Hello,
This patch series adds support for scaling and rotation to the VSP1 driver on
the R-Car Gen3 SoCs.
Unlike Gen2 that can scale full resolution images, the Gen3 VSP scaler has a
width limitation that prevent full images from being processed in one go. They
must be partitioned in slices that are then processed individually. The
rotation engine present in the Gen3 VSP has a similar limitation, and so does
the SRU.
The hardware supports queuing processing of multiple slices without generating
any interrupt between slices, so partitioning the image will not raise the
number of interrupts. It however has an impact on CPU usage as the register
settings for each partitions need to be computed, but there's no way around
that.
The series starts with bug fixes (patches 01/13 to 04/13), followed by a few
preparatory changes (patches 05/13 to 07/13). Patches 08/13 to 12/13 then
implement image partitioning support, and patch 13/13 finally adds rotation
support.
All the changes have been tests with the VSP test suite available at
git://git.ideasonboard.com/renesas/vsp-tests.git master
on both Gen2 (H2 Lager) and Gen3 (H3 Salvator-X) boards. No regression has
been noticed.
Kieran Bingham (6):
v4l: vsp1: Ensure pipeline locking in resume path
v4l: vsp1: Repair race between frame end and qbuf handler
v4l: vsp1: Use DFE instead of FRE for frame end
v4l: vsp1: Support chained display lists
v4l: vsp1: Determine partition requirements for scaled images
v4l: vsp1: Support multiple partitions per frame
Laurent Pinchart (7):
v4l: vsp1: Prevent pipelines from running when not streaming
v4l: vsp1: Protect against race conditions between get and set format
v4l: vsp1: Disable cropping on WPF sink pad
v4l: vsp1: Fix RPF cropping
v4l: vsp1: Pass parameter type to entity configuration operation
v4l: vsp1: Replace .set_memory() with VSP1_ENTITY_PARAMS_PARTITION
v4l: vsp1: wpf: Implement rotation support
drivers/media/platform/vsp1/vsp1_bru.c | 33 +++-
drivers/media/platform/vsp1/vsp1_clu.c | 61 ++++---
drivers/media/platform/vsp1/vsp1_dl.c | 119 ++++++++++---
drivers/media/platform/vsp1/vsp1_dl.h | 1 +
drivers/media/platform/vsp1/vsp1_drm.c | 15 +-
drivers/media/platform/vsp1/vsp1_drv.c | 2 +-
drivers/media/platform/vsp1/vsp1_entity.c | 22 ++-
drivers/media/platform/vsp1/vsp1_entity.h | 25 ++-
drivers/media/platform/vsp1/vsp1_hsit.c | 20 ++-
drivers/media/platform/vsp1/vsp1_lif.c | 20 ++-
drivers/media/platform/vsp1/vsp1_lut.c | 42 +++--
drivers/media/platform/vsp1/vsp1_pipe.c | 3 +
drivers/media/platform/vsp1/vsp1_pipe.h | 8 +
drivers/media/platform/vsp1/vsp1_rpf.c | 106 +++++++-----
drivers/media/platform/vsp1/vsp1_rwpf.c | 86 ++++++----
drivers/media/platform/vsp1/vsp1_rwpf.h | 16 +-
drivers/media/platform/vsp1/vsp1_sru.c | 50 +++++-
drivers/media/platform/vsp1/vsp1_uds.c | 71 ++++++--
drivers/media/platform/vsp1/vsp1_video.c | 188 ++++++++++++++++++--
drivers/media/platform/vsp1/vsp1_wpf.c | 274 ++++++++++++++++++++++--------
20 files changed, 880 insertions(+), 282 deletions(-)
--
Regards,
Laurent Pinchart
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