linux-kernel - [PATCH 4/8] [media] coda: use gen_pool_dma

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Message-ID: <a4cb5380b1eeb1c634cedfe05d2a7dee950742a4.1383303752.git.b42378@freescale.com>
Date:	Fri, 1 Nov 2013 19:36:02 +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 4/8] [media] coda: use gen_pool_dma_alloc() to allocate iram buffer

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

Signed-off-by: Nicolin Chen <b42378@...escale.com>
---
 drivers/media/platform/coda.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/media/platform/coda.c b/drivers/media/platform/coda.c
index ed4998c..bd72fb9 100644
--- a/drivers/media/platform/coda.c
+++ b/drivers/media/platform/coda.c
@@ -3298,13 +3298,12 @@ static int coda_probe(struct platform_device *pdev)
 		dev->iram_size = CODA7_IRAM_SIZE;
 		break;
 	}
-	dev->iram_vaddr = gen_pool_alloc(dev->iram_pool, dev->iram_size);
+	dev->iram_vaddr = (unsigned long)gen_pool_dma_alloc(dev->iram_pool,
+			dev->iram_size, (dma_addr_t *)&dev->iram_paddr);
 	if (!dev->iram_vaddr) {
 		dev_err(&pdev->dev, "unable to alloc iram\n");
 		return -ENOMEM;
 	}
-	dev->iram_paddr = gen_pool_virt_to_phys(dev->iram_pool,
-						dev->iram_vaddr);
 
 	platform_set_drvdata(pdev, dev);
 
-- 
1.8.4


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