linux-kernel - Re: [PATCH] cpufreq: Add CPU frequency policy change notification support

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Message-ID: <qlcwa27dujkhxdyeminfzc3435xdz6z7bc627hd4fukr5qbhiw@anrsyspxw4mz>
Date: Wed, 21 Jan 2026 15:32:53 +0530
From: Viresh Kumar <viresh.kumar@...aro.org>
To: Tony W Wang-oc <TonyWWang-oc@...oxin.com>
Cc: rafael@...nel.org, linux-pm@...r.kernel.org, 
	linux-kernel@...r.kernel.org, CobeChen@...oxin.com, TimGuo@...oxin.com, LeoLiu-oc@...oxin.com, 
	LindaChai@...oxin.com
Subject: Re: [PATCH] cpufreq: Add CPU frequency policy change notification
 support

On 21-01-26, 16:37, Tony W Wang-oc wrote:
> The expectation is to register a notifier of type CPUFREQ_POLICY_NOTIFIER
> via cpufreq_register_notifier in one of our drivers. The notifier callback
> will configure Zhaoxin registers to different values based on the different
> cpufreq governors when the event is CPUFREQ_GOVERNOR_CHANGE, thereby
> allowing the Zhaoxin hardware to adopt different power management
> strategies.

Firstly, for this change to be acceptable, we would need your upstream
platform specific changes as well.

And then I am still not sure if this it the right way to solve this
problem.

-- 
viresh