linux-kernel - [PATCH 5/8] uio: uio_pruss: use gen_pool_dma

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Message-ID: <f26a7fd466d22aaaeae9cf32d3c4c43c333e0b35.1383303752.git.b42378@freescale.com>
Date:	Fri, 1 Nov 2013 19:36:03 +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 5/8] uio: uio_pruss: use gen_pool_dma_alloc() to allocate sram memory

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

Signed-off-by: Nicolin Chen <b42378@...escale.com>
---
 drivers/uio/uio_pruss.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/uio/uio_pruss.c b/drivers/uio/uio_pruss.c
index f519da9..96c4a19 100644
--- a/drivers/uio/uio_pruss.c
+++ b/drivers/uio/uio_pruss.c
@@ -158,14 +158,12 @@ static int pruss_probe(struct platform_device *dev)
 	if (pdata->sram_pool) {
 		gdev->sram_pool = pdata->sram_pool;
 		gdev->sram_vaddr =
-			gen_pool_alloc(gdev->sram_pool, sram_pool_sz);
+			(unsigned long)gen_pool_dma_alloc(gdev->sram_pool,
+					sram_pool_sz, &gdev->sram_paddr);
 		if (!gdev->sram_vaddr) {
 			dev_err(&dev->dev, "Could not allocate SRAM pool\n");
 			goto out_free;
 		}
-		gdev->sram_paddr =
-			gen_pool_virt_to_phys(gdev->sram_pool,
-					      gdev->sram_vaddr);
 	}
 
 	gdev->ddr_vaddr = dma_alloc_coherent(&dev->dev, extram_pool_sz,
-- 
1.8.4


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