linux-kernel - Re: [PATCH 1/4] firmware: arm_scmi: bus: Bypass setting fwnode for scmi cpufreq

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Message-ID: <Z86w3ZRS6T2MvV3X@bogus>
Date: Mon, 10 Mar 2025 09:29:01 +0000
From: Sudeep Holla <sudeep.holla@....com>
To: Peng Fan <peng.fan@....nxp.com>
Cc: Cristian Marussi <cristian.marussi@....com>,
	Sudeep Holla <sudeep.holla@....com>,
	Saravana Kannan <saravanak@...gle.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Linus Walleij <linus.walleij@...aro.org>,
	Dong Aisheng <aisheng.dong@....com>,
	Fabio Estevam <festevam@...il.com>, Shawn Guo <shawnguo@...nel.org>,
	Jacky Bai <ping.bai@....com>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Sascha Hauer <s.hauer@...gutronix.de>, <arm-scmi@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, <linux-gpio@...r.kernel.org>,
	<imx@...ts.linux.dev>, Peng Fan <peng.fan@....com>
Subject: Re: [PATCH 1/4] firmware: arm_scmi: bus: Bypass setting fwnode for
 scmi cpufreq

On Thu, Feb 20, 2025 at 08:59:18AM +0800, Peng Fan wrote:
>
> Sorry, if I misunderstood.
>
> I will give a look on this and propose a RFC.
>
> DT maintainers may ask for a patchset including binding change and
> driver changes to get a whole view on the compatible stuff.
>
> BTW, Cristian, Saravana if you have any objections/ideas or would take on this
> effort, please let me know.
>

Can you point me to the DTS with which you are seeing this issue ?
I am trying to reproduce the issue but so far not successful. I did
move to power-domains for CPUFreq on Juno. IIUC all we need is both cpufreq
and performance genpd drivers in the kernel and then GPU using perf genpd
fails with probe deferral right ? I need pointers to reproduce the issue
so that I can check if what I have cooked up as a solution really works.

--
Regards,
Sudeep