UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

dmaengine: pl330: use dma_set_max_seg_size to set the sg limit 

Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
Vinod Koul 2013-09-02 21:54:48 +05:30
parent 14f00c74f7
commit dbaf6d8511
1 changed files with 8 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
drivers/dma/pl330.c
View File

@ -2871,13 +2871,6 @@ static int pl330_dma_device_slave_caps(struct dma_chan *dchan,
caps->cmd_pause = false; caps->cmd_pause = false;
caps->cmd_terminate = true; caps->cmd_terminate = true;
/*
* This is the limit for transfers with a buswidth of 1, larger
* buswidths will have larger limits.
*/
caps->max_sg_len = 1900800;
caps->max_sg_nr = 0;
return 0; return 0;
} }
@ -3001,6 +2994,14 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id)
"unable to register DMA to the generic DT DMA helpers\n"); "unable to register DMA to the generic DT DMA helpers\n");
} }
} }
/*
* This is the limit for transfers with a buswidth of 1, larger
* buswidths will have larger limits.
*/
ret = dma_set_max_seg_size(&adev->dev, 1900800);
if (ret)
dev_err(&adev->dev, "unable to set the seg size\n");
dev_info(&adev->dev, dev_info(&adev->dev,
"Loaded driver for PL330 DMAC-%d\n", adev->periphid); "Loaded driver for PL330 DMAC-%d\n", adev->periphid);