linux-kernel - [PATCH 8/8] ASoC: pxa: use gen_pool_dma

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Message-ID: <290c4ed99f88c1d07544bf5f8f0c9a1d09395bed.1383303752.git.b42378@freescale.com>
Date:	Fri, 1 Nov 2013 19:36:06 +0800
From:	Nicolin Chen <b42378@...escale.com>
To:	<akpm@...ux-foundation.org>, <joe@...ches.com>, <nsekhar@...com>,
	<khilman@...prootsystems.com>, <linux@....linux.org.uk>,
	<dan.j.williams@...el.com>, <vinod.koul@...el.com>,
	<m.chehab@...sung.com>, <hjk@...sjkoch.de>,
	<gregkh@...uxfoundation.org>, <perex@...ex.cz>, <tiwai@...e.de>,
	<lgirdwood@...il.com>, <broonie@...nel.org>,
	<rmk+kernel@....linux.org.uk>, <eric.y.miao@...il.com>,
	<haojian.zhuang@...il.com>
CC:	<linux-kernel@...r.kernel.org>,
	<davinci-linux-open-source@...ux.davincidsp.com>,
	<linux-arm-kernel@...ts.infradead.org>,
	<dmaengine@...r.kernel.org>, <linux-media@...r.kernel.org>,
	<alsa-devel@...a-project.org>
Subject: [PATCH 8/8] ASoC: pxa: use gen_pool_dma_alloc() to allocate dma buffer

Since gen_pool_dma_alloc() is introduced, we implement it to simplify code.

Signed-off-by: Nicolin Chen <b42378@...escale.com>
---
 sound/soc/pxa/mmp-pcm.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/sound/soc/pxa/mmp-pcm.c b/sound/soc/pxa/mmp-pcm.c
index 8235e23..7929e19 100644
--- a/sound/soc/pxa/mmp-pcm.c
+++ b/sound/soc/pxa/mmp-pcm.c
@@ -201,10 +201,9 @@ static int mmp_pcm_preallocate_dma_buffer(struct snd_pcm_substream *substream,
 	if (!gpool)
 		return -ENOMEM;
 
-	buf->area = (unsigned char *)gen_pool_alloc(gpool, size);
+	buf->area = gen_pool_dma_alloc(gpool, size, &buf->addr);
 	if (!buf->area)
 		return -ENOMEM;
-	buf->addr = gen_pool_virt_to_phys(gpool, (unsigned long)buf->area);
 	buf->bytes = size;
 	return 0;
 }
-- 
1.8.4


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