On Thu, Mar 26, 2009 at 7:12 AM, Atsushi Nemoto <anemo@xxxxxxxxxxxxx> wrote: > On Sat, 21 Mar 2009 21:29:20 +0900 (JST), Atsushi Nemoto <anemo@xxxxxxxxxxxxx> wrote: > Unfortunately, not so simple. If I created a dma_device for each > channel, all chan->chan_id will be 0 and all chan->device->dev points > same platform device. This makes client driver hard to select the > particular channel. Making a platform device for each channel will > solve this, but it looks wrong way to go for me. Why? mv_xor, iop-adma, and ioat each have a platform or pci device per channel so you would be in good company.