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 -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
