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authorSugar Zhang <sugar.zhang@rock-chips.com>2021-08-26 12:01:49 +0800
committerMark Brown <broonie@kernel.org>2021-08-26 13:59:32 +0100
commit7a2df53bc090a161713da057df7455b39f6cd00d (patch)
treeb080bc1e730624dfaa5dac77295194625e48be7c /sound
parent6b76bcc004b046ea3c8eb66bbc6954f1d23cc2af (diff)
downloadlinux-7a2df53bc090a161713da057df7455b39f6cd00d.tar.bz2
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: Sugar 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: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/rockchip/rockchip_i2s.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/sound/soc/rockchip/rockchip_i2s.c b/sound/soc/rockchip/rockchip_i2s.c
index 05fce2c61f1a..2e0047ddbc39 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;