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>
diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c
index c057309..7292aa8 100644
--- a/drivers/dma/at_hdmac.c
+++ b/drivers/dma/at_hdmac.c
@@ -666,7 +666,8 @@
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 @@
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;