[RFC v02 07/15] ARM: davinci: dm365: Add dma_filter_map to edma

Peter Ujfalusi
2015-11-30T13:45:37Z

Provide the dma_filter_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@ti.com>
---
arch/arm/mach-davinci/dm365.c | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)

diff --git a/arch/arm/mach-davinci/dm365.c b/arch/arm/mach-davinci/dm365.c
index 2068cbeaeb03..3dfcf7c9aa20 100644
--- a/arch/arm/mach-davinci/dm365.c
+++ b/arch/arm/mach-davinci/dm365.c
@@ -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>
@@ -862,9 +863,30 @@ static s8 dm365_queue_priority_mapping[][2] = {
{-1, -1},
};

+static struct dma_filter_map da365_edma_map[] = {
+ DMA_FILTER_ENTRY("davinci-mcbsp.0", "tx", EDMA_CTLR_CHAN(0, 2)),
+ DMA_FILTER_ENTRY("davinci-mcbsp.0", "rx", EDMA_CTLR_CHAN(0, 3)),
+ DMA_FILTER_ENTRY("davinci_voicecodec", "tx", EDMA_CTLR_CHAN(0, 2)),
+ DMA_FILTER_ENTRY("davinci_voicecodec", "rx", EDMA_CTLR_CHAN(0, 3)),
+ DMA_FILTER_ENTRY("spi_davinci.2", "tx", EDMA_CTLR_CHAN(0, 10)),
+ DMA_FILTER_ENTRY("spi_davinci.2", "rx", EDMA_CTLR_CHAN(0, 11)),
+ DMA_FILTER_ENTRY("spi_davinci.1", "tx", EDMA_CTLR_CHAN(0, 14)),
+ DMA_FILTER_ENTRY("spi_davinci.1", "rx", EDMA_CTLR_CHAN(0, 15)),
+ DMA_FILTER_ENTRY("spi_davinci.0", "tx", EDMA_CTLR_CHAN(0, 16)),
+ DMA_FILTER_ENTRY("spi_davinci.0", "rx", EDMA_CTLR_CHAN(0, 17)),
+ DMA_FILTER_ENTRY("spi_davinci.3", "tx", EDMA_CTLR_CHAN(0, 18)),
+ DMA_FILTER_ENTRY("spi_davinci.3", "rx", EDMA_CTLR_CHAN(0, 19)),
+ DMA_FILTER_ENTRY("dm6441-mmc.0", "rx", EDMA_CTLR_CHAN(0, 26)),
+ DMA_FILTER_ENTRY("dm6441-mmc.0", "tx", EDMA_CTLR_CHAN(0, 27)),
+ DMA_FILTER_ENTRY("dm6441-mmc.1", "rx", EDMA_CTLR_CHAN(0, 30)),
+ DMA_FILTER_ENTRY("dm6441-mmc.1", "tx", EDMA_CTLR_CHAN(0, 31)),
+};
+
static struct edma_soc_info dm365_edma_pdata = {
.queue_priority_mapping = dm365_queue_priority_mapping,
.default_queue = EVENTQ_3,
+ .filter_map = da365_edma_map,
+ .filtercnt = ARRAY_SIZE(da365_edma_map),
};

static struct resource edma_resources[] = {
--
2.6.3