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Patch "dmaengine: zx: set DMA_CYCLIC cap_mask bit" has been added to the 4.9-stable tree

PATCH [email protected] 1 participant 1 message Nov 28, 2017

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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 <[email protected]> know about it.

Quoted 1 line

From foo@baz Tue Nov 28 10:49:28 CET 2017

From: Shawn Guo <[email protected]>
Date: Thu, 15 Dec 2016 22:03:36 +0800
Subject: dmaengine: zx: set DMA_CYCLIC cap_mask bit

From: Shawn Guo <[email protected]>

[ 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.

---
 drivers/dma/zx296702_dma.c |    1 +
 1 file changed, 1 insertion(+)
drivers/dma/zx296702_dma.c +1 -0
@@ -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 [email protected] are

queue-4.9/dmaengine-zx-set-dma_cyclic-cap_mask-bit.patch