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Commit 92e4a3bf authored by Maxime Ripard's avatar Maxime Ripard Committed by Vinod Koul
Browse files

dmaengine: sun6i: Remove switch statement from buswidth convertion routine 



Since the conversion routine is quite trivial, we don't need this switch, and
we can just use a simple calculation.

Signed-off-by: default avatarMaxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
parent 2795eedf

drivers/dma/sun6i-dma.c

+3 −12
Original line number Diff line number Diff line
@@ -248,20 +248,11 @@ static inline int convert_burst(u32 maxburst, u8 *burst) 


static inline int convert_buswidth(enum dma_slave_buswidth addr_width, u8 *width)

{

	switch (addr_width) {

	case DMA_SLAVE_BUSWIDTH_1_BYTE:

		*width = 0;

		break;

	case DMA_SLAVE_BUSWIDTH_2_BYTES:

		*width = 1;

		break;

	case DMA_SLAVE_BUSWIDTH_4_BYTES:

		*width = 2;

		break;

	default:

	if ((addr_width < DMA_SLAVE_BUSWIDTH_1_BYTE) ||

	    (addr_width > DMA_SLAVE_BUSWIDTH_4_BYTES))

		return -EINVAL;

	}



	*width = addr_width >> 1;

	return 0;

}