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>

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;