linux-kernel - Re: [PATCH 4/5] cpufreq: Add support for RISC-V CPU Frequency scaling drivers

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Message-Id: <20231215151723.46409-1-fusibrandon13@gmail.com>
Date: Fri, 15 Dec 2023 16:17:23 +0100
From: Brandon Cheo Fusi <fusibrandon13@...il.com>
To: viresh.kumar@...aro.org
Cc: aou@...s.berkeley.edu,
	conor+dt@...nel.org,
	devicetree@...r.kernel.org,
	fusibrandon13@...il.com,
	jernej.skrabec@...il.com,
	krzysztof.kozlowski+dt@...aro.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	linux-pm@...r.kernel.org,
	linux-riscv@...ts.infradead.org,
	linux-sunxi@...ts.linux.dev,
	palmer@...belt.com,
	paul.walmsley@...ive.com,
	rafael@...nel.org,
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	samuel@...lland.org,
	tiny.windzz@...il.com,
	wens@...e.org
Subject: Re: [PATCH 4/5] cpufreq: Add support for RISC-V CPU Frequency scaling drivers

On Thu, Dec 14, 2023 at 12:17 PM Viresh Kumar <viresh.kumar@...aro.org> wrote:
>
> On 14-12-23, 11:33, Brandon Cheo Fusi wrote:
> > Add Kconfig file for cpufreq scaling drivers that can handle RISC-V
> > CPUs. An entry is included for the Allwinner H6 cpufreq driver that
> > works with D1.
> >
> > Signed-off-by: Brandon Cheo Fusi <fusibrandon13@...il.com>
> > ---
> >  drivers/cpufreq/Kconfig       |  4 ++++
> >  drivers/cpufreq/Kconfig.riscv | 16 ++++++++++++++++
> >  2 files changed, 20 insertions(+)
> >  create mode 100644 drivers/cpufreq/Kconfig.riscv
>
> We don't have a separate kconfig file for each architecture. Only if
> there are too many entries for an architecture, we add a new file.
>
> --
> viresh

The sun50i cpufreq driver is currently only available when CONFIG_ARM or
CONFIG_ARM64 is selected, so this was the only decent way I could think
of making it accessible on either one of CONFIG_(ARM | ARM64 | RISC-V).
Any suggestions for a better workaround ?

Also I think future cpufreq drivers for RISC-V are going to happen, so we
might as well have the Kconfig file.

Kind Regards,
Brandon.