linux-kernel - Re: [PATCH 0/2] LoongArch: Add Loongson-3 CPUFreq driver support

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Message-ID: <CAAhV-H6jLt_hZV3PmOXPPvPOy59G9_5XQK8Z3F97jG4Y7=ugNg@mail.gmail.com>
Date: Mon, 24 Jun 2024 21:59:49 +0800
From: Huacai Chen <chenhuacai@...nel.org>
To: Xi Ruoyao <xry111@...111.site>
Cc: Huacai Chen <chenhuacai@...ngson.cn>, "Rafael J . Wysocki" <rafael@...nel.org>, 
	Viresh Kumar <viresh.kumar@...aro.org>, loongarch@...ts.linux.dev, 
	linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org, 
	Xuerui Wang <kernel@...0n.name>, Jiaxun Yang <jiaxun.yang@...goat.com>
Subject: Re: [PATCH 0/2] LoongArch: Add Loongson-3 CPUFreq driver support

On Mon, Jun 24, 2024 at 9:30 PM Xi Ruoyao <xry111@...111.site> wrote:
>
> On Wed, 2024-06-12 at 14:42 +0800, Huacai Chen wrote:
> > This series add architectural preparation and CPUFreq driver for
> > Loongson-3 (based on LoongArch).
> >
> > Some of LoongArch processors support DVFS, their IOCSR.FEATURES has
> > IOCSRF_FREQSCALE set. And they has a micro-core in the package called
> > SMC (System Management Controller) to scale frequency, voltage, etc.
> >
> > Huacai Chen(2):
> >  LoongArch: Add architectural preparation for CPUFreq.
> >  cpufreq: Add Loongson-3 CPUFreq driver support.
> >
> > Signed-off-by: Huacai Chen <chenhuacai@...ngson.cn>
>
> A question: is it OK to enable cpufreq when overclocking is set via the
> firmware?
Yes, it's OK.

>
> --
> Xi Ruoyao <xry111@...111.site>
> School of Aerospace Science and Technology, Xidian University
>