* Usage of notifier callback in devfreq
@ 2015-02-13 20:41 vkalia
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From: vkalia @ 2015-02-13 20:41 UTC (permalink / raw)
To: linux-pm
Hi
We want to implement DCVS for video device. Video device interrupts the
driver when the frequency needs to be updated. Since conventional
governors work on polling mechanism we would like to know how we can
implement a governor with event based mechanism. We would like to use the
notifier callback in devfreq for this to wake up the governor at certain
points so it can query the new stats from video driver. Is this the right
approach? If not can you please suggest an alternative. Any examples will
be of great help.
Notifier callback we plan to use is @
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/drivers/devfreq/devfreq.c?id=refs/tags/v3.19#n480
Thanks
Vinay
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