Unverified Commit 7a2df53b authored by Sugar Zhang's avatar Sugar Zhang Committed by Mark Brown
Browse files

ASoC: rockchip: i2s: Improve dma data transfer efficiency 



This patch changes dma data burst from 4 to 8 to improve
data transfer efficiency.

Signed-off-by: default avatarSugar Zhang <sugar.zhang@rock-chips.com>
Link: https://lore.kernel.org/r/1629950520-14190-3-git-send-email-sugar.zhang@rock-chips.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 6b76bcc0

sound/soc/rockchip/rockchip_i2s.c

+2 −2
Original line number Diff line number Diff line
@@ -644,11 +644,11 @@ static int rockchip_i2s_probe(struct platform_device *pdev) 


	i2s->playback_dma_data.addr = res->start + I2S_TXDR;

	i2s->playback_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;

	i2s->playback_dma_data.maxburst = 4;

	i2s->playback_dma_data.maxburst = 8;



	i2s->capture_dma_data.addr = res->start + I2S_RXDR;

	i2s->capture_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;

	i2s->capture_dma_data.maxburst = 4;

	i2s->capture_dma_data.maxburst = 8;



	i2s->bclk_ratio = 64;