[PATCH 5/7] memory: renesas-rpc-if: Move resource acquisition to .probe()

[Krzysztof Kozlowski]

On 27/06/2022 17:31, Geert Uytterhoeven wrote:
> While the acquired resources are tied to the lifetime of the RPC-IF core
> device (through the use of managed resource functions), the actual
> resource acquisition is triggered from the HyperBus and SPI child
> drivers.  Due to this mismatch, unbinding and rebinding the child
> drivers manually fails with -EBUSY:
> 
>     # echo rpc-if-hyperflash > /sys/bus/platform/drivers/rpc-if-hyperflash/unbind
>     # echo rpc-if-hyperflash > /sys/bus/platform/drivers/rpc-if-hyperflash/bind
>     rpc-if ee200000.spi: can't request region for resource [mem 0xee200000-0xee2001ff]
>     rpc-if-hyperflash: probe of rpc-if-hyperflash failed with error -16
> 
> Fix this by moving all resource acquisition to the core driver's probe
> routine.
> 
> Signed-off-by: Geert Uytterhoeven <geert+renesas at glider.be>

This looks like a fix, so how about putting it as first in the series,
so backporting is easy/automatic? Plus a fixes tag?

Best regards,
Krzysztof