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Groups > linux.kernel > #1359247

[PATCH 4/8] dmaengine: bcm2835: move cyclic member from bcm2835_chan into bcm2835_desc

From Eric Anholt <eric@anholt.net>
Newsgroups linux.kernel
Subject [PATCH 4/8] dmaengine: bcm2835: move cyclic member from bcm2835_chan into bcm2835_desc
Date 2016-03-16 20:30 +0100
Message-ID <rdpiP-4Or-31@gated-at.bofh.it> (permalink)
References <rdpiO-4Or-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

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From: Martin Sperl <kernel@martin.sperl.org>

In preparation to consolidating code we move the cyclic member
into the bcm_2835_desc structure.

Signed-off-by: Martin Sperl <kernel@martin.sperl.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Eric Anholt <eric@anholt.net>
---
 drivers/dma/bcm2835-dma.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/dma/bcm2835-dma.c b/drivers/dma/bcm2835-dma.c
index a1d851a..b3bc382 100644
--- a/drivers/dma/bcm2835-dma.c
+++ b/drivers/dma/bcm2835-dma.c
@@ -73,7 +73,6 @@ struct bcm2835_chan {
 	struct list_head node;
 
 	struct dma_slave_config	cfg;
-	bool cyclic;
 	unsigned int dreq;
 
 	int ch;
@@ -93,6 +92,8 @@ struct bcm2835_desc {
 
 	unsigned int frames;
 	size_t size;
+
+	bool cyclic;
 };
 
 #define BCM2835_DMA_CS		0x00
@@ -377,8 +378,6 @@ static void bcm2835_dma_issue_pending(struct dma_chan *chan)
 	struct bcm2835_chan *c = to_bcm2835_dma_chan(chan);
 	unsigned long flags;
 
-	c->cyclic = true; /* Nothing else is implemented */
-
 	spin_lock_irqsave(&c->vc.lock, flags);
 	if (vchan_issue_pending(&c->vc) && !c->desc)
 		bcm2835_dma_start_desc(c);
@@ -432,6 +431,7 @@ static struct dma_async_tx_descriptor *bcm2835_dma_prep_dma_cyclic(
 	d->c = c;
 	d->dir = direction;
 	d->frames = buf_len / period_len;
+	d->cyclic = true;
 
 	d->cb_list = kcalloc(d->frames, sizeof(*d->cb_list), GFP_KERNEL);
 	if (!d->cb_list) {
-- 
2.7.0

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Thread

[PATCH 0/8 v4] bcm2835 DMA slave support Eric Anholt <eric@anholt.net> - 2016-03-16 20:30 +0100
  [PATCH 5/8] dmaengine: bcm2835: move controlblock chain generation into separate method Eric Anholt <eric@anholt.net> - 2016-03-16 20:30 +0100
  [PATCH 6/8] dmaengine: bcm2835: limit max length based on channel type Eric Anholt <eric@anholt.net> - 2016-03-16 20:30 +0100
  [PATCH 8/8] dmaengine: bcm2835: add dma_memcopy support to bcm2835-dma Eric Anholt <eric@anholt.net> - 2016-03-16 20:30 +0100
  [PATCH 1/8] dmaengine: bcm2835: set residue_granularity field Eric Anholt <eric@anholt.net> - 2016-03-16 20:30 +0100
  [PATCH 7/8] dmaengine: bcm2835: add slave_sg support to bcm2835-dma Eric Anholt <eric@anholt.net> - 2016-03-16 20:30 +0100
  [PATCH 4/8] dmaengine: bcm2835: move cyclic member from bcm2835_chan into bcm2835_desc Eric Anholt <eric@anholt.net> - 2016-03-16 20:30 +0100
  [PATCH 2/8] dmaengine: bcm2835: remove unnecessary masking of dma channels Eric Anholt <eric@anholt.net> - 2016-03-16 20:30 +0100
  [PATCH 3/8] dmaengine: bcm2835: add additional defines for DMA-registers Eric Anholt <eric@anholt.net> - 2016-03-16 20:30 +0100
  Re: [PATCH 0/8 v4] bcm2835 DMA slave support Martin Sperl <martin@sperl.org> - 2016-03-17 11:30 +0100
  Re: [PATCH 0/8 v4] bcm2835 DMA slave support Martin Sperl <kernel@martin.sperl.org> - 2016-03-17 14:20 +0100

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