linux-kernel - Re: [PATCH] cpufreq: fix using cpufreq-dt as module

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Message-ID: <20241125051302.6tmaog2ksfpk5m6u@vireshk-i7>
Date: Mon, 25 Nov 2024 10:43:02 +0530
From: Viresh Kumar <viresh.kumar@...aro.org>
To: Andreas Kemnade <andreas@...nade.info>
Cc: Kevin Hilman <khilman@...nel.org>, rafael@...nel.org,
	zhipeng.wang_1@....com, linux-pm@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-omap@...r.kernel.org,
	stable@...r.kernel.org
Subject: Re: [PATCH] cpufreq: fix using cpufreq-dt as module

On 04-11-24, 20:14, Andreas Kemnade wrote:
> no clear idea how. What aliases should I add? The cpufreq-dt-platdev is
> not a real driver, so I could not create mod_devicetable aliases to
> match a given device. It constructs a device under certain conditions
> depending on the board compatible, so no simple list of compatibles, it
> contains allow and blocklists.
> 
> cpufreq-dt then binds to that device and that one can be built as a
> module (which then made cpufreq-dt-platdev also a module, causing the
> trouble). I do not see any benefit from having cpufreq-dt-platdev as a
> module. ti-cpufreq has a similar role and is also just builtin.
> It does itself no real work but provides a device cpufreq-dt then binds
> to.
> 
> Handling module removal would probably need to be added and tested. I
> feel not comfortable having such as a regression fix and for stable.

Applied this patch for now (with some changes to commit log), as there is no
clean way to fix this for now. Got reports from other folks too about it.

-- 
viresh