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From:   Peng Fan <peng.fan@nxp.com>
To:     Sudeep Holla <sudeep.holla@arm.com>,
        "Peng Fan (OSS)" <peng.fan@oss.nxp.com>
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Subject: RE: [PATCH] arm64: kernel: smp: ignore disabled cpu node
Thread-Topic: [PATCH] arm64: kernel: smp: ignore disabled cpu node
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Date:   Wed, 19 Apr 2023 11:22:09 +0000
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> Subject: Re: [PATCH] arm64: kernel: smp: ignore disabled cpu node
>
> On Wed, Apr 19, 2023 at 05:40:39PM +0800, Peng Fan (OSS) wrote:
> > From: Peng Fan <peng.fan@nxp.com>
> >
> > If the cpu node is set disabled in device tree, we should ignore the
> > node. i.MX8MP has some variants, which have one or two or four A53
> cores.
> > The current imx8mp device tree use the full feature SoC. With such
> > device tree to bring the variant with one or two A53 cores will cause
> > issue.
> >
> > The firmware will update the status property, and kernel will check
> > the property before bring up the core.
> >
>
> IIRC it has been discussed in the past[1][2], has anything changed now ?

Ok, removing cpu nodes also means we need also runtime update
cooling devices node, and etc.

Thanks,
Peng.
>
> --
> Regards,
> Sudeep
>
> [1]
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