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ARM: davinci: dm365: Add dma_slave_map to edma
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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 <[email protected]>
Signed-off-by: Sekhar Nori <[email protected]>
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Peter Ujfalusi authored and nsekhar committed Feb 22, 2016
1 parent f7a3be5 commit 0c750e1
Showing 1 changed file with 22 additions and 0 deletions.
22 changes: 22 additions & 0 deletions arch/arm/mach-davinci/dm365.c
Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,7 @@
#include <linux/serial_8250.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
#include <linux/dmaengine.h>
#include <linux/spi/spi.h>
#include <linux/platform_data/edma.h>
#include <linux/platform_data/gpio-davinci.h>
Expand Down Expand Up @@ -862,9 +863,30 @@ static s8 dm365_queue_priority_mapping[][2] = {
{-1, -1},
};

static const struct dma_slave_map dm365_edma_map[] = {
{ "davinci-mcbsp.0", "tx", EDMA_FILTER_PARAM(0, 2) },
{ "davinci-mcbsp.0", "rx", EDMA_FILTER_PARAM(0, 3) },
{ "davinci_voicecodec", "tx", EDMA_FILTER_PARAM(0, 2) },
{ "davinci_voicecodec", "rx", EDMA_FILTER_PARAM(0, 3) },
{ "spi_davinci.2", "tx", EDMA_FILTER_PARAM(0, 10) },
{ "spi_davinci.2", "rx", EDMA_FILTER_PARAM(0, 11) },
{ "spi_davinci.1", "tx", EDMA_FILTER_PARAM(0, 14) },
{ "spi_davinci.1", "rx", EDMA_FILTER_PARAM(0, 15) },
{ "spi_davinci.0", "tx", EDMA_FILTER_PARAM(0, 16) },
{ "spi_davinci.0", "rx", EDMA_FILTER_PARAM(0, 17) },
{ "spi_davinci.3", "tx", EDMA_FILTER_PARAM(0, 18) },
{ "spi_davinci.3", "rx", EDMA_FILTER_PARAM(0, 19) },
{ "dm6441-mmc.0", "rx", EDMA_FILTER_PARAM(0, 26) },
{ "dm6441-mmc.0", "tx", EDMA_FILTER_PARAM(0, 27) },
{ "dm6441-mmc.1", "rx", EDMA_FILTER_PARAM(0, 30) },
{ "dm6441-mmc.1", "tx", EDMA_FILTER_PARAM(0, 31) },
};

static struct edma_soc_info dm365_edma_pdata = {
.queue_priority_mapping = dm365_queue_priority_mapping,
.default_queue = EVENTQ_3,
.slave_map = dm365_edma_map,
.slavecnt = ARRAY_SIZE(dm365_edma_map),
};

static struct resource edma_resources[] = {
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