpio = of_get_named_gpio(dev->nd, "key-gpios", i);
    }
    for(i = 0; i < KEY_NUM; i++) {
        memset(dev->irqkey[i].name, 0, sizeof(dev->irqkey[i].name));
        sprintf(dev->irqkey[i].name, "KEY%d", i);
        gpio_request(dev->irqkey[i].gpio, dev->irqkey[i].name);
        gpio_direction_input(dev->irqkey[i].gpio);

        dev->irqkey[i].irqnum = gpio_to_irq(dev->irqkey[i].gpio); /* 获取中断号 */
#if 0
        dev->irqkey[i].irqnum = irq_of_parse_and_map(dev->nd, i);
#endif

    }

    dev->irqkey[0].handler = key0_handler;
    dev->irqkey[0].value  = KEY0VALUE;

    /* 2,按键中断初始化 */
    for(i = 0; i < KEY_NUM; i++) {
        ret = request_irq(dev->irqkey[i].irqnum, dev->irqkey[i].handler, 
                         IRQF_TRIGGER_RISING|IRQF_TRIGGER_FALLING, 
                         dev->irqkey[i].name, &imx6uirq);
        if(ret) {
            printk("irq %d request failed!\r\n", dev->irqkey[i].irqnum);
            goto fail_irq;
        }
    }

    /* 3、初始化定时器 */
 //   init_timer(&imx6uirq.timer);
 //   imx6uirq.timer.function = timer_func;
timer_setup(&imx6uirq.timer,    timer_function, 0);
    return 0;

fail_irq:
    for(i = 0; i < KEY_NUM; i++) {
        gpio_free(dev->irqkey[i].gpio);
    }
fail_nd:
    return ret;
}

/* 驱动入口函数 */
static int __init imx6uirq_init(void)
{

    int ret = 0;

    /* 注册字符设备驱动 */
    imx6uirq.major = 0;
    if(imx6uirq.major) { /* 给定主设备号 */
        imx6uirq.devid = MKDEV(imx6uirq.major, 0);
        ret = register_chrdev_region(imx6uirq.devid, IMX6UIRQ_CNT, IMX6UIRQ_NAME);
    } else {            /* 没给定设备号 */
        ret = alloc_chrdev_region(&imx6uirq.devid, 0, IMX6UIRQ_CNT, IMX6UIRQ_NAME);
        imx6uirq.major = MAJOR(imx6uirq.devid);
        imx6uirq.minor = MINOR(imx6uirq.devid);
    }
    if(ret < 0) {
        goto fail_devid;
    }
    printk("imx6uirq major = %d, minor = %d\r\n", imx6uirq.major, imx6uirq.minor);

    /* 2,初始化cdev */
    imx6uirq.cdev.owner = THIS_MODULE;
    cdev_init(&imx6uirq.cdev, &imx6uirq_fops);

    /* 3,添加cdev */
    ret = cdev_add(&imx6uirq.cdev, imx6uirq.devid, IMX6UIRQ_CNT);
    if (ret)
        goto fail_cdevadd;

    /* 4、创建类 */
    imx6uirq.class = class_create(THIS_MODULE, IMX6UIRQ_NAME);
    if(IS_ERR(imx6uirq.class)) {
        ret = PTR_ERR(imx6uirq.class);
        goto fail_class;
    }

    /* 5,创建设备  */
    imx6uirq.device = device_create(imx6uirq.class, NULL, imx6uirq.devid, NULL, IMX6UIRQ_NAME);
    if(IS_ERR(imx6uirq.device)) {
        ret = PTR_ERR(imx6uirq.device);
        goto fail_device;
    }

    /* 初始化IO */
    ret = keyio_init(&imx6uirq);
    if(ret < 0) {
        goto fail_keyinit;
    }


    /* 初始化原子变量 */
    atomic_set(&imx6uirq.keyvalue, INVAKEY);
    atomic_set(&imx6uirq.releasekey, 0);

    return 0;

fail_keyinit:
fail_device:
    class_destroy(imx6uirq.class);
fail_class:
    cdev_del(&imx6uirq.cdev);
fail_cdevadd:
    unregister_chrdev_region(imx6uirq.devid, IMX6UIRQ_CNT);
fail_devid:
    return ret;

}

/* 驱动出口函数 */
static void __exit imx6uirq_exit(void)
{
    int i = 0;
    /*1、释放中断 */
    for(i = 0; i < KEY_NUM; i++) {
        free_irq(imx6uirq.irqkey[i].irqnum, &imx6uirq);
    }
    /* 2,释放IO */
    for(i = 0; i < KEY_NUM; i++) {
        gpio_free(imx6uirq.irqkey[i].gpio);
    }

    /* 3,删除定时器 */
    del_timer_sync(&imx6uirq.timer);

    /* 注销字符设备驱动 */
    cdev_del(&imx6uirq.cdev);
    unregister_chrdev_region(imx6uirq.devid, IMX6UIRQ_CNT);

    device_destroy(imx6uirq.class, imx6uirq.devid);
    class_destroy(imx6uirq.class);

}

module_init(imx6uirq_init);
module_exit(imx6uirq_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("ty");

运行结果及详细报错内容

我的解答思路和尝试过的方法，不写自己思路的，回答率下降 60%

我想要达到的结果，如果你需要快速回答，请尝试 “付费悬赏”

修改timer_function函数的参数，将data替换为t，即：
void timer_function(struct timer_list *t)
{
int value = 0;
struct imx6uirq_dev dev = (struct imx6uirq_dev)t->data;

value = gpio_get_value(dev->irqkey[0].gpio);
if(value == 0)   {          /* 按下 */
    atomic_set(&dev->keyvalue, dev->irqkey[0].value);
} else if(value == 1) {     /* 释放 */
    atomic_set(&dev->keyvalue, 0X80 | (dev->irqkey[0].value));
    atomic_set(&dev->releasekey, 1);  /* 完成的按键过程 */
}

}