ARM: davinci/common: Convert edma driver to handle one eDMA instance per driver

Currently we have one device created to handle all (maximum 2) eDMAs in the
system.
With this change all eDMA instance will have it's own device/driver.
This change is needed for further cleanups in the eDMA driver stack since
the one device/driver to handle all eDMAs in the system was not flexible
enough and prevents the upcoming work.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

1 files changed, 37 insertions, 73 deletions

diff --git a/arch/arm/mach-davinci/devices-da8xx.c b/arch/arm/mach-davinci/devices-da8xx.c
index 29e08aac8294..9ae049ae816a 100644
--- a/arch/arm/mach-davinci/devices-da8xx.c
+++ b/arch/arm/mach-davinci/devices-da8xx.c
@@ -147,150 +147,114 @@ static s8 da850_queue_priority_mapping[][2] = {
 	{-1, -1}
 };
 
-static struct edma_soc_info da830_edma_cc0_info = {
+static struct edma_soc_info da8xx_edma0_pdata = {
 	.queue_priority_mapping	= da8xx_queue_priority_mapping,
 	.default_queue		= EVENTQ_1,
 };
 
-static struct edma_soc_info *da830_edma_info[EDMA_MAX_CC] = {
-	&da830_edma_cc0_info,
+static struct edma_soc_info da850_edma1_pdata = {
+	.queue_priority_mapping	= da850_queue_priority_mapping,
+	.default_queue		= EVENTQ_0,
 };
 
-static struct edma_soc_info da850_edma_cc_info[] = {
+static struct resource da8xx_edma0_resources[] = {
 	{
-		.queue_priority_mapping	= da8xx_queue_priority_mapping,
-		.default_queue		= EVENTQ_1,
-	},
-	{
-		.queue_priority_mapping	= da850_queue_priority_mapping,
-		.default_queue		= EVENTQ_0,
-	},
-};
-
-static struct edma_soc_info *da850_edma_info[EDMA_MAX_CC] = {
-	&da850_edma_cc_info[0],
-	&da850_edma_cc_info[1],
-};
-
-static struct resource da830_edma_resources[] = {
-	{
-		.name	= "edma_cc0",
+		.name	= "edma3_cc",
 		.start	= DA8XX_TPCC_BASE,
 		.end	= DA8XX_TPCC_BASE + SZ_32K - 1,
 		.flags	= IORESOURCE_MEM,
 	},
 	{
-		.name	= "edma_tc0",
+		.name	= "edma3_tc0",
 		.start	= DA8XX_TPTC0_BASE,
 		.end	= DA8XX_TPTC0_BASE + SZ_1K - 1,
 		.flags	= IORESOURCE_MEM,
 	},
 	{
-		.name	= "edma_tc1",
+		.name	= "edma3_tc1",
 		.start	= DA8XX_TPTC1_BASE,
 		.end	= DA8XX_TPTC1_BASE + SZ_1K - 1,
 		.flags	= IORESOURCE_MEM,
 	},
 	{
-		.name	= "edma0",
+		.name	= "edma3_ccint",
 		.start	= IRQ_DA8XX_CCINT0,
 		.flags	= IORESOURCE_IRQ,
 	},
 	{
-		.name	= "edma0_err",
+		.name	= "edma3_ccerrint",
 		.start	= IRQ_DA8XX_CCERRINT,
 		.flags	= IORESOURCE_IRQ,
 	},
 };
 
