.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",
                .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 = {