From 3752871a8c59a8af3cdeb38819cd44c876c07eb4 Mon Sep 17 00:00:00 2001 From: Sugar Zhang Date: Thu, 26 Aug 2021 12:01:49 +0800 Subject: [PATCH] UPSTREAM: ASoC: rockchip: i2s: Improve dma data transfer efficiency This patch changes dma data burst from 4 to 8 to improve data transfer efficiency. Change-Id: I0c33b4c37581ff4212dd86a936c7215fab9207b1 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 (cherry picked from commit 7a2df53bc090a161713da057df7455b39f6cd00d) --- 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 884c5f199195..be17e6241582 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;