From: Sugar Zhang <sugar.zhang@rock-chips.com>
To: broonie@kernel.org, heiko@sntech.de
Cc: linux-rockchip@lists.infradead.org,
Sugar Zhang <sugar.zhang@rock-chips.com>,
Liam Girdwood <lgirdwood@gmail.com>,
Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.com>,
alsa-devel@alsa-project.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: [PATCH v1 03/15] ASoC: rockchip: i2s: Improve dma data transfer efficiency
Date: Mon, 23 Aug 2021 18:48:17 +0800 [thread overview]
Message-ID: <1629715710-21137-4-git-send-email-sugar.zhang@rock-chips.com> (raw)
In-Reply-To: <1629715710-21137-1-git-send-email-sugar.zhang@rock-chips.com>
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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next prev parent reply other threads:[~2021-08-23 10:52 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-23 10:48 [PATCH v1 0/15] Patches to update for rockchip i2s Sugar Zhang
2021-08-23 10:48 ` [PATCH v1 01/15] ASoC: rockchip: i2s: Add support for set bclk ratio Sugar Zhang
2021-08-23 10:48 ` [PATCH v1 02/15] ASoC: rockchip: i2s: Fixup clk div error Sugar Zhang
2021-08-23 10:48 ` Sugar Zhang [this message]
2021-08-23 10:48 ` [PATCH v1 04/15] ASoC: rockchip: i2s: Fix regmap_ops hang Sugar Zhang
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