[PATCH v2 2/4] ARM: EXYNOS: support burst mode for for dev-to-mem and mem-to-dev transmit

[Boojin Kim]

This patch adds to support burst mode for for dev-to-mem and dev-to-mem transmit

Signed-off-by: Boojin Kim <boojin....@samsung.com>
---
 arch/arm/plat-samsung/dma-ops.c              |    4 ++--
 arch/arm/plat-samsung/include/plat/dma-ops.h |    1 +
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/arm/plat-samsung/dma-ops.c b/arch/arm/plat-samsung/dma-ops.c
index 71d58dd..6c90c16 100644
--- a/arch/arm/plat-samsung/dma-ops.c
+++ b/arch/arm/plat-samsung/dma-ops.c
@@ -60,14 +60,14 @@ static int samsung_dmadev_config(unsigned ch,
                slave_config.direction = param->direction;
                slave_config.src_addr = param->fifo;
                slave_config.src_addr_width = param->width;
-               slave_config.src_maxburst = 1;
+               slave_config.src_maxburst = param->maxburst;
                dmaengine_slave_config(chan, &slave_config);
        } else if (param->direction == DMA_MEM_TO_DEV) {
                memset(&slave_config, 0, sizeof(struct dma_slave_config));
                slave_config.direction = param->direction;
                slave_config.dst_addr = param->fifo;
                slave_config.dst_addr_width = param->width;
-               slave_config.dst_maxburst = 1;
+               slave_config.dst_maxburst = param->maxburst;
                dmaengine_slave_config(chan, &slave_config);
        } else {
                pr_warn("unsupported direction\n");
diff --git a/arch/arm/plat-samsung/include/plat/dma-ops.h 
b/arch/arm/plat-samsung/include/plat/dma-ops.h
index 1141782..383bd6d 100644
--- a/arch/arm/plat-samsung/include/plat/dma-ops.h
+++ b/arch/arm/plat-samsung/include/plat/dma-ops.h
@@ -35,6 +35,7 @@ struct samsung_dma_prep {
 struct samsung_dma_config {
        enum dma_transfer_direction direction;
        enum dma_slave_buswidth width;
+       u32 maxburst;
        dma_addr_t fifo;
 };

--
1.7.5.4



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