On Wed, Mar 04, 2015 at 09:32:13PM +0530, Vinod Koul wrote: > On Wed, Mar 04, 2015 at 05:25:10PM +0200, Stanimir Varbanov wrote: > > This will avoid warning during async device registration. > > > > Signed-off-by: Stanimir Varbanov <[email protected]> > > --- > > drivers/dma/qcom_bam_dma.c | 1 + > > 1 files changed, 1 insertions(+), 0 deletions(-) > > > > diff --git a/drivers/dma/qcom_bam_dma.c b/drivers/dma/qcom_bam_dma.c > > index c3113e3..cc9e5ee 100644 > > --- a/drivers/dma/qcom_bam_dma.c > > +++ b/drivers/dma/qcom_bam_dma.c > > @@ -1143,6 +1143,7 @@ static int bam_dma_probe(struct platform_device *pdev) > > dma_cap_set(DMA_SLAVE, bdev->common.cap_mask); > > > > /* initialize dmaengine apis */ > > + bdev->common.directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV); > > bdev->common.device_alloc_chan_resources = bam_alloc_chan; > > bdev->common.device_free_chan_resources = bam_free_chan; > > bdev->common.device_prep_slave_sg = bam_prep_slave_sg; > You need to fill other fields, src/dstn_addr_widths and > residue_granularity...
Add segment granularity for BAM, as we can read the current completed segment. bdev->common.residue_granularity = DMA_RESIDUE_GRANULARITY_SEGMENT; Use DMA_SLAVE_BUSWIDTH_4_BYTES for the src/dst addr width: bdev->common.src_addr_widths = DMA_SLAVE_BUSWIDTH_4_BYTES; bdev->common.dst_addr_widths = DMA_SLAVE_BUSWIDTH_4_BYTES; -- Qualcomm Innovation Center, Inc. The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
