The data_offset in v4l2_planes structure will help us point to the start of
data content for that particular plane. This may be useful when a single
buffer contains the data for different planes e.g. Y planes of two fields in
the same buffer. With this, user space can pass queue top field and
bottom field with same dmafd and different data_offsets.
Signed-off-by: Nikhil Devshatwar <nikhil...@ti.com>
---
drivers/media/platform/ti-vpe/vpe.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/drivers/media/platform/ti-vpe/vpe.c
b/drivers/media/platform/ti-vpe/vpe.c
index 0ae19ee..e59eb81 100644
--- a/drivers/media/platform/ti-vpe/vpe.c
+++ b/drivers/media/platform/ti-vpe/vpe.c
@@ -495,6 +495,14 @@ struct vpe_mmr_adb {
#define VPE_SET_MMR_ADB_HDR(ctx, hdr, regs, offset_a) \
VPDMA_SET_MMR_ADB_HDR(ctx->mmr_adb, vpe_mmr_adb, hdr, regs, offset_a)
+
+static inline dma_addr_t vb2_dma_addr_plus_data_offset(struct vb2_buffer *vb,
+ unsigned int plane_no)
+{
+ return vb2_dma_contig_plane_dma_addr(vb, plane_no) +
+ vb->v4l2_planes[plane_no].data_offset;
+}
+
/*
* Set the headers for all of the address/data block structures.
*/
@@ -1002,7 +1010,7 @@ static void add_out_dtd(struct vpe_ctx *ctx, int port)
int plane = fmt->coplanar ? p_data->vb_part : 0;
vpdma_fmt = fmt->vpdma_fmt[plane];
- dma_addr = vb2_dma_contig_plane_dma_addr(vb, plane);
+ dma_addr = vb2_dma_addr_plus_data_offset(vb, plane);
if (!dma_addr) {
vpe_err(ctx->dev,
"acquiring output buffer(%d) dma_addr failed\n",
@@ -1042,7 +1050,7 @@ static void add_in_dtd(struct vpe_ctx *ctx, int port)
vpdma_fmt = fmt->vpdma_fmt[plane];
- dma_addr = vb2_dma_contig_plane_dma_addr(vb, plane);
+ dma_addr = vb2_dma_addr_plus_data_offset(vb, plane);
if (!dma_addr) {
vpe_err(ctx->dev,
"acquiring input buffer(%d) dma_addr failed\n",
--
1.7.9.5
--
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