[PATCH 1/1] ARM: OMAP2+: omap2plus_defconfig: enable OMAP DMA engine support

* Javier Martinez Canillas [off-list ref] [120716 16:33]:

On Mon, Jul 16, 2012 at 7:12 PM, Kevin Hilman [off-list ref] wrote:

quoted

Javier Martinez Canillas [off-list ref] writes:

quoted

commit 13f30fc893e4610f67dd7a8b0b67aec02eac1775
Author: Russell King [off-list ref]
Date:   Sat Apr 21 22:41:10 2012 +0100

    mmc: omap: remove private DMA API implementation

removed the private DMA API implementation from the OMAP mmc host to
make it use exclusively the DMA engine API.

Unfortunately the omap2plus_defconfig doesn't enable this feature
leading to the following error on an IGEPv2 Rev.C (and probably on most
boards with MMC support):

Personally, I'd rather see this fixed by having the drivers that depend
on DMA engine 'select DMADEVICES'.  That way, any defconfig will work
correctly instead of just omap2plus_defconfig.

Kevin

Hi Kevin,

Thanks a lot for your feedback. I'll do what you suggest and send a v2
of the patch.

I'd rather see the drivers fixed to work with and without DMA as the
channels can run out. Also forcing the select is not good for distro kernels.

I'll apply this fix into l-o master branch while we're discussing the
issue.

Regards,

Tony