static ssize_t mt_printk_ctrl_write(struct file *filp, const char *ubuf, ssize_t cnt, loff_t *data)
{
char buf[64];
int val;
int ret;
if (cnt >= sizeof(buf))
return -EINVAL;
if (copy_from_user(&buf, ubuf, cnt))
return -EFAULT;
buf[cnt] = 0;
ret = strict_strtoul(buf, 10, (unsigned long *)&val);
if (val == 0) {
mt_disable_uart();
} else if (val == 1) {
mt_need_uart_console = 1;
mt_enable_uart();
pr_err("need uart log\n");
}
if (ret < 0)
return ret;
pr_err(" %d\n", val);
return cnt;
}
static void bootup_finish(void)
{
mt_disable_uart();
}