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ARM: davinci: devices-da8xx: 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 <peter.ujfalusi@ti.com>
[nsekhar@ti.com: fix map for edma1]
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
This commit is contained in:
Peter Ujfalusi 2016-02-02 14:43:13 +02:00 committed by Sekhar Nori
parent 92e963f50f
commit 1ce9300bf7
1 changed files with 46 additions and 0 deletions
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46
arch/arm/mach-davinci/devices-da8xx.c
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@ -17,6 +17,7 @@
#include <linux/ahci_platform.h>
#include <linux/clk.h>
#include <linux/reboot.h>
#include <linux/dmaengine.h>
#include <mach/cputype.h>
#include <mach/common.h>
@ -233,16 +234,54 @@ static const struct platform_device_info da850_edma1_device __initconst = {
.size_data = sizeof(da850_edma1_pdata),
};
static const struct dma_slave_map da830_edma_map[] = {
{ "davinci-mcasp.0", "rx", EDMA_FILTER_PARAM(0, 0) },
{ "davinci-mcasp.0", "tx", EDMA_FILTER_PARAM(0, 1) },
{ "davinci-mcasp.1", "rx", EDMA_FILTER_PARAM(0, 2) },
{ "davinci-mcasp.1", "tx", EDMA_FILTER_PARAM(0, 3) },
{ "davinci-mcasp.2", "rx", EDMA_FILTER_PARAM(0, 4) },
{ "davinci-mcasp.2", "tx", EDMA_FILTER_PARAM(0, 5) },
{ "spi_davinci.0", "rx", EDMA_FILTER_PARAM(0, 14) },
{ "spi_davinci.0", "tx", EDMA_FILTER_PARAM(0, 15) },
{ "da830-mmc.0", "rx", EDMA_FILTER_PARAM(0, 16) },
{ "da830-mmc.0", "tx", EDMA_FILTER_PARAM(0, 17) },
{ "spi_davinci.1", "rx", EDMA_FILTER_PARAM(0, 18) },
{ "spi_davinci.1", "tx", EDMA_FILTER_PARAM(0, 19) },
};
int __init da830_register_edma(struct edma_rsv_info *rsv)
{
struct platform_device *edma_pdev;
da8xx_edma0_pdata.rsv = rsv;
da8xx_edma0_pdata.slave_map = da830_edma_map;
da8xx_edma0_pdata.slavecnt = ARRAY_SIZE(da830_edma_map);
edma_pdev = platform_device_register_full(&da8xx_edma0_device);
return IS_ERR(edma_pdev) ? PTR_ERR(edma_pdev) : 0;
}
static const struct dma_slave_map da850_edma0_map[] = {
{ "davinci-mcasp.0", "rx", EDMA_FILTER_PARAM(0, 0) },
{ "davinci-mcasp.0", "tx", EDMA_FILTER_PARAM(0, 1) },
{ "davinci-mcbsp.0", "rx", EDMA_FILTER_PARAM(0, 2) },
{ "davinci-mcbsp.0", "tx", EDMA_FILTER_PARAM(0, 3) },
{ "davinci-mcbsp.1", "rx", EDMA_FILTER_PARAM(0, 4) },
{ "davinci-mcbsp.1", "tx", EDMA_FILTER_PARAM(0, 5) },
{ "spi_davinci.0", "rx", EDMA_FILTER_PARAM(0, 14) },
{ "spi_davinci.0", "tx", EDMA_FILTER_PARAM(0, 15) },
{ "da830-mmc.0", "rx", EDMA_FILTER_PARAM(0, 16) },
{ "da830-mmc.0", "tx", EDMA_FILTER_PARAM(0, 17) },
{ "spi_davinci.1", "rx", EDMA_FILTER_PARAM(0, 18) },
{ "spi_davinci.1", "tx", EDMA_FILTER_PARAM(0, 19) },
};
static const struct dma_slave_map da850_edma1_map[] = {
{ "da830-mmc.1", "rx", EDMA_FILTER_PARAM(1, 28) },
{ "da830-mmc.1", "tx", EDMA_FILTER_PARAM(1, 29) },
};
int __init da850_register_edma(struct edma_rsv_info *rsv[2])
{
struct platform_device *edma_pdev;
@ -252,11 +291,18 @@ int __init da850_register_edma(struct edma_rsv_info *rsv[2])
da850_edma1_pdata.rsv = rsv[1];
}
da8xx_edma0_pdata.slave_map = da850_edma0_map;
da8xx_edma0_pdata.slavecnt = ARRAY_SIZE(da850_edma0_map);
edma_pdev = platform_device_register_full(&da8xx_edma0_device);
if (IS_ERR(edma_pdev)) {
pr_warn("%s: Failed to register eDMA0\n", __func__);
return PTR_ERR(edma_pdev);
}
da850_edma1_pdata.slave_map = da850_edma1_map;
da850_edma1_pdata.slavecnt = ARRAY_SIZE(da850_edma1_map);
edma_pdev = platform_device_register_full(&da850_edma1_device);
return IS_ERR(edma_pdev) ? PTR_ERR(edma_pdev) : 0;
}