From: 邱建斌 <qjb@rock-chips.com>
Date: Thu, 14 Mar 2013 03:42:36 +0000 (+0800)
Subject: audio DMA :  dma_period is not an integer multiple of dma_size support
X-Git-Tag: firefly_0821_release~7412
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=e609b8428a2abd372ad63872c6e2dbf5c97b106c;p=firefly-linux-kernel-4.4.55.git

audio DMA :  dma_period is not an integer multiple of dma_size support
---

diff --git a/sound/soc/rk29/rk29_pcm.c b/sound/soc/rk29/rk29_pcm.c
index d936b2653d09..69b871a3bd98 100755
--- a/sound/soc/rk29/rk29_pcm.c
+++ b/sound/soc/rk29/rk29_pcm.c
@@ -114,15 +114,14 @@ static void rockchip_pcm_enqueue(struct snd_pcm_substream *substream)
 		limit = prtd->dma_limit;
 
 	if (DMA_INFIN_LOOP()) {
-		if(prtd->dma_period % prtd->params->dma_size*16){
-			WARN_ON(1);
+		if(prtd->dma_period % (prtd->params->dma_size*16)){
+			printk("dma_period(%d) is not an integer multiple of dma_size(%d)",prtd->dma_period,prtd->params->dma_size*16);
 			rk29_dma_config(prtd->params->channel,
 								prtd->params->dma_size, 1);
 		}							
 		else
 			rk29_dma_config(prtd->params->channel,
 							prtd->params->dma_size, 16);	
-
 		ret = rk29_dma_enqueue_ring(prtd->params->channel,
 				substream, pos, prtd->dma_period, limit ,true);
 		if (ret == 0)