path: root/drivers/gpu/ipu-v3/Makefile
diff options
authorSteve Longerbeam <>2016-09-17 12:33:58 -0700
committerPhilipp Zabel <>2016-09-19 08:30:27 +0200
commitcd98e85a6b786da83e0b120b53a182d100c19c9b (patch)
tree7da1962a7b18ce2b444553cd721de0724bbb51ae /drivers/gpu/ipu-v3/Makefile
parent8b9c3d5099b265892ab3578bc757d9b81e5655a6 (diff)
gpu: ipu-v3: Add queued image conversion support
This patch implements image conversion support using the IC tasks, with tiling to support scaling to and from images up to 4096x4096. Image rotation is also supported. Image conversion requests are added to a run queue under the IC tasks. The internal API is subsystem agnostic (no V4L2 dependency except for the use of V4L2 fourcc pixel formats). Callers prepare for image conversion by calling ipu_image_convert_prepare(), which initializes the parameters of the conversion. The caller passes in the ipu and IC task to use for the conversion, the input and output image formats, a rotation mode, and a completion callback and completion context pointer: struct ipu_image_converter_ctx * ipu_image_convert_prepare(struct ipu_soc *ipu, enum ipu_ic_task ic_task, struct ipu_image *in, struct ipu_image *out, enum ipu_rotate_mode rot_mode, ipu_image_converter_cb_t complete, void *complete_context); A new conversion context is created that is added to an IC task context queue. The caller is given the new conversion context, which can then be passed to the further APIs: int ipu_image_convert_queue(struct ipu_image_converter_run *run); This queues the given image conversion request run to a run queue, and starts the conversion immediately if the run queue is empty. Only the physaddr's of the input and output image buffers are needed, since the conversion context was created previously with ipu_image_convert_prepare(). When the conversion completes, the run pointer is returned to the completion callback. void ipu_image_convert_abort(struct ipu_image_converter_ctx *ctx); This will abort any active or pending conversions for this context. Any currently active or pending runs belonging to this context are returned via the completion callback with an error status. void ipu_image_convert_unprepare(struct ipu_image_converter_ctx *ctx); Unprepares the conversion context. Any active or pending runs will be aborted by calling ipu_image_convert_abort(). Signed-off-by: Steve Longerbeam <> Signed-off-by: Philipp Zabel <>
Diffstat (limited to 'drivers/gpu/ipu-v3/Makefile')
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/ipu-v3/Makefile b/drivers/gpu/ipu-v3/Makefile
index aeba9dccb0af..5f961416c4ee 100644
--- a/drivers/gpu/ipu-v3/Makefile
+++ b/drivers/gpu/ipu-v3/Makefile
@@ -1,4 +1,5 @@
obj-$(CONFIG_IMX_IPUV3_CORE) += imx-ipu-v3.o
imx-ipu-v3-objs := ipu-common.o ipu-cpmem.o ipu-csi.o ipu-dc.o ipu-di.o \
- ipu-dp.o ipu-dmfc.o ipu-ic.o ipu-smfc.o ipu-vdi.o
+ ipu-dp.o ipu-dmfc.o ipu-ic.o ipu-image-convert.o \
+ ipu-smfc.o ipu-vdi.o