Commit d7c33cf8 authored by Baolin Wang's avatar Baolin Wang Committed by Vinod Koul
Browse files

dmaengine: sprd: Define the DMA data width type 



Define the DMA data width type to make code more readable.

Signed-off-by: default avatarBaolin Wang <baolin.wang@linaro.org>
Signed-off-by: default avatarVinod Koul <vkoul@kernel.org>
parent 6b1d255e

drivers/dma/sprd-dma.c

+11 −3
Original line number Diff line number Diff line
@@ -176,6 +176,14 @@ enum sprd_dma_int_type { 
	SPRD_DMA_CFGERR_INT,

};



/* dma data width values */

enum sprd_dma_datawidth {

	SPRD_DMA_DATAWIDTH_1_BYTE,

	SPRD_DMA_DATAWIDTH_2_BYTES,

	SPRD_DMA_DATAWIDTH_4_BYTES,

	SPRD_DMA_DATAWIDTH_8_BYTES,

};



/* dma channel hardware configuration */

struct sprd_dma_chn_hw {

	u32 pause;
@@ -604,15 +612,15 @@ static int sprd_dma_config(struct dma_chan *chan, struct sprd_dma_desc *sdesc, 
	u32 fix_mode = 0, fix_en = 0;



	if (IS_ALIGNED(len, 4)) {

		datawidth = 2;

		datawidth = SPRD_DMA_DATAWIDTH_4_BYTES;

		src_step = SPRD_DMA_WORD_STEP;

		des_step = SPRD_DMA_WORD_STEP;

	} else if (IS_ALIGNED(len, 2)) {

		datawidth = 1;

		datawidth = SPRD_DMA_DATAWIDTH_2_BYTES;

		src_step = SPRD_DMA_SHORT_STEP;

		des_step = SPRD_DMA_SHORT_STEP;

	} else {

		datawidth = 0;

		datawidth = SPRD_DMA_DATAWIDTH_1_BYTE;

		src_step = SPRD_DMA_BYTE_STEP;

		des_step = SPRD_DMA_BYTE_STEP;

	}