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    SubjectRe: dmatest to use synopsys dma driver (dw_dmac.c)
    On Mon, 2012-06-11 at 17:06 +0530, wrote: 
    > >> 1. dmatest with ported dw_dmac.c (from linux-3.4 to linux-3.2.2):
    > >>dmatest started automatically and tries test with all registered 8
    > >>channels of our dma engine but we get crashes with every channel as
    > shown
    > >>below:
    > These crashes are solved but I get same " test timed out" for this ported
    > driver too
    > as I was getting with original one. After debugging, it seems that after
    > dma transfer is complete no interrupt is
    > generated.......I have verified irq number etc , handler registered
    > properly but I don get any interrupts..
    > I am looking into the code to see whether there is any polling mechanism
    > is used in the driver ?

    I have few patches to fix this driver for our hardware.
    The dw_dmac has few issues, one of them is impossibility to configure
    some important parts of the IP-block like block_ts or tr_width.

    So, I could send patchset which probably helps you a bit.

    Andy Shevchenko <>
    Intel Finland Oy

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      Last update: 2012-06-11 17:22    [W:0.022 / U:5.416 seconds]
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