Re: [PATCH v2 5/5] spi/ep93xx: add DMA support

From: Grant Likely
Date: Tue Jun 07 2011 - 14:45:50 EST


On Tue, Jun 7, 2011 at 11:14 AM, Mika Westerberg <mika.westerberg@xxxxxx> wrote:
> On Fri, Jun 03, 2011 at 02:44:00PM -0600, Grant Likely wrote:
>> On Sun, May 29, 2011 at 01:10:06PM +0300, Mika Westerberg wrote:
>> > This patch adds DMA support for the EP93xx SPI driver. By default the DMA is
>> > not enabled but it can be enabled by setting ep93xx_spi_info.use_dma to true
>> > in board configuration file.
>> >
>> > Note that the SPI driver still uses PIO for small transfers (<= 8 bytes) for
>> > performance reasons.
>> >
>> > Signed-off-by: Mika Westerberg <mika.westerberg@xxxxxx>
>> > Acked-by: H Hartley Sweeten <hsweeten@xxxxxxxxxxxxxxxxxxx>
>> > Cc: Grant Likely <grant.likely@xxxxxxxxxxxx>
>>
>> Acked-by: Grant Likely <grant.likely@xxxxxxxxxxxx>
>>
>> Since this depends on the DMA patches, it can go in via the same tree.
>
> I just realized that once the SPI driver renaming patch (spi: reorganize
> drivers) enters linux-next, this patch (which sits on Vinod's tree) will cause
> a merge conflict. Any ideas how to avoid it beforehand?

Yes, put the whole series into a separate branch all by itself. Merge
that branch into Vinod's tree and I'll also merge it into spi/next,
and I'll fix up the merge conflict when I do.

g.

--
Grant Likely, B.Sc., P.Eng.
Secret Lab Technologies Ltd.
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