lkml.org 
[lkml]   [2016]   [Mar]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH v4 4/7] mtd: nand: omap2: Support parsing dma channel information from DT
    Date
    Switch from dma_request_channel to allow passing dma channel
    information from DT rather than hardcoding a value.

    Also provide a handle to the GPMC's dev so it can be used to parse the DMA
    channel information within the GPMC's DT node.

    Signed-off-by: Franklin S Cooper Jr <fcooper@ti.com>
    ---
    Version 4 changes:
    Pass parent instead of new variable from the platform data

    drivers/mtd/nand/omap2.c | 4 +++-
    1 file changed, 3 insertions(+), 1 deletion(-)

    diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c
    index c553f78..95bc636 100644
    --- a/drivers/mtd/nand/omap2.c
    +++ b/drivers/mtd/nand/omap2.c
    @@ -1731,7 +1731,9 @@ static int omap_nand_probe(struct platform_device *pdev)
    dma_cap_zero(mask);
    dma_cap_set(DMA_SLAVE, mask);
    sig = OMAP24XX_DMA_GPMC;
    - info->dma = dma_request_channel(mask, omap_dma_filter_fn, &sig);
    + info->dma = dma_request_slave_channel_compat(mask,
    + omap_dma_filter_fn, &sig, pdev->dev.parent, "rxtx");
    +
    if (!info->dma) {
    dev_err(&pdev->dev, "DMA engine request failed\n");
    err = -ENXIO;
    --
    2.7.0
    \
     
     \ /
      Last update: 2016-03-11 01:41    [W:2.725 / U:0.044 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site