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am437x RT系统移植的驱动模块问题

Other Parts Discussed in Thread: ADS7846, ADS7816

从TI官网上下载了一个ti-processor-sdk-linux-rt-am437x-evm-03.00.00.04-Linux-x86-Install 的RT的工具包,想移植RT系统到am4379-evm-A2的板子上,成功移植后内核能正常启动,但是触摸屏不能用,能显示但不能触摸,我参照原来的系统修改了dts文件,添加了ads7846这个节点,同时加了配置中断引脚,编译完替换dtb文件后驱动模块还是没有加载,请问怎么回事,是不是方法不对,应该怎么增加触摸驱动