linux-kernel - Re: [Resend PATCH] topology: Set capacity_freq

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Message-ID: <CAK4VdL3Bg70ycz5vd4RfwNYa3KcYU8rdPX==i7znzQFw_EgTjA@mail.gmail.com>
Date: Wed, 31 Jan 2024 14:56:35 +0100
From: Erico Nunes <nunes.erico@...il.com>
To: Vincent Guittot <vincent.guittot@...aro.org>
Cc: mingo@...hat.com, peterz@...radead.org, juri.lelli@...hat.com, 
	dietmar.eggemann@....com, rostedt@...dmis.org, bsegall@...gle.com, 
	mgorman@...e.de, bristot@...hat.com, vschneid@...hat.com, 
	sudeep.holla@....com, gregkh@...uxfoundation.org, rafael@...nel.org, 
	linux-kernel@...r.kernel.org, lukasz.luba@....com, ionela.voinescu@....com
Subject: Re: [Resend PATCH] topology: Set capacity_freq_ref in all cases

On Wed, Jan 17, 2024 at 8:06 PM Vincent Guittot
<vincent.guittot@...aro.org> wrote:
>
> If "capacity-dmips-mhz" is not set, raw_capacity is null and we skip the
> normalization step which includes setting per_cpu capacity_freq_ref.
> Always register the notifier but skip the capacity normalization if
> raw_capacity is null.

I bisected an issue of cpufreq no longer working on v6.8-rc on a TI
SK-AM62 board and it pointed me to b3edde44e5d4 ("cpufreq/schedutil:
Use a fixed reference frequency").
This commit does fix the issue but doesn't appear to be merged
anywhere yet. It would be good to have this fixed before 6.8 release.

Tested-by: Erico Nunes <nunes.erico@...il.com>