[PATCH 5/5] ARM: davinci: dm646x: Add dma_slave_map to edma

From: Peter Ujfalusi
Date: Tue Feb 02 2016 - 07:44:38 EST


Provide the dma_slave_map to edma which will allow us to move the drivers
to the new, simpler dmaengine API and we can remove the DMA resources also
for the devices.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@xxxxxx>

FIX: dm646x
---
arch/arm/mach-davinci/dm646x.c | 11 +++++++++++
1 file changed, 11 insertions(+)

diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c
index cf80786e2471..93395f28caaa 100644
--- a/arch/arm/mach-davinci/dm646x.c
+++ b/arch/arm/mach-davinci/dm646x.c
@@ -9,6 +9,7 @@
* or implied.
*/
#include <linux/dma-mapping.h>
+#include <linux/dmaengine.h>
#include <linux/init.h>
#include <linux/clk.h>
#include <linux/serial_8250.h>
@@ -540,9 +541,19 @@ static s8 dm646x_queue_priority_mapping[][2] = {
{-1, -1},
};

+static const struct dma_slave_map da646x_edma_map[] = {
+ { "davinci-mcasp.0", "tx", EDMA_FILTER_PARAM(0, 6) },
+ { "davinci-mcasp.0", "rx", EDMA_FILTER_PARAM(0, 9) },
+ { "davinci-mcasp.1", "tx", EDMA_FILTER_PARAM(0, 12) },
+ { "spi_davinci", "tx", EDMA_FILTER_PARAM(0, 16) },
+ { "spi_davinci", "rx", EDMA_FILTER_PARAM(0, 17) },
+};
+
static struct edma_soc_info dm646x_edma_pdata = {
.queue_priority_mapping = dm646x_queue_priority_mapping,
.default_queue = EVENTQ_1,
+ .slave_map = da646x_edma_map,
+ .slavecnt = ARRAY_SIZE(da646x_edma_map),
};

static struct resource edma_resources[] = {
--
2.7.0