Hi All,
I'm working on runtime PM on 2.6.33 and find the following in
drivers/base/platform.c
...
#ifdef CONFIG_PM_RUNTIME
int __weak platform_pm_runtime_suspend(struct device *dev)
{
return -ENOSYS;
};
int __weak platform_pm_runtime_resume(struct device *dev)
{
return -ENOSYS;
};
int __weak platform_pm_runtime_idle(struct device *dev)
{
return -ENOSYS;
};
#else /* !CONFIG_PM_RUNTIME */
...
So I guess runtime PM is not _really_ implemented on 2.6.33, for
platform devices,
and maybe other bus type drivers, class type drivers, isn't it?
And I found a message about PM for 2.6.33 in:
https://lists.linux-foundation.org/pipermail/linux-pm/2009-December/023394.html
Unfortunately, this git package is too large since my network condition is poor.
I wonder whether there are some patches for the original 2.6.33,
instead of a whole git project.
Best Regards
Pan Ruochen
May 31, 2011
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