[alsa-devel] [PATCH] dmaengine: imx-sdma: advertise all supported slave bus widths

[Lucas Stach]

The commit [1] which changed imx-pcm-dma to derive the pcm_config from the
attached dmaengine introduced a regression on the supported sample formats,
as imx-sdma doesn't properly advertise all the supported slave bus widths.

Fix this to restore full functionality of the imx sound subsystem.

[1] 70d435ba1cd6 ("ASoC: imx-pcm-dma: simplify pcm_config")
Signed-off-by: Lucas Stach <l.stach at pengutronix.de>
---
 drivers/dma/imx-sdma.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c
index a67ec1bdc4e0..e374183f19d0 100644
--- a/drivers/dma/imx-sdma.c
+++ b/drivers/dma/imx-sdma.c
@@ -1851,8 +1851,12 @@ static int sdma_probe(struct platform_device *pdev)
 	sdma->dma_device.device_prep_dma_cyclic = sdma_prep_dma_cyclic;
 	sdma->dma_device.device_config = sdma_config;
 	sdma->dma_device.device_terminate_all = sdma_disable_channel_with_delay;
-	sdma->dma_device.src_addr_widths = BIT(DMA_SLAVE_BUSWIDTH_4_BYTES);
-	sdma->dma_device.dst_addr_widths = BIT(DMA_SLAVE_BUSWIDTH_4_BYTES);
+	sdma->dma_device.src_addr_widths = BIT(DMA_SLAVE_BUSWIDTH_4_BYTES) |
+					   BIT(DMA_SLAVE_BUSWIDTH_2_BYTES) |
+					   BIT(DMA_SLAVE_BUSWIDTH_1_BYTE);
+	sdma->dma_device.dst_addr_widths = BIT(DMA_SLAVE_BUSWIDTH_4_BYTES) |
+					   BIT(DMA_SLAVE_BUSWIDTH_2_BYTES) |
+					   BIT(DMA_SLAVE_BUSWIDTH_1_BYTE);
 	sdma->dma_device.directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV);
 	sdma->dma_device.residue_granularity = DMA_RESIDUE_GRANULARITY_SEGMENT;
 	sdma->dma_device.device_issue_pending = sdma_issue_pending;
-- 
2.11.0