dma_mcux_edma: Simplify max data size code

Instead of having preprocessor code, make a hidden kconfig
to indicate this and be smarter about the C code (these are all powers
of two)

Signed-off-by: Declan Snyder <[email protected]>

Author: decsny

drivers/dma/Kconfig.mcux_edma

@@ -35,6 +35,11 @@ config DMA_MCUX_EDMA_V5
 	help
 	  DMA version 5 driver for MCUX series SoCs.
 
+config DMA_MCUX_MAX_DATA_SIZE
+	int
+	default 64 if DMA_MCUX_EDMA_V5 || DMA_MCUX_EDMA_V4 || DMA_MCUX_EDMA_V3
+	default 32
+
 if DMA_MCUX_EDMA || DMA_MCUX_EDMA_V3 || DMA_MCUX_EDMA_V4 || DMA_MCUX_EDMA_V5
 
 config DMA_TCD_QUEUE_SIZE

drivers/dma/dma_mcux_edma.c

@@ -179,14 +179,8 @@ static ALWAYS_INLINE uint32_t dma_mcux_edma_remove_channel_gap(const struct devi
 
 static bool data_size_valid(const size_t data_size)
 {
-	return (data_size == 4U || data_size == 2U ||
-		data_size == 1U || data_size == 8U ||
-		data_size == 16U || data_size == 32U
-#if defined(CONFIG_DMA_MCUX_EDMA_V3) || defined(CONFIG_DMA_MCUX_EDMA_V4) \
-		|| defined(CONFIG_DMA_MCUX_EDMA_V5)
-		|| data_size == 64U
-#endif
-		);
+	return IS_POWER_OF_TWO(data_size) &&
+	       (data_size <= CONFIG_DMA_MCUX_MAX_DATA_SIZE);
 }
 
 static void nxp_edma_callback(edma_handle_t *handle, void *param, bool transferDone,