linux-kernel - Re: [PATCH] pmdomain: arm: Fix debugfs node creation failure

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Message-ID: <Zryxrdodn2Y2xsej@bogus>
Date: Wed, 14 Aug 2024 14:31:25 +0100
From: Sudeep Holla <sudeep.holla@....com>
To: Ulf Hansson <ulf.hansson@...aro.org>
Cc: Sibi Sankar <quic_sibis@...cinc.com>, cristian.marussi@....com,
	linux-kernel@...r.kernel.org, arm-scmi@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-arm-msm@...r.kernel.org,
	linux-pm@...r.kernel.org, quic_rgottimu@...cinc.com,
	quic_kshivnan@...cinc.com, johan@...nel.org,
	Sudeep Holla <sudeep.holla@....com>, Peng Fan <peng.fan@....com>
Subject: Re: [PATCH] pmdomain: arm: Fix debugfs node creation failure

On Wed, Aug 14, 2024 at 02:38:24PM +0200, Ulf Hansson wrote:
>
> Sudeep, while I understand your point and I agree with it, it's really
> a simple fix that $subject patch is proposing. As the unique name
> isn't mandated by the SCMI spec, it looks to me that we should make a
> fix for it on the Linux side.
>

Yes, I did come to the conclusion that this is inevitable but hadn't
thought much on the exact solution. This email and you merging the original
patch made me think a bit quickly now 😉

> I have therefore decided to queue up $subject patch for fixes. Please
> let me know if you have any other proposals/objections moving forward.

The original patch may not work well with the use case Peng presented.
As the name and id may also match in their case, I was wondering if we
need to add some prefix like perf- or something to avoid the potential
clash across power and perf genpds ? I may be missing something still as
it is hard to visualise all possible case that can happen with variety
of platform and their firmware.

In short, happy to have some fix for the issue in some form whichever
works for wider set of platforms.

--
Regards,
Sudeep