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path: root/drivers/media/platform/omap3isp/ispvideo.c
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Diffstat (limited to 'drivers/media/platform/omap3isp/ispvideo.c')
-rw-r--r--drivers/media/platform/omap3isp/ispvideo.c77
1 files changed, 1 insertions, 76 deletions
diff --git a/drivers/media/platform/omap3isp/ispvideo.c b/drivers/media/platform/omap3isp/ispvideo.c
index e0f594f34bec..a7ef0816230a 100644
--- a/drivers/media/platform/omap3isp/ispvideo.c
+++ b/drivers/media/platform/omap3isp/ispvideo.c
@@ -27,7 +27,6 @@
#include <linux/clk.h>
#include <linux/mm.h>
#include <linux/module.h>
-#include <linux/omap-iommu.h>
#include <linux/pagemap.h>
#include <linux/scatterlist.h>
#include <linux/sched.h>
@@ -326,55 +325,6 @@ isp_video_check_format(struct isp_video *video, struct isp_video_fh *vfh)
}
/* -----------------------------------------------------------------------------
- * IOMMU management
- */
-
-#define IOMMU_FLAG (IOVMF_ENDIAN_LITTLE | IOVMF_ELSZ_8)
-
-/*
- * ispmmu_vmap - Wrapper for Virtual memory mapping of a scatter gather list
- * @isp: Device pointer specific to the OMAP3 ISP.
- * @sglist: Pointer to source Scatter gather list to allocate.
- * @sglen: Number of elements of the scatter-gatter list.
- *
- * Returns a resulting mapped device address by the ISP MMU, or -ENOMEM if
- * we ran out of memory.
- */
-static dma_addr_t
-ispmmu_vmap(struct isp_device *isp, const struct scatterlist *sglist, int sglen)
-{
- struct sg_table *sgt;
- u32 da;
-
- sgt = kmalloc(sizeof(*sgt), GFP_KERNEL);
- if (sgt == NULL)
- return -ENOMEM;
-
- sgt->sgl = (struct scatterlist *)sglist;
- sgt->nents = sglen;
- sgt->orig_nents = sglen;
-
- da = omap_iommu_vmap(isp->domain, isp->dev, 0, sgt, IOMMU_FLAG);
- if (IS_ERR_VALUE(da))
- kfree(sgt);
-
- return da;
-}
-
-/*
- * ispmmu_vunmap - Unmap a device address from the ISP MMU
- * @isp: Device pointer specific to the OMAP3 ISP.
- * @da: Device address generated from a ispmmu_vmap call.
- */
-static void ispmmu_vunmap(struct isp_device *isp, dma_addr_t da)
-{
- struct sg_table *sgt;
-
- sgt = omap_iommu_vunmap(isp->domain, isp->dev, (u32)da);
- kfree(sgt);
-}
-
-/* -----------------------------------------------------------------------------
* Video queue operations
*/
@@ -392,24 +342,11 @@ static void isp_video_queue_prepare(struct isp_video_queue *queue,
*nbuffers = min(*nbuffers, video->capture_mem / PAGE_ALIGN(*size));
}
-static void isp_video_buffer_cleanup(struct isp_video_buffer *buf)
-{
- struct isp_video_fh *vfh = isp_video_queue_to_isp_video_fh(buf->queue);
- struct isp_buffer *buffer = to_isp_buffer(buf);
- struct isp_video *video = vfh->video;
-
- if (buffer->isp_addr) {
- ispmmu_vunmap(video->isp, buffer->isp_addr);
- buffer->isp_addr = 0;
- }
-}
-
static int isp_video_buffer_prepare(struct isp_video_buffer *buf)
{
struct isp_video_fh *vfh = isp_video_queue_to_isp_video_fh(buf->queue);
struct isp_buffer *buffer = to_isp_buffer(buf);
struct isp_video *video = vfh->video;
- unsigned long addr;
/* Refuse to prepare the buffer is the video node has registered an
* error. We don't need to take any lock here as the operation is
@@ -420,18 +357,7 @@ static int isp_video_buffer_prepare(struct isp_video_buffer *buf)
if (unlikely(video->error))
return -EIO;
- addr = ispmmu_vmap(video->isp, buf->sglist, buf->sglen);
- if (IS_ERR_VALUE(addr))
- return -EIO;
-
- if (!IS_ALIGNED(addr, 32)) {
- dev_dbg(video->isp->dev, "Buffer address must be "
- "aligned to 32 bytes boundary.\n");
- ispmmu_vunmap(video->isp, buffer->isp_addr);
- return -EINVAL;
- }
-
- buffer->isp_addr = addr;
+ buffer->isp_addr = buf->dma;
return 0;
}
@@ -490,7 +416,6 @@ static const struct isp_video_queue_operations isp_video_queue_ops = {
.queue_prepare = &isp_video_queue_prepare,
.buffer_prepare = &isp_video_buffer_prepare,
.buffer_queue = &isp_video_buffer_queue,
- .buffer_cleanup = &isp_video_buffer_cleanup,
};
/*

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