Re: [PATCH v3 02/16] mfd: mfd-core: Don't overwrite the dma_mask of the child device

[Michael Walle]

Am 2020-04-28 17:25, schrieb Mark Brown:
> On Tue, Apr 28, 2020 at 03:49:49PM +0100, Robin Murphy wrote:
>
> > For better or worse, the platform bus is the dumping ground for random 
> > crap,
> > so we just have to deal with all the abstraction breakage that leaks 
> > out of
> > that.
>
> The reason we're using the platform bus for this is that historically
> people were creating buses which were essentially carbon copies of the
> platform bus with the name changed and it was felt that rather than
> duplicate code it was better to just use platform devices with no MMIO
> ranges defined.  If there's some assumptions about DMA for platform
> devices floating about somewhere it might be reasonable to revisit this
> and create a non-DMA variant of platform devices since there is a
> meaningful difference.

Was there any conclusion? Should I keep or drop this patch in the next 
version
of this series?

--
-michael