From 86a7b6ffd90095d81d9fa0d8b48955b7c83b2e2f Mon Sep 17 00:00:00 2001
From: Sugar Zhang <sugar.zhang@rock-chips.com>
Date: Thu, 4 Apr 2019 11:48:11 +0800
Subject: [PATCH] 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@rock-chips.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
 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 8a2e3bbce3a1..d0b403a0e27b 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;