ARM: davinci: dm646x: Clean up the McASP DMA resources

Add names to the DMA resources and remove the RX DMA dummy part for McASP1.
Signed-off-by: NPeter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

arch/arm/mach-davinci/dm646x.c

@@ -610,19 +610,21 @@ static struct resource dm646x_mcasp0_resources[] = {
 		.end 	= DAVINCI_DM646X_MCASP0_REG_BASE + (SZ_1K << 1) - 1,
 		.flags 	= IORESOURCE_MEM,
 	},
-	/* first TX, then RX */
 	{
+		.name	= "tx",
 		.start	= DAVINCI_DM646X_DMA_MCASP0_AXEVT0,
 		.end	= DAVINCI_DM646X_DMA_MCASP0_AXEVT0,
 		.flags	= IORESOURCE_DMA,
 	},
 	{
+		.name	= "rx",
 		.start	= DAVINCI_DM646X_DMA_MCASP0_AREVT0,
 		.end	= DAVINCI_DM646X_DMA_MCASP0_AREVT0,
 		.flags	= IORESOURCE_DMA,
 	},
 };
 
+/* DIT mode only, rx is not supported */
 static struct resource dm646x_mcasp1_resources[] = {
 	{
 		.name	= "mpu",
@@ -630,18 +632,12 @@ static struct resource dm646x_mcasp1_resources[] = {
 		.end	= DAVINCI_DM646X_MCASP1_REG_BASE + (SZ_1K << 1) - 1,
 		.flags	= IORESOURCE_MEM,
 	},
-	/* DIT mode, only TX event */
 	{
+		.name	= "tx",
 		.start	= DAVINCI_DM646X_DMA_MCASP1_AXEVT1,
 		.end	= DAVINCI_DM646X_DMA_MCASP1_AXEVT1,
 		.flags	= IORESOURCE_DMA,
 	},
-	/* DIT mode, dummy entry */
-	{
-		.start	= -1,
-		.end	= -1,
-		.flags	= IORESOURCE_DMA,
-	},
 };
 
 static struct platform_device dm646x_mcasp0_device = {