[PATCH] arm64: dts: imx8mq: remove SoC ID compatible

[Krzysztof Kozlowski]

On 09/03/2021 14:42, Martin Kepplinger wrote:
> this reverts commit ce58459d8c7f4174e7b8a8ea903dd949631334a3 for imx8mq.
> 
> this is most likely not the real fix but works around the problem I have
> (with v5.12-rc2) I want to report:
> 
> [    0.766925] SoC revision 0x21
> [    0.770286] imx8_soc_info soc at 0: SoC revision via nvmem read failed: -517
> 
> This leads to the system not booting up.
> 
> This change makes use of the old way of reading soc_revision and thus
> works around the problem.
> 
> What could be missing for the nvmem way to work here? Should it work
> in any case? I assume so if you add the compatible to imx8mq.dtsi. But
> if it would work, why keep the ocotp reads?

Hi,

Thanks for the report. 517 is deferred probe, so this could mean that
efuse/ocotp did not come up yet. However soc_id driver should handle it
and re-try after some try, shouldn't it? Unless there is a bug inside
(your change basically disables soc_id driver).

Best regards,
Krzysztof