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

media: ti-vpe: Set the DMA mask and coherent mask 

VPE uses VPDMA (built-in dma engine) to transfer data to and from the IP
and memory. VPDMA expect 32 bits addresses. To make sure that is always
the case set the DMA mask and coherent mask for the device.

Signed-off-by: Benoit Parrot <bparrot@ti.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Benoit Parrot 2019-10-07 12:10:03 -03:00 committed by Mauro Carvalho Chehab
parent 63728b1cab
commit f3320447a2
1 changed files with 7 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/media/platform/ti-vpe/vpe.c
View File

@ -2517,6 +2517,13 @@ static int vpe_probe(struct platform_device *pdev)
struct vpe_dev *dev;
int ret, irq, func;
ret = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
if (ret) {
dev_err(&pdev->dev,
"32-bit consistent DMA enable failed\n");
return ret;
}
dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
if (!dev)
return -ENOMEM;