Re: [EXT] regression due to soc_device_match not handling defer (Was: [PATCH v4 4/4] soc: imx8m: change to use platform driver)

[Peng Fan (OSS)]

Hi Lucas,

On 2021/6/24 18:36, Lucas Stach wrote:
> Hi all,
>
> Am Donnerstag, dem 15.04.2021 um 01:33 +0000 schrieb Peng Fan:
> > > (Was: [PATCH v4 4/4] soc: imx8m: change to use platform driver)
> > >
> > > Alice Guo (OSS) wrote on Tue, Mar 30, 2021 at 02:41:23AM +0000:
> > > > Thanks for reporting this issue, I'll check and add a fix to handle defer probe.
> > >
> > > I haven't seen any follow up on this, have you had a chance to take a look?
> >
> > We are trying to find a proper solution for this.
> >
> > The proper method might be make soc_device_match return probe defer,
> > and take early soc attr into consideration, but I am not sure this would win
> > maintainer's vote.
> >
> > > If this won't make it for 5.12 (in a couple of week probably?) would it make
> > > sense to revert 7d981405d0fd ("soc: imx8m: change to use platform
> > > driver") for now?
> >
> > Please no. We are targeting android GKI, make driver as modules.
> > And reverting to original method will also break kexec.
> >
> > I am on IRC #linux-imx, we could take more if you would like to.
>
> It seems this stalled. This regression totally breaks the kernel boot
> on all i.MX8M devices including the CAAM. 5.13 is about to be released,
> as the second upstream kernel release after 5.12 without a fix for this
> issue. What's the plan here?
>
> If there is no good solution small enough to be ported to the stable
> kernels in sight, I think the only sensible option here is to revert
> this change.

I not have time to touch this, maybe you could submit a revert for this.

Thanks,
Peng.

> Regards,
> Lucas