From: Sugar Zhang Date: Thu, 26 Aug 2021 04:01:49 +0000 (+0800) Subject: ASoC: rockchip: i2s: Improve dma data transfer efficiency X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=7a2df53bc090a161713da057df7455b39f6cd00d;p=linux.git 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 Link: https://lore.kernel.org/r/1629950520-14190-3-git-send-email-sugar.zhang@rock-chips.com Signed-off-by: Mark Brown --- diff --git a/sound/soc/rockchip/rockchip_i2s.c b/sound/soc/rockchip/rockchip_i2s.c index 05fce2c61f1a3..2e0047ddbc39c 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;