linux-kernel - [PATCH v2 3/5] dmaengine: imx-sdma: remove usless lock

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Message-Id: <1528465490-19684-4-git-send-email-yibin.gong@nxp.com>
Date:   Fri,  8 Jun 2018 21:44:48 +0800
From:   Robin Gong <yibin.gong@....com>
To:     vkoul@...nel.org, s.hauer@...gutronix.de, dan.j.williams@...el.com
Cc:     dmaengine@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-imx@....com
Subject: [PATCH v2 3/5] dmaengine: imx-sdma: remove usless lock

No need anymore for 'lock' now since virtual dma will provide
the common lock instead.

Signed-off-by: Robin Gong <yibin.gong@....com>
---
 drivers/dma/imx-sdma.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c
index d93b58f..6faec89 100644
--- a/drivers/dma/imx-sdma.c
+++ b/drivers/dma/imx-sdma.c
@@ -349,7 +349,6 @@ struct sdma_channel {
 	unsigned long			event_mask[2];
 	unsigned long			watermark_level;
 	u32				shp_addr, per_addr;
-	spinlock_t			lock;
 	enum dma_status			status;
 	unsigned int			chn_count;
 	unsigned int			chn_real_count;
@@ -1908,7 +1907,6 @@ static int sdma_probe(struct platform_device *pdev)
 		struct sdma_channel *sdmac = &sdma->channel[i];
 
 		sdmac->sdma = sdma;
-		spin_lock_init(&sdmac->lock);
 
 		sdmac->channel = i;
 		sdmac->vc.desc_free = sdma_desc_free;
-- 
2.7.4