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authorStanimir Varbanov <stanimir.varbanov@linaro.org>2015-03-05 13:03:04 (GMT)
committerVinod Koul <vinod.koul@intel.com>2015-03-05 16:14:38 (GMT)
commitfe4be5e9f99d433fe6420a12f4e94f05f2ae39a6 (patch)
tree2cb50370c9d874e2984e20973d68bc5c8ffdff74
parent9ca1c5f2ab9d5bc8955a2cc7ad36ba7074dd7c60 (diff)
downloadlinux-fe4be5e9f99d433fe6420a12f4e94f05f2ae39a6.tar.xz
dmaengine: bam-dma: fix a warning about missing capabilities
Avoid the warning below triggered during dmaengine async device registration. WARNING: CPU: 1 PID: 1 at linux/drivers/dma/dmaengine.c:863 dma_async_device_register+0x2a8/0x4b8() this driver doesn't support generic slave capabilities reporting To do that fill mandatory .directions bit mask, .src/dst_addr_widths and .residue_granularity dma_device fields with appropriate values. Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
-rw-r--r--drivers/dma/qcom_bam_dma.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/dma/qcom_bam_dma.c b/drivers/dma/qcom_bam_dma.c
index d7a33b3..d9f1a18 100644
--- a/drivers/dma/qcom_bam_dma.c
+++ b/drivers/dma/qcom_bam_dma.c
@@ -1143,6 +1143,10 @@ 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.residue_granularity = DMA_RESIDUE_GRANULARITY_SEGMENT;
+ bdev->common.src_addr_widths = DMA_SLAVE_BUSWIDTH_4_BYTES;
+ bdev->common.dst_addr_widths = DMA_SLAVE_BUSWIDTH_4_BYTES;
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;