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 4.4-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-4.4 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 10:56:34 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-4.4/dmaengine-zx-set-dma_cyclic-cap_mask-bit.patch