lkml.org 
[lkml]   [2021]   [Aug]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v1 03/15] ASoC: rockchip: i2s: Improve dma data transfer efficiency
Date
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


\
 
 \ /
  Last update: 2021-08-23 12:50    [W:0.043 / U:0.308 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site