On 01.08.2019 16:31, Oleksandr wrote:
>   This is needed for the upcoming V2 of the IPMMU driver (ARM) [1] which may 
> request
>   deferred probing (returns -EPROBE_DEFER) depending on what device will be 
> probed the first
>   (Root device must be registered before Cache devices. If not the case,
>   driver will deny further Cache device probes until Root device is 
> registered).
> 
> As we can't guarantee a fixed pre-defined order for the device nodes in DT, 
> we need to be ready for the situation where devices being probed
> in "any" order. So, framework (drivers/passthrough/arm/iommu.c) will be 
> modified a bit to be able to handle -EPROBE_DEFER returning by driver.

I'm sure this can be had without introducing a new error code.

Jan
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