Messages in this thread Patch in this message | | | From | Sugar Zhang <> | Subject | [PATCH v1 03/15] ASoC: rockchip: i2s: Improve dma data transfer efficiency | Date | Mon, 23 Aug 2021 18:48:17 +0800 |
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This patch changes dma data burst from 4 to 8 to improve data transfer efficiency.
Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com> ---
sound/soc/rockchip/rockchip_i2s.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/sound/soc/rockchip/rockchip_i2s.c b/sound/soc/rockchip/rockchip_i2s.c index 05fce2c..2e0047d 100644 --- a/sound/soc/rockchip/rockchip_i2s.c +++ b/sound/soc/rockchip/rockchip_i2s.c @@ -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; -- 2.7.4
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