? ????????? ?? 18 ??????? 2010 18:04:25 ????? Vasily Khoruzhick ???????:

Some integrated DMA-capable hardware doesn't like autoreload
feature of s3c24xx DMA-engine, that's why s3cmci driver
didn't work with DMA transfers enabled.

I rewrote DMA driver not to use autoreload feature and removed
all pre-loading features. Buffer re-load is fast enought to perform
it in IRQ handler, and anyway I don't see any reason to waste CPU
cycles on waiting for buffer load. Driver is much simplier now,
it was tested with s3cmci and s3c24xx-i2s drivers on s3c2442 and
s3c2410 SoCs and works just nice.

 
Patch has problem with suspend/resume (chan->dcon is clobbered by
dma_sel->select())

Will resend fixed version soon.

Regards
Vasily
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