Hi, This series add support for the VSP1 2-D histogram engine HGT. It's based on top of Laurent Pinchart tree at git://linuxtv.org/pinchartl/media.git hgo. And depends on Laurents patch '[PATCH] v4l: vsp1: Move subdev operations from HGO to common histogram code'. It is tested on Koelsch using a modified vsp-tests suite package, modifications can be found at https://git.ragnatech.se/vsp-tests hgt. * Changes since v2 - Add .try_ctrl() handling and return -EINVAL instead of trying to correct the hue areas. Thanks Laurent for suggesting a solution to this. - Fixed typo in pixel format documentation, thanks Laurent for spotting it. * Changes since v1 - Rebased on top of Laurents patch which made all subdev operations common for HGO and HGT. This removed a lot of code that is now shared. - Removed the Hue area configuration for the histogram pixel format. These values are set by userspace so it already knows them. - Updated pixel format documentation after input from Laurent. - Better aligned the code to the existing VSP code base. - Simplify check that hue areas are valid for the hardware. - Fixed spelling. Niklas Söderlund (2): v4l: Define a pixel format for the R-Car VSP1 2-D histogram engine v4l: vsp1: Add HGT support Documentation/media/uapi/v4l/meta-formats.rst | 1 + .../media/uapi/v4l/pixfmt-meta-vsp1-hgt.rst | 120 +++++++++++ drivers/media/platform/vsp1/Makefile | 2 +- drivers/media/platform/vsp1/vsp1.h | 3 + drivers/media/platform/vsp1/vsp1_drv.c | 33 ++- drivers/media/platform/vsp1/vsp1_entity.c | 33 ++- drivers/media/platform/vsp1/vsp1_entity.h | 1 + drivers/media/platform/vsp1/vsp1_hgt.c | 221 +++++++++++++++++++++ drivers/media/platform/vsp1/vsp1_hgt.h | 42 ++++ drivers/media/platform/vsp1/vsp1_pipe.c | 16 ++ drivers/media/platform/vsp1/vsp1_pipe.h | 2 + drivers/media/platform/vsp1/vsp1_regs.h | 9 + drivers/media/platform/vsp1/vsp1_video.c | 10 +- drivers/media/v4l2-core/v4l2-ioctl.c | 1 + include/uapi/linux/videodev2.h | 3 +- 15 files changed, 480 insertions(+), 17 deletions(-) create mode 100644 Documentation/media/uapi/v4l/pixfmt-meta-vsp1-hgt.rst create mode 100644 drivers/media/platform/vsp1/vsp1_hgt.c create mode 100644 drivers/media/platform/vsp1/vsp1_hgt.h -- 2.9.3
