From: Peter Ujfalusi <peter.ujfalusi@ti.com>
To: Mark Brown <broonie@opensource.wolfsonmicro.com>,
Liam Girdwood <lrg@ti.com>, Tony Lindgren <tony@atomide.com>,
Russell King <rmk+kernel@arm.linux.org.uk>,
Vinod Koul <vinod.koul@intel.com>, Dan Williams <djbw@fb.com>,
Jarkko Nikula <jarkko.nikula@bitmer.com>
Cc: alsa-devel@alsa-project.org, linux-omap@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org,
Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>,
Ricardo Neri <ricardo.neri@ti.com>
Subject: [PATCH 01/11] dmaengine: omap: Support for element mode in cyclic DMA
Date: Wed, 12 Sep 2012 14:46:57 +0300 [thread overview]
Message-ID: <1347450427-27627-2-git-send-email-peter.ujfalusi@ti.com> (raw)
In-Reply-To: <1347450427-27627-1-git-send-email-peter.ujfalusi@ti.com>
When src_maxburst/dst_maxburst is set to 0 by the users of cyclic DMA
(mostly audio) indicates that we should configure the omap DMA to element
sync mode instead of packet mode.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
---
drivers/dma/omap-dma.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/dma/omap-dma.c b/drivers/dma/omap-dma.c
index ae05618..b77a40d 100644
--- a/drivers/dma/omap-dma.c
+++ b/drivers/dma/omap-dma.c
@@ -413,7 +413,10 @@ static struct dma_async_tx_descriptor *omap_dma_prep_dma_cyclic(
d->dev_addr = dev_addr;
d->fi = burst;
d->es = es;
- d->sync_mode = OMAP_DMA_SYNC_PACKET;
+ if (burst)
+ d->sync_mode = OMAP_DMA_SYNC_PACKET;
+ else
+ d->sync_mode = OMAP_DMA_SYNC_ELEMENT;
d->sync_type = sync_type;
d->periph_port = OMAP_DMA_PORT_MPUI;
d->sg[0].addr = buf_addr;
--
1.7.12
next prev parent reply other threads:[~2012-09-12 11:46 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-12 11:46 [PATCH 00/11] ASoC: OMAP: Convert to use dmaengine Peter Ujfalusi
2012-09-12 11:46 ` Peter Ujfalusi [this message]
2012-09-12 11:46 ` [PATCH 02/11] ASoC: omap-mcbsp: Use sDMA packet mode instead of frame mode Peter Ujfalusi
2012-09-12 11:46 ` [PATCH 03/11] ASoC: omap-pcm: Select sDMA synchronization based on packet_size Peter Ujfalusi
2012-09-12 11:47 ` [PATCH 04/11] ASoC: OMAP: Remove sync_mode from omap_pcm_dma_data struct Peter Ujfalusi
2012-09-12 11:47 ` [PATCH 05/11] ASoC: omap-pcm: Prepare to configure the DMA data_type based on stream properties Peter Ujfalusi
2012-09-12 11:47 ` [PATCH 06/11] ARM: OMAP4: hwmod_data: Add resource names to McPDM memory ranges Peter Ujfalusi
2012-09-12 11:47 ` [PATCH 07/11] ASoC: omap-mcpdm: Use platform_get_resource_* to get resources Peter Ujfalusi
2012-09-12 11:47 ` [PATCH 08/11] ASoC: OMAP: mcbsp, mcpdm, dmic: Let omap-pcm to pick the dma_type Peter Ujfalusi
2012-09-12 11:47 ` [PATCH 09/11] ASoC: omap-pcm, omap-hdmi: Change the use of omap_pcm_dma_data->data_type Peter Ujfalusi
2012-09-12 11:47 ` [PATCH 10/11] ASoC: OMAP: mcbsp, mcpdm, dmic, hdmi: Set dma_data at startup time Peter Ujfalusi
2012-09-12 11:47 ` [PATCH 11/11] ASoC: omap-pcm: Convert to use dmaengine Peter Ujfalusi
2012-09-12 12:00 ` Russell King - ARM Linux
2012-09-12 12:53 ` Peter Ujfalusi
2012-09-12 14:35 ` Peter Ujfalusi
2012-09-12 14:05 ` [alsa-devel] " Takashi Iwai
2012-09-13 8:11 ` [PATCH 00/11] ASoC: OMAP: " Mark Brown
2012-09-13 9:20 ` Peter Ujfalusi
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