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    SubjectRe: [PATCH 10/18] spi: s3c64xx: Do not require legacy DMA API in case of S3C64XX
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    On Tuesday 13 of August 2013 00:36:41 Mark Brown wrote:
    > On Sun, Aug 11, 2013 at 07:59:22PM +0200, Tomasz Figa wrote:
    > > With support for amba-pl08x driver, on S3C64xx the generic DMA engine
    > > API can be used instead of the private s3c-dma interface.
    >
    > I'm still getting issues for SPI with this:
    >
    > [ 50.952845] s3c64xx-spi s3c6410-spi.0: Failed to get RX DMA channel
    > [ 50.953520] spi_master spi0: failed to prepare transfer hardware
    >
    > when I test (with -next with this series applied on top), this is from
    > the first transfer that tries to DMA - there's actually no RX data. No
    > errors are reported by the DMA controller itself. I'm also getting
    > crashes setting up the audio DMA while derferencecing the channel.
    >
    > This is without DT - are there any hookups missing because of that?

    Hmm, strange.

    I've been testing this without any significant patches, like PWM, CCF or
    DT support, just everything from the branch I pointed to and some board-
    specific patches to help in debugging.

    Anyway, this is the exact branch I've been using:

    git://github.com/tom3q/linux.git v3.12-pl080-devel

    Best regards,
    Tomasz



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