dmaengine: rcar-hpbdma: fixup WARNING of slave caps retrieval

ecc19d17868be9c9f8f00ed928791533c420f3e0
(dmaengine: Add a warning for drivers not using the generic slave
caps retrieval) added WARN() for DMA_SLAVE.
Kernel will shows WARNING without this patch.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

diff --git a/drivers/dma/sh/rcar-hpbdma.c b/drivers/dma/sh/rcar-hpbdma.c
index 20a6f6f2a01868da26f6aeebbc95ddff0c895ae3..6fef1b95c89520a558c45a5f1371e2f18b31d018 100644 (file)
--- a/drivers/dma/sh/rcar-hpbdma.c
+++ b/drivers/dma/sh/rcar-hpbdma.c
@@ -534,6 +534,8 @@ static int hpb_dmae_chan_probe(struct hpb_dmae_device *hpbdev, int id)
 
 static int hpb_dmae_probe(struct platform_device *pdev)
 {
+       const enum dma_slave_buswidth widths = DMA_SLAVE_BUSWIDTH_1_BYTE |
+               DMA_SLAVE_BUSWIDTH_2_BYTES | DMA_SLAVE_BUSWIDTH_4_BYTES;
        struct hpb_dmae_pdata *pdata = pdev->dev.platform_data;
        struct hpb_dmae_device *hpbdev;
        struct dma_device *dma_dev;
@@ -595,6 +597,10 @@ static int hpb_dmae_probe(struct platform_device *pdev)
 
        dma_cap_set(DMA_MEMCPY, dma_dev->cap_mask);
        dma_cap_set(DMA_SLAVE, dma_dev->cap_mask);
+       dma_dev->src_addr_widths = widths;
+       dma_dev->dst_addr_widths = widths;
+       dma_dev->directions = BIT(DMA_MEM_TO_DEV) | BIT(DMA_DEV_TO_MEM);
+       dma_dev->residue_granularity = DMA_RESIDUE_GRANULARITY_BURST;
 
        hpbdev->shdma_dev.ops = &hpb_dmae_ops;
        hpbdev->shdma_dev.desc_size = sizeof(struct hpb_desc);