| Message ID | 20230207045745.1029959-1-kai.heng.feng@canonical.com (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | 00d6a25f5a30d3af9f1351ff274ce866f72dae2d |
| Headers | show |
| Series | dmaengine: imx-sdma: Set DMA channel to be private | expand |
On 07-02-23, 12:57, Kai-Heng Feng wrote: > If async-tx is loaded before device drivers that requires imx-sdma, the > dmaengine_get() routine from async-tx grabs all non-private channels, > so devices that require DMA fail to work. > > So mark imx-sdma with DMA_PRIVATE to avoid such situation. Applied, thanks
diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c index b926abe4fa43a..b86cdab5c2683 100644 --- a/drivers/dma/imx-sdma.c +++ b/drivers/dma/imx-sdma.c @@ -2234,6 +2234,7 @@ static int sdma_probe(struct platform_device *pdev) dma_cap_set(DMA_SLAVE, sdma->dma_device.cap_mask); dma_cap_set(DMA_CYCLIC, sdma->dma_device.cap_mask); dma_cap_set(DMA_MEMCPY, sdma->dma_device.cap_mask); + dma_cap_set(DMA_PRIVATE, sdma->dma_device.cap_mask); INIT_LIST_HEAD(&sdma->dma_device.channels); /* Initialize channel parameters */
If async-tx is loaded before device drivers that requires imx-sdma, the dmaengine_get() routine from async-tx grabs all non-private channels, so devices that require DMA fail to work. So mark imx-sdma with DMA_PRIVATE to avoid such situation. Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com> --- drivers/dma/imx-sdma.c | 1 + 1 file changed, 1 insertion(+)