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Date:   Thu, 14 May 2020 22:45:53 +0200
From:   Michael Walle <michael@walle.cc>
To:     Mark Brown <broonie@kernel.org>
Cc:     Robin Murphy <robin.murphy@arm.com>,
        Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
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Subject: Re: [PATCH v3 02/16] mfd: mfd-core: Don't overwrite the dma_mask of
 the child device
In-Reply-To: <20200428152543.GI5677@sirena.org.uk>
References: <20200423174543.17161-1-michael@walle.cc>
 <20200423174543.17161-3-michael@walle.cc>
 <20200428124548.GS185537@smile.fi.intel.com>
 <3cd3705a-4f48-6a46-e869-3ee11dc17323@arm.com>
 <20200428142938.GX185537@smile.fi.intel.com>
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 <20200428152543.GI5677@sirena.org.uk>
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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