lkml.org 
[lkml]   [2012]   [Jul]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 3/3] dw_dmac: set default alignment
Date
The default values are filled to support at least mem-to-mem tests provided by
dmatest module. It makes sense to choose the 4 bytes (2 least significant bits)
alignment by the default.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
drivers/dma/dw_dmac.c | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c
index 3d061c6..2a19ab6 100644
--- a/drivers/dma/dw_dmac.c
+++ b/drivers/dma/dw_dmac.c
@@ -1485,6 +1485,12 @@ static int __devinit dw_probe(struct platform_device *pdev)
dw->dma.device_tx_status = dwc_tx_status;
dw->dma.device_issue_pending = dwc_issue_pending;

+ /* Set default alignment */
+ dw->dma.copy_align = 2;
+ dw->dma.xor_align = 2;
+ dw->dma.pq_align = 2;
+ dw->dma.fill_align = 2;
+
dma_writel(dw, CFG, DW_CFG_DMA_EN);

printk(KERN_INFO "%s: DesignWare DMA Controller, %d channels\n",
--
1.7.10.4


\
 
 \ /
  Last update: 2012-07-13 10:41    [W:0.063 / U:0.400 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site