This is a good idea, thanks.
在 2022/9/5 21:17, Rasmus Villemoes 写道:
On 05/09/2022 08.26, Zhang Jianhua wrote:
fsl-ftm-alarm driver can be built out of tree, so change the
macro device_initcall() to module_init() for standard usage.
"out of tree" usually refers to modules that are not part of the
mainline kernel.
"can be built as a module" is more accurate and less confusing.
fsl-ftm-alarm registers a platform driver in module_init function,
however there is no module_exit function to unregister it, and it will
occur resource leak, so add ftm_alarm_exit() function for module_exit.
It seems that you can avoid a lot of boilerplate using the
module_platform_driver macro. The single line
module_platform_driver(ftm_rtc_driver);
should/could replace the ftm_alarm_init/ftm_alarm_exit functions and the
explicit module_init()/module_exit() lines.
Rasmus
