RE: [RFC] PM / devfreq: Add support for alerts

From: MyungJoo Ham
Date: Thu May 31 2018 - 02:17:44 EST


> Currently, DEVFREQ reevaluates the device state periodically and/or
> based on the OPP list changes. Private API has to be exposed to allow
> the device driver to alert/notify the governor to reevaluate when a new
> set of data is available. This makes the governor more coupled to a
> particular device driver. We can improve here by exposing a DEVFREQ API
> to allow the device drivers to send generic alerts to the governor.
>
> Signed-off-by: Akhil P Oommen <akhilpo@xxxxxxxxxxxxxx>
> ---
> drivers/devfreq/devfreq.c | 21 +++++++++++++++++++++
> drivers/devfreq/governor.h | 1 +
> include/linux/devfreq.h | 5 +++++
> 3 files changed, 27 insertions(+)
>

Hello Akhil,

It appears that this will have the same effect with
"[PATCH 08/11] PM / devfreq: Make update_devfreq() public" from Matthias Kaehlcke, doesn't it?


Cheers,
MyungJoo