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authorMarek Szyprowski <m.szyprowski@samsung.com>2011-08-29 03:20:56 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2011-09-06 15:05:10 -0300
commitba7fcb0c954921534707f08ebc4d8beeb2eb17e7 (patch)
tree0dc9929461e4ac2af79ab5bfffb1bdac181ad6c5 /drivers/media/video/videobuf2-dma-contig.c
parent035aa1475d6e4afdf97dccf6c6d6059063398b57 (diff)
[media] media: vb2: dma contig allocator: use dma_addr instread of paddr
Use the correct 'dma_addr' name for the buffer address. 'paddr' suggested that this is the physical address in system memory. For most ARM platforms these two are the same, but this is not a generic rule. 'dma_addr' will also point better to dma-mapping api. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> CC: Pawel Osciak <pawel@osciak.com> Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/videobuf2-dma-contig.c')
-rw-r--r--drivers/media/video/videobuf2-dma-contig.c16
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/media/video/videobuf2-dma-contig.c b/drivers/media/video/videobuf2-dma-contig.c
index a790a5f8c06f..f17ad98fcc5f 100644
--- a/drivers/media/video/videobuf2-dma-contig.c
+++ b/drivers/media/video/videobuf2-dma-contig.c
@@ -24,7 +24,7 @@ struct vb2_dc_conf {
struct vb2_dc_buf {
struct vb2_dc_conf *conf;
void *vaddr;
- dma_addr_t paddr;
+ dma_addr_t dma_addr;
unsigned long size;
struct vm_area_struct *vma;
atomic_t refcount;
@@ -42,7 +42,7 @@ static void *vb2_dma_contig_alloc(void *alloc_ctx, unsigned long size)
if (!buf)
return ERR_PTR(-ENOMEM);
- buf->vaddr = dma_alloc_coherent(conf->dev, size, &buf->paddr,
+ buf->vaddr = dma_alloc_coherent(conf->dev, size, &buf->dma_addr,
GFP_KERNEL);
if (!buf->vaddr) {
dev_err(conf->dev, "dma_alloc_coherent of size %ld failed\n",
@@ -69,7 +69,7 @@ static void vb2_dma_contig_put(void *buf_priv)
if (atomic_dec_and_test(&buf->refcount)) {
dma_free_coherent(buf->conf->dev, buf->size, buf->vaddr,
- buf->paddr);
+ buf->dma_addr);
kfree(buf);
}
}
@@ -78,7 +78,7 @@ static void *vb2_dma_contig_cookie(void *buf_priv)
{
struct vb2_dc_buf *buf = buf_priv;
- return &buf->paddr;
+ return &buf->dma_addr;
}
static void *vb2_dma_contig_vaddr(void *buf_priv)
@@ -106,7 +106,7 @@ static int vb2_dma_contig_mmap(void *buf_priv, struct vm_area_struct *vma)
return -EINVAL;
}
- return vb2_mmap_pfn_range(vma, buf->paddr, buf->size,
+ return vb2_mmap_pfn_range(vma, buf->dma_addr, buf->size,
&vb2_common_vm_ops, &buf->handler);
}
@@ -115,14 +115,14 @@ static void *vb2_dma_contig_get_userptr(void *alloc_ctx, unsigned long vaddr,
{
struct vb2_dc_buf *buf;
struct vm_area_struct *vma;
- dma_addr_t paddr = 0;
+ dma_addr_t dma_addr = 0;
int ret;
buf = kzalloc(sizeof *buf, GFP_KERNEL);
if (!buf)
return ERR_PTR(-ENOMEM);
- ret = vb2_get_contig_userptr(vaddr, size, &vma, &paddr);
+ ret = vb2_get_contig_userptr(vaddr, size, &vma, &dma_addr);
if (ret) {
printk(KERN_ERR "Failed acquiring VMA for vaddr 0x%08lx\n",
vaddr);
@@ -131,7 +131,7 @@ static void *vb2_dma_contig_get_userptr(void *alloc_ctx, unsigned long vaddr,
}
buf->size = size;
- buf->paddr = paddr;
+ buf->dma_addr = dma_addr;
buf->vma = vma;
return buf;

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