diff options
| author | Nicolas Ferre <nicolas.ferre@atmel.com> | 2012-05-10 12:17:41 +0200 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@linux.intel.com> | 2012-05-15 08:47:18 +0530 |
| commit | 1dd1ea8eb46a71201943148cc0ed3182cd04e288 (patch) | |
| tree | 0d4c7f05f751d906aea6b0270956453bcd6520e5 /drivers/dma/at_hdmac.c | |
| parent | b409ebfb14a71b64e11b156dc82ede698480397e (diff) | |
| download | linux-1dd1ea8eb46a71201943148cc0ed3182cd04e288.tar.gz linux-1dd1ea8eb46a71201943148cc0ed3182cd04e288.tar.bz2 linux-1dd1ea8eb46a71201943148cc0ed3182cd04e288.zip | |
dmaengine: at_hdmac: take maxburst from slave configuration
The maxburst/chunk size was taken from the private slave DMA data structure.
Use the common API provided by DMA_SLAVE_CONFIG to setup src/dst maxburst
values.
The ctrla field is not needed anymore in the slave private structure nor the
header constants that were located in an architecture specific directory.
The at91sam9g45_devices.c file that was using this platform data is also
modified to remove this now useless data.
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
Diffstat (limited to 'drivers/dma/at_hdmac.c')
| -rw-r--r-- | drivers/dma/at_hdmac.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c index c057309c8ae5..7292aa87b2dd 100644 --- a/drivers/dma/at_hdmac.c +++ b/drivers/dma/at_hdmac.c @@ -666,7 +666,8 @@ atc_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl, return NULL; } - ctrla = atslave->ctrla; + ctrla = ATC_SCSIZE(sconfig->src_maxburst) + | ATC_DCSIZE(sconfig->dst_maxburst); ctrlb = ATC_IEN; switch (direction) { @@ -794,12 +795,12 @@ atc_dma_cyclic_fill_desc(struct dma_chan *chan, struct at_desc *desc, enum dma_transfer_direction direction) { struct at_dma_chan *atchan = to_at_dma_chan(chan); - struct at_dma_slave *atslave = chan->private; struct dma_slave_config *sconfig = &atchan->dma_sconfig; u32 ctrla; /* prepare common CRTLA value */ - ctrla = atslave->ctrla + ctrla = ATC_SCSIZE(sconfig->src_maxburst) + | ATC_DCSIZE(sconfig->dst_maxburst) | ATC_DST_WIDTH(reg_width) | ATC_SRC_WIDTH(reg_width) | period_len >> reg_width; |