Re: [PATCH] spi: s3c64xx: Don't request/release DMA channels for each SPI transfer

[Marek Szyprowski <m.szyprowski-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>]

Hi Mark,


On 2016-12-31 19:26, Mark Brown wrote:
> On Thu, Dec 29, 2016 at 01:19:31PM +0100, Marek Szyprowski wrote:
>> Requesting a DMA channel might be a time consuming operation, so there is
>> no need to acquire and release DMA channel for each SPI transfer.
> This doesn't apply against current code, please check and resend.

It fails to apply because of missing commit 
6f8dc9d481759b428a8cb6a17b83821451415ba9
("spi: s3c64xx: Do not use platform_data for DMA parameters") in your 
spi-next,
which is already in v4.10-rc1 and came through dma-engine tree. My patch 
depends on
it and removing this dependency will make a merge conflict later while 
merging to
Linus if I rebase directly onto your spi-next.

IMHO it would be better either to merge v4.10-rc1 to your spi-next 
branch or at
least apply the mentioned patch to your branch before applying this one.

Best regards
-- 
Marek Szyprowski, PhD
Samsung R&D Institute Poland

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