-static struct resource da850_edma_resources[] = {
-	{
-		.name	= "edma_cc0",
-		.start	= DA8XX_TPCC_BASE,
-		.end	= DA8XX_TPCC_BASE + SZ_32K - 1,
-		.flags	= IORESOURCE_MEM,
-	},
-	{
-		.name	= "edma_tc0",
-		.start	= DA8XX_TPTC0_BASE,
-		.end	= DA8XX_TPTC0_BASE + SZ_1K - 1,
-		.flags	= IORESOURCE_MEM,
-	},
+static struct resource da850_edma1_resources[] = {
 	{
-		.name	= "edma_tc1",
-		.start	= DA8XX_TPTC1_BASE,
-		.end	= DA8XX_TPTC1_BASE + SZ_1K - 1,
-		.flags	= IORESOURCE_MEM,
-	},
-	{
-		.name	= "edma_cc1",
+		.name	= "edma3_cc",
 		.start	= DA850_TPCC1_BASE,
 		.end	= DA850_TPCC1_BASE + SZ_32K - 1,
 		.flags	= IORESOURCE_MEM,
 	},
 	{
-		.name	= "edma_tc2",
+		.name	= "edma3_tc0",
 		.start	= DA850_TPTC2_BASE,
 		.end	= DA850_TPTC2_BASE + SZ_1K - 1,
 		.flags	= IORESOURCE_MEM,
 	},
 	{
-		.name	= "edma0",
-		.start	= IRQ_DA8XX_CCINT0,
-		.flags	= IORESOURCE_IRQ,
-	},
-	{
-		.name	= "edma0_err",
-		.start	= IRQ_DA8XX_CCERRINT,
-		.flags	= IORESOURCE_IRQ,
-	},
-	{
-		.name	= "edma1",
+		.name	= "edma3_ccint",
 		.start	= IRQ_DA850_CCINT1,
 		.flags	= IORESOURCE_IRQ,
 	},
 	{
-		.name	= "edma1_err",
+		.name	= "edma3_ccerrint",
 		.start	= IRQ_DA850_CCERRINT1,
 		.flags	= IORESOURCE_IRQ,
 	},
 };
 
-static struct platform_device da830_edma_device = {
+static struct platform_device da8xx_edma0_device = {
 	.name		= "edma",
-	.id		= -1,
+	.id		= 0,
 	.dev = {
-		.platform_data = da830_edma_info,
+		.platform_data = &da8xx_edma0_pdata,
 	},
-	.num_resources	= ARRAY_SIZE(da830_edma_resources),
-	.resource	= da830_edma_resources,
+	.num_resources	= ARRAY_SIZE(da8xx_edma0_resources),
+	.resource	= da8xx_edma0_resources,
 };
 
-static struct platform_device da850_edma_device = {
+static struct platform_device da850_edma1_device = {
 	.name		= "edma",
-	.id		= -1,
+	.id		= 1,
 	.dev = {
-		.platform_data = da850_edma_info,
+		.platform_data = &da850_edma1_pdata,
 	},
-	.num_resources	= ARRAY_SIZE(da850_edma_resources),
-	.resource	= da850_edma_resources,
+	.num_resources	= ARRAY_SIZE(da850_edma1_resources),
+	.resource	= da850_edma1_resources,
 };
 
 int __init da830_register_edma(struct edma_rsv_info *rsv)
 {
-	da830_edma_cc0_info.rsv = rsv;
+	da8xx_edma0_pdata.rsv = rsv;
 
-	return platform_device_register(&da830_edma_device);
+	return platform_device_register(&da8xx_edma0_device);
 }
 
 int __init da850_register_edma(struct edma_rsv_info *rsv[2])
 {
+	int ret;
+
 	if (rsv) {
-		da850_edma_cc_info[0].rsv = rsv[0];
-		da850_edma_cc_info[1].rsv = rsv[1];
+		da8xx_edma0_pdata.rsv = rsv[0];
+		da850_edma1_pdata.rsv = rsv[1];
 	}
 
-	return platform_device_register(&da850_edma_device);
+	ret = platform_device_register(&da8xx_edma0_device);
+	if (ret) {
+		pr_warn("%s: Failed to register eDMA0\n", __func__);
+		return ret;
+	}
+	return platform_device_register(&da850_edma1_device);
 }
 
 static struct resource da8xx_i2c_resources0[] = {