Messages in this thread | | | Subject | Re: dmatest to use synopsys dma driver (dw_dmac.c) | From | Andy Shevchenko <> | Date | Tue, 02 Oct 2012 13:11:33 +0300 |
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On Thu, 2012-06-07 at 10:03 +0000, Satendra Pratap wrote: > We have Synopsys DMAC controller on our SoC and are trying to use open source > dw_dmac.c driver. We are using linux-3.2.2 kernel but it seems dw_dmac.c does > not have any support for it. Later I checked out that its been added in later > versions of dw_dmac.c so I backported dw_dmac from linux-3.4 to linux-3.2.2. > I have tried using dmatest to validate dw_dmac.c driver. I just compile kernel > with dw_dmac.c and with dmatest support then I test it. (I think I need not to > modify dmatest in order wo work with dw_dmac). > While testing I get crashes with the ported driver (from linux-3.4 to linux- > 3.2.2) but with the original driver in linux-3.2.2 I get no crashes but "test > timed out"
> Any help is greatly appreciated. It would be of very much help is some one could > (who has used dw_dmac.c) could share their code to use dw_dmac.c.
I published all my patches already here in the mailing list. Part of them is under review, but another part has been pushed to the linux-next.
I highly encourage you to try most recent version from the linux-next.
-- Andy Shevchenko <andriy.shevchenko@linux.intel.com> Intel Finland Oy
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