dmaengine: mmp_pdma: fix warning about slave caps

Fix the dmaengine complaint about missing slave caps :
 - declare the available bus widths
 - declare the available transfer types
 - declare the residue calculation type

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

diff --git a/drivers/dma/mmp_pdma.c b/drivers/dma/mmp_pdma.c
index abf1450..eb41004 100644 (file)
--- a/drivers/dma/mmp_pdma.c
+++ b/drivers/dma/mmp_pdma.c
@@ -1002,6 +1002,9 @@ static int mmp_pdma_probe(struct platform_device *op)
        struct resource *iores;
        int i, ret, irq = 0;
        int dma_channels = 0, irq_num = 0;
+       const enum dma_slave_buswidth widths =
+               DMA_SLAVE_BUSWIDTH_1_BYTE   | DMA_SLAVE_BUSWIDTH_2_BYTES |
+               DMA_SLAVE_BUSWIDTH_4_BYTES;
 
        pdev = devm_kzalloc(&op->dev, sizeof(*pdev), GFP_KERNEL);
        if (!pdev)
@@ -1069,6 +1072,10 @@ static int mmp_pdma_probe(struct platform_device *op)
        pdev->device.device_config = mmp_pdma_config;
        pdev->device.device_terminate_all = mmp_pdma_terminate_all;
        pdev->device.copy_align = PDMA_ALIGNMENT;
+       pdev->device.src_addr_widths = widths;
+       pdev->device.dst_addr_widths = widths;
+       pdev->device.directions = BIT(DMA_MEM_TO_DEV) | BIT(DMA_DEV_TO_MEM);
+       pdev->device.residue_granularity = DMA_RESIDUE_GRANULARITY_DESCRIPTOR;
 
        if (pdev->dev->coherent_dma_mask)
                dma_set_mask(pdev->dev, pdev->dev->coherent_dma_mask);