dmaengine: mmp_tdma: Fill in slave capabilities

This makes dma_get_slave_caps() work with the device so that it could
actually be used with soc-generic-dmaengine-pcm.

Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Link: https://lore.kernel.org/r/20200419164912.670973-7-lkundrak@v3.sk
Signed-off-by: Vinod Koul <vkoul@kernel.org>

diff --git a/drivers/dma/mmp_tdma.c b/drivers/dma/mmp_tdma.c
index 1597f6ebf3357908243a79c4366a006b11534279..2e318558c644667008ef16e355510b29d3d26c65 100644 (file)
--- a/drivers/dma/mmp_tdma.c
+++ b/drivers/dma/mmp_tdma.c
@@ -703,6 +703,17 @@ static int mmp_tdma_probe(struct platform_device *pdev)
        tdev->device.device_terminate_all = mmp_tdma_terminate_all;
        tdev->device.copy_align = DMAENGINE_ALIGN_8_BYTES;
 
+       tdev->device.directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV);
+       if (type == MMP_AUD_TDMA) {
+               tdev->device.max_burst = SZ_128;
+               tdev->device.src_addr_widths = BIT(DMA_SLAVE_BUSWIDTH_4_BYTES);
+               tdev->device.dst_addr_widths = BIT(DMA_SLAVE_BUSWIDTH_4_BYTES);
+       } else if (type == PXA910_SQU) {
+               tdev->device.max_burst = SZ_32;
+       }
+       tdev->device.residue_granularity = DMA_RESIDUE_GRANULARITY_BURST;
+       tdev->device.descriptor_reuse = true;
+
        dma_set_mask(&pdev->dev, DMA_BIT_MASK(64));
        platform_set_drvdata(pdev, tdev);