This is a note to let you know that I've just added the patch titled dmaengine: zx: set DMA_CYCLIC cap_mask bit to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: dmaengine-zx-set-dma_cyclic-cap_mask-bit.patch and it can be found in the queue-4.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From foo@baz Tue Nov 28 10:49:28 CET 2017 From: Shawn Guo <shawn.guo@xxxxxxxxxx> Date: Thu, 15 Dec 2016 22:03:36 +0800 Subject: dmaengine: zx: set DMA_CYCLIC cap_mask bit From: Shawn Guo <shawn.guo@xxxxxxxxxx> [ Upstream commit fc318d64f3d91e15babac00e08354b1beb650b57 ] The zx_dma driver supports cyclic transfer mode. Let's set DMA_CYCLIC cap_mask bit to make that clear, and avoid unnecessary failure when clients request channel via dma_request_chan_by_mask() with DMA_CYCLIC bit set in mask. Signed-off-by: Shawn Guo <shawn.guo@xxxxxxxxxx> Reviewed-by: Jun Nie <jun.nie@xxxxxxxxxx> Signed-off-by: Vinod Koul <vinod.koul@xxxxxxxxx> Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/dma/zx296702_dma.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/dma/zx296702_dma.c +++ b/drivers/dma/zx296702_dma.c @@ -813,6 +813,7 @@ static int zx_dma_probe(struct platform_ INIT_LIST_HEAD(&d->slave.channels); dma_cap_set(DMA_SLAVE, d->slave.cap_mask); dma_cap_set(DMA_MEMCPY, d->slave.cap_mask); + dma_cap_set(DMA_CYCLIC, d->slave.cap_mask); dma_cap_set(DMA_PRIVATE, d->slave.cap_mask); d->slave.dev = &op->dev; d->slave.device_free_chan_resources = zx_dma_free_chan_resources; Patches currently in stable-queue which might be from shawn.guo@xxxxxxxxxx are queue-4.9/dmaengine-zx-set-dma_cyclic-cap_mask-bit.patch