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Date: Thu, 4 Apr 2019 11:48:11 +0800
From: Sugar Zhang <sugar.zhang@...k-chips.com>
To: heiko@...ech.de, broonie@...nel.org
Cc: Liam Girdwood <lgirdwood@...il.com>,
Jaroslav Kysela <perex@...ex.cz>,
Takashi Iwai <tiwai@...e.com>, alsa-devel@...a-project.org,
linux-arm-kernel@...ts.infradead.org,
linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
Sugar Zhang <sugar.zhang@...k-chips.com>
Subject: [PATCH v1 05/12] ASoC: rockchip: pdm: change dma burst to 8
This patch decreases the transfer bursts to avoid the fifo overrun.
Signed-off-by: Sugar Zhang <sugar.zhang@...k-chips.com>
---
sound/soc/rockchip/rockchip_pdm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/rockchip/rockchip_pdm.c b/sound/soc/rockchip/rockchip_pdm.c
index abbb6d7..c50494b 100644
--- a/sound/soc/rockchip/rockchip_pdm.c
+++ b/sound/soc/rockchip/rockchip_pdm.c
@@ -24,7 +24,7 @@
#include "rockchip_pdm.h"
-#define PDM_DMA_BURST_SIZE (16) /* size * width: 16*4 = 64 bytes */
+#define PDM_DMA_BURST_SIZE (8) /* size * width: 8*4 = 32 bytes */
struct rk_pdm_dev {
struct device *dev;
--
2.7.4
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