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

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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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