From: Baolin Wang <baolin.wang@linaro.org>
To: dan.j.williams@intel.com, vkoul@kernel.org
Cc: eric.long@unisoc.com, orsonzhai@gmail.com, zhang.lyra@gmail.com,
vincent.guittot@linaro.org, baolin.wang@linaro.org,
dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v2 5/6] dmaengine: sprd: Fix the right place to configure 2-stage transfer
Date: Mon, 6 May 2019 15:28:32 +0800 [thread overview]
Message-ID: <7eb64b3319cfa1859f2912398700d4204553c028.1557127239.git.baolin.wang@linaro.org> (raw)
In-Reply-To: <cover.1557127239.git.baolin.wang@linaro.org>
In-Reply-To: <cover.1557127239.git.baolin.wang@linaro.org>
From: Eric Long <eric.long@unisoc.com>
Move the 2-stage configuration before configuring the link-list mode,
since we will use some 2-stage configuration to fill the link-list
configuration.
Signed-off-by: Eric Long <eric.long@unisoc.com>
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
---
drivers/dma/sprd-dma.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/dma/sprd-dma.c b/drivers/dma/sprd-dma.c
index a01c232..01abed5 100644
--- a/drivers/dma/sprd-dma.c
+++ b/drivers/dma/sprd-dma.c
@@ -911,6 +911,12 @@ static int sprd_dma_fill_linklist_desc(struct dma_chan *chan,
schan->linklist.virt_addr = 0;
}
+ /* Set channel mode and trigger mode for 2-stage transfer */
+ schan->chn_mode =
+ (flags >> SPRD_DMA_CHN_MODE_SHIFT) & SPRD_DMA_CHN_MODE_MASK;
+ schan->trg_mode =
+ (flags >> SPRD_DMA_TRG_MODE_SHIFT) & SPRD_DMA_TRG_MODE_MASK;
+
sdesc = kzalloc(sizeof(*sdesc), GFP_NOWAIT);
if (!sdesc)
return NULL;
@@ -944,12 +950,6 @@ static int sprd_dma_fill_linklist_desc(struct dma_chan *chan,
}
}
- /* Set channel mode and trigger mode for 2-stage transfer */
- schan->chn_mode =
- (flags >> SPRD_DMA_CHN_MODE_SHIFT) & SPRD_DMA_CHN_MODE_MASK;
- schan->trg_mode =
- (flags >> SPRD_DMA_TRG_MODE_SHIFT) & SPRD_DMA_TRG_MODE_MASK;
-
ret = sprd_dma_fill_desc(chan, &sdesc->chn_hw, 0, 0, src, dst, len,
dir, flags, slave_cfg);
if (ret) {
--
1.7.9.5
next prev parent reply other threads:[~2019-05-06 7:29 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-06 7:28 [PATCH v2 0/6] Fix some bugs and add new feature for Spreadtrum DMA engine Baolin Wang
2019-05-06 7:28 ` [PATCH v2 1/6] dmaengine: sprd: Fix the possible crash when getting descriptor status Baolin Wang
2019-05-06 7:28 ` [PATCH v2 2/6] dmaengine: sprd: Add validation of current descriptor in irq handler Baolin Wang
2019-05-06 7:28 ` [PATCH v2 3/6] dmaengine: sprd: Fix the incorrect start for 2-stage destination channels Baolin Wang
2019-05-06 7:28 ` [PATCH v2 4/6] dmaengine: sprd: Fix block length overflow Baolin Wang
2019-05-06 7:28 ` Baolin Wang [this message]
2019-05-06 7:28 ` [PATCH v2 6/6] dmaengine: sprd: Add interrupt support for 2-stage transfer Baolin Wang
2019-05-21 13:54 ` [PATCH v2 0/6] Fix some bugs and add new feature for Spreadtrum DMA engine Vinod Koul
